YoMo - The Arduino based Smart Metering Board

TL;DR

This paper presents YoMo, an open hardware, Arduino-compatible smart meter platform that enables flexible, low-cost energy measurement for smart grid applications, supporting various loads and offering accurate data collection.

Contribution

It introduces a novel, open hardware smart meter design compatible with Arduino, capable of non-intrusive measurement, load switching, and variable sampling for diverse applications.

Findings

Measurement accuracy is sufficient for loads from a few watts to five kilowatts.

The platform supports non-intrusive installation via current transformer.

Flexible hardware options from microcontrollers to single-board computers are compatible.

Abstract

Smart meters are an enabling technology for many smart grid applications. This paper introduces a design for a low-cost smart meter system as well as the fundamentals of smart metering. The smart meter platform, provided as open hardware, is designed with a connector interface compatible to the Arduino platform, thus opening the possibilities for smart meters with flexible hardware and computation features, starting from low-cost 8 bit micro controllers up to powerful single board computers that can run Linux. The metering platform features a current transformer which allows a non-intrusive installation of the current measurement unit. The suggested design can switch loads, offers a variable sampling frequency, and provides measurement data such as active power, reactive and apparent power. Results indicate that measurement accuracy and resolution of the proposed metering platform are sufficient for a range of different applications and loads from a few watts up to five kilowatts.