CODE | IR Remote Control - Arduino Project 049

RonWang1 years ago (2024-12-04)电子编程 COD50

Got it — you’re looking into using an infrared (IR) sensor with an IR remote on Arduino. Let’s break it down so it’s simple and practical.

🔹 How It Works

  • IR Remote sends pulses of infrared light (invisible to the eye) encoded with data.

  • IR Receiver Module (like VS1838B or TSOP38238) detects these pulses and sends them to Arduino as a digital signal.

  • Arduino decodes the signal into a unique code for each button press.

🔹 Basic Wiring
For a typical 3-pin IR receiver:

  • OUT → Arduino digital pin (e.g., D2)

  • VCC → 5V

  • GND → GND

Project 49 IR Remote Control


49 Basic IR Remote Control Circuit

49 Basic IR Remote Control Schematic

/* Project 49 IR Remote Control
 * Coding by Ronwang 
 * This example code is in the public domain
 * Hardware Support by Autaba Website :https://www.autabaec.com
 */
#include <DIYables_IRcontroller.h> // Added DIYables_IRcontroller library
#define IR_RECEIVER_PIN 8 // The Arduino pin connected to IR controller
DIYables_IRcontroller_17 irController(IR_RECEIVER_PIN, 200); // debounce time is 200ms
void setup() {
  Serial.begin(9600);
  irController.begin();
}
void loop() {
  Key17 key = irController.getKey();
  if (key != Key17::NONE) {
    switch (key) {
      case Key17::KEY_1:
        Serial.println("1");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_2:
        Serial.println("2");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_3:
        Serial.println("3");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_4:
        Serial.println("4");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_5:
        Serial.println("5");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_6:
        Serial.println("6");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_7:
        Serial.println("7");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_8:
        Serial.println("8");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_9:
        Serial.println("9");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_STAR:
        Serial.println("*");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_0:
        Serial.println("0");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_SHARP:
        Serial.println("#");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_UP:
        Serial.println("UP");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_DOWN:
        Serial.println("DOWN");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_LEFT:
        Serial.println("LEFT");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_RIGHT:
        Serial.println("RIGHT");
        // TODO: YOUR CONTROL
        break;
      case Key17::KEY_OK :
        Serial.println("OK");
        // TODO: YOUR CONTROL
        break;
      default:
        Serial.println("WARNING: undefined key:");
        break;
    }
  }
}
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