Sketches used in the 2020-2021 online EnviroDIY workshops, using the Mayfly 0.5b version board.

Sketches 1-3 require no additional hardware or accessories. The rest of the sketches require the following items:

Grove AHT20 digital humidity and temperature sensor:

https://www.seeedstudio.com/Grove-AHT20-I2C-Industrial-grade-temperature-and-humidity-sensor-p-4497.html
https://www.digikey.com/en/products/detail/seeed-technology-co-ltd/101990644/11681294
(also requires a Grove cable which is not included with the AHT20 but is included in the EnviroDIY Mayfly Starter Kit, or you can purchase Grove cables of different lengths separately from a wide variety of vendors)

Grove DS18B20 waterproof temperature sensor:

https://www.seeedstudio.com/One-Wire-Temperature-Sensor-p-1235.html

DFRobot ESP8266 Wifi Bee:

https://www.dfrobot.com/product-1279.html
https://www.digikey.com/en/products/detail/dfrobot/TEL0092/6588468

Libraries:

Sketches 3-8 require the EnviroDIY Libraries zip file, available here: https://github.com/EnviroDIY/Libraries
Follow the instructions in the Readme to download the zip file and copy the folders into you MyDocuments/Adruino/libraries directory,

In addition, the AHT20 sketches require a library available here: https://github.com/adafruit/Adafruit_AHTX0
Or simply use the Arduino IDE's Library Manager to install the library by searching for "Adafruit AHTX0" and click Install.