wafa_ath
wafa_ath
VR ATmega328P with R305 Fingerprint Sensor: System Hangs on finger.begin() - No Response from Sensor
You are using SoftwareSerial on pins 2 and 3, but you're trying to communicate with the sensor using hardware UART pins (D0, D1). Either update mySerial to use pins 0 and 1 for hardware UART, or stick with SoftwareSerial and connect the fingerprint sensor to pins 2 and 3.
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