I’ve tried the DHT11 sensor modules at both Vcc 3.3V and 5.0V, and at both voltages the humidity values are bad. dfrobot has introduced a V2 DHT11 sensor module that changes the 10K pull-up to 4.7K.

From within the application, you can then visualize that data in a number of ways using the simple drag-and-drop interface. We’ve seen Blynk and ESP8266 used to control everything from mood ...