Part of the openenergymonitor.org project
Main emonTx V2 documentation: http://openenergymonitor.org/emon/emontx
Main emonTx V3 documentation: http://openenergymonitor.org/emon/modules/emonTxV3
The emonTx firmware is released under the GNU GPL V3 license
The documentation is subject to GNU Free Documentation License
The emonTx hardware designs follow the terms of the OSHW (Open-source hardware) Statement of Principles 1.0.