Derek_Stewart wrote:Maybe it is better to foget about QEP as there is no schematics, PCB files, parts lists, software amybe still copyright, no software source code.
I have a schematic. It was made by one of the better known people who frequents here. However, the schematic is not very useful. It's split across several pages and there are many missing/hanging nets. Also, the power arrangement on it to create programming power is insane.
I got a semi-functional board.
It seems not just designing and building the board is necessary, but also very careful set-up and calibration. Those details are lost.
It might be that a different project might be better for you and the community?