Good afternoon
I have a 4G router and sometimes I have to turn it off and on again because I have no internet.
Is it possible to do this procedure with a shelly?
The idea would be that whenever shelly was without internet, it would turn off the power and after some time it would automatically reconnect
Do you have any equipment that can do this?
Thanks
yes, the new Shelly Plus 1 / Plus 1PM is capable to do that with via ShellyScript.. (Firmware with scripting is currently in beta stage)
What the script needs to do: fetch an external Website somewhere from the internet and if unreachable (anything else except HTTP 200 status code) turn off and then turn on the local relay. For sure the 4G router has to powered from the Shelly relay.
I'll post a scritping example later this day.
Here's the script, it will monitor a router's internet connection by fetching a remote URL from somewhere in the internet and turn off the relay for a short time, so the connected router will be forced to restart.
It's required to configure an auto-on timer in the Shelly Plus 1 webinterface.
// a remote URL with just a few bytes of content in order to check if internet is still available.
// CONFIG START
let remoteurl = 'https://gist.githubusercontent.com/eurich/6e84e85c11401c4e28a2676492d846b7/raw/5d577bc2dfadfa13887f9b2ec146fe1b2ee2f5b6/gistfile1.txt';
// number of times the check is done before internet is considered as down.
let maxfails = 5;
// checks the internet connection every x minutes, recommended is 5 or more
let interval = 5;
// CONFIG END
// no need to change anything below this line.
let alertTimer = '';
let failcounter = 0;
function startMonitor() {
alertTimer = Timer.set(interval *60 * 1000,
true,
function () {
Shelly.call("HTTP.GET", {
url: remoteurl
},
function (res, error_code, error_msg, ud) {
if (error_code !== 0) {
if (failcounter === maxfails) {
print("Restart");
restartRelay();
failcounter = 0;
} else {
print("fail");
failcounter++;
}
}
},
null
);
},
null
);
}
function restartRelay() {
Shelly.call(
"switch.set",
{ id: 0, on: false, toggle: 2},
function (result, code, msg, ud) {
},
null
);
}
startMonitor();Thanks