Exception message: The received packet do not begin with a valid header!

bastianraschke / pyfingerprint

Python library for ZhianTec fingerprint sensors (e.g. ZFM-20, ZFM-60)

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Exception message: The received packet do not begin with a valid header! #99

Open snappercayt opened 4 years ago

snappercayt commented 4 years ago

Hi, made some changes to the code to work on Raspberrypi 3b+ on its serial port changed ttyUSB0 to ttyS0 so now GPIO should be working as the port for the sensor but this is not working

def __init__(self, port = '/dev/ttyS0', baudRate = 57600, address = 0xFFFFFFFF, password = 0x00000000):

I did not change anything else so what should be giving this error?

philippmeisberger commented 4 years ago

Hi, please see https://sicherheitskritisch.de/2015/03/fingerprint-sensor-fuer-den-raspberry-pi-und-debian-linux-en/, #1 or #71.

snappercayt commented 4 years ago

Thanks! I did check that and what not lol tried to edit the read header function in the PyFingerprint then went back to the same file, I know its the old one because I removed all the files and installed it again and now I see this

>>> %Run enroll.py
The fingerprint sensor could not be initialized!
Exception message: 'module' object is not callable

matigarowel commented 2 years ago

I solve this using this command sudo stty -F /dev/ttyS0 57600