DHT22 Shield Wemos D1

DHT22 Shield for Wemos D1.
The DHT22 is a simple, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to sense the ambient air and outputs a digital signal on the data pin (no analog input pins needed). It's fairly simple to use, but requires careful timing to get data. The only real downside to this sensor is that it only gives you new data every 2 seconds.

This shield is easy to use with a wemos D1 board. Pin D4 is used by this shield.

DHT22 Shield Wemos D1 specifications:
– Voltage: 5 V
– Temperature range: -40-80 ± 0.5
– Humidity: 20-90% RH ± 2% RH