Ultrasonic Series Display Board

This module adopts an 8-bit MCU as the main control chip, it can be applied in distance measurement, testing the performance of the HC-SR04 ultrasonic module. Plus, you can use this module in two ways since it supports Serial Port Display and Digital Tube Display.

How To Use

Measured distance can be displayed via the digital tube or serial port:

• Digital Display: directly connect ultrasonic sensor and provide 5V power supply (using wire jumpers or LiPo battery).
• Serial Port Output: connect the display module pins (VCC, TX, RX, GND) to USB to TTL converter pins (5V, RX, TX, GND) respectively. Select 9600 baud transmission rate and the output format is "D: XXX", where XXX represents the distance in centimeters.

Note: No code is required to use this module! Plug and play, very easy to use for beginners.

Additional Notes

• When measuring the distance, the area of the measured object should not be less than 0.5 square meters, and it should be smooth and have strong reflectivity. Failure to do so will affect the test result.

• Valid measuring distance: 3-400cm. If it is longer than this range, it will result in incorrect data or shows a 000 screen.

Specifications:

• Integrated STM8S103 High-Performance Microprocessor
• Interfaces:
  • Digital Tube Display
  • Serial Port Data Output
• Input Voltage: 5V
• LiPo Connector: 2.54mm socket (5V power supply)
• Measuring Distance: 3cm - 400cm
• Plate Size: 25mm x 35mm
• Weight: 7g

• 1 x SR04 Ultrasonic Series Display Board