A low power wireless energy monitoring node. It's designed to sense data from multiple CT current sensors, optically from a pulse-output utility meter and from multiple one-wire temperature sensors. It can be powered by 2 x AA batteries or 5V USB. Features and hardware details.
The emonTx is based on the Atmega328 8-bit micro-controller and is fully compatible with Arduino IDE. A 5V FTDI to USB cable is required for programming.
The design is based on the JeeNode. It's fully open-source and is designed for easy expandability and compatibility with JeeLabs plug-shields.
Illustrated Port Map:
See emonTx Reference Section for more port mapping info:
Thank you to Robert Wall for this diagram.
Build an emonTx (kits available in the Shop)