Cost-Effective Energy Monitoring with the ATM90E26

If you’d like to monitor your home’s energy usage, there are several options out there. For something hackable, open source, and available at a low price, the ATM90E26 Single-Phase Energy Monitor Dev Kits from Whatnick look like an excellent solution.

The device takes the form of an ATM90E26 breakout board, which can be had for as little as $15. Some pledge levels come with a current clamp that can be placed around a lead going into your house or to an individual appliance in order to measure current without disturbing the connections themselves.

This monitor comes in the form of a circuit board, or even a DIN rail configuration, a format which will be familiar to electricians, and would fit in well in an industrial setting in addition to household usage.

Other options include the ability to interface with an ESP8266 module, or Adafruit Feather boards for monitoring capabilities. There’s also an option to work with a second phase, further expanding the device’s capabilities.

Interested in an ATM90E26 Single-Phase Energy Monitor Dev Kit? Whatnick’s crowdfunding campaign is currently live on Crowd Supply.