Screenshot of my Thingspeak dashboard: it displays a thermometer (84. deg F) and hygrometer (45%). Also included are two 7 day graphs of data, collected by a web-connected ESP32 with sensors.

Sometimes, you just have to build a better thermometer. So, I present to you a very rough around the edges temp/humidity sensor, lives in my garden, sends temp and humidity readings to the web.

Tech Stack for this:
#ESP32
#arduino
#dht21
#C++
#Thingspeak