Infrared Light Control

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Objective To control the color and brightness of RGB LEDs via an infrared remote controller. Principle To receive the infrared signal of the remote controller by using infrared receiving sensor and to control the LED luminous color and brightness by judging the different infrared encoding. Equipment Module Number Function mCookie-CoreUSB 1 Core board mCookie-Hub 1 Sensor pin board Microduino-IR Receiver 1 Infrared receiver Microduino-Color LED 1 Colored LED Other Equipment Infrared remote controller USB cable Two sensor cables 600px Preparation Setup 1：Connect the Colored LED to the D6 pin of the mCookie-Hub and the IR Receiver to the D10 pin of the Hub. 600px Setup 2：Stack all modules together and connect them to the computer with a USB cable. 600px Debugging Open Arduino IDE and copy the following codes into it. #include <IRremote.h> #include <Adafruit_NeoPixel.h> #define PIN 6 #define RECV_PIN 10 //Encoder defining for the key of the remote controller #define INCREASE 0XFF02FD //Increase"+" #define DECREASE 0xFF9867 //Decrease"-" #define NUM_0 0xFF6897 //Number 0 #define NUM_1 0xFF30CF // Number1 #define NUM_2 0xFF18E7 // Number 2 #define NUM_3 0xFF7A85 // Number 3 #define NUM_4 0xFF10EF / Number 4 #define NUM_5 0xFF38C7 // Number 5 #define NUM_6 0xFF5AA5 // Number 6 #define NUM_7 0xFF42BD // Number 7 #define NUM_8 0xFF4AB5 // Number 8 #define NUM_9 0xFF52AD // Number 9 Adafruit_NeoPixel strip = Adafruit_NeoPixel(6, PIN, NEO_GRB + NEO_KHZ800); IRrecv irrecv(RECV_PIN); decode_results results; #define val_max 255 #define val_min 0 int pos = 8, color = 100; uint32_t color_n[9] = { strip.Color(255, 0, 0), strip.Color(248, 141, 30), strip.Color(255, 255, 0), strip.Color(0, 255, 0), strip.Color(0, 127, 255), strip.Color(0, 0, 255), strip.Color(139, 0, 255), strip.Color(255, 255, 255), strip.Color(0, 0, 0) }; uint32_t color_m[9][3] = { {0, 255, 255}, {255, 0, 0}, {248, 141, 30}, {255, 255, 0}, {0, 255, 0}, {0, 127, 255}, {0, 0, 255}, {139, 0, 255}, {255, 255, 255} }; void setup() { // put your setup code here, to run once: strip.begin(); strip.show(); // Initialize all pixels to 'off' irrecv.enableIRIn(); // Start the receiver for (int i = 0; i < 9; i++) { colorSetall(color_n[i]); delay(300); } } void loop() { // put your main code here, to run repeatedly: if (irrecv.decode(&results)) { Serial.println(results.value, HEX); switch (results.value) { case INCREASE: color += 50; if (color > 250) color = 250; break; case DECREASE: color -= 50; if (color < 0) color = 0; break; case NUM_1: color = 100; pos = 0; break; case NUM_2: pos = 1; color = 100; break; case NUM_3: pos = 2; color = 100; break; case NUM_4: pos = 3; color = 100; break; case NUM_5: pos = 4; color = 100; break; case NUM_6: pos = 5; color = 100; break; case NUM_7: pos = 6; color = 100; break; case NUM_8: pos = 7; color = 100; break; case NUM_9: pos = 8; color = 100; break; default: break; } irrecv.resume(); // Receive the next value colorSetall(strip.Color(map(color, val_min, val_max, 0, color_m[pos][0]), map(color, val_min, val_max, 0, color_m[pos][1]), map(color, val_min, val_max, 0, color_m[pos][2]))); } } void colorSetall(uint32_t c) { for (uint16_t i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, c); } strip.show(); } Choose the right board and the COM port. Compile It'll remind you of the items to be saved while the compile. Upload Upload after the compile and it'll pop up a notice of "Uploading done" after finished. 600px Result Increase the brightness via "+" and decrease via "-" Number from 1 to 9 represents different color. Open the serial monitor and you'll see the received infrared signal. Software Debugging Define the pin of the LED and the IR Receiver. For other pins, users can make change. #define PIN 6 //LED control pin #define RECV_PIN 10 //IR Receiver pin Define the encoder of the remote controller. Here we adopt NEC encoding format. // Define the encoder of the remote controller. #define INCREASE 0xFFA857 ///Increase"+" #define DECREASE 0xFFE01F // Decrease"-" #define NUM_0 0xFF6897 // Number 0 #define NUM_1 0xFF30CF // Number 1 #define NUM_2 0xFF18E7 // Number 2 #define NUM_3 0xFF7A85 // Number 3 #define NUM_4 0xFF10EF // Number 4 #define NUM_5 0xFF38C7 // Number 5 #define NUM_6 0xFF5AA5 // Number 6 #define NUM_7 0xFF42BD // Number 7 #define NUM_8 0xFF4AB5 // Number 8 #define NUM_9 0xFF52AD // Number 9 The encoding format of the infrared remote controller adopts data hexadecimal representation. Receive infrared remote control signals and judge the status of the key to control the color and brightness of the LED. To control the brightness of the LED through its size and the color through the POS. Two bit arrays are used to implement the selection. By changing the color value of the color_m[9][3] two-dimensional array, you can change the color of each key. colorSetall(strip.Color(map(color, val_min, val_max, 0, color_m[pos][0]), map(color, val_min, val_max, 0, color_m[pos][1]), map(color, val_min, val_max, 0, color_m[pos][2]))); Result Press different keys on the infrared remote controller, you can change the color and brightness of the LED. Result