Troubleshooting

Capacitive Fingerprint Communication Failed Error

userHead nine7 2023-06-13 06:29:57 320 Views4 Replies

I have this Capacitive Fingerprint Scanner/Sensor Arduino - DFRobot  fingerprint scanner and i cant seem to change the baud rate back, The defualt read was 57600 when i ran the code, it changed to 8389400 and now it has a communication failure error and i can get anything to work on the fingerprint scanner. 

 

What can i do to restore this to work. 

2023-06-13 18:16:04

Pls modify the code. The module initialization baud rate needs to correspond to the baud rate in the code.

 

FPSerial.begin(57600);

userHeadPic jenna
2023-06-13 17:24:10

Could you attach the screenshot of the code and the screenshot of your serial monitor?

I found the "communication failed" occured only when you not wired properly or power it under wrong voltage.

userHeadPic Yeez_B
2023-06-13 10:42:28

Is the fingerprint.setBaudrate(fingerprint.e115200bps); function not working?

userHeadPic bidrohini.bidrohini
nine7 wrote:

i ran the code and its now saying communication error

2023-06-13 11:36:38
1 Replies