Several days have passed since my last post on the Home Automation System and we left a pending speech about the measurement of home consumption.
My prototipe works fine, so it's time to use it.
My final target is to build 3 power monitor, one for each floor. The first ready to use device is for the main floor.
I will plug the device where the main power cables arrive. So I plan to power on the 5V adapter for the ESP8266 and the PZEM-004T.
Here is the device linked to the main power cable and powered on:
Now, let's give a look to the MQTT messages, using mqtt-spy:
Perfect...all work as expected.
Now it's time for OpenHAB and Grafana.
I setup OpenHAB to get data as numerical variable, using the MQTT topic already defined. Then I edited my sitemap to view these data. Here is the result:
It's an interesting thing the comparison between production and consumption.
The last step is the visualization of historical data with Grafana, comparing production (green) and consumption (yellow):
Now, we just have to wait for other PZEM-004T...already ordered.