It’s a PID block to be configured with I2C. GPIOs 7 through 2 are for error/control, and GPIOs 1 and 0 are SDA and SCL.
Configure with the I2C frame, see the I2C files for the “addresses”. See the I2C test file for an example.
# | Input | Output | Bidirectional |
---|---|---|---|
0 | none | segment a | Error/Control |
1 | none | segment b | Error/Control |
2 | none | segment c | Error/Control |
3 | none | segment d | Error/Control |
4 | none | segment e | Error/Control |
5 | none | segment f | Error/Control |
6 | none | segment g | SDA |
7 | none | dot | SCL |