Wemos D1 Mini pinout :
| Wemos D1 mini | Function | ESP8266 pin |
|---|---|---|
| D0 | IO | GPIO16 |
| D1 | IO, SCL | GPIO5 |
| D2 | IO, SDA | GPIO4 |
| D3 | IO, 10k pullup | GPIO0 |
| D4 | IO, 10k pullup, BUILTIN_LED | GPIO2 |
| D5 | IO, SCK | GPIO14 |
| D6 | IO, MISO | GPIO12 |
| D7 | IO, MOSI | GPIO13 |
| D8 | IO, 10k pullup, SS | GPIO15 |
| A0 | Analog input, max 3.3v | A0 |
| Tx | TXD | TXD |
| Rx | RXD | RXD |
| RST | Reset | RST |
*All IO have interrupt/pwm/I2C/one-wire supported(except D0)