Mô đun kiểm tra cổng ra siêu âm HCSR04 tại Lotte Market
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”The measuring distance can be displayed simultaneously through the digital tube and the serial port. Serial port output: plug in the ultrasonic module, connect the VCC, TX, RX, and GND of the module to 5V, RX, TX. When measuring the distance, the area of the object to be measured should be no less than 0. The effective measurement distance is: Còn hàng
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Giới thiệu Mô đun kiểm tra cổng ra siêu âm HCSR04 tại Lotte Market
”The measuring distance can be displayed simultaneously through the digital tube and the serial port
Digital tube display: directly plug in the ultrasonic module and connect to the 5V power supply
Serial port output: plug in the ultrasonic module, connect the VCC, TX, RX, and GND of the module to 5V, RX, TX. GND of the USB to TTL module respectively, the serial port communication baud rate is 9600, output format: ””D:XXX\r\ n”, where XXX represents the distance unit is CM.
Precautions:
1. When measuring the distance, the area of the object to be measured should be no less than 0.5 square meters and should be as flat as possible and have a slightly stronger reflection ability, otherwise it will affect the test results.
2. The effective measurement distance is 3cm-400cm. Exceeding this range may cause data inaccuracy or display 000.”