temperature
4 pages across tutorials, modules, pinouts and guides.
SHT31 Temperature and Humidity Sensor
A Sensirion SHT31 on a TinkerBlock carrier: two numbers over two shared wires, calibrated at the factory, with the pull-ups already fitted and two jumpers on the back that set the address and take them away again.
NTC Thermistor
A 10 kΩ NTC thermistor in a divider with a fixed 10 kΩ: SIGNAL is half of VCC at 25 °C and falls as it warms. Read it on any analog pin and turn it into degrees with two lines of arithmetic.
DHT22 and DHT11 Temperature and Humidity Sensors
Two sensors on one board design, one data wire, one library. What each is worth, why the same forty bits decode two ways, and the six-pack that holds three of each.
Put a DHT22 on the internet in 20 minutes
Wire a temperature and humidity sensor to an ESP32-S3, and watch the readings land on a live dashboard you can open from your phone. No backend, no server, no port forwarding.