Ok. Thanks Dave.
I got my ATU-100 on track now so I can try myself.
I wanted to sort out why my power reading was so off and eventually found out it was because I wound the directional coupler before I understood that the number of turns was counted solely by the number passing through the core ? I had 6 turns instead of 5...
I'll get back to you when done.
If you have the little rektangular OLED I could share my EEPROM for you to get a fresh start? There are only a handfull of addresses to try though. I found my OLED on the third try ?