Temp And Humidity 2

New and improved temperature and humidity sensor.

This one uses a Wemos D1 Mini ESP8266 (a $1.80 microprocessor with WiFi) with a DHT22 sensor. The USB input supplies power. Data is uploaded to Adafruit.IO every five minutes via WiFi using MQTT. Amazing inexpensive technology! enter image description here

Adafruit provides an attractive dashboard: enter image description here

Inspired by Andreas Spiess. “Cool.”

Update 2023-05-28:
I followed Adafruit’s beginner’s tutorial for this project: https://learn.adafruit.com/adafruit-io-basics-temperature-and-humidity.