Specifications
- Socket for WeMos D1 mini shields
- 3.3 V and 5 V power
- Current depends on the attached shield, mind the Mainboard power budget
- Shield I2C (D1, D2) goes to IO4 and IO3, not to the IO14, IO15 bus of the other modules
- Uses: extending what the Mainboard can do
Pins
Which Mainboard pin matches which WeMos D1 mini pin:
| Pin | Function |
|---|---|
| IO1 | D4 |
| IO2 | D3 |
| IO3 | D2 |
| IO4 | D1 |
| IO5 | RX |
| IO6 | TX |
| IO9 | RST |
| IO10 | A0 |
| IO11 | D0 |
| IO12 | D5 |
| IO13 | D6 |
| IO14 | D7 |
| IO15 | D8 |
Wiring diagram
Shields: DS18B20 Shield