The YoMo (You only meter once) metering unit is designed for industry and researchers to create new energy system applications. YoMo can measure several electric quantities (active power, reactive power, etc.) and is able to switch appliances up to 20A
The whole design as well as the schematics and PCB design are publicly available and can be obtained at sourceforge page. The overall cost for the metering board are about 50€.
The YoMo metering unit supports a wide range of applications, ranging from single appliance metering up to monitoring the energy consumption of an overall household. The device supports different sampling frequencies suitable for long-term monitoring as well as highly dynamic processes.
Hardware & Software Design
Hardware Design and Coordination