Reference: ESP32-PoE-ISO-Rev B Datasheet
| EXT1 pin | Function | Connected to | Top Case Wire Colour |
|---|---|---|---|
| 1 | +5v | Orange | |
| 2 | +3.3v | ||
| 3 | GND | Brown | |
| 4 | ESP_EN | ||
| 5 | GPIO0 | LED_GO | White |
| 6 | GPIO1 | JACK_IN | Grey |
| 7 | GPIO2 | LCD_SDA | Purple |
| 8 | GPIO3 | LCD_RST | Blue |
| 9 | GPIO4 | LCD_DC | Green |
| 10 | GPIO5 | LCD_CS | Yellow |
| EXT2 pin | Function | Connected to | Top Case Wire Colour |
|---|---|---|---|
| 1 | GPI39 | BTN_NEXT | Yellow |
| 2 | GPI36 | BTN_PREV | Green |
| 3 | GPI35 | BTN_STOP | Blue |
| 4 | GPI34 | BTN_PAUSE | Purple |
| 5 | GPIO33 | BTN_GO | Grey |
| 6 | GPIO32 | LED_NEXT | White |
| 7 | GPIO16 | LED_PREV | Black |
| 8 | GPIO15 | LED_STOP | Brown |
| 9 | GPIO14 | LCD_SCL | Orange |
| 10 | GPIO13 | LED_PAUSE | Red |