Hi,
relatively new to this and have been struggling for a while so reaching out.
I have a Raspberry Pi4 with a Hifiberry Digi2Pro (2.2), trying to get a Winstar WEH001602AWPP5N00000 16x2 OLED working and all I have is a blank screen.
I have loaded pydpiper from Saiyato which appears to work fine at the front end.
I am running 3.785 but have tried far back as 3.631, doesn’t seem to make a difference.
I am using the WEH/WEG Parallel connection setup (GPIOs 7,8,25,24,23,27) which I do not believe clashes with the SPDIF, and not usng 6 GND.
I have done a point to point across all connections which all look good and I’m reading 4.9V at the screen terminal. Occasionally whilst measuring across 1 and 2 the screen may flicker to life so I don’t think it is the screen.
Can anyone give me some pointers or tell me what I’m missing?