Obtain the supplies below.
- Arduino MKR WiFi 1010 (or something of the sort)
- 3 male to female wires
- DHT11 sensor
- Serial port nodes
- Dashboard nodes
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Step 1: Upload Code to Arduino
Type in the above code and upload it to your Arduino.
Step 2: Set Up the Flow
Layout the following nodes:
Serial input > function > gauge.
The debug nodes are for troubleshooting.
Step 3: Set Up Function
Type in the above code to the function in your flow.
Step 4: Finish
If you did all of this, you should see a gauge that displays the amount of hot water left in your hot water tank in percent form.