Compare print to file Error

[josevargasop]

I'm trying to use this example but i get this error when I try to compare print to file.

Waiting for finger print... Templating... Loading file template...Traceback (most recent call last): File "/home/pi/Adafruit_CircuitPython_Fingerprint/examples/fingerprint_template_file_compare.py", line 199, in <module> fingerprint_check_file() File "/home/pi/Adafruit_CircuitPython_Fingerprint/examples/fingerprint_template_file_compare.py", line 72, in fingerprint_check_file i = finger.compare_templates() ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/pi/.local/lib/python3.11/site-packages/adafruit_fingerprint.py", line 323, in compare_templates r = self._get_packet(14) ^^^^^^^^^^^^^^^^^^^^ File "/home/pi/.local/lib/python3.11/site-packages/adafruit_fingerprint.py", line 349, in _get_packet raise RuntimeError("Failed to read data from sensor") RuntimeError: Failed to read data from sensor

I'm on raspberry pi 4 with this sensor

All the other examples works fine.

[cvillegas2023]

I have the same error. I tried this link, but it was not solved or I did not understand the instructions

https://github.com/adafruit/Adafruit_CircuitPython_Fingerprint/issues/30

[josevargasop]

I have the same error. I tried this link, but it was not solved or I did not understand the instructions

30

Hello, do you need help? I finally solve it.

i dont remember all but I think i only write a:

time.sleep

before

i = finger.compare_templates()