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Expansion Connectors (J2)
| GPIO | Name | Mode | V | PU/PD | PIN | PIN | PU/PD | V | Mode | Name | GPIO |
|---|---|---|---|---|---|---|---|---|---|---|---|
| - | 3.3V | - | - | - | 1 | 2 | - | - | - | 5.0V | - |
| 74 | I2CA_SDA | - | - | - | 3 | 4 | - | - | - | 5.0V | - |
| 75 | 3.3V | - | - | - | 5 | 6 | - | - | - | 5.0V | - |
| 83 | 3.3V | - | - | - | 7 | 8 | - | - | - | 5.0V | - |
| - | 3.3V | - | - | - | 9 | 10 | - | - | - | 5.0V | - |
| 88 | 3.3V | - | - | - | 11 | 12 | - | - | - | 5.0V | - |
| 116 | 3.3V | - | - | - | 13 | 14 | - | - | - | 5.0V | - |
| 115 | 3.3V | - | - | - | 15 | 16 | - | - | - | 5.0V | - |
| - | 3.3V | - | - | - | 17 | 18 | - | - | - | 5.0V | - |
| 107 | 3.3V | - | - | - | 19 | 20 | - | - | - | 5.0V | - |
| 106 | 3.3V | - | - | - | 21 | 22 | - | - | - | 5.0V | - |
| 105 | 3.3V | - | - | - | 23 | 24 | - | - | - | 5.0V | - |
| - | 3.3V | - | - | - | 25 | 26 | - | - | - | 5.0V | - |
| 76 | 3.3V | - | - | - | 27 | 28 | - | - | - | 5.0V | - |
| 101 | 3.3V | - | - | - | 29 | 30 | - | - | - | 5.0V | - |
| 100 | 3.3V | - | - | - | 31 | 32 | - | - | - | 5.0V | - |
| 108 | 3.3V | - | - | - | 33 | 34 | - | - | - | 5.0V | - |
| 97 | 3.3V | - | - | - | 35 | 36 | - | - | - | 5.0V | - |
| - | 3.3V | - | - | - | 37 | 38 | - | - | - | 5.0V | - |
| - | 3.3V | - | - | - | 39 | 40 | - | - | - | 5.0V | - |
