Quote from: odudex on Today at 01:14:57 PM

They look similar, but K210 is actually a quite special chip. It has more horsepower than current ESP32s, has dual RISCV(open source instruction set) cores running at 400MHz and also some hardware acceleration for video processing and SHA256. Keith, from SeedSigner is on an effort to run SeedSigner code on ESP32s, but it is quite challenging, as they run at 240MHz and lack of fast video buffers. ESP32 manufacturer, Espressif, now seems to be going in direction of RISCV cores, next chips will be more suitable to run optical signers.

I was able to run one ESP32 device called TTGO T-display with LNbits code like I wrote below, but I think someone said that same device can work with Jade hardware wallet firmware.
Jade hardware wallet is very similar with M5StickV K210 but I don't what exactly is hidden inside.
Here is my topic about cheap LNbits DIY Wallet:
https://bitcointalk.org/index.php?topic=5413707.0

Quote from: odudex on Today at 01:14:57 PM

You can easily find Amigos on Aliexpress, probably on Digikey, Mouser, etc. too

I didn't had very good experience with Aliexpress and their delivery, and there is only one Maix Amigo K210 I found on Ebay but it's used device.