Hello Charles,

I don't think I have a recommendation, yet.
The display driver boards arrived on the weekend. I finally decided on a DIP switch to configure between SPI and IIC, ePaper and OLED.
Good news is that the DIP switch approach is working. No SMD soldering required. The ESP board powers up the OLED using the new driver board.

Bad news is my display connector should be 24-1 but I made it 1-24. This means that the display cable has to be the wrong way around for now.
Also I got the spacing for the frame cut-outs wrong. Time for version 1.1 of the display driver board.

Second bad news is that the USB connection to the ESP board is unstable. Maybe I need to connect directly to the mainboard and not the USB connector on the PC case.
Third bad news it that the modified TeenAstroSHC does not yet run on the ESP board.

Mühsam ernährt sich das Eichhörnchen.

Best regards,
Norman

Hi norman !

there is some news about your new board ?
can you share the schematics and/or PCB files ?

Hello Nico,
good news and bad news.
The way I attached the ESP32 to the board was unusable for the USB connector which sort of doomed the design.
I used the native USB port of the ESP32, however on a two layer board the impendance of the wires becomes impossible.
I should have added a CP2102 bridge chip for the USB connection.

The display carrier however worked... sort of.

Took a moment to chalk up the loss to experience gained,
I'm now working on a MicroMod design.
In KiCad I've gathered and created the necessary symbols and footprints.

The design will include...
* the display electronics, so only a ribbon cable has to be attached
* the MicroMod M.2 slot to fit an ESP32 processor
* a cutout to fit the pins of a joystick
* connectors to the buttons

Haven't really found much better buttons than the existing ones, but just had an idea.

I plan on sharing the full design in KiCad once it's there, which will take some time.
The symbols and footprints could be shared now, but I don't know if anyone is using KiCad aside from me.
I think Charles is using Fritzing and you're using EasyEDA.

Kind regards, Norman