Digital Display for HC-SR04 Ultrasonic Distance Measurement Control Board

The Digital Display for HC-SR04 Ultrasonic Distance Measurement Control Board is a compact and efficient module designed to test and measure distance using the HC-SR04 ultrasonic sensor. Powered by an onboard STM8S103 microcontroller, this board offers precise performance and supports both digital tube display and serial data output. Ideal for robotics, automation, and distance monitoring applications, it provides accurate measurements and a user-friendly design.

Features:

1. Onboard STM8S103 Microcontroller is a high-performance chip that ensures efficient operation.
2. Supports both digital tube display and serial port data output.
3. Measures distances from 3cm to 400cm with a unit display in centimeters.
4. Equipped with VCC, GND, TX, and RX pins for easy interfacing with power and serial modules.
5. Small and lightweight for seamless integration into projects.

Specifications:

• Input Voltage: 5V DC
• Valid Measurement Distance: 3cm to 400cm
• Display Unit: Centimeters (cm)
• Communication: Serial port with baud rate of 9600 (output format: D:XXX\r\n)
• Board Size: 36mm x 25mm x 12mm

Usage Instructions:

1. Connect the HC-SR04 module to the board, power it with 5V, and view the measured distance directly on the digital display.
2. Connect the module’s VCC, TX, RX, and GND pins to a USB-to-TTL module (5V, RX, TX, and GND, respectively). The measured distance will be output via the serial port in the format “D:XXX\r\n” (XXX is the distance in cm).

Note:

• For accurate measurement, ensure the measured object has an area of at least 0.5 square meters, is smooth, and has good reflectivity.
• Measurements exceeding 400cm may result in incorrect data or a "000" display.

Package Includes:

1 x Digital Display for HC-SR04 Ultrasonic Distance Measurement Control Board