Ultraschall Entfernungsmessplatine Entfernungsmesser Digital für HC-SR04US
ab 2,60 €
And it supports serial port display and digital tube display. 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.
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