| ESP32 IO PIN | Function | Direction | BME680 | MH-Z19B | ADXL345 | Neopixel | Comment |
|---|---|---|---|---|---|---|---|
| 13 | Application PB 1 | IN | N/A | N/A | Pull down push button | ||
| 15 | LED Green | OUT | N/A | N/A | LED x 3 | ||
| 16 | LED RED | OUT | N/A | N/A. | LED x 3 | ||
| 17 | LED Orange | LED x 3, took it from Extension port | |||||
| 32 | SCL | OUT | PAD 4 | N/A. | PIN14 | I2C | |
| 33 | SDA | OUT | PAD 3 | N/A. | PIN13 | I2C | |
| 25 | RX (UART1) | IN | N/A | RX | RX | ||
| 26 | TX (UART1) | OUT | N/A | TX | TX | ||
| 21 | GPOUT | IN | N/A | N/A. | This open-drain output can be configured to indicate BAT_LOW | ||
| 22 | LED Charge | OUT | |||||
| 23 | Led Power | OUT | |||||
| 24 | Charger status | IN | |||||
| 18 | INT ACC | ||||||
| 19 | INT ACC | ||||||
| 5 | Out | Data_in | |||||
| Extension | |||||||
| Connector Pin | Description | ||||||
| 1 | GPIO4 | ||||||
| 2 | +5V | ||||||
| 3 | GPIO5, debug | ||||||
| 4 | +3.3V | ||||||
| 5 | GPIO23 | ||||||
| 6 | GND | ||||||
| 7 | GPIO27 | ||||||
| 8 | GPIO39 | ||||||
| 9 | GPIO32 | ||||||
| 10 | GPI35 | ||||||
| 11 | GPIO33 | ||||||
| 12 | GPIO34 |
Last active
April 11, 2022 08:12
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