Generic STM8S103 Digital Display Board for HC-SR04 Ultrasonic Sensor - 5V Interface
This digital display board integrates an STM8S103 microcontroller to provide real-time distance readout for HC-SR04 ultrasonic modules via a 3-digit digital tube and serial UART output. It operates on a 5V DC supply and is compatible with Arduino, Raspberry Pi, and other microcontroller systems requiring visual or serial distance data.
Features
- Onboard STM8S103 8-bit microcontroller for processing HC-SR04 sensor data.
- Dual-output display: 3-digit digital tube and serial UART (9600 baud).
- Valid measurement range of 3 cm to 400 cm with distance displayed in centimeters.
- Simple 5V DC power interface via standard 2.54mm pin header sockets.
- Compact PCB footprint (36mm x 25mm) for easy integration into projects and enclosures.
Out of stock
This control board serves as a dedicated interface and display unit for the ubiquitous HC-SR04 ultrasonic distance sensor. It utilizes an STM8S103 microprocessor to handle the timing and pulse calculations from the sensor, converting the raw echo time into a precise distance value. The processed data is output simultaneously through a bright 3-digit digital tube for immediate visual feedback and via a TTL-level serial UART port for logging or further processing by a host system like an Arduino or Raspberry Pi.
The board is designed for straightforward integration, requiring only a 5V power connection and the plug-in of the HC-SR04 module. Its serial output follows a simple “D: XXXr
” format at 9600 baud, making it easy to parse. The compact design and pre-programmed firmware make it an ideal solution for prototyping, educational demonstrations, or as a permanent display component in robotics, level sensing, or obstacle detection systems.
Additional Information
| Weight | 0.083 kg |
|---|---|
| Dimensions | 8 × 7 × 4 cm |
