On Mon, Mar 08, 2021 at 08:27:30PM +0000, Chris Packham wrote: [ ... ] > > Other than that, the only other real idea I have would be to monitor > > the i2c bus. > I am in the fortunate position of being able to go into the office and > even happen to have the expensive scope at the moment. Now I just need > to find a tame HW engineer so I don't burn myself trying to attach the > probes. > A bit unrelated, but you can get scopes connected through usb which are quite low-cost (like in the $100 range) and good enough for i2c testing. Guenter