Radiocontrolled Relay

Other Hardware Motors, Mechanics, Power and CNC
1

Hello!

I hope to be in the right section form my question:

I should control a relay which is not wirable directly to the arduino, because it is mounted on a rotating disk.
I though to use some sort of radio control so that arduino transmits the signal and the relay catches it in some way.

I found this: http://www.robot-italy.com/it/10a-radio-controlled-relay-battleswitch.html but I am not sure if it is what I need and I really don't know how to connect it to arduino.

To express again my idea, I need something that putting an arduino pin to 1 here, will switch on a relay there.

Thanks for helping

Mic

2

That relay appears to be servo-controlled, so an RC receiver could be directly connnected to
it. You would need an Arduino-controlled RC transmitter to communicate with it.

You need to check if it has sufficient current and voltage rating on the contacts for your load.

There are other approaches to this, such as IR or XBees/ISM modules, Bluetooth or even WiFi.

What range is needed?

3

The range is not much I just need about 3 meters max.

Consider that I already have a ethernet shield on my arduino, which runs a mini web server and a couple of relays already connected to it.

I'd like something that keep simple the coding part, something (if exists) that just want a pin to go high to control wirelessly the other relay

4

For 3m range you could try infrared Transmitter/Receiver method, like TV remote control. But without using the TV-Code, just Switch on the IR-Transmitter Diode by digitalWrite ( IRpin, HIGH );

The receiver Diode will recognise the Signal and could switch a transistor to power the Relais. No arduino or receiver needed on the receiver side.

5

Hi, how are you going to power the rotating disk mounted relay, and how fast is the disk rotating?
What is the relay going to control?

Tom... :slight_smile: