Internal Sensor: Si7021 (internal temperature & Humidity)ģ. Reports exact amount of energy (Wh) reported by utility meterīest used in conjunction with clip-on CT sensor(s)Ģ. Optional add-on sensor for interfacing directly with utility metersĬompatible with all utility meters with LED pulse output Up to 2x OHM Link can be connected to a single Buddy OHM RF Range is approximately similar to home WiFi and can be affected by obstacles e.g. Optional add-on if more then two circuits need to be monitored. 3 x AA batteries can be used to power the OHM Link, if AC power is Plug-in AC-AC adapter can be used to power the unit and provide an AC voltage sample for The OHM Link can monitor up to four single-phase AC circuits using clip-on CT sensors. Data is transmitted to an Buddy OHM via a low Requires pre-built SD card image (included)ġ X Clip-on CT sensors (can accept up to two CT sensors one is included as standardġ x AC-AC voltage sensor adapter (optional but highly recommended) Processing, logging and visualising energy and other environmental data, such as Local & remote data logging with Buddy cloud, our open-source web-app for Theīuddy OHM can also monitor temperature, and interface directly with utility meters via an The Buddy OHM can monitor two single-phase AC circuits using clip-on CT sensors. Simple installation where Ethernet or 3G dongle is available at the meter location. The Buddy OHM is an all-in-one Raspberry Pi based energy monitoring unit making for a The hardware options to set up a home energy monitor are as follows Hardware is based on the Arduino and Raspberry Pi platforms. The system is fully open-source, both hardware and software. These can be assembled and configured to work forĪ variety of applications. The system is made up of five main units.

The Buddy OHM system has the capability to monitor electrical energy use / generation,

Ohm open hardware monitor