Initial version of the software
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ollo
commit
145ca239a2
248
SideboardLED.ino
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248
SideboardLED.ino
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/*
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Fuses:
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avrdude -c avrispmkii -p atmega8 -U lfuse:w:0xee:m -U hfuse:w:0xd9:m -U efuse:w:0xfc:m
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Arduino Settings:
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Board: Arduino NG / or older
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Processor: Atmega8
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*/
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#include <FastLED.h>
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/****************** LED output ***********************/
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#define LED_PIN 3
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// Information about the LED strip itself
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#define NUM_LEDS 45 /* aka 75cm at 60LEDs per 100cm */
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#define CHIPSET WS2812
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#define COLOR_ORDER GRB
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CRGB leds[NUM_LEDS];
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CRGBSet ledset(leds, NUM_LEDS);
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#define BRIGHTNESS 128 /** Average brightness, that shall not exeeded */
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#define FADEBLACK -2
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/****************** Command line ***********************/
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int CMD_MAX = 128;
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char myCmd[128];
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void setup() {
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// start serial port at 9600 bps:
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Serial.begin(9600);
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Serial.println("Sideboard LED running...");
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// It's important to set the color correction for your LED strip here,
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// so that colors can be more accurately rendered through the 'temperature' profiles
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FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS);
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//TODO: Can this line be removed?
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//FastLED.setBrightness( BRIGHTNESS );
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// Turn the LED on, then pause
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leds[0] = CRGB::Red;
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FastLED.show();
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delay(500);
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// Now turn the LED off, then pause
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leds[0] = CRGB::Black;
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FastLED.show();
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delay(500);
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}
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void clearCmdArray(){
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//clear the cmd array
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for (int i = 0; i < CMD_MAX; i++){
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myCmd[i] = '\0';
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}
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}
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//returns number of read bytes
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int readFromSerialIntoCmdArray(){
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//read from the serial buffer and flush
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int inputSize = Serial.available();
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//give serial a chance to receive all bytes
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if(inputSize > 0){
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delay(100);
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inputSize = Serial.available();
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}
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if(inputSize > 0 && inputSize < CMD_MAX){
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Serial.print("inputSize: ");
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Serial.println(inputSize);
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for (int i = 0; i < inputSize; i++){
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myCmd[i] = Serial.read();
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}
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}else if(inputSize >= CMD_MAX){
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Serial.flush();
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Serial.println("too much data, flush");
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}
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return inputSize;
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}
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//check if command has the required prefix
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int checkCmdArrayForPrefix(){
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if (myCmd[0] == 'o'
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&& myCmd[1] == 'l'
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&& myCmd[2] == 'l'
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&& myCmd[3] == 'p'
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&& myCmd[4] == 'e'){
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return 1;
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}
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return 0;
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}
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void sendAckOverSerial(){
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Serial.println(F("ACK"));
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}
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void sendNackOverSerial(){
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Serial.println(F("NACK"));
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}
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void sendPingAckOverSerial(){
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Serial.println(F("PACK"));
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}
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void loop() {
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/* spcial rainbow mode */
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static long rainbowIndex = -1;
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static CRGB color;
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if (rainbowIndex < 0) {
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//delay needed to have a chance to get the whole message
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delay(200);
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clearCmdArray();
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if (rainbowIndex == FADEBLACK) {
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ledset.fadeToBlackBy(40);
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}
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FastLED.show();
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} else {
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if (rainbowIndex >= 256) {
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/* one byte used -> simulate overflow */
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rainbowIndex=0;
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}
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ledset.fill_rainbow(rainbowIndex++);
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FastLED.delay(30);
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}
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int inputSize = readFromSerialIntoCmdArray();
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if (inputSize > 0)
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{
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rainbowIndex=-1; /* command -> deactivate rainbow */
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int checkCmd = checkCmdArrayForPrefix();
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if(checkCmd == 0){
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Serial.println(F("if you dont know what to do type \"ollpehelp\""));
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sendNackOverSerial();
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return;
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} else if(myCmd[5] == 'p'
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&& myCmd[6] == 'i'
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&& myCmd[7] == 'n'
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&& myCmd[8] == 'g')
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{
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sendPingAckOverSerial();
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}
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else if(myCmd[5] == 'h'
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&& myCmd[6] == 'e'
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&& myCmd[7] == 'l'
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&& myCmd[8] == 'p')
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{
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sendHelpOverSerial();
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}
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else if(myCmd[5] == 'a')
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{
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parseColor(myCmd+6, &color);
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Serial.print("RGB:");
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Serial.print(color.r);
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Serial.print(";");
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Serial.print(color.g);
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Serial.print(";");
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Serial.println(color.b);
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ledset.fill_solid(color);
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sendAckOverSerial();
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}
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else if(myCmd[5] == 'c')
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{
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rainbowIndex = FADEBLACK;
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sendAckOverSerial();
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}
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else if(myCmd[5] == 'm')
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{
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rainbowIndex=0; /* activate rainbow */
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Serial.println(F("Rainbow started"));
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sendAckOverSerial();
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}
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else if(myCmd[5] == 'w')
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{
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int index = (myCmd[6]-'0') * 10 + (myCmd[7]-'0');
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if (index > NUM_LEDS) {
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Serial.println(F("Index too large"));
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sendNackOverSerial();
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} else {
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parseColor(myCmd+8, &color);
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leds[index] = color;
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sendAckOverSerial();
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}
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}
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else if(myCmd[5] == 'r')
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{
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int index = (myCmd[6]-'0') * 10 + (myCmd[7]-'0');
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if (index > NUM_LEDS) {
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Serial.println(F("Index too large"));
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sendNackOverSerial();
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} else {
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Serial.println(leds[index]);
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}
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}
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}
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}
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/**
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* Extract the color from the given LED command
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*/
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void parseColor(char* pCmd, CRGB *pColor) {
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unsigned int colorParts[3]; /* 0: red, 1: green, 2: blue */
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unsigned long colorSum = 0;
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for(int i=0; i < (2*3); i+= 2) {
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Serial.print(pCmd[i]);Serial.print(" and "); Serial.println(pCmd[i+1]);
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colorParts[i/2] = (pCmd[i] <= '9') ? ((pCmd[i]-'0') << 4) : (((pCmd[i]-'A')+10) << 4);
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if (colorParts[i/2] < 0) { Serial.print("calcErr:"); Serial.println(colorParts[i/2]); }
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colorParts[i/2] += (pCmd[i+1] <= '9') ? ((pCmd[i+1]-'0')) : (((pCmd[i+1]-'A')+10));
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}
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pColor->r = colorParts[0]; /* fill red */
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pColor->g = colorParts[1]; /* fill green */
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pColor->b = colorParts[2]; /* fill blue */
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colorSum = pColor->r;
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colorSum += pColor->g;
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colorSum += pColor->b;
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/* Generate the average brightness */
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colorSum = (colorSum / 3);
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Serial.print("sum:");
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Serial.println(colorSum);
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if (colorSum > BRIGHTNESS) {
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/* scale the brightness, if the values are too high */
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pColor->r = pColor->r * BRIGHTNESS / colorSum;
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pColor->g = pColor->g * BRIGHTNESS / colorSum;
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pColor->b = pColor->b * BRIGHTNESS / colorSum;
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}
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}
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/*
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* Give the user some helpfull advice.
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* (Text is stored in the flash to save RAM of the Arduino)
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*/
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void sendHelpOverSerial()
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{
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Serial.println(F("----help is coming----"));
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Serial.println(F("all commands must be prefixed with \"ollpe\""));
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Serial.println(F("----commands----"));
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Serial.println(F("axxxxxx\t set all leds to RRGGBB (hex: 0-9A-F)"));
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Serial.println(F("w00xxxxxx\t set led 0 (first) to RRGGBB (hex: 0-9A-F)"));
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Serial.println(F("r00\t returns state of led 0 (first)"));
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Serial.println(F("c\t clear all leds (000000h)"));
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Serial.println(F("m\t magic rainbow for all leds until next command is received"));
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Serial.println(F("ping\t returns \"PACK\""));
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Serial.println(F("help\t prints this help"));
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Serial.println(F("----help end----"));
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}
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