Automate Two Light Switches (Home) w/ One Device


Want to integrate 2 light switches with your home automation setup? One way to do this is to replace both light switches with smart switches . Smart switches can be pricey, however, and so there’s another means of converting two light switches in an electrical box into smart switches.

Just as a smart relay can help you convert a single light switch into a smart switch , a dual smart relay does the same with two output circuits. In other words, a dual smart relay like the Shelly 2.5 can control and monitor two separate lights or other switched devices that share an electrical box. Once set up on the Shelly app, you will then be able to control your lights or other electrical circuits using Alexa or another voice assistant.

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Contents

Your Home “User Experience”
How To Install The Shelly 2.5 Dual Smart Relay To Automate Two Light Switches
How To Setup The Shelly 2.5 On Your Network
Where To Get Shelly Devices
Additional Information

Your Home “User Experience”

One thing I really love about the Shelly 2.5 is that it helps you to maintain the “default” functionality of the light switches in your home. Here’s what I mean by that:

You’ve lived in your house for a while
When you walk in a room, you flip a light switch to turn the lights on
The lights turn on
Maybe you want to turn the lights off, so you flip the light switch again
The lights turn off

With some smart home devices, including some smart plugs and smart lights, the device becomes an additional switch in series with the light switch. With devices of this type, you have to turn on the light switch and turn on the device .

Additionally, if someone turns the light switch off that powers the device, you won’t be able to turn the device on at all . These factors can render the “user experience” within your home somewhat unintuitive, and can lead to less-than-ideal behaviors like taping off light switches.

How Is The Shelly 2.5 Different?

The Shelly 2.5

With a Shelly 2.5, you won’t have the problem described above. The Shelly 2.5 has ports to accept inputs from your existing light switches. With this feature, Shelly 2.5 is able to seamlessly control the lights in your smart home either through your home automation or through the existing light switches. You’ll be able to automate two light switches without breaking the existing functionality.

About the size of a small box...

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