Microcontroller MP3 Car Infrared Wireless Remote Control Module Kit
= HX1838 Infrared Remote Control DIY Kit for Arduino & Raspberry Pi =
The Microcontroller MP3 Car Infrared Wireless Remote Control Module Kit is a complete DIY solution for adding wireless infrared control to your Arduino, Raspberry Pi, or microcontroller projects. This HX1838based kit includes an ultrathin 38kHz IR remote control and a highly sensitive IR receiver module, enabling you to control robots, MP3 players, lighting, and various interactive projects from up to 8 meters away.
Complete kit includes IR remote control, receiver module, IR LED, and jumper wires
Compatible with Arduino, ESP32, Raspberry Pi, and PIC microcontrollers
Remote requires CR2025 battery - included with most kits
= Technical Specifications =
| Parameter | Value |
|---|
| Receiver IC | HX1838 / VS1838B compatible |
| Carrier Frequency | 38kHz (±0.5kHz) |
| Supply Voltage | 2.7V - 5.5V DC |
| Operating Current | ~1.5mA (idle) |
| Receiver Angle | ±45° to 60° |
| Transmission Distance | Up to 8 meters |
| Remote Buttons | 17 function keys |
| Protocol | NEC encoding format |
| Remote Battery | 1 x CR2025 (3V button cell) |
| Battery Life | 20,000+ key presses |
| Quiescent Current | 3-5µA |
| Dynamic Current | 3-5mA |
| Receiver Dimensions | ~23.5mm x 21.5mm |
| Remote Dimensions | 85.7mm x 40mm x 6.5mm |
= Kit Contents =
- Mini Ultra-Thin 38kHz IR Remote Control
- HX1838 IR Receiver Module
- 5mm IR LED (for transmitting)
- 3-pin Dupont Jumper Cables (Female to Female, ~20cm)
- CR2025 Coin Cell Battery (included with most kits)
Some kits may ship without battery - verify product listing
Remote has 17 function keys including digits 0-9, navigation arrows, and OK button
The IR LED can be used to transmit codes for cloning remotes or controlling IR devices
= Pin Configuration =
IR Receiver Module (HX1838)
| Pin | Function | Description |
|---|
| OUT / S | Signal Output | Digital output to MCU (active low) |
| VCC | Power Supply | 3.3V - 5V DC input |
| GND | Ground | Common ground |
Pin order may vary by manufacturer - verify before connecting
The metal-domed face is the IR detection window
Wiring Guide
Arduino Connection
| Receiver Pin | Arduino Pin |
|---|
| VCC | 5V |
| GND | GND |
| OUT | Digital Pin 2 (or any digital pin) |
Raspberry Pi Connection
| Receiver Pin | Raspberry Pi Pin |
|---|
| VCC | Pin 1 (3.3V) |
| GND | Pin 6 (GND) |
| OUT | Pin 11 (GPIO 17) |
ESP32 Connection
| Receiver Pin | ESP32 Pin |
|---|
| VCC | 3.3V or 5V |
| GND | GND |
| OUT | GPIO 15 (or any input GPIO) |
Works with 3.3V and 5V logic levels - no level shifting required
Use interrupt-capable pins (D2/D3 on Uno) for reliable reception
= Remote Control Layout =
The 17-key remote features standard NEC protocol encoding:
| Row | Keys |
|---|
| 1 | Power, Mode, Mute |
| 2 | 1, 2, 3 |
| 3 | 4, 5, 6 |
| 4 | 7, 8, 9 |
| 5 | * (Star), 0, # (Hash) |
| 6 | ↑, OK, ↓ |
| 7 | ←, → |
Each button transmits a unique 32-bit NEC code
Use the included IR LED to clone remote signals or control other IR devices
= How It Works =
- The IR remote transmits modulated 38kHz infrared signals when buttons are pressed
- The HX1838 receiver detects and demodulates the IR signals
- The receiver outputs a digital pulse train matching the NEC protocol
- Your microcontroller decodes the pulses to identify the pressed button
- You can map each button to control motors, LEDs, MP3 players, or other devices
The receiver ignores ambient light and other interference sources
NEC protocol includes repeat codes (0xFFFFFFFF) when buttons are held down
Direct sunlight or fluorescent lights may interfere with reception
= Why Choose This IR Kit? =
Complete kit - all components included for immediate use
17-key remote with NEC protocol for reliable control
Up to 8-meter range for flexible installation
Compatible with 3.3V and 5V systems
Simple wiring and programming
Ideal for robotics, home automation, and MP3 control
√ Works with Arduino, ESP32, Raspberry Pi, and PIC
√ No additional components needed (except Arduino)
√ IR LED included for transmitting your own codes
√ Excellent value for interactive projects
√ Compact remote with long battery life
= Common Applications =
- Remote-controlled car and robot projects
- MP3 player and audio device control
- Home automation and smart lighting
- Interactive art installations
- TV and media player emulation
- Industrial remote control systems
- Educational microcontroller projects
= Safety Precautions =
Do not exceed 5.5V supply voltage
Ensure correct polarity (VCC/GND)
Keep IR receiver window clean and unobstructed
Protect from direct sunlight or strong artificial light
Avoid ESD when handling components
IR is lineofsight - walls and obstacles will block signals
Position receiver where it has clear view of the user
The HX1838 Infrared Wireless Remote Control Module Kit provides everything you need to add wireless IR control to your Arduino, Raspberry Pi, or microcontroller project. Perfect for robots, MP3 players, and interactive installations.
| IRREMOTE HX1838 INFRARED WIRELESS ARDUINO RASPBERRYPI DIY ROBOTICS REMOTECONTROL MP3 IRRECEIVER AUTOMATION | New | Best Seller | HX1838 |
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