I found this board, neat and cheap
https://www.aliexpress.com/item/Wireles ... 0bd465348e
I need to make a device that records audio, and sends it over the ethernet cable
- from this page it says it's the only board with an adc is 3.3v range... is it accurate ?
https://tttapa.github.io/ESP8266/Chap02 ... dware.html
- does it do SPI ? I need to adress this card
- can I also realtime read a keypad and print stuff on an LCD ?