GetWired

by Domatic

A complete solution for easy-to-use and affordable wired home automation

View all updates Mar 12, 2020

MQTT Support, Future Modules, and a Funding Goal Reduction

by Jakub Kazibudzki

GetWired & MQTT

You know that thing where you’re desperate to delve into some project but it keeps getting pushed back by more urgent priorities? So it was with MQTT support for GetWired. But we finally found some time for it last week, and we’re happy to report that it works! A few small changes to our software, and GetWired modules now speak MQTT – one of the most popular IoT protocols.

Why does this matter? Because it opens up a whole new realm of possibilities. Remember when we wrote in a previous update that you can only use one home automation controller at a time? Well, with MQTT, that is no longer the case. Modules can now be controlled simultaneously by as many controllers as you want. So if you do not yet know whether to go with Domoticz or Home Assistant (or some other controller), you can now test them all at the same time.

And, of course, MQTT is capable of much more than that. We still have to carry out more tests, but theoretically it should give us:

  • MQTT firmware updates (which are easier than regular FOTW updates)
  • Direct communication between modules connected to different gateways
  • The ability to connect an MQTT gateway to a controller on a different network

Definitely powerful.

Features We Plan to Add in the Future

GetWired is about far more than just the modules that we are making available through our current campaign. We have a lot more ideas, some of which we are already testing, and some of which still live on the computer screen. Those products might very well show up in future crowdfunding campaigns. Let’s have a look!

4RelayDin

This was actually one of our first published projects. 4RelayDin features electromagnetic relays with independent current sensors on each channel. It is capable of handling high loads and can be mounted in a distribution box. The version available at openhardware.io uses 10 A SPDT relays, and we’ve also developed a version with 16 A SPST-NO relays for higher loads.

Heating Shield

Heating control is a very important duty of every smart home, and it is vital that it be done properly. Accordingly, we developed a dedicated Heating Shield with eight solid-state relays (SSRs) to control valves on heating sections. The hardware itself is designed for safety, with an on-board temperature and humidity sensor. SSRs should be more reliable than electromagnetic relays and are also capable of handling more sophisticated control algorithms. The software has two modes of operation:

  • Autonomous, in which the heating controller is independent from the main home automation controller. It gathers temperature data from sensors on the RS485 network and decides which section should be active by comparing gathered values with defined set points
  • Controller-dependent, in which the controller just listens to orders from the main home automation controller.

I/O Shield

Even in a decentralized architecture, it is sometimes necessary to use some centralized inputs and outputs. Our I/O Shield makes this possible by allowing for powerful integration on the electrical level. It is particularly useful when integrating a third-party security system. One shield gives you eight insulated inputs and eight insulated outputs with enough current to control electromagnetic relays.

Sensor Shield

Smart homes are all about reacting to stimuli from a changing environment, which is why we have also developed a Sensor Shield to serve as the eyes and ears of every GetWired smart home. It features many different sensors, including a temperature & humidity sensor, a motion sensor, an ambient light sensor, a proximity sensor, and a door and window sensor. It can be used either as a shield or as an I²C extension for the MCU Module.

Reducing our Funding Goal

We have determined that, with the backing we’ve already received, we will be able to manufacture and deliver GetWired. And we are highly motivated to do so. As a result, and in consultation with Crowd Supply, we have decided to reduce our funding goal to $5,000. This means that those of you who have backed our campaign – or who back it over the next week – will receive your GetWired boards. Thank you for your support!

About the Author

Jakub Kazibudzki


$7,606 raised

of $5,000 goal

152% Funded! Order Below

Product Choices

$130

GetWired Basic Bundle

Everything you need to get started: one GetWired Ethernet Gateway, one GetWired 2SSR Shield, one GetWired RGBW Shield, and two GetWired MCU Modules, all fully assembled


$250

5x Shields, 5x MCU Modules, and an Ethernet Gateway

The full set. One GetWired Ethernet Gateway, five GetWired MCU Modules, three GetWired 2SSR Shields, and two GetWired RGBW Shields, all fully assembled


$43

GetWired 2SSR Shield & MCU Module

A ready-to-use kit containing one GetWired MCU Module and one GetWired 2SSR Shield, both fully assembled


$48

GetWired RGBW Shield & MCU Module

A ready-to-use kit containing one GetWired MCU Module and one GetWired RGBW Shield, both fully assembled


$50

GetWired Ethernet Gateway

A single GetWired Ethernet Gateway, fully assembled. Essential for most home automation installations!


$22

GetWired MCU Module

A single, fully assembled GetWired MCU Module


$19

Programmer, Adapter, and Wires

Essential for flashing your MCUs! A single USBasp v2.0 programmer, a custom adapter for GetWired MCU Modules, and some wires.

Credits

Domatic

We are technology enthusiasts who have long been interested in DIY home automation systems. GetWired is our first project. It was inspired by the experience we gained, over the past several years, while pursuing that interest. We are excited to share it with other hobbyists and smart home fanatics in the hopes that it will help them build their own safe, reliable, privacy-friendly, wired home automation systems.


Jakub Kazibudzki

Sławomir Kiwała


JLCPCB

PCB Manufacturer

Microbotic

SMD & THD assembly, parts sourcing, and coordination

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