Infrared Remote Control Module

Infrared Remote Control Module

Keypads
SWK800
Part.No: HX1838
€4.00
In Stock
Immediate Dispatch
HX1838 Infrared Remote Control Receiver Module — 3.3V/5V compatible IR sensor with 38kHz carrier frequency reception, 10K pull-up on signal pin, and range up to 8 meters. Ideal for Arduino, ESP32, and Raspberry Pi projects.

 

The HX1838 Infrared Remote Control Module (MPN: HX1838) is a compact IR receiver board designed to decode remote control signals at 38kHz carrier frequency. Operating on 3.3V–5V, it connects directly to both 5V microcontrollers (Arduino) and 3.3V systems (ESP32, Raspberry Pi) without any level-shifting circuitry — making it one of the most versatile IR receiver modules for makers and engineers.

Key Features

  • Wide Supply Voltage (3.3V–5V): Works directly with both 5V MCUs and 3.3V chips → No extra components or level shifters needed
  • 38kHz IR Reception: Accepts coded data from virtually any standard IR remote control → Universal compatibility with common remote controls
  • Pre-wired 10K Pull-up Resistor on Signal Pin: The IN pin includes an onboard 10K pull-up → Clean, stable signal output without external resistors
  • Reception Range up to 8 meters: Theoretical range of 5–8 meters in open conditions → Suitable for room-scale remote control applications
  • Power Indicator LED: Onboard LED confirms module is powered → Quick visual verification during setup
  • HX1838 High-Sensitivity Sensor: Uses the proven HX1838 IR receiver IC → Reliable detection even in ambient light conditions

Pinout & Wiring

PINSymbolDescription
1VCCPower supply: connect to 3.3V or 5V
2GNDGround — connect to system GND
3INSignal output to microcontroller I/O pin (10K pull-up onboard)

Wiring note: Connect VCC to your board's 3.3V or 5V rail, GND to ground, and the IN pin directly to any digital I/O pin on your microcontroller. No additional pull-up resistor is required.

Compatibility

  • Arduino UNO / Nano / Mega (5V): Directly compatible — connect VCC to 5V pin
  • ESP32 / ESP8266 (3.3V): Directly compatible — connect VCC to 3.3V pin; signal level is safe for 3.3V GPIOs
  • Raspberry Pi (3.3V): Compatible — connect VCC to 3.3V and IN to any GPIO pin

Typical Applications

  • DIY home automation: Use a standard TV remote to control lights, fans, or relays via Arduino or ESP32
  • Robot remote control: Add wireless directional commands to your robot without Bluetooth or Wi-Fi
  • Media center / PC control: Pair with a Raspberry Pi to build a custom IR-controlled media player
  • Learning IR codes: Capture and decode signals from any 38kHz remote for use in custom projects
  • Interactive displays & kiosks: Add touchless navigation to maker exhibits or classroom demos

Technical Specifications

ParameterValue
InterfaceDigital (signal pin with 10K pull-up)
Supply Voltage (VCC)3.3V – 5V
Carrier Frequency38 kHz
Reception Range5 – 8 meters (open environment, theoretical)
Signal Pin Pull-up10K Ω (onboard)
IndicatorPower LED
Sensor ICHX1838
MPNHX1838

FAQ

Q: Can I use this module with any IR remote control?
A: Yes — the HX1838 sensor receives coded data from any remote control that transmits at 38kHz carrier frequency, which covers the vast majority of consumer IR remotes (TV, AC, DVD, etc.).

Q: Does reception range decrease through glass or walls?
A: Yes. The stated 5–8 meter range is theoretical in open air. Physical barriers such as glass panels, curtains, or other materials will reduce effective range.

Package Contents: 1 × HX1838 Infrared Remote Control Receiver Module

⚠ Note: The 5–8 meter reception range is a theoretical maximum measured in ideal open-air conditions. Actual range may vary depending on environmental factors, obstacles, and ambient infrared interference.
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