Min. Order:
1000 Bag
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computer at a interval of 1 second.
Tips for circuits designing 1, LD09 sensor working current is 5V , data commnuicate and control pins need 3.3V as the high level ,mainboard MCU is 5V power supply , need to add level convert ships or circuits between the communication cables (RXD ,TXD ) and controls cables ( Set , RESET)
2, SET and RESET inside has pull-up resistor , it should be suspended when
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