KY-022 HX1838B IR Receiver Module 38kHz
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Prices updated: 13 Oct 2026
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About this product
KY-022 is an infrared receiver module built around the HX1838B 38kHz IR receiver, with a 1kΩ resistor and an indicator LED. It is designed to work with the KY-005 IR transmitter and is used in remote-control projects with Arduino, Raspberry Pi and ESP8266 boards.
Specifications
- Operating voltage
- 2.7 to 5.5V
- Operating current
- 0.4 to 1.5mA
- Reception distance
- 18m
- Reception angle
- ±45°
- Carrier frequency
- 38kHz
- Low level voltage
- 0.4V
- High level voltage
- 4.5V
Frequently asked questions
How do I wire it?
The module has three pins: signal, VCC and GND. Connect VCC to 3.3V or 5V within the 2.7 to 5.5V range, GND to GND, and the signal pin to a digital input. Check the pin labels on the board before wiring.
Which remotes work with it?
It is designed for 38kHz carrier IR signals, the same carrier used by many common infrared remotes and the KY-005 transmitter.
