TSOP38238 IR Receiver Module KY-022 – 38kHz Infrared Remote Control Sensor for Arduino/Raspberry Pi (3.3V-5V)

Key Features

✅ Universal Compatibility – Works with 99% of infrared remotes (TVs, DVDs, ACs, LED strips)
✅ 38kHz Carrier Frequency – Industry-standard for consumer electronics
✅ Noise-Resistant – Built-in TSOP38238 sensor filters out interference
✅ Plug & Play – 3-pin interface (VCC, GND, OUT) for Arduino/Raspberry Pi/ESP8266/ESP32
✅ Compact Design – Breadboard-friendly (18.5mm x 15mm)

Technical Specifications

• Operating Voltage: 2.5V–5.5V (3.3V/5V compatible)

• Output Signal: Active LOW (decodes to HIGH when signal detected)

• Range: Up to 45 feet (depends on remote strength)

• Angle of Reception: ±35°

• Package Includes:

  • 1× KY-022 IR Receiver Module

  • 1× 3-pin header (pre-soldered)

Applications

📺 Smart Home – Control appliances with old remotes
🤖 Robotics – Add remote control to Arduino robots
🎛️ DIY Automation – Replace physical buttons with IR
🔌 Education – Learn IR signal decoding (NEC, RC5 protocols)

How It Works

1. Point any 38kHz remote (TV, LED controller, etc.) at the sensor.

2. The module outputs LOW when receiving a valid signal.

3. Use libraries like IRremote.h (Arduino) to decode button presses.

Why Choose This Module?

✔ Tested Reliability – Works with Sony, NEC, Samsung, LG remotes
✔ Low Power – Consumes <0.5mA in standby
✔ Beginner-Friendly – Example code included in product guides

Compatibility

• Microcontrollers: Arduino Uno, ESP32, Raspberry Pi Pico, STM32

• IDEs: Arduino IDE, PlatformIO, MicroPython

Note: For long-range projects, pair with an IR LED transmitter (like KY-005).