Ultrasonic Distance Measurement Module Test board HC-SR04 Display Range Finder * Without Sensor

Description:

Onboard STM8S103 high-performance microprocessor.

Digital tube display for easily viewing data result

Working Voltage: 5V

Data can be output through the serial port

Display Unit: cm

Maximum error: about 1%; Effective Measurement Distance: 3-400cm

Size: 24.2×35.1mm/0.95×1.38 inch

Interface Port Manual:

VCC for 5V power interface

TX for module serial port transmit terminal

RX for module serial port receive terminal

NRST/SWIN for Reserved STM8 programming download port

GND for 5V power interface

Specification:

Test results can be displayed through the digital tube and serial port at the same time.

Digital Tube Display: plug in the ultrasonic module directly, and connect to the 5V power supply.

Serial Port Output: plug in the ultrasonic module, the port VCC, TX, RX, and GND are respectively connected to the 5V, RX, TX, and GND of the USB to TTL module. The serial communication baud rate is 9600 and the output format is“D: XXX\R\N”, where XXX represents distance. The display unit is cm.

Note:

The area of the tested object which is flat and has the strong reflective ability is not less than 0.5 square meters otherwise it will affect the test results.

Effective test distance is 3cm-400cm, over the range may result in data inaccuracy or displaying 000.