Ультразвуковой измерения расстояния управление доска дальномер цифровой дисплей для HC SR04 8 бит MCU Diy Электронный печатной платы модуль

Descriptions:


This module adopts 8 bit MCU as main control chip, it can be applied in distance measurement, testing HC-SR04 ultrasonic module performance. And it supports serial port display and digital tube display


Function
Features:


1. Onboard STM8S103 high performance microprocessor


2. With digital tube display


3. Serial port data output


4. Valid Measurement Distance: 3-400cm


5. Display Unit: cm


6. Max Error: 5V


Hardware Introduction:


1. Board Size: 24.2*35.1mm


2. VCC, GND: 5V power interface


3. 2.54mm White Socket: 5V power interface


4. TX: module serial port transmit pin


5. RX: module serial port receive pin


6. NRST, SWIN: preset STM8 program download port


Usage:


1. The measurement distance can be displayed via digital tube and serial port Digital Tube Display: directly plug in the ultrasonic module, connect 5V power


2. Serial Port: plug in ultrasonic module, VCC, TX, RX, GND respectively connects 5V, RX, TX, GND of USB to TTL module; serial port communication baud rate 9600, output format "D:XXX\\r\\n", XXX represents distance, unit is cm


Notice:


1.When measuring the distance, the area of measured object should be no less than 0.5 square meter, and it should be smooth and has strong reflectivity; otherwise, it will affect the test result


2.Valid Measurement Distance: 3-400cm; if longer than this range, it will lead to incorrect data or 000 display