He managed to build his own monitor using an Arduino. The trick of this build has to do with how the system works. The panel includes an LED light that blinks 1000 times for each kWh of electricity.

Learn how to build a WiFi-enabled Arduino Weather Monitoring System that reads temperature, humidity, pressure, air quality, and more using sensors like DHT11, BMP180, and MQ135. This hands-on project ...

The traffic light server monitoring system uses an Arduino microcontroller to interface with the Xymon server monitoring software. Xymon is an open-source tool that provides real-time monitoring ...