Comments (9)
You have to be ultra careful here. Relays generate a super strong current when the magnetic fields collapse (AWESOME, right?), so hooking them up to an Arduino directly is bad juju.
You'd usually wire them though a set of Transistors, and they'd just be Digitial output devices :)
from johnny-five.
I've done some simple circuits with relays (and transistors, as @paultag mentioned) and just used board.firmata.digitalWrite( ... )
to activate/deactivate the transistor. I'm not sure a generic relay API makes sense, but maybe if you work with the lower-level code, you can share it and it will be more apparent what a relay API might look like.
from johnny-five.
Nice, thanks for the warning @paultag , i gonna follow what @rmurphey says, wathever i code, i will let you know guys.
from johnny-five.
Sure thing. I strongly suggest either two transistors set up as a Darlington Pair, or a single package TIP112 :)
from johnny-five.
@rwaldron I see this was marked as a feature, Is there a plan for relays? @rmurphey has a good point here.
from johnny-five.
@divanvisagie I was just waiting for the contribution to come in ;)
from johnny-five.
Ill start with this when im done with within.
from johnny-five.
Working on it here: https://github.com/divanvisagie/johnny-five/tree/relay
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Looks great so far :)
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