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Arduino Serial to LED communication <code java> /************************************************************************************************************************************ * ShiftPWM blocking RGB fades example, (c) Elco Jacobs, updated August 2012. * * ShiftPWM blocking RGB fades example. This example uses simple delay loops to create fades. * If you want to change the fading mode based on inputs (sensors, buttons, serial), use the non-blocking example as a starting point. * Please go to www.elcojacobs.com/shiftpwm for documentation, fuction reference and schematics. * If you want to use ShiftPWM with LED strips or high power LED's, visit the shop for boards. ************************************************************************************************************************************/ // Clock and data pins are pins from the hardware SPI, you cannot choose them yourself if you use the hardware SPI. // Data pin is MOSI (Uno and earlier: 11, Leonardo: ICSP 4, Mega: 51, Teensy 2.0: 2, Teensy 2.0++: 22) // Clock pin is SCK (Uno and earlier: 13, Leonardo: ICSP 3, Mega: 52, Teensy 2.0: 1, Teensy 2.0++: 21) // You can choose the latch pin yourself. const int ShiftPWM_latchPin=8; // If your LED's turn on if the pin is low, set this to true, otherwise set it to false. const bool ShiftPWM_invertOutputs = false; // You can enable the option below to shift the PWM phase of each shift register by 8 compared to the previous. // This will slightly increase the interrupt load, but will prevent all PWM signals from becoming high at the same time. // This will be a bit easier on your power supply, because the current peaks are distributed. const bool ShiftPWM_balanceLoad = false; #include <ShiftPWM.h> // include ShiftPWM.h after setting the pins! unsigned char maxBrightness = 128; unsigned char pwmFrequency = 75; int numRegisters = 3; int numRGBleds = 4; void setup(){ Serial.begin(9600); // Sets the number of 8-bit registers that are used. ShiftPWM.SetAmountOfRegisters(numRegisters); // SetPinGrouping allows flexibility in LED setup. // If your LED's are connected like this: RRRRGGGGBBBBRRRRGGGGBBBB, use SetPinGrouping(4). ShiftPWM.SetPinGrouping(1); //This is the default, but I added here to demonstrate how to use the function ShiftPWM.Start(pwmFrequency,maxBrightness); } void loop() { /*for(int led=0;led<numRGBleds;led++){ // loop over all LED's for(int intensity=0;intensity<255;intensity++){ // loop over all LED's ShiftPWM.SetRGBW(led, intensity, 0, 0, 0); delay(5); } for(int intensity=255;intensity>0;intensity--){ // loop over all LED's ShiftPWM.SetRGBW(led, intensity, 0, 0, 0); delay(5); } }*/ while (Serial.available() > 0) { int led = Serial.parseInt(); int red = Serial.parseInt(); int green = Serial.parseInt(); int blue = Serial.parseInt(); int white = Serial.parseInt(); ShiftPWM.SetRGBW(led, red, green, blue, white); } } </code>
