Hello everyone.
I have a small machine shop in my garage, two small lathes.
One of the machines feed parts to itself, everyone knows that a E-stop is a normally closed circuit, when the E-stop is pressed the circuit is open and everything stops. I have a toggle switch that measures how far the part to be machined is sticking out before it gets cut, acting like a E-stop. If the part is out to far, the machine will stop.
So what I'm looking for is a device that will wirelessly notify me when the E-stop has been tripped, so I know that the machine is off. By way of a small light or sound.
The voltage through the E-stop is 2.3v.
And range needs to be about 200ft.
Any help would be great.
Thanks, Bob
Does the whole area have WiFi access?
Yeppers.
If it could notify Alexa that would work also.
Would something like this work. The example uses a motion sensor, but you could modify it to suit your setup.
If this sounds complicated, that is because it is complicated. You have to work around the restrictions imposed by the phone manufacturer using what is essentially a hack.
I'm trying to stay away from the phone.
I found this. Would it be possible to send the alert to a Arduino with a light or sound instead of my phone?
This question is asked so often I don't understand why they don't make the keyfobs as a PC board with switch inputs, but here:
That keyfob is a transmitter. Wire one of the switches to your toggle.
There's a matching receiver that goes with it. For under $15 you have a working transmitter/receiver system that can do the notification.
There are other ways but this is probably the simplest.
[edit]
I forgot about ESP-NOW. With just two ESP8266 or ESP32 boards you can easily set up a wireless connection between them where a switch input on one board is transferred to an output on the other board. ESP8266 boards especially are pretty cheap: can get 6 for $18 on Amazon.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.