2.1.5 External 3.3V Header (J5)
This 2-pin header allows for an external 3.3V supply. Populate R19 with a 0-ohm resistor and leave R54 unpopulated (DNP) to use the external 3.3V supply. See the pin details here.
| Pin No. | Signal Name | Pin Description |
|---|---|---|
| 1 | +3.3V_EXT | External 3.3V Supply |
| 2 | GND | Ground |
