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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 | IN | 1 | - | 3 | 4 | - | - | - | 5.0V | - |
| 75 | I2CA_SCL | IN | 1 | - | 5 | 6 | - | - | - | GND | - |
| 83 | GPIOY.3 | IN | 0 | P/D | 7 | 8 | P/U | 1 | ALT1 | GPIOX.16 | 113 |
| - | GND | - | - | - | 9 | 10 | P/U | 1 | ALT1 | GPIOX.17 | 114 |
| 88 | GPIOY.8 | IN | 1 | P/U | 11 | 12 | P/D | 0 | IN | GPIOY.7 | 87 |
| 116 | GPIOX.19 | IN | 1 | P/U | 13 | 14 | - | - | - | GND | - |
| 115 | GPIOX.18 | IN | 0 | P/D | 15 | 16 | P/U | 1 | IN | GPIOX.7 | 104 |
| - | 3.3V | - | - | - | 17 | 18 | P/U | 1 | IN | GPIOX.5 | 102 |
| 107 | GPIOX.10 | IN | 1 | P/U | 19 | 20 | - | - | - | GND | - |
| 106 | GPIOX.9 | IN | 1 | P/U | 21 | 22 | P/U | 1 | IN | GPIOX.6 | 103 |
| 105 | GPIOX.8 | IN | 1 | P/U | 23 | 24 | P/D | 0 | IN | GPIOX.20 | 117 |
| - | GND | - | - | - | 25 | 26 | P/U | 1 | IN | GPIOX.21 | 118 |
| 76 | I2CB_SDA | IN | 1 | - | 27 | 28 | - | - | - | I2CB_SCL | 77 |
| 101 | GPIOX.4 | IN | 1 | P/U | 29 | 30 | - | - | - | GND | - |
| 100 | GPIOX.3 | IN | 1 | P/U | 31 | 32 | P/U | 1 | IN | GPIOX.2 | 99 |
| 108 | GPIOX.11 | IN | 0 | P/D | 33 | 34 | - | - | - | GND | - |
| 97 | GPIOX.0 | IN | 1 | P/U | 35 | 36 | P/U | 1 | IN | GPIOX.1 | 98 |
| - | ADC.AIN0 | - | - | - | 37 | 38 | - | - | - | 1.8V REF | - |
| - | GND | - | - | - | 39 | 40 | - | - | - | ADC.AIN1 | - |
