D5 GPIO14 GPIO – General Purpose Input or Output pin WAKE – This pin can also be used to wake the ESP chip from sleeping. D0 GPIO16 GPIO – General Purpose Input or Output pin This pin can read voltages between 0V and 3V3 via a resistive potential divider. Wemos D1 Mini Pinout D1 Mini Pin ESP Pin Function RST RST Reset Pin – to reset the device A0 ADC0 ADC – analog to digital convertor. The full sized board is also compatible with the Arduino UNO shield form factor, so this board can be useful if you already have this type of shield. It features the USB and DC power jack in the same location as the UNO. The full-sized D1 board is basically an Arduino UNO board footprint. There is in fact a ‘full sized’ D1 board available, albeit far less common. There are several types of D1 boards available. Conclusion What Are The Different Types Of D1?.Pinout Diagram and Wiring For The Wemos D1 Mini.However don’t be put off from buying a clone, it is commonplace for open source projects such as those in the sphere or Arduino.Īlso the official boards do not seem to be easily available anyway, so the best option is to grab one on Amazon Choice with good reviews. The D1 Mini is widely available at places such as Amazon, although most likely these boards are clones. The official boards are produced by Lolin who are seemingly based in China, or at least their official store can be found over on Aliexpress.