More SONFF, Node Red, and MQTT testing

Below is my simple lash up of the DHT-11 sensor to the basic SONOFF switch using the unused GPIO. I am powering it via the FTDI board. This works great for the sensor and LED on the SONOFF but does not fully operate the relay. I did this so I could range test the Wifi and actually had it powered by a USB battery pack. The range was great, good signal in the house and back yard.

The Node Red UI screen below shows the use of the chart function to plot the WiFi signal level and DHT-11 temperature. The Node Red code is HERE