This is a simple IOT thermometer and humidity sensor. It is possible to run from 18650 3.7V Rechargeable Li-ion Battery or anything else over 3.5V for a decent long time (it depend how long the sleeping period).
- Wemos D1 mini
- DHT-22
- Resistor 330, 10K
- Molex plug
The 330R between rst and D0 is not obligatory, any resistor between 330R-520R is fine - suggested by wemos forum members. It need to wake up reliable from deepsleep.
#Library https://github.com/adafruit/DHT-sensor-library
