Hello everyone
Iam using R307 Finger Print sensor. And while running it it is showing sensor not found in the serial monitor. And also the sensor is getting on for one second and getting off every time it is like this only while i providing the power. I have connected the Red wire - 5V , Black Wire - Gnd , White wire - Rx , Green wire - Tx. This is my wiring Connection can anyone will help me with this problem.
Could you share the program you are using?
Are your wire colors the same as in this amazon listing?
If yes, than I think you have your wire connections wrong. According to the manual linked below, Tx is pin 3 and Rx is pin 4.
I have connected according that only but it is not working
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Posting an annotated schematic showing how it is wired including power and ground would help. Include links to technical information on your hardware devices.
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