Critical, fatal error 'NoneType' object has to no attribute 'read' about fabscanpi-server HOT 4 CLOSED

Have you checked the serial port config in your default.config.json. The default value is

/dev/ttyAMA0

but in your case it should be

/dev/ttyACM0

from fabscanpi-server.

Yes, I've changed that value to /dev/ttyACM0

I've also changed the command in /etc/init.d/fabscanpi-server, the line at avrdude-autoreset, to avrdude-autoreset -c wiring -p m2560 -P /dev/ttyACM0 -b 115200 -l /dev/null

and still a no go. I also changed the baud rate in the firmware and default.config.json to 115200.

During all of my testing the RAMPS board has been plugged into the pi zero W.

I also changed the file under /usr/bin/avrdude-reset to ACM0 instead of AMA0

Not sure if it's related or not but I've also tried installing manually on top of the pre-made image and when I try installing 'python-opencv-tbb' it gives an error as seen in the screen cap.

from fabscanpi-server.

Do you need more info to help me or something??

from fabscanpi-server.

Could be a boot loader problem, if the issue still remains by using v.0.8.0 try to flash the bootloader

from fabscanpi-server.