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Hi, i am trying to interface the scanner GT511C1R with the arduino uno but i dont have the JSH connector, so i saw the post but i really don’t understand how am i going to code it. Can anyone help, how maybe to connect it to the uart pins in arduino using the D+ and D-?
Yeah, I highly recommend getting the JST SH connector to breadboard [ https://www.sparkfun.com/products/14425 to use the sensor. The Arduino library talks with the sensor via the fingerprint scanner’s serial UART pins. There currently is no support in the library to use the USB pins with an Arduino. Additionally, an Arduino Uno does not have USB data pins on the ATmega328P to communicate. The back of the board has pins broken out to connect to a computer’s USB port as explained in the troubleshooting section => https://learn.sparkfun.com/tutorials/fingerprint-scanner-hookup-guide/troubleshooting.
Otherwise, try checking the Arduino forums or the Arduino Stack Exchange to see if anyone has tried connecting USB pins from a sensor to an Arduino Uno’s ATmega328P pins before.
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