Skywriter wont run with Raspberry Pi 3


I am using Raspbian Stretch with Raspberry Pi 3 and skywriter library is 0.0.7

Traceback (most recent call last):
File “”, line 10, in
File “/usr/local/lib/python3.5/dist-packages/skywriter-0.0.7-py3.5.egg/”, line 431, in move

File “/usr/local/lib/python3.5/dist-packages/skywriter-0.0.7-py3.5.egg/”, line 484, in setup
The handler will receive a rotation delta in degrees
OSError: [Errno 121] Remote I/O error
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
File “/usr/local/lib/python3.5/dist-packages/skywriter-0.0.7-py3.5.egg/”, line 457, in _exit
A sort of grab-and-throw-away-garbage above the Skywriter
File “/usr/local/lib/python3.5/dist-packages/skywriter-0.0.7-py3.5.egg/”, line 315, in _stop_poll
Assert transfer line low to ensure
AttributeError: ‘NoneType’ object has no attribute 'stop’
This is my output for i2cdetect -y 1
Can someone suggest how to fix this.


Is this a Skywriter? (IE: not a Skywriter HAT) Could you post some pictures of your wiring?


@gadgetoid I apologize, its a skywriter hat. I should have mentioned that. So I’m guessing I don’t need any wiring. I just stack it on top of the Pi.


Absolutely. What type of Pi is this on?


It was a Pi 3. Turns out the hat was non functional.


Did you get a working replacement?