IR Transmitter Sensor

Project Overview

The IR Transmitter Sensor project demonstrates how to use an IR LED with an Arduino Mega to send infrared signals. This project sends a specific IR code at regular intervals and prints the sent code to the Serial Monitor for debugging purposes.

Components Needed

• Arduino Mega
• IR LED
• Resistor (220 ohms)
• Jumper Wires

Block Diagram

Circuit Setup

1. Connect the IR LED to Arduino Mega:
   • Anode (longer leg) of the IR LED to digital pin 3 (irLedPin) on Arduino Mega through a 220-ohm resistor.
   • Cathode (shorter leg) of the IR LED to GND on Arduino Mega.

Instructions

1. Circuit Setup:

   • Connect the IR LED to the Arduino Mega as described in the circuit setup section.

2. Library Installation:

   • Open the Arduino IDE.
   • Go to Sketch > Include Library > Manage Libraries.
   • Search for IRremote and install the library by shirriff.

3. Code Upload:

   • Open the Arduino IDE and create a new sketch.
   • Copy and paste the provided Arduino code into the sketch.

4. Testing:

   • Upload the code to the Arduino Mega.
   • Open the serial monitor in Arduino IDE (set to 9600 baud).
   • Observe the Serial Monitor for messages indicating the sent IR code.
   • The IR LED will blink briefly when the code is sent.

Applications

• Remote Control Systems: Use in projects requiring the transmission of remote control signals.
• Home Automation: Integrate into home automation systems to control devices using IR signals.
• Learning Projects: Great for learning how IR communication works and how to transmit IR signals in microcontroller projects.

Notes

• Replace the irCode variable in the sendIRSignal function with the actual IR code for your device. You can find these codes using an IR receiver and observing the codes from your remote.
• Adjust the delay in the loop function to control how often the IR signal is sent.
• Ensure the IR LED is positioned correctly to transmit signals effectively to the target device.

---

🌐 ProjectsLearner
📧 projectslearner@gmail.com
📸 Instagram
📘 Facebook
▶️ YouTube
📘 LinkedIn

Crafted for you with ❤️ from ProjectsLearner