SparkFun Forums

[TRiAGE]

Hi everyone,

I'm new to arduino but have been soldering electronic projects for many years. I was wondering if anyone has recommendations for controlling 110 volt power without resorting to cutting wires, bare soldering relays etc?

I can see there are a few products on the market like the Powerswitch Tail (currently sold out), does anyone have any experience with these? ControllerX looks like a new option (http://www.reversepr.com.au/2017/06/24/ ... rt-switch/), any thoughts on that design?

Is there a fully FCC compliant product available? What safety features are people building into their high voltage relay circuits for piece of mind?

Thanks,
TRiAGE

[jremington]

Consider an IoT relay: (also currently out) https://www.adafruit.com/product/2935

[TRiAGE]

Does anyone know why these products are sold out? Is demand really that high or is there some problem getting them pulled off the market?

[jremington]

There are really no major safety issues connecting a solid state relay (SSR) to an Arduino, as long as you select one with adequate ratings and a "3 to 32" V input, which means the optoisolator LED has a series resistor. Just connect the relay + input to an output pin, and connect the grounds. 1500 volt isolation!

With a proper enclosure you are good to go. I've been using them on 220 VAC well pumps and hot tubs for years with no problems.

Example http://m.ebay.com/itm/272233533801?_trk ... mwBanner=1

You will find an SSR in the products you have been looking at.