Will this work with the LilyGo T-embed?

[ajfriesen]

Will this work with the LilyGo T-embed?

https://lilygo.cc/en-pl/products/t-embed

• ESP32-S3
• 1.9-inch IPS color TFT LCD (ST7789)
• Rotary encoder + confirmation key in one
• etc.

[skjdghsdjgsdj]

That is a pretty cool device and physically looks ideal for the BabyPod software: it has a small screen, rotary controller, Wi-Fi, and can take a battery. Being ESP32-S3 also helps a lot.

It won't work as a BabyPod out of the box but I think could, with some software modifications. The biggest tl;dr: you'll need to implement some hardware abstractions, most notably for the LCD (biggest issue), rotary encoder, speaker, and if it's capable, battery monitor.

• It has a true speaker instead of a piezo, so the code for sounds would need to be abstracted. Note you don't need sounds for a BabyPod to work.
• It has a proper LCD instead of a character LCD. This would be the biggest change: the UI code would need to be abstracted out, likely to emulate a character LCD for compatibility's sake. CircuitPython has displayio for this but the UI components need to be ported to use it.
• It's unclear to me if it has a battery monitor ("fuel gauge"). It looks like it accepts a battery but I can't tell if its charge percentage can be monitored through CircuitPython. Like the piezo, this isn't essential but it's something you'd want.
• It looks like it supports a microSD card ("TF card holder" in the specs). That's good because that's half of what you need for offline support. The other half is a real-time clock (RTC) that has a battery backup. I don't see this listed in the specs. So, if either the microSD card reader isn't compatible or it lacks an RTC, you'd have to use this online-only; i.e., you always need to be able to connect to Wi-Fi for it to work.
• It looks like IO46 can serve as a power button. But, if there isn't actually one there, you need to wire in your own which doesn't look doable or use the rotary encoder as an interrupt; the latter requires software support and it must be capable of serving as a deep sleep interrupt.