The VFD Clock Software

OpenVFD incorporates a full Arduino® Uno® compatible platform and is built upon the Arduino® environment. The code is largely modular, written in Arduino® C for everyone to understand, to take apart and to participate.

We show you how the OpenVFD software works!

First we are going to take the OpenVFD code apart and see what it does in a usual loop. Then, more importantly we will see convenient functions that you can use to expand the functionality of OpenVFD.

Just like every Arduino® sketch, the firmware of OpenVFD starts with a void setup() initialization. While usual setup things like I/O configs are done, OpenVFD also makes sure to restore the user saved settings and display the welcome message.

OpenVFD jumps into the void loop() routine right after that. Three main procedures update the display, the LEDs and the serial data. So three things you need to know. Let's take it apart!

You will find a complete listing of the OpenVFD firmware below. Also download the OpenVFD firmware .ino file:

OpenVFD Firmware Version 2.01

File Format: Arduino Project File, 63 KB

1. PROCEDURES: INTERFACE ROUTINE (VFD DISPLAY CONTENT SERVICE)

void interfaceRoutine();

The routine interfaces the shift registers that switch the segments of the vacuum tube on and off. It is responsible for every number, every letter you see on the tubes. Assigning a different interface number will change the content displayed on the tubes:

• interface == 0: The tubes display the current time. Includes dot mode handler that updates the decimal dot position corresponding to the user-set dot mode.

• interface == 1: The tubes display the current date

• interface == 2: The tubes display the current temperature sensor reading in either °C or °F

• interface == 128: In this interface either the time or the date can be set

• interface == 69/70: Additional sensor reading display. Outputs current, min or max value of temperature sensor or microphone (0 to 1024). Remove block comment to enable. Accessible in temperature display mode

When registering a valid button press, void switchInterface(uint8_t input) can switch to another interface. Every switch is correctly executed when void clearInterface() ran correctly.

2. PROCEDURES: LED MODES (LED COLOR ILLUMINATION SERVICE)

void ledRoutine();

The LED routine checks for the current LED illumination mode. Inside a particular mode, it updates the color information and calls further procedures that communicate with the WS2812B LED.

• led == 0: Single color preset mode. Smoothly strives for the target color pattern on every update. Does nothing when target color is equal to current color

• led == 2: Serial mode reserved. Direct write of target color pattern

• led == 3: Serial mode reserved. Smooth strives for the target color pattern on every update. Does nothing when target color is equal to current color

• led == 6: Single color fade mode. Smoothly cycles through the color spectrum based on position of HSL wheel. Timer: chUpdater, 60 ms

• led == 7: Cross color fade mode. Smoothly cycles through the color spectrum based on position of HSL wheel with linear offset on individual LED. Timer: cfUpdater, 25 ms

• led == 8: Chase fade mode. Overwrites color values with new color based on position of HSL wheel in user-set direction when time interval has elapsed. Timer: chUpdater, 60 ms

• led == 10: Resistor code. Smoothly strives for the target color pattern on every update. Colors corresponding to ring colors on resistors update with the change of a second

• led == 11: Police car mode. Flashes in US police color pattern when time interval has elapsed. Timer: cfUpdater, 25 ms

• led == 20: Microphone mode. Overwrites color values with new color based on position of HSL wheel. The number of LEDs turned on correspond to the sound volume. When time interval has elapsed and new volume is less than previous volume, the LEDs turn off from right to left. Timer: vuUpdater, 80 ms

3. PROCEDURES: SERIAL (SERIAL COMMUNICATION SERVICE)

void serialRoutine();

The serial routine checks for availability of serial data. When serial data is present, serialRoutine() executes a command when the command data complies to a 24 byte protocol with start byte == 0x23 and stop byte == 0x24 (command). The command may request a 10 byte reply with the same start and stop byte (response).

Serial Protocol Documentation

File Format: PDF File, 29 KB

4. FUNCTIONS: DISPLAY WRITE COMMAND

void displayWrite(uint8_t renderOption, uint8_t ODDR, int delayOption, char* message)

displayWrite is the final instance called when data is ready for display on the tubes of OpenVFD. It coordinates functions that convert digital numbers, letters, symbols and decimal dot position into seven segment information. There are four arguments required to ensure correct operation.

• uint8_t renderOption: Display time, date, temperature or custom message. Time and date information is obtained by requesting data from the RTC directly. Temperature information is taken from the global uint32_t ts variable

• uint8_t ODDR: Output dot overlay register. The six least significant bits represent the decimal dot state of each of the six displays. A bit set turns on a corresponding decimal dot

• int delayOption: Optional delay on message. Calls delay() if value isn't 0

• char* message: Only impacts when uint8_t renderOption is set to message display. Converts incoming 6-byte long char array into seven segment data

5. FUNCTIONS: CONFIGURATION LOAD, SAVE AND RESTORE

• void loadConfig(): Load all saved global variables from EEPROM memory, overwriting current variables

• void saveConfig(): Save all saved global variables to EEPROM memory. Success message on completion

• void firstConfig(): Load default values, overwriting current variables. Note that no save/EEPROM operation is performed!

6. FUNCTIONS: LED

uint32_t ledPhase(uint8_t phase);

The notorious HSL wheel. Input is a value between 0 and 255 (wheel position). Returns wheel position in RGBcolor information. Bits 0-7: blue, bits 8-15: red, bits 16-23: green. Most significant bits unused.Visualize it here!

void render();

Writes data inside rgb_arr[] to the six WS2812B LEDs

7. USEFUL TOOL: TIMER

Known as intervalEvent are timers based on the millis() function and thus not taking up any computation time unless on update call. They are useful for creating finite state machines (FSM) that OpenVFD uses for LED timing and dot overlay.

• intervalEvent newiE(long p1): Create a new intervalEvent with the interval specified in p1 as long

• void resetiE(intervalEvent &input): Reset the elapsed time to zero

• boolean updateIntervalEvent(intervalEvent &input): Check if the interval has elapsed already. Returns 1 if yes

8. USEFUL TOOL: BUTTON STATE CHECKING

This tool is a bit tricky admittedly, but fairly easy to use once you understand how it works.

• uint8_t checkOption(int buttonPin): Checks if a long or short press is active. Returns either SHORTPRESS (== 1) or LONGPRESS (== 2) on specified button pin number. OpenVFD uses four global button activity state variables for the four buttons that update in every loop using void cButtonRoutine()

• Check the global button activity state variables to see if a short or long press was detected

9. SPECIFIC FUNCTIONS: SENSOR DATA PROCESSING

• uint8_t getMicData(uint16_t threshold): Returns microphone sound intensity as 8 bit value by logarithmically scaling calculated amplitude based on 196 (arbitrary value) readings. uint16_t threshold sets the minimum value the mic is sensitive to. Clipping is performed on the values below

• uint32_t t_avg(): Returns fixed point temperature sensor mean scaling in celsius or fahrenheit multiplied by 100 for more simple display output.

10. Appendix: Latest Firmware Code Listing

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/*MIT License Copyright (c) 2017 Frank F. Zheng, Date: 07/06/2017, 06:12 PM Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.*/ // --------- Includes --------- #include <RTClib.h> // RTC Clock Library #include <Wire.h> // RTC Clock Communication Library (Wire) #include <digitalWriteFast.h> // Clock Cycle Optimized Output #include <EEPROM.h> // EEPROM Access // --------- Pin Mapping Defines --------- // Pin Name | A | ATMEGA Mapping | Comment, Schematics Signal Name // ------------------------------------------------------------------------------------------ #define CLOCK_PIN 2 // ATMEGA: 4 74HC595 SPI Clock Pin, SCK #define LATCH_PIN 3 // ATMEGA: 5 74HC595 SPI Latch Pin, RCK #define DATA_PIN 4 // ATMEGA: 6 74HC595 SPI Data Pin, SER #define B_TEN_PIN 5 // ATMEGA: 11 Time Enable Button Input Pin, B_TEN #define B_CHY_PIN 6 // ATMEGA: 12 Color Set / Hour / Year Button Input Pin, B_CHY #define B_VMM_PIN 7 // ATMEGA: 13 VU Sensitivity / Minute / Month Button Input Pin, B_VMM #define B_MSD_PIN 8 // ATMEGA: 14 Clock Mode / Second / Day Button Input Pin, B_MSD #define LED_PIN 13 // ATMEGA: 19 LED Pin, LEDPIN #define MIC_PIN A0 // ATMEGA: 23 Microphone Input Pin, MIN #define STEM_PIN A1 // ATMEGA: 24 Temperature Sensor Input Pin, STEM // ------------------------------------------------------------------------------------------ #define SHORTPRESS 1 // Short press is 1 #define LONGPRESS 2 // Long press is 2 #define NUM_RGB 6 // 6 LEDs for OpenVFD #define NUM_BYTES (NUM_RGB * 3) // 3 * 6 = 18 bytes #define PORT (PORTB) // Digital pin's port #define PORT_PIN (PORTB5) // Digital pin's bit position #define NUM_BITS (8) // Const 8 // Used for LED crossfade phase value #define PI85 0.0369599135716446263348546280 #define DS3231 // FIRMWARE VERSION STRING // Version 2.01 final, Date: 07/06/2017, 06:12 PM char fwString[7] = {'v', '2', '.', '0', '1', ' ', ' '}; // --------- Component Initializer --------- RTC_DS1307 rtc; // --------- Global Variable Initializer --------- uint8_t interface = 0; // Global Display Mode uint8_t led = 0; // Global LED Mode char welcomeText[6] = {'H', 'E', 'L', 'L', 'O', ' '}; uint8_t tsmCounter = 0; // Temperature Sensor Measurement Amount Counter uint32_t tsmValues = 0; // Temperature sensor measurement storage uint32_t ts; // Mean temperature value uint8_t isFahrenheit = 0; // Fahrenheit flag uint8_t INTF0_DM = 0; // Interface 0 dot mode counter uint8_t INTF0_DP = 0; // Interface 0 dot position uint8_t INTF0_ds = 0; // Interface 0 dot mode: second flip time delta flag boolean INTF0_dr = false; // Interface 0 dot mode: second flip direction boolean dateSet = false; // Date set flag boolean setOnceFlag = false; // Set once flag. Is used to prevent the clock from ticking on when entered time/date set mode // ---- LED Control variables uint8_t* rgb_arr = NULL; // LED color storage array uint8_t* target_arr = NULL; // Smooth fade target array uint32_t t_f; // LED time check // ---- LED Preset configuration store. ATTENTION: Different ordering! // | G| R| B| // --------------- #define LED0_cOffset 11 // # Single color presets #define LED0_mcOffset (LED0_cOffset - 1) // # Single color presets - 1 const uint8_t led_scPresets[][3] = {{ 0, 0, 0}, // Off! ("Off") {255, 255, 255}, // White ("On") {200, 255, 32}, // Warm White ("LON := Light On") { 0, 255, 0}, // Red ("Red") {255, 0, 0}, // Green ("GRN := Green") { 0, 0, 255}, // Blue ("Blue") {125, 255, 0}, // Yellow ("YELO = Yellow") { 30, 255, 0}, // Orange ("ORNG = Orange") {255, 0, 128}, // Cyan ("Cyan") { 0, 255, 170}, // Magenta ("PRED := Purple Red") { 0, 200, 255} // Purple ("PRPL := Purple") }; const uint8_t led_Presets[][NUM_BYTES] = { { 0, 200, 255, // Rainbow colors! 0, 0, 255, 255, 0, 0, 128, 255, 0, 30, 255, 0, 0, 255, 0}, {128, 255, 255, // Pastel rainbow! 128, 50, 255, 255, 0, 128, 255, 128, 128, 255, 255, 128, 100, 255, 128}, {255, 0, 0, // Green to blue! 240, 0, 64, 216, 0, 128, 128, 0, 216, 64, 0, 240, 0, 0, 255}, { 0, 255, 3, // Red to blue! 0, 255, 10, 0, 240, 25, 0, 200, 80, 0, 100, 150, 0, 50, 255}, { 3, 255, 0, // Red to green! 30, 255, 0, 60, 240, 0, 100, 180, 0, 180, 180, 0, 255, 20, 0} }; // ---- LED Resistor preset GRB 0: Off 1: Brown 2: Red 3: Orange 4: Yellow 5: Green 6: Blue 7: Purple 8: Gray 9: White const uint8_t led_Resistor[][3] = {{0, 0, 0}, {128, 255, 64}, {0, 255, 0}, {30, 255, 0}, {125, 255, 0}, {255, 0, 0}, {0, 0, 255}, {0, 200, 255}, {40, 40, 60}, {255, 255, 255}}; uint8_t LED0P = 0; // LED preset mode index // ---- LED Preset configuration set message const char LED0PM[][4] = { {' ', 'O', 'F', 'F'}, {' ', ' ', 'O', 'N'}, {' ', 'L', 'O', 'N'}, {' ', 'R', 'E', 'D'}, {' ', 'G', 'R', 'N'}, {'B', 'L', 'U', 'E'}, {'Y', 'E', 'L', 'O'}, {'O', 'R', 'N', 'G'}, {'C', 'Y', 'A', 'N'}, {'P', 'R', 'E', 'D'}, {'P', 'R', 'P', 'L'}, {' ', 'R', 'N', 'B'}, {'P', 'R', 'N', 'B'}, {' ', 'G', 2, 'B'}, {' ', 'R', 2, 'B'}, {' ', 'R', 2, 'G'}}; uint8_t LED6_st = 0; // LED regular fade position // LED cross fade starting position uint8_t LED7_dp = 0; // LED cross fade position uint8_t LED7_delta = 42; // LED cross fade delta // uint8_t led_CrossPosition[6] = {0, 42, 85, 127, 170, 212}; uint8_t LED8_ds = 0; // LED chase fade second flip uint8_t LED8_dp = 0; // LED chase fade direction state boolean LED8_dr = 0; // LED chase fade direction flag uint8_t LED8_st = 0; // LED chase fade FSM position uint8_t LED8_ph = 0; // LED chase fade rainbow position const char LED8PM[][4] = { {' ', 'R', '-', 'L'}, {' ', 'L', '-', 'R'}, {'F', 'L', 'I', 'P'}, {'C', 'L', 'A', 'P'}}; uint8_t LED11_pt = 0; // LED cop mode pattern uint8_t LED11_st = 0; // LED cop mode FSM position const uint8_t LED11_colors[][3] = {{ 0, 255, 10}, // Cop red { 0, 15, 255}}; // Cop blue uint8_t LED20_st = 0; // LED microphone mode off fader state boolean LED20_dst = false; // LED microphone mode blink delay state uint16_t LED20_sMin = 10; // Sensitivity threshold value uint8_t LED20_cp[6] = {0, 10, 20, 30, 40, 50}; // ---- Menu/Interface selector variables long p_t[4] = {0, 0, 0, 0}; // Button press timer const long lp_t = 500; // Long press threshold boolean p[4] = {false, false, false, false}; // Button enable boolean lp[4] = {false, false, false, false}; // Long press enable uint8_t cTEN, cCHY, cVMM, cMSD = 0; // Check state variable // ------------------------------------------------------------------------------------------ // Time interval updating event class: Clocked FSM typedef struct intervalEvent{ unsigned long interval; unsigned long previousMillis; } intervalEvent; intervalEvent newiE(long p1){ intervalEvent iE; iE.interval = p1; iE.previousMillis = 0; return iE; } void resetiE(intervalEvent &input){ input.previousMillis = 0; } boolean updateIntervalEvent(intervalEvent &input){ unsigned long currentMillis = millis(); if((currentMillis - input.previousMillis) > input.interval){ input.previousMillis = currentMillis; return true; } else return false; return false; } intervalEvent tsUpdater, dotUpdater, jdotUpdater, sdotUpdater, cfUpdater, chUpdater, vuUpdater, vu2Updater; // ------------------------------------------------------------------------------------------ void setup(){ Serial.begin(115200); // Output Pin Initializer pinMode(LED_PIN, OUTPUT); pinMode(CLOCK_PIN, OUTPUT); pinMode(LATCH_PIN, OUTPUT); pinMode(DATA_PIN, OUTPUT); analogReference(EXTERNAL); // Input Pin Initializer pinMode(B_TEN_PIN, INPUT); pinMode(B_CHY_PIN, INPUT); pinMode(B_VMM_PIN, INPUT); pinMode(B_MSD_PIN, INPUT); pinMode(MIC_PIN, INPUT); pinMode(STEM_PIN, INPUT); // LED initializer digitalWriteFast(LED_PIN, LOW); if((rgb_arr = (uint8_t*) malloc(NUM_BYTES))) memset(rgb_arr, 0, NUM_BYTES); if((target_arr = (uint8_t*) malloc(NUM_BYTES))) memset(target_arr, 0, NUM_BYTES); render(); // Wire, RTC Initializer wrInit(); // Welcome message, read from EEPROM(?) welcome(welcomeText); // Initialize global saved values loadConfig(); // Create temperature sensor updater as interval event with 15 ms update interval tsUpdater = newiE(8); dotUpdater = newiE(800); jdotUpdater = newiE(500); sdotUpdater = newiE(80); cfUpdater = newiE(25); chUpdater = newiE(60); vuUpdater = newiE(80); vu2Updater = newiE(200); } void loop(){ // Button check routine cButtonRoutine(); // Interface render routine interfaceRoutine(); // LED render routine ledRoutine(); // Serial routine serialRoutine(); } // This is the main VFD Display interface loop routine void interfaceRoutine(){ // This is the launch interface with standard clock ticking if(interface == 0){ // If intervall length exceeded, update dot position // BEGIN OF DOT MODE HANDLER if(INTF0_DM == 0){ if(updateIntervalEvent(dotUpdater)) INTF0_DP++; if(INTF0_DP == 0) displayWrite(0, 0b00010100, 0, 0); else if(INTF0_DP == 1) displayWrite(0, 0, 0, 0); else INTF0_DP = 0; } else if(INTF0_DM == 1){ if(updateIntervalEvent(jdotUpdater)) INTF0_DP++; if(INTF0_DP == 0) displayWrite(0, 0b00100001, 0, 0); else if(INTF0_DP == 1) displayWrite(0, 0b00010010, 0, 0); else if(INTF0_DP == 2) displayWrite(0, 0b00001100, 0, 0); else if(INTF0_DP == 3) displayWrite(0, 0b00010010, 0, 0); else INTF0_DP = 0; } else if(INTF0_DM == 2){ // This function is damn lit. Once it detects a change in second, // the decimal dot will slide over the displays. // Get the current time and compare it with the previous timestamp DateTime now = rtc.now(); if(INTF0_ds != now.second()){ // Time has changed -> Reset dot position, remember timestamp, change direction INTF0_DP = 0; INTF0_ds = now.second(); INTF0_dr = !INTF0_dr; } // Next position if(updateIntervalEvent(sdotUpdater)) INTF0_DP++; // From right to left if(INTF0_dr){ if(INTF0_DP < 5) displayWrite(0, (1 << INTF0_DP), 0, 0); else displayWrite(0, 0b00100000, 0, 0); } // From left to right else{ if(INTF0_DP < 5) displayWrite(0, (0b00100000 >> INTF0_DP), 0, 0); else displayWrite(0, 0b00000001, 0, 0); } } else if(INTF0_DM == 3) displayWrite(0, 0, 0, 0); else INTF0_DM = 0; // BEGIN OF BUTTON HANDLER // Short press on TEN will change interface to date display if(cTEN == SHORTPRESS) switchInterface(1); // Enter date interface if(cTEN == LONGPRESS){ // Enter time set interface char message[6] = {'T', ' ', 'S', 'E', 'T', ' '}; displayWrite(3, 0x00, 1000, message); dateSet = false; switchInterface(128); } if(cMSD == SHORTPRESS){ clearInterface(); INTF0_DM++; } // Long press will save all settings. if(cMSD == LONGPRESS){ clearInterface(); saveConfig(); } } // This is the date display else if(interface == 1){ displayWrite(1, 0b00010100, 0, 0); // Short press on TEN will change interface to temperature display if(cTEN == SHORTPRESS) switchInterface(2); if(cTEN == LONGPRESS){ // Enter date set interface char message[6] = {'D', ' ', 'S', 'E', 'T', ' '}; displayWrite(3, 0x00, 1000, message); dateSet = true; switchInterface(128); } } // This is the temperature sensor interface else if(interface == 2){ // Create temperature reading collector // Check for value update if(updateIntervalEvent(tsUpdater)){ // If there's no mean yet if(ts == 0){ char k[6] = {'L', 'O', 'A', 'D', 'I', 'N'}; displayWrite(3, 0b00000000, 0, k); } // Add every STEM read value tsmValues += analogRead(STEM_PIN); tsmCounter++; // On 250 values, get mean of values by calling t_avg(int input) if(tsmCounter == 250) ts = t_avg(); } if(ts != 0) displayWrite(2 + (isFahrenheit << 1), 0b00010000, 0, 0); // Short press on TEN will change interface to standard clock display if(cTEN == SHORTPRESS) switchInterface(0); // Remove comment and block comment on interface 69/70 to enable. This is the hidden sensor debug menu! :p // if(cVMM == LONGPRESS) switchInterface(69); if(cMSD == SHORTPRESS){ clearInterface(); if(isFahrenheit) isFahrenheit = 0; else isFahrenheit = 1; } } // Remove comment block to enable sensor debug interface /* // Temperature sensor debug interface. cTEN: max value, cCHY: min value else if(interface == 69){ static boolean vMax; static boolean vMin; static uint16_t readMax = 0; static uint16_t readMin = 1023; uint16_t tsRead = analogRead(STEM_PIN); if(tsRead > readMax) readMax = tsRead; else if(tsRead < readMin) readMin = tsRead; char tsDisplay[6]; tsDisplay[0] = ' '; if(vMax){ tsRead = readMax; tsDisplay[0] = 'P'; } if(vMin){ tsRead = readMin; tsDisplay[0] = '-'; } tsDisplay[1] = ' '; tsDisplay[2] = tsRead / 1000; tsDisplay[3] = (tsRead % 1000) / 100; tsDisplay[4] = (tsRead % 100) / 10; tsDisplay[5] = tsRead % 10; displayWrite(3, 0x00, 20, tsDisplay); if(cTEN == LONGPRESS){ vMax = !vMax; vMin = false; clearInterface(); } if(cCHY == LONGPRESS){ vMin = !vMin; vMax = false; clearInterface(); } if(cVMM == LONGPRESS) switchInterface(70); } // Microphone debug interface. cTEN: max value, cCHY: min value else if(interface == 70){ static boolean vMax; static boolean vMin; static uint16_t readMax = 0; static uint16_t readMin = 1023; uint16_t micRead = analogRead(MIC_PIN); if(micRead > readMax) readMax = micRead; else if(micRead < readMin) readMin = micRead; char micDisplay[6]; micDisplay[0] = ' '; if(vMax){ micRead = readMax; micDisplay[0] = 'P'; } if(vMin){ micRead = readMin; micDisplay[0] = '-'; } micDisplay[1] = ' '; micDisplay[2] = micRead / 1000; micDisplay[3] = (micRead % 1000) / 100; micDisplay[4] = (micRead % 100) / 10; micDisplay[5] = micRead % 10; displayWrite(3, 0x00, 20, micDisplay); if(cTEN == LONGPRESS){ vMax = !vMax; vMin = false; clearInterface(); } if(cCHY == LONGPRESS){ vMin = !vMin; vMax = false; clearInterface(); } if(cVMM == LONGPRESS) switchInterface(2); } */ // 128: Time/Date set menu! else if(interface == 128){ // Blink active set in time interval of 800 ms // Switch between displayWrite(0) and displayWrite(3) for individual inactive segments // Use intervalEvent jdotUpdater which has the same attributes static boolean offActive = false; static uint8_t blinkDisplay = 0; static uint8_t tmpHour, tmpMinute, tmpSecond, tmpDay, tmpMonth, tmpYear = 0; DateTime now = rtc.now(); if(setOnceFlag == false){ tmpHour = now.hour(); tmpMinute = now.minute(); tmpSecond = now.second(); tmpDay = now.day(); tmpMonth = now.month(); tmpYear = now.year() % 100; setOnceFlag = true; } if(updateIntervalEvent(jdotUpdater)) offActive = !offActive; // Flip boolean char tRenderArray[6] = {0, 0, 0, 0, 0, 0}; if(!dateSet){ // If time set tRenderArray[5] = tmpSecond % 10; tRenderArray[4] = tmpSecond / 10; tRenderArray[3] = tmpMinute % 10; tRenderArray[2] = tmpMinute / 10; tRenderArray[1] = tmpHour % 10; tRenderArray[0] = tmpHour / 10; } else{ // If date set tRenderArray[5] = tmpYear % 10; tRenderArray[4] = (tmpYear % 100) / 10; tRenderArray[3] = tmpMonth % 10; tRenderArray[2] = tmpMonth / 10; tRenderArray[1] = tmpDay % 10; tRenderArray[0] = tmpDay / 10; } if(offActive){ // Blink corresponding display parameter if(blinkDisplay == 0){ tRenderArray[0] = ' '; tRenderArray[1] = ' '; } else if(blinkDisplay == 1){ tRenderArray[2] = ' '; tRenderArray[3] = ' '; } else if(blinkDisplay == 2){ tRenderArray[4] = ' '; tRenderArray[5] = ' '; } } displayWrite(3, 0x00, 0, tRenderArray); // Short press on TEN will leave time set mode and enter time interface again if(cTEN == SHORTPRESS){ if(!dateSet) switchInterface(0); else switchInterface(1); } // Short press on CHY changes the active parameter (h/m/s) if(cCHY == SHORTPRESS){ clearInterface(); blinkDisplay++; if(blinkDisplay == 3) blinkDisplay = 0; } if(cVMM == SHORTPRESS){ clearInterface(); // parameter-- if(blinkDisplay == 0){ // Set hour or day if(!dateSet){ // Set hour if (tmpHour > 0) tmpHour--; else if (tmpHour == 0) tmpHour = 23; } else{ // Set day int dMax = 31; if (tmpMonth == 2) dMax = 29; else if (tmpMonth == 4) dMax = 30; else if (tmpMonth == 6) dMax = 30; else if (tmpMonth == 9) dMax = 30; else if (tmpMonth == 11) dMax = 30; if (tmpDay > 1) tmpDay--; else if (tmpDay == 1) tmpDay = dMax; } } else if(blinkDisplay == 1){ if(!dateSet){ if (tmpMinute > 0) tmpMinute--; else if (tmpMinute == 0) tmpMinute = 59; } else{ if (tmpMonth > 1) tmpMonth--; else if (tmpMonth == 1) tmpMonth = 12; } } else if(blinkDisplay == 2){ if(!dateSet){ if (tmpSecond > 0) tmpSecond--; else if (tmpSecond == 0) tmpSecond = 59; } else{ if (tmpYear > 0) tmpYear--; else if (tmpYear == 0) tmpYear = 30; } } } if(cMSD == SHORTPRESS){ clearInterface(); // parameter++ if(blinkDisplay == 0){ // Set hour or day if(!dateSet){ // Set hour if (tmpHour < 23) tmpHour++; else if (tmpHour == 23) tmpHour = 0; } else{ // Set day int dMax = 31; if (tmpMonth == 2) dMax = 29; else if (tmpMonth == 4) dMax = 30; else if (tmpMonth == 6) dMax = 30; else if (tmpMonth == 9) dMax = 30; else if (tmpMonth == 11) dMax = 30; if (tmpDay < dMax) tmpDay++; else if (tmpDay == dMax) tmpDay = 1; } } else if(blinkDisplay == 1){ if(!dateSet){ if (tmpMinute < 59) tmpMinute++; else if (tmpMinute == 59) tmpMinute = 0; } else{ if (tmpMonth < 12) tmpMonth++; else if (tmpMonth == 12) tmpMonth = 1; } } else if(blinkDisplay == 2){ if(!dateSet){ if (tmpSecond < 59) tmpSecond++; else if (tmpSecond == 59) tmpSecond = 0; } else{ if (tmpYear < 30) tmpYear++; else if (tmpYear == 30) tmpYear = 0; } } } // Transfer to RTC Wire.beginTransmission(0x68); Wire.write(byte(0)); Wire.write(decToBcd(tmpSecond)); Wire.write(decToBcd(tmpMinute)); Wire.write(decToBcd(tmpHour)); Wire.write(0x06); Wire.write(decToBcd(tmpDay)); Wire.write(decToBcd(tmpMonth)); Wire.write(decToBcd(tmpYear)); Wire.write(byte(0)); Wire.endTransmission(); setOnceFlag = false; // Reset static flag } } // Button check routine void cButtonRoutine(){ cTEN = checkOption(B_TEN_PIN); // Short press: main interface switch cCHY = checkOption(B_CHY_PIN); // Short press: color switch cVMM = checkOption(B_VMM_PIN); cMSD = checkOption(B_MSD_PIN); // Short press: display mode switch } // This is the LED loop routine void ledRoutine(){ // LED 0: Color preset if(led == 0){ // If not single Color if(LED0P > LED0_mcOffset){ for(uint8_t i = 0; i < NUM_BYTES; i++) target_arr[i] = led_Presets[LED0P - LED0_cOffset][i]; ledSmoothWrite(); } else{ // Save some RAM for(uint8_t offset = 0; offset < NUM_BYTES; offset += 3){ target_arr[offset] = led_scPresets[LED0P][0]; target_arr[offset + 1] = led_scPresets[LED0P][1]; target_arr[offset + 2] = led_scPresets[LED0P][2]; } ledSmoothWrite(); } if(cCHY == SHORTPRESS){ led = 6; // Switch to regular fade char k[6] = {'C', ' ', 'F', 'A', 'D', 'E'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } if(cVMM == SHORTPRESS){ LED0P++; if(LED0P == 16) LED0P = 0; // Dynamic memory saving char LED0PMC[6]; LED0PMC[0] = 'C'; LED0PMC[1] = ' '; for(uint8_t i = 2; i < NUM_RGB; i++) LED0PMC[i] = LED0PM[LED0P][i - 2]; displayWrite(3, 0x00, 500, LED0PMC); // Write change message clearInterface(); } } // LED 2: Serial accessible color mode else if(led == 2){ // ledDirectWrite(scustom_arr); if(cCHY == SHORTPRESS){ led = 6; // Switch to regular fade char k[6] = {'C', ' ', 'F', 'A', 'D', 'E'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } } // LED 3: Serial smooth write color mode else if(led == 3){ ledSmoothWrite(); if(cCHY == SHORTPRESS){ led = 6; // Switch to regular fade char k[6] = {'C', ' ', 'F', 'A', 'D', 'E'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } } // LED 6: Regular fade else if(led == 6){ if(updateIntervalEvent(chUpdater)) LED6_st++; uint32_t phase = ledPhase(LED6_st); for(uint8_t offset = 0; offset < NUM_BYTES; offset += 3){ target_arr[offset] = (uint8_t)((phase >> 16) & 0xFF); // G target_arr[offset + 1] = (uint8_t)((phase >> 8) & 0xFF); // R target_arr[offset + 2] = (uint8_t)(phase & 0xFF); // B } ledSmoothWrite(); if(cCHY == SHORTPRESS){ led = 7; // Switch to cross fade char k[6] = {'C', ' ', 'C', 'R', 'F', 'D'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } } // LED 7: Cross fade! else if(led == 7){ if(updateIntervalEvent(cfUpdater)) LED7_dp++; // Just let it overflow and begin from 0 :p uint8_t offset = 0; // Cycle position for(uint8_t i = 0; i < NUM_RGB; i++){ uint32_t phase = ledPhase(LED7_dp + (i * LED7_delta)); rgb_arr[offset] = (uint8_t)((phase >> 16) & 0xFF); // G rgb_arr[offset + 1] = (uint8_t)((phase >> 8) & 0xFF); // R rgb_arr[offset + 2] = (uint8_t)(phase & 0xFF); // B offset += 3; } render(); if(cCHY == SHORTPRESS){ led = 8; // To chase fade (LED 8) char k[6] = {'C', ' ', 'C', 'H', 'F', 'D'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } if(cVMM == SHORTPRESS){ char k[6] = {'D', 'E', 'L', ' ', ' ', ' '}; // Higher delta: wider rainbow if(LED7_delta == 42) LED7_delta = 10; else if(LED7_delta == 10) LED7_delta = 21; else if(LED7_delta == 21) LED7_delta = 42; // Get the two digits of the delta k[4] = LED7_delta / 10; k[5] = LED7_delta % 10; displayWrite(3, 0x00, 1000, k); clearInterface(); } } // LED 8: Chase fade! else if(led == 8){ if(LED8_dp < 3){ // If reactive to second flip DateTime now = rtc.now(); // Get time if(LED8_ds != now.second()){ // If the second has changed if(LED8_dp == 2) LED8_dr = !LED8_dr; // Change chase fade direction LED8_st = 0; // Reset state machine LED8_ds = now.second(); // Overwrite old second with new second LED8_ph += 22; // Let it overflow and get different values. } } else{ // If reactive to sound if(getMicData(40) > 196){ // If the intensity of the audio samples are higher than 196 - threshold if(updateIntervalEvent(vu2Updater)){ // And some time has elapsed LED8_dr = !LED8_dr; // Flip direction LED8_st = 0; // Reset state machine LED8_ph += 29; // And get some different color values! } } } if(LED8_st < 6){ // Only run this code fragment if state is in range (< 6) uint32_t phase = ledPhase(LED8_ph); // Get new phase uint8_t offset = 0; if(!LED8_dr) offset = LED8_st * 3; // Get manipulating position else offset = NUM_BYTES - ((LED8_st * 3) + 3); // If direction backward, then backward! rgb_arr[offset] = (uint8_t)((phase >> 16) & 0xFF); // Manipulate G rgb_arr[offset + 1] = (uint8_t)((phase >> 8) & 0xFF); // Manipulate R rgb_arr[offset + 2] = (uint8_t)(phase & 0xFF); // Manipulate B } render(); if(updateIntervalEvent(chUpdater)) LED8_st++; if(cCHY == SHORTPRESS){ led = 10; // To resistor mode (LED 10) char k[6] = {'C', 'R', 'C', 'O', 'D', 'E'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } if(cVMM == SHORTPRESS){ // Short press results change in direction // LED8_dp = 0: From right to left (default) // LED8_dp = 1: From left to right // LED8_dp = 2: Direction flip // LED8_dp = 3: Flip on clap or any significant change in microphone input value LED8_dp++; if(LED8_dp == 0) LED8_dr = false; else if(LED8_dp == 1) LED8_dr = true; else if(LED8_dp == 2) LED8_dr = !INTF0_dr; else if(LED8_dp == 4) LED8_dp = 0; char LED8PMC[6]; for(uint8_t i = 0; i < 2; i++) LED8PMC[i] = ' '; for(uint8_t i = 2; i < NUM_RGB; i++) LED8PMC[i] = LED8PM[LED8_dp][i - 2]; displayWrite(3, 0x00, 1000, LED8PMC); clearInterface(); } } // LED 10: Resisor color code! else if(led == 10){ uint8_t clockData[NUM_RGB]; // Get the time once again DateTime now = rtc.now(); clockData[0] = now.second() % 10; clockData[1] = now.second() / 10; clockData[2] = now.minute() % 10; clockData[3] = now.minute() / 10; clockData[4] = now.hour() % 10; clockData[5] = now.hour() / 10; uint8_t offset = 0; for(uint8_t i = 0; i < 6; i++){ target_arr[offset] = led_Resistor[clockData[i]][0]; // G target_arr[offset + 1] = led_Resistor[clockData[i]][1]; // R target_arr[offset + 2] = led_Resistor[clockData[i]][2]; // B offset += 3; } ledSmoothWrite(); if(cCHY == SHORTPRESS){ led = 11; // Switch to police light mode! char k[6] = {'C', ' ', ' ', 'C', 'O', 'P'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } } // LED 11: Cop lights! else if(led == 11){ // cfUpdater has update time of 25 ms (ideal for cop mode) if(updateIntervalEvent(cfUpdater)){ if(LED11_st < 13) LED11_st++; else if(LED11_st == 13) LED11_st = 0; } if(LED11_pt == 0){ if(LED11_st == 0) copHalfRender(0, 1); // b | r fill else if(LED11_st == 5){ for(uint8_t i = 0; i < NUM_BYTES; i += 3) for(uint8_t j = 0; j < 3; j++) rgb_arr[i + j] = led_scPresets[0][j]; render(); // off fill } else if(LED11_st == 6) copHalfRender(0, 1); // b | r fill else if(LED11_st == 7) copHalfRender(1, 0); // r | b fill else if(LED11_st == 12){ for(uint8_t i = 0; i < NUM_BYTES; i += 3) for(uint8_t j = 0; j < 3; j++) rgb_arr[i + j] = led_scPresets[1][j]; render(); // white fill } else if(LED11_st == 13) copHalfRender(1, 0); // r | b fill } if(cCHY == SHORTPRESS){ led = 20; // Switch to microphone mode! char k[6] = {'C', 'S', 'O', 'U', 'N', 'D'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } } // LED 20: Microphone mode! else if(led == 20){ // If time interval passed, decrease turned on LEDs by one (regular state update) if(updateIntervalEvent(vuUpdater)) if(LED20_st < 7) LED20_st++; // Cross fade LED color position update if(updateIntervalEvent(cfUpdater)) for(uint8_t i = 0; i < NUM_RGB; i++) LED20_cp[i]++; // Read microphone information, convert value to updateable state // Get mic data (log), divide by 36 uint8_t rLevel = 6 - (uint8_t)(round(((double)getMicData(LED20_sMin)) / 42.5)); // Write the less valued LEDs only when the sound is actively changed if(LED20_st >= rLevel){ LED20_st = rLevel; // If the new state is lower than the previous state: Overwrite current state with new rLevel (interrupt state) LED20_dst = false; // Delay state = 0 (reset) } else{ if(updateIntervalEvent(vu2Updater)) LED20_dst = true; // If the time has elapsed, write empty } if(LED20_st < 7){ // If new information uint8_t offset = 0; for(uint8_t i = 0; i < (6 - LED20_st); i++){ uint32_t phase = ledPhase(LED20_cp[i]); rgb_arr[offset] = (uint8_t)((phase >> 16) & 0xFF); // G rgb_arr[offset + 1] = (uint8_t)((phase >> 8) & 0xFF); // R rgb_arr[offset + 2] = (uint8_t)(phase & 0xFF); // B offset += 3; } // And set all the others zero for(uint8_t lOffset = offset; lOffset < NUM_BYTES; lOffset++) rgb_arr[lOffset] = 0; // Black out the inactives if(LED20_dst){ if(LED20_st < 6){ uint8_t tOffset = 0; // Temporary offset variable for(uint8_t i = 0; i < (5 - LED20_st); i++){ rgb_arr[tOffset] = 0; rgb_arr[tOffset + 1] = 0; rgb_arr[tOffset + 2] = 0; tOffset += 3; } } } render(); } if(cCHY == SHORTPRESS){ led = 0; // Back to LED 0 char k[6] = {' ', 'C', 'O', 'L', 'O', 'R'}; displayWrite(3, 0x00, 1000, k); clearInterface(); } if(cVMM == SHORTPRESS){ char k[6] = {'S', 'E', 'N', ' ', ' ', ' '}; // Set different sensitivity values if(LED20_sMin == 5) LED20_sMin = 10; else if(LED20_sMin == 10) LED20_sMin = 20; else if(LED20_sMin == 20) LED20_sMin = 30; else if(LED20_sMin == 30) LED20_sMin = 40; else if(LED20_sMin == 40) LED20_sMin = 5; // Get the two digits of the sensitivity number k[4] = LED20_sMin / 10; k[5] = LED20_sMin % 10; displayWrite(3, 0x00, 1000, k); clearInterface(); } } } // This routine is to check for incoming serial data void serialRoutine(){ // This condition makes the beginning of everything serial. int sRead = Serial.available(); if(sRead > 0){ // If the communication pattern of 16 bytes is detected, write a message // Serial.print(sRead); uint8_t* inputBuffer; if((inputBuffer = (uint8_t*)malloc(24))) memset(inputBuffer, 0, 24); Serial.readBytes(inputBuffer, 24); // If aligned protocol is detected if((inputBuffer[0] == 0x23) && (inputBuffer[23] == 0x24)){ uint8_t cmdByte = inputBuffer[1]; // If LED set is detected if(cmdByte == 0x01){ // Set LED mode to 2 (Serial custom mode) led = 2; // And write LED information to target for(uint8_t i = 2; i < 20; i++) rgb_arr[i - 2] = inputBuffer[i]; render(); } // If LED smooth set is detected else if(cmdByte == 0x02){ // Set LED mode to 3 (Serial smooth write) led = 3; // And write LED information to target for(uint8_t i = 2; i < 20; i++) target_arr[i - 2] = inputBuffer[i]; } // If time set command is detected else if(cmdByte == 0x10){ // Transfer to RTC Wire.beginTransmission(0x68); Wire.write(byte(0)); Wire.write(decToBcd(inputBuffer[2])); Wire.write(decToBcd(inputBuffer[3])); Wire.write(decToBcd(inputBuffer[4])); Wire.write(0x06); Wire.write(decToBcd(inputBuffer[5])); Wire.write(decToBcd(inputBuffer[6])); Wire.write(decToBcd(inputBuffer[7])); Wire.write(byte(0)); Wire.endTransmission(); // A make sure flag if(inputBuffer[8] == 0x23){ // Say that time and date is synced now. char msg[6] = {'T', '-', 'D', ' ', ' ', ' '}; char msg2[6] = {'S', 'Y', 'N', 'C', 'E', 'D'}; displayWrite(3, 0x00, 750, msg); displayWrite(3, 0x00, 750, msg2); } // Answer with a beginning of a message. If it's all good, the PC controller will complete the message :p uint8_t transferBuffer[10] = {0x23, 0x10, 'T', 'i', 'm', 'e', ' ', 'S', 'y', 0x24}; Serial.write(transferBuffer, 10); } // If message display is detected else if(cmdByte == 0x1F){ // Get message delay time. It's the incoming value in seconds uint16_t msgDelay = 1000; if(inputBuffer[20] < 10) msgDelay *= (uint16_t)inputBuffer[20]; char msg[6] = {' ', ' ', ' ', ' ', ' ', ' '}; // Write first message uint8_t offset = 2; for(uint8_t i = offset; i < (offset + 6); i++) msg[i - offset] = (char)inputBuffer[i]; displayWrite(3, 0x00, msgDelay, msg); // If more is available, do more! // Input buffer idx 21 is the long flag 0 (12 characters), idx 22 is the long flag 1 (18 characters) if(inputBuffer[21] == 1){ offset += 6; for(uint8_t i = offset; i < (offset + 6); i++) msg[i - offset] = (char)inputBuffer[i]; displayWrite(3, 0x00, msgDelay, msg); // If even more is available, do more! if(inputBuffer[22] == 1){ offset += 6; for(uint8_t i = offset; i < (offset + 6); i++) msg[i - offset] = (char)inputBuffer[i]; displayWrite(3, 0x00, msgDelay, msg); } } } // If LED preset mode is detected else if(cmdByte == 0x20){ // Get input LED mode uint8_t cmdMode = inputBuffer[2]; // If static color preset change is detected if(cmdMode == 0x01){ led = 0; // Set LED mode to 0 LED0P = inputBuffer[3]; // Set color to param 0 (inputBuffer[3]) // Communicate char LED0PMC[6]; LED0PMC[0] = 'C'; LED0PMC[1] = ' '; for(uint8_t i = 2; i < NUM_RGB; i++) LED0PMC[i] = LED0PM[inputBuffer[3]][i - 2]; displayWrite(3, 0x00, 500, LED0PMC); } // If regular fade preset is detected else if(cmdMode == 0x02){ led = 6; char k[6] = {'C', ' ', 'F', 'A', 'D', 'E'}; displayWrite(3, 0x00, 1000, k); } // If cross fade is detected else if(cmdMode == 0x03){ LED7_delta = inputBuffer[3]; // Apply param 0 (inputBuffer[3]) to LED 7 delta value if(led == 7){ // If it is already in CF mode, just display the message char k[6] = {'D', 'E', 'L', ' ', ' ', ' '}; // Get the two digits of the delta k[4] = inputBuffer[3] / 10; k[5] = inputBuffer[3] % 10; displayWrite(3, 0x00, 1000, k); } else{ // Otherwise led = 7; // Switch to cross fade and message char k[6] = {'C', ' ', 'C', 'R', 'F', 'D'}; displayWrite(3, 0x00, 1000, k); } } // If chase fade is detected else if(cmdMode == 0x04){ LED8_dp = inputBuffer[3]; // Apply param 0 (inputBuffer[3]) to LED 8 direction state // And do all the stuff as if it is a regular button triggered change if(inputBuffer[3] == 0) LED8_dr = false; else if(inputBuffer[3] == 1) LED8_dr = true; else if(inputBuffer[3] == 2) LED8_dr = !INTF0_dr; if(led == 8){ // If it is already in CH mode, just display message char LED8PMC[6]; for(uint8_t i = 0; i < 2; i++) LED8PMC[i] = ' '; for(uint8_t i = 2; i < NUM_RGB; i++) LED8PMC[i] = LED8PM[inputBuffer[3]][i - 2]; displayWrite(3, 0x00, 1000, LED8PMC); } else{ // Otherwise led = 8; // Switch to chase fade (LED 8) char k[6] = {'C', ' ', 'C', 'H', 'F', 'D'}; displayWrite(3, 0x00, 1000, k); } } // If resistor color mode is detected else if(cmdMode == 0x05){ led = 10; // To resistor mode (LED 10) char k[6] = {'C', 'R', 'C', 'O', 'D', 'E'}; displayWrite(3, 0x00, 1000, k); } // If microphone mode is detected else if(cmdMode == 0x06){ LED20_sMin = inputBuffer[3]; // Apply param 0 (inputBuffer[3]) to LED 20 threshold value if(led == 20){ // If it is already in mic mode, just display message char k[6] = {'S', 'E', 'N', ' ', ' ', ' '}; k[4] = inputBuffer[3] / 10; k[5] = inputBuffer[3] % 10; displayWrite(3, 0x00, 1000, k); } else{ // Otherwise led = 20; // Switch to microphone mode (LED 20) char k[6] = {'C', 'S', 'O', 'U', 'N', 'D'}; displayWrite(3, 0x00, 1000, k); } } // If police lights mode is detected else if(cmdMode == 0x07){ led = 11; // Switch to police light mode! char k[6] = {'C', ' ', ' ', 'C', 'O', 'P'}; displayWrite(3, 0x00, 1000, k); } } // If FW version request else if(cmdByte == 0x22){ uint8_t transferBuffer[10]; for(uint8_t i = 0; i < 10; i++) transferBuffer[i] = 0; transferBuffer[0] = 0x23; // Start byte transferBuffer[1] = 0x22; // FW output byte for(uint8_t i = 2; i < 9; i++) transferBuffer[i] = (uint8_t)fwString[i - 2]; transferBuffer[9] = 0x24; // Stop byte Serial.write(transferBuffer, 10); } // Configuration save request else if(cmdByte == 0x33){ // Call save config procedure saveConfig(); } // Configuration reset request else if(cmdByte == 0x34){ // Call save config procedure firstConfig(); } // Some random return otherwise else{ char k[6] = {' ', ' ', ' ', ' ', ' ', ' '}; for(uint8_t i = 1; i < 7; i++) k[i - 1] = (char)inputBuffer[i]; displayWrite(3, 0x00, 1000, k); for(uint8_t i = 0; i < 6; i++) Serial.print(k[i]); } } free(inputBuffer); // Discard the rest uint8_t flushBuffer[Serial.available()]; Serial.readBytes(flushBuffer, Serial.available()); Serial.flush(); } } // Reset config, load initial values void firstConfig(){ interface = 0; // Interface default: 0 led = 0; // LED default: static (0) INTF0_DM = 0; // Dot mode default: Blink isFahrenheit = 0; // Celsius LED0P = 0; // Default: off LED7_delta = 42; // Default xFade delta LED8_dp = 0; // Default: right to left LED11_pt = 0; // Default: standard cop LED20_sMin = 10; // Default: 10 char k[6] = {'D', 'E', 'F', 'A', 'U', 'L'}; char k2[6] = {'S', 'E', 'T', 'I', 'N', 'G'}; char k3[6] = {'R', 'E', 'T', 'O', 'R', 'D'}; displayWrite(3, 0x00, 750, k); displayWrite(3, 0x00, 750, k2); displayWrite(3, 0x00, 750, k3); } // Global variables load procedure void loadConfig(){ // Address "pointer" int addr = 0; // Global savings // Interface read interface = EEPROM.read(addr); addr++; // LED save led = EEPROM.read(addr); addr++; // Call to save all settings // Interface 0: Read dot mode INTF0_DM = EEPROM.read(addr); addr++; // Interface 1: Nothin to read // Interface 2: Read fahrenheit flag isFahrenheit = EEPROM.read(addr); addr++; // Interface end // LED 0 static presets: Read color configuration LED0P = EEPROM.read(addr); addr++; // LED 2 serial command colors: Read array configuration if serial LED mode is enabled if(led == 2){ for(uint8_t i = 0; i < NUM_BYTES; i++) rgb_arr[i] = EEPROM.read(addr + i); render(); } addr += NUM_BYTES; // LED 3 smooth write colors: Read array configuration if monitor mode is enabled if(led == 3){ for(uint8_t i = 0; i < NUM_BYTES; i++) target_arr[i] = EEPROM.read(addr + i); ledDirectWrite(target_arr); } addr += NUM_BYTES; // LED 6 spectrum fade: Nothing to read // LED 7 cross spectrum fade: Read delta LED7_delta = EEPROM.read(addr); if(LED7_delta == 0) LED7_delta = 42; addr++; // LED 8 chase fade: Read chase fade direction LED8_dp = EEPROM.read(addr); addr++; // LED 10 resistor: Nothing to read // LED 11 cop mode: Read pattern LED11_pt = EEPROM.read(addr); addr++; // LED 20 dancing mode: Read threshold LED20_sMin = EEPROM.read(addr); if(LED20_sMin == 0) LED20_sMin = 10; } // Global variables save procedure void saveConfig(){ // Address "pointer" int addr = 0; // Global savings // Interface save EEPROM.write(addr, interface); addr++; // LED save EEPROM.write(addr, led); addr++; // Call to save all settings // Interface 0: Save dot mode EEPROM.write(addr, INTF0_DM); addr++; // Interface 1: Nothin to save // Interface 2: Save fahrenheit flag EEPROM.write(addr, isFahrenheit); addr++; // Interface end // LED 0 static presets: Save color configuration EEPROM.write(addr, LED0P); addr++; // LED 2 serial command colors: Save array configuration if serial LED mode is enabled if(led == 2) for(uint8_t i = 0; i < NUM_BYTES; i++) EEPROM.write(addr + i, rgb_arr[i]); addr += NUM_BYTES; // LED 3 serial command colors: Save array configuration if serial LED smooth mode is enabled if(led == 3) for(uint8_t i = 0; i < NUM_BYTES; i++) EEPROM.write(addr + i, target_arr[i]); addr += NUM_BYTES; // LED 6 spectrum fade: Nothing to save // LED 7 cross spectrum fade: Save delta EEPROM.write(addr, LED7_delta); addr++; // LED 8 chase fade: Save chase fade direction EEPROM.write(addr, LED8_dp); addr++; // LED 10 resistor: Nothing to save EEPROM.write(addr, LED11_pt); addr++; // LED 20 dancing mode: Save threshold EEPROM.write(addr, LED20_sMin); char k[6] = {'A', 'L', 'L', ' ', ' ', ' '}; char k2[6] = {'S', 'E', 'T', 'I', 'N', 'G'}; char k3[6] = {'S', 'A', 'V', 'E', 'D', ' '}; displayWrite(3, 0x00, 750, k); displayWrite(3, 0x00, 750, k2); displayWrite(3, 0x00, 750, k3); } // This function reads the microphone input and returns a value between 0 and 255 // Threshold sets the minimum value the mic is sensitive to. Must not be larger than 49 (not checked in the function, results division by zero otherwise) uint8_t getMicData(uint16_t threshold){ uint32_t dMicRead; // Obtain amplitude uint16_t dMicMax = 0; uint16_t dMicMin = 1023; for(uint8_t i = 0; i < 196; i++){ dMicRead = analogRead(MIC_PIN); // Get minimum and maximum if(dMicRead > dMicMax) dMicMax = dMicRead; else if(dMicRead < dMicMin) dMicMin = dMicRead; } // Amplitude calculation uint32_t dMicA = dMicMax - dMicMin; // Range clipping if(dMicA > 50) dMicA = 50; double micA = (double)dMicA; // Do a logarithmic input scale uint8_t u = (uint8_t)(round((255.0 * log10(micA - (double)threshold + 1.0)) / log10(51.0 - (double)threshold))); return u; } // Fill LED array left half with one and the right half with other color void copHalfRender(uint8_t right, uint8_t left){ for(uint8_t i = 0; i < (NUM_BYTES >> 1); i+= 3) for(uint8_t j = 0; j < 3; j++) rgb_arr[i + j] = LED11_colors[right][j]; for(uint8_t i = (NUM_BYTES >> 1); i < NUM_BYTES; i+= 3) for(uint8_t j = 0; j < 3; j++) rgb_arr[i + j] = LED11_colors[left][j]; render(); } // Perfect sine waves with 85 deg. phase shift // Visualize it here! https://www.desmos.com/calculator/xpaf8pequz uint32_t ledPhase(uint8_t phase){ uint32_t val = 0; // This is the only mathematically sophisticated value we need to know. float cosRes = 127.5 * cos(PI85 * (float)phase); // For different intervals, OR the result with the function value. if(phase < 85) val |= ((((uint32_t)(127.5 - cosRes)) << 16) | (((uint32_t)(127.5 + cosRes)) << 8)); else if(phase < 170) val |= ((((uint32_t)(127.5 - cosRes)) << 16) | ((uint32_t)(127.5 + cosRes))); else val |= ((((uint32_t)(127.5 - cosRes)) << 8) | ((uint32_t)(127.5 + cosRes))); return val; } // Smooth transistion LED render void ledSmoothWrite(){ // Obtain equality for(uint8_t i = 0; i < NUM_BYTES; i++){ if(rgb_arr[i] < target_arr[i]) rgb_arr[i]++; else if(rgb_arr[i] > target_arr[i]) rgb_arr[i]--; } render(); } // Direct LED render void ledDirectWrite(uint8_t ledTarget[]){ memcpy(rgb_arr, ledTarget, NUM_BYTES); render(); } // Check button for activity. If active, set return SHORTPRESS or LONGPRESS uint8_t checkOption(int buttonPin){ // Button check function int num = getNum(buttonPin); uint8_t rV = 0; // State return variable if(digitalRead(buttonPin) == HIGH) { if(p[num] == false){ // If button not pressed before p[num] = true; // Set pressed flag p_t[num] = millis(); // Set timer as millis } if ((millis() - p_t[num] > lp_t) && (lp[num] == false)) { lp[num] = true; // Long press detected rV = LONGPRESS; // Set alternative number } }else{ // If digitalRead returns false if(p[num] == true){ // If pressed flag set if(lp[num] == true){ // If long press flag set lp[num] = false; // Reset long press flag }else{ rV = SHORTPRESS; } p[num] = false; } } return rV; } // Clear check routine variables when entering a new interface. // Always use this function to safely switch interfaces void switchInterface(uint8_t input){ clearInterface(); interface = input; } // Safely clear button states on transition void clearInterface(){ cTEN = 0; cCHY = 0; cVMM = 0; cMSD = 0; } int getNum(int num){ if(num == B_TEN_PIN) return 0; if(num == B_CHY_PIN) return 1; if(num == B_VMM_PIN) return 2; if(num == B_MSD_PIN) return 3; return -1; } // Wire, RTC Initializer, RTC Active Status Checker void wrInit(){ Wire.begin(); rtc.begin(); Wire.beginTransmission(0x68); Wire.write(0x07); Wire.write(0x10); Wire.endTransmission(); if(! rtc.isrunning()) rtc.adjust(DateTime(__DATE__, __TIME__)); } // Fancy welcome message slide in function. Wasted waaay to much time on this :p void welcome(char* message){ uint8_t spaces = 0; // Empty spaces for(int i = 0; i < 6; i++) if(message[i] == ' ') spaces++; // Count all spaces int delayMatrix[][6] = {{30, 15, 15, 15, 15, 300}, {30, 15, 15, 15, 300, 0}, {30, 15, 15, 300, 0, 0}, {30, 15, 300, 0, 0, 0}, {30, 300, 0, 0, 0, 0}, {300, 0, 0, 0, 0, 0}}; for(int k = 0; k < (6 - spaces); k++){ // k-th letter of message for(int i = 0; i < (6 - k); i++){ // Let the letter slide in from the right to the next available position char dPattern[6]; // Define empty pattern for(int j = 0; j < 6; j++){ if(j >= k) dPattern[j] = ' '; // All j's larger than current k will be filled with empty spaces else dPattern[j] = message[j]; // If k has increased, fill letters already slided in in advance } dPattern[5 - i] = message[k]; // Manipulate i-th filled empty pattern element with k-th letter of message displayWrite(3, 0x00, delayMatrix[k][i], dPattern); // Render the message with delay information } } char empty[] = {' ', ' ', ' ', ' ', ' ', ' '}; displayWrite(3, 0x00, 400, empty); displayWrite(3, 0x00, 1000, message); } // Temperature mean scaling. Takes the global added up sensor read value, takes the mean, returns either °C or °F in a displayable value uint32_t t_avg(){ tsmCounter = 0; float nts = (float)tsmValues * 0.12890625; // Mean value with 5V digital input scaling tsmValues = 0; float kts = (float)ts; if(abs(kts - nts) > 20) kts = nts; // Low Pass Threshold if(abs(ts - nts) > 0) if(isFahrenheit) kts = (1.8 * kts) + 3200.0; // Fahrenheit conversion return (uint32_t)kts; } // Render message to the tubes. See inside the function for a detailed how to use void displayWrite(uint8_t renderOption, uint8_t ODDR, int delayOption, char* message){ // uint8_t renderOption // 0: Time, 1: Date, 2: Temperature, 3: Message // uint8_t ODDR = 0; // Output Dot Overlay Register: // [ reserved | reserved | dot5. | dot4. | dot3. | dot2. | dot1. | dot0. ] // 7 0 // int delayOption // Message delay using delay function (freezing everything else) in ms. uint8_t codedOutput[6]; // Output Coded Pointer: {Sec, SecD, Min, MinD, Hr, HrD} if(renderOption == 0){ // If getDisplayData is requested to retrieve time information DateTime now = rtc.now(); codedOutput[0] = charConvert((now.second() % 10)); codedOutput[1] = charConvert((now.second() / 10)); codedOutput[2] = charConvert((now.minute() % 10)); codedOutput[3] = charConvert((now.minute() / 10)); codedOutput[4] = charConvert((now.hour() % 10)); codedOutput[5] = charConvert((now.hour() / 10)); } else if(renderOption == 1){ // If getDisplayData is requested to retrieve date information DateTime now = rtc.now(); codedOutput[0] = charConvert((now.year() % 10)); codedOutput[1] = charConvert((now.year() % 100) / 10); codedOutput[2] = charConvert((now.month() % 10)); codedOutput[3] = charConvert((now.month() / 10)); codedOutput[4] = charConvert((now.day() % 10)); codedOutput[5] = charConvert((now.day() / 10)); } else if(renderOption == 2){ // Output ts (Temperature sensor final value) codedOutput[0] = charConvert('C'); codedOutput[1] = charConvert('.'); codedOutput[2] = charConvert((char)((ts % 10))); codedOutput[3] = charConvert((char)((ts % 100) / 10)); codedOutput[4] = charConvert((char)(((ts % 1000) / 100))); codedOutput[5] = charConvert((char)(ts / 1000)); } else if(renderOption == 3){ for(int i = 0; i < 6; i++) codedOutput[i] = charConvert(message[5 - i]); } else if(renderOption == 4){ // Farenheit render codedOutput[0] = charConvert('F'); codedOutput[1] = charConvert('.'); codedOutput[2] = charConvert((char)((ts % 10))); codedOutput[3] = charConvert((char)((ts % 100) / 10)); codedOutput[4] = charConvert((char)(((ts % 1000) / 100))); codedOutput[5] = charConvert((char)(ts / 1000)); } // Check if ODDR bit is set for the i-th position of currentOutputCoded. // If yes, OR the dot position bit with 1 for(int i = 0; i < 6; i++) if(ODDR & (1 << i)) codedOutput[i] |= (1 << 0); // Undelayed VFD Output Render digitalWriteFast(LATCH_PIN, LOW); for(int i = 0; i < 6; i++) shiftOut(DATA_PIN, CLOCK_PIN, LSBFIRST, codedOutput[i]); digitalWriteFast(LATCH_PIN, HIGH); // Optional Display Delay Parameter if(delayOption != 0) delay(delayOption); } // Takes a regular char input and returns the corresponding 7 segment uint8_t. Byte mapping: 0b |a|b|c|d|e|f|g|.| uint8_t charConvert(char input){ // Takes char value (0 to 255) and converts to VFD clock display pattern uint8_t output = 0; // I/O Logic switch(input){ // Decimal numbers case 0: output = 0b11111100; break; case 1: output = 0b01100000; break; case 2: output = 0b11011010; break; case 3: output = 0b11110010; break; case 4: output = 0b01100110; break; case 5: output = 0b10110110; break; case 6: output = 0b10111110; break; case 7: output = 0b11100000; break; case 8: output = 0b11111110; break; case 9: output = 0b11110110; break; // Letters case 'A': output = 0b11101110; break; case 'B': output = 0b00111110; break; case 'C': output = 0b10011100; break; case 'D': output = 0b01111010; break; case 'E': output = 0b10011110; break; case 'F': output = 0b10001110; break; case 'G': output = 0b11110110; break; case 'H': output = 0b01101110; break; case 'I': output = 0b00001100; break; case 'J': output = 0b01110000; break; case 'L': output = 0b00011100; break; case 'N': output = 0b00101010; break; case 'O': output = 0b11111100; break; case 'P': output = 0b11001110; break; case 'Q': output = 0b11100110; break; case 'R': output = 0b00001010; break; case 'S': output = 0b10110110; break; case 'T': output = 0b00011110; break; case 'U': output = 0b00111000; break; case 'V': output = 0b01111100; break; case 'Y': output = 0b01110110; break; // Special characters case ' ': // Empty Output output = 0b00000000; break; case '.': // Temperature Dot output = 0b11000110; break; case '-': output = 0b00000010; break; case '0': output = 0b11111100; break; } return output; } uint8_t decToBcd(uint8_t input) { return ((input / 10 * 16) + (input % 10)); } // This section is written by: // Acrobotic - 01/10/2013 // Author: x1sc0 /*License: Beerware License; if you find the code useful, and we happen to cross paths, you're encouraged to buy us a beer. The code is distributed hoping that you in fact find it useful, but without warranty of any kind.*/ void render(void){ if(!rgb_arr) return; while((micros() - t_f) < 50L); // wait for 50us (data latch) cli(); // Disable interrupts so that timing is as precise as possible volatile uint8_t *p = rgb_arr, // Copy the start address of our data array val = *p++, // Get the current byte value & point to next byte high = PORT | _BV(PORT_PIN), // Bitmask for sending HIGH to pin low = PORT & ~_BV(PORT_PIN), // Bitmask for sending LOW to pin tmp = low, // Swap variable to adjust duty cycle nbits= NUM_BITS; // Bit counter for inner loop volatile uint16_t nbytes = NUM_BYTES; // Byte counter for outer loop asm volatile( // Instruction CLK Description Phase "nextbit:\n\t" // - label (T = 0) "sbi %0, %1\n\t" // 2 signal HIGH (T = 2) "sbrc %4, 7\n\t" // 1-2 if MSB set (T = ?) "mov %6, %3\n\t" // 0-1 tmp'll set signal high (T = 4) "dec %5\n\t" // 1 decrease bitcount (T = 5) "nop\n\t" // 1 nop (idle 1 clock cycle) (T = 6) "st %a2, %6\n\t" // 2 set PORT to tmp (T = 8) "mov %6, %7\n\t" // 1 reset tmp to low (default) (T = 9) "breq nextbyte\n\t" // 1-2 if bitcount ==0 -> nextbyte (T = ?) "rol %4\n\t" // 1 shift MSB leftwards (T = 11) "rjmp .+0\n\t" // 2 nop nop (T = 13) "cbi %0, %1\n\t" // 2 signal LOW (T = 15) "rjmp .+0\n\t" // 2 nop nop (T = 17) "nop\n\t" // 1 nop (T = 18) "rjmp nextbit\n\t" // 2 bitcount !=0 -> nextbit (T = 20) "nextbyte:\n\t" // - label - "ldi %5, 8\n\t" // 1 reset bitcount (T = 11) "ld %4, %a8+\n\t" // 2 val = *p++ (T = 13) "cbi %0, %1\n\t" // 2 signal LOW (T = 15) "rjmp .+0\n\t" // 2 nop nop (T = 17) "nop\n\t" // 1 nop (T = 18) "dec %9\n\t" // 1 decrease bytecount (T = 19) "brne nextbit\n\t" // 2 if bytecount !=0 -> nextbit (T = 20) :: // Input operands Operand Id (w/ constraint) "I" (_SFR_IO_ADDR(PORT)), // %0 "I" (PORT_PIN), // %1 "e" (&PORT), // %a2 "r" (high), // %3 "r" (val), // %4 "r" (nbits), // %5 "r" (tmp), // %6 "r" (low), // %7 "e" (p), // %a8 "w" (nbytes) // %9 ); sei(); // Enable interrupts t_f = micros(); // t_f will be used to measure the 50us // latching period in the next call of the // function. }