v81 The folder "M328Kit + TFT / Firmware / Markus Reschke / English" contains ready-made firmware for 3 different clock frequencies 8MHz, 16MHz and 20MHz. Look carefully!
Tried this previously and it didn't work, but have since tried it again and it does work.
Have flashed it across 2 different MCUs and it consistently fails on one of them... possible counterfeit or dud???
I know one of them came with the component tester and the other is sourced via Element14 in Australia.
So now i have a couple of firmwares working on 20MHz
The ready made firmware above does not seem to have a menu or any way to interact with the rotary encoder, just seems to repeat the test over and over.
Is there a way to add OneWire functionality to it?
To you and Yuriy_K - i appreciate both your help.