Project: Weather Station

Power:

USB Charger--- 5V ----->USB Cable------->5V-----> Vin Anbest 3.3V Regulator---Vout------>3.3V Bus

Note: A 6v Battery can be used for a short time, but system draws a fair amount of current

BME 280:  

              GND-----> GND Bus

              Vcc------->3.3V Bus

               SCL------->SCL on Dragontail

               SDA------>SDA on Dragontail

 ESP 8244-ESP 01 Breakout:

                    Vcc------>3.3V Bus

                     GND----->GND Bus

                      TX0------> Pin 1 on Dragontail

                       RxD------>Pin 0 on nDragontail

                       CHPD(EN)----->3.3V Bus