This is just a heads up on what I see as using ribbon cable to connect HAT's.
I purchased a 2.13inch Touch E-Paper E-Ink Display for Raspberry Pi Zero https://www.waveshare.com/product/2.13i ... h-case.htm. I was trying to do the development on a P400 and using a ribbon cable to connect to the Waveshare HAT. It uses both SPI and I2C.
I have intermittent success using the demo package which comes with it.
Then I was continually getting the following error when I try to run itI added code to give me a traceback and found out the error is on an I2C call to 'write_byte_data'. Google check indicates a potential connection problem but everything is tight.
I wasn't able to find a Waveshare Forum to post questions to.
I have not put the Waveshare HAT directly on a RPI ZERO and have no problems. Not sure what the issue is unless the ribbon cable was picking up interference and/or introducing timing issues.
Just a heads up for those who follow
I purchased a 2.13inch Touch E-Paper E-Ink Display for Raspberry Pi Zero https://www.waveshare.com/product/2.13i ... h-case.htm. I was trying to do the development on a P400 and using a ribbon cable to connect to the Waveshare HAT. It uses both SPI and I2C.
I have intermittent success using the demo package which comes with it.
Then I was continually getting the following error when I try to run it
Code:
sudo python3 TP2in13_test.pyINFO:root:epd2in13_test_V2.py Touch DemoINFO:root: Init and ClearINFO:root:[Error 121] Remote I/O Error I wasn't able to find a Waveshare Forum to post questions to.
I have not put the Waveshare HAT directly on a RPI ZERO and have no problems. Not sure what the issue is unless the ribbon cable was picking up interference and/or introducing timing issues.
Just a heads up for those who follow
Statistics: Posted by DS256 — Thu Mar 13, 2025 2:14 pm