Key Features

✔ 38kHz IR Demodulation – Compatible with most TV/DVD/AC remotes. ✔ Wide Operating Voltage (2.7V–5.5V) – Works with 3.3V & 5V microcontrollers. ✔ Long Reception Range – Up to 10 meters (depending on transmitter strength). ✔ Low Power Consumption – <0.5mA standby current. ✔ Easy Integration – 3-pin interface (VCC, GND, OUT) for quick wiring. ✔ Strong Noise Immunity – Filters ambient IR interference (sunlight, lamps). ✔ Compact Design – Breadboard-friendly for prototyping.

Technical Specifications

• Operating Voltage: 2.7V–5.5V DC

• Carrier Frequency: 38kHz (±1kHz tolerance)

• Reception Angle: ±45° (optimal sensitivity)

• Output Signal: Digital (TTL) – Active LOW when IR detected

• Response Time: <10ms (signal decoding)

• Dimensions: 18mm × 12mm × 7mm

• Weight: ~2g

Applications

• Smart Home Control – Use remotes to command lights, fans, or appliances.

• Robotics – Wireless robot navigation via IR remote.

• DIY Automation – Replace physical buttons with remote triggers.

• TV/Media Control – Build custom IR repeaters or macros.

• Educational Projects – Learn IR communication protocols (NEC, RC5, etc.).

How It Works

1. Connect to MCU – Wire VCC, GND, and OUT to Arduino/RPi.

2. Point Remote – Aim an IR transmitter (38kHz modulated) at the sensor.

3. Decode Signals – Use libraries (IRremote.h) to interpret button presses.

4. Trigger Actions – Map codes to control relays, LEDs, or motors.

Package Includes

• 1 × HX1838 IR Receiver Module

• (Optional) Jumper wires for prototyping

Why Choose the HX1838?

✅ Plug-and-Play – No complex setup; works with common remotes. ✅ Energy Efficient – Minimal power drain for battery projects. ✅ Universal Compatibility – Supports NEC, Sony, Philips RC5/6 protocols. ✅ Cost-Effective – Cheaper than RF/WiFi for simple wireless control.