It's an example of how to build with and arduino nano and a ethernet module, a switch that can be controlled via lan.
The electronics:
Default IP address of the device is http://192.168.5.2 and will return a JSON string with the uptime and relays' status. There is no configuration process, just change the IP address for the one desired in the code.
| URL | Action |
|---|---|
| http://192.168.5.2/?status1=ON | Activate Relay 1 |
| http://192.168.5.2/?status1=OFF | Deactivate Relay 1 |
| http://192.168.5.2/?status2=ON | Activate Relay 2 |
| http://192.168.5.2/?status2=OFF | Deactivate Relay 2 |
The JSON return has the following format:
{
'uptime':'1',
's1':'ON',
's2':'OFF'
}uptime is in seconds. s1 and s2 can assume ON or OFF values, depend on the status of each relays.
You can read the article on my blog to more details and the schematics.
Here you can find a video with the full tutorial:
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