feat: extension card #7
Description
Check availability for extension.
- in
- out
- clock
- GND
- 3.3V
Protocol to be defined between them.
Extension with a pico ? or nano ? or else ?
- requirements for screen (Adresse I2C 0x3C)
- requirements for SD card R/W
- requirements for audio ? (jack)
- requirements for IR LED ?
- usb hub ?
- 5V ?