THIS PROJECT HAS BEEN MERGED WITH UART Framework Expansion Card.
This Framework laptop expansion card will show up on your system as a serial device and allow for a non-isolated 3.3V I2C operation up to 400 kHz.
| # | Ref | Description |
|---|---|---|
| 1 | SDA | I2C data (3.3V) |
| 2 | GND | Ground connection |
| 3 | SCL | I2C clock (3.3V) |
| 4 | V+ | 3.3V output (200 mA) |
To connect to this board, one has to use a 4-pin JST XH connector, pin 1 being on the left as looking into the expansion card.
I would recommend using at least 24 AWG wire 0.25 mm² as they allow for greater compatibility with other connectors.
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