[Cialug] Raspberry Pi 3

[Dave Weis]

What does the jumper on the right do? I bought a knock off 4 relay version
and was worried to move it.
On Feb 29, 2016 8:39 PM, "Jeffrey Ollie" <jeff at ocjtech.us> wrote:

> On Mon, Feb 29, 2016 at 7:53 PM, Zachary Kotlarek <zach at kotlarek.com>
> wrote:
>
> >
> > If you’re confident you garage door will never put out something harmful
> > on the signaling line you can interface it using a fairly simple
> > transistor-based circuit. But you shouldn’t. Those 3.3v electronics are
> > sensitive and a relay that will protect you is cheap. You can get
> > solid-state relays that will trigger directly on logical-level outputs
> from
> > the Pi and get both simple circuit design/construction and lots of
> > isolation.
> >
>
> This is the relay I'm using:
>
> http://smile.amazon.com/dp/B0057OC6D8
>
> --
> Jeff Ollie
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