Polish home automation specialist Domatic has launched a crowdfunding campaign for GetWired, its family of Arduino-compatible RS485 wired home automation modules — complete with a dimmer, AC mains, and Ethernet gateway module.
Domatic's designs are based around the RS485 protocol and claim plug-and-play compatibility with a range of open source home automation platforms, including Domoticz and Home Assistant, while being programmable using the popular Arduino IDE. Prior programming knowledge won't be required, however, with Domatic claiming that its open source software can be configured by simply commenting out any functionality not required.
Built upon the Microchip ATmega328PB microcontroller running at 8MHz, the MCU module features support for firmware-over-the-wire (FOTW) in-place updating, a 12-pin interface for shield add-ons alongside six Molex connectors for external hardware, and electrostatic discharge (ESD) protection rated to 15kV on all interfaces.
Additional modules consist of a two-channel AC relay supporting 200W of sustained load and with integrated analog current sensor for remote power monitoring, a four-channel 12-30VDC lighting dimmer for white, RGB, and RGBW receivers, and a switchboard-mountable Ethernet gateway for network control of connected devices. Other shields described on Domatic's website include a heating shield, a DIN input shield universal I/O module, and an I²C multi-sensor module.
"We believe it’s high time that home automation enthusiasts all over the world be given the resources they need to assemble a proper wired home automation system. GetWired provides reliable hardware and easy-to-use software that will help you get the job done right.," the team
Full details can be found on the project's Crowd Supply page. Domatic's hardware designs are also available under the CERN Open Hardware Licence on OpenHardware.io, while the corresponding software can be found on GitHub under the GNU General Public License 3.0.