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Software Setup You should do the following things before the class:
Install Arduino IDE if you don't already have it - http://arduino.cc
Set up a Cayenne account - https://cayenne.mydevices.com
Install the following libraries:
Modify BME280 library
#define BME280_ADDRESS 0x77
#define BME280_ADDRESS 0x76
and then add #define CLASS_BME280 at the beginning of your program, so that way if you get an Adafruit BME280 board in the future, it will continue to work right…
Hardware Construction - On the programming board, wire an SPST or SPDT switch between GPIO
Power considerations The kit does not come with a power source. The regulator board requires at least 4.5V (and at most 15V!) to adequately supply 3.3V to the ESP8266 and BME280 boards.