Pin index definition for headers :
8 pin header
Grove socket
GPIO
| MRAA | HEADER PIN INDEX | SYSFS PIN | RK3229 PIN |
|---|---|---|---|
| 0 | 0 | 1091 | GPIO2_D3 |
| 1 | 1 | -- | VCC |
| 2 | 2 | 1043 | GPIO1_B3 |
| 3 | 3 | 1127 | GPIO3_D7 |
| 4 | 4 | 1017 | GPIO0_C1 |
| 5 | 5 | 1067 | GPIO2_A3 |
| 6 | 6 | -- | GND |
| 7 | 7 | 1013 | GPIO0_B5 |
| 8 | 8 | 1085 | GPIO2_C5 |
| 9 | 9 | 1084 | GPIO2_C4 |
| 10 | 10 | -- | VCC |
| 11 | 11 | -- | GND |
I2C
| MRAA | HEADER PIN INDEX | SYSFS PIN | RK3229 PIN |
|---|---|---|---|
| 0 | 8 | -- | I2C2_SCL |
| 0 | 9 | -- | I2C2_SDA |