Since I already built a handheld in the past (https://hackaday.io/project/176661-retropie-handheld) that did Atari Lynx emulation, the Raspberry Pi is a logical choice. A drawback of using the Pi though is that it takes quite some time to boot into the emulator, which does not make you feel yo are using a 'real' Lynx.  But while designing the housing it struck me that it might be a great fit for the 'CYD' or 'Cheap Yellow Display'. Unfortunately when placing this unit in the design it is obviously a little too small. Which is correct: this is a 2.8" screen, and the Atari has a 3.5 ". Using an ESP32 based solution would however ( probably) solve the boot problem, and most likely use less power.

There is an ESP32 based emulator: https://github.com/ducalex/retro-go. It seems that it is only readily available for the Odroid-Go and MRGC-G32, but it should be possible to run it on other devices as well. It supports screens that have a ILI9341 driver, which are available in different sizes at AliExpress. I ordered the 3.5"TFT version, which seems like a nice size for the Lynx.

And this ESP32-S3 board seems powerful enough to run this application:

It can be found in the Retro-Go Github as 'ESP32-S3-DevKitC', so there is some support available. Lets try to get it running...