Internet of Things Asked by longneck on August 23, 2021
I have a standard wall switch connected to an input on a Shelly relay, call it A. I have a second Shelly relay (call it B) across the house that has a light connected to the relay output.
Using the Shelly Cloud software, can the switch input on A control the relay on B?
Yes, just using the built-in local software.
Background: Shelly relays can be sent http commands to switch them on and off. This is documented at https://shelly.cloud/documents/developers/ddd_communication.pdf
First, on relay B, find the local network address of the device. This is in Settings -> Device Information, and will be something like 192.168.x.y where x and y are two numbers between 0 and 254. Make a note of these numbers.
Now, on relay A, go into Actions and find the "Button switched on URL" and "Button switched off URL" lines.
Enable these, and add a URL. It will be something like: http://192.168.x.y/relay/0/?turn=on to switch the other device on.
If you don't want relay A to change anything connected directly, you can change its button type to "Detached Switch"
Answered by jymbob on August 23, 2021
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