At OpenEnergyMonitor labs we have been working on designing a unit that makes building an open-source energy monitor easier. We wanted a unit that is cheap enough for a small home monitoring system yet powerful enough for a large system. We also wanted it to be easy to install and small enough to look pretty!
Two months ago Trystan announced a software milestone with the release of emoncms. Today marks another milestone for us, a hardware milestone with the release of emonTx.
emonTx stands for Energy-Monitoring-Transmitter. It's a small wireless energy monitoring node designed to take inputs from multiple CT sensors, optically from a pulse-output utility meter and from multiple one-wire temperature sensors. It is designed to be powered by 2x AA batteries or 5V USB.
- Electricity consumption monitoring
- Renewable generation monitoring
- Heatpump monitoring
- Water and gas monitoring (from pulse output meter)
- Temperature monitoring
- Large scale monitoring - up to 26 emonTxs can potentially transmit to a single base station
|emonTx PCB with bare minimum of components |
for single channel CT monitoring
|The unit has been designed to fit nicely in a case|