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Spi relay pack

Posted: Mon Aug 15, 2016 8:30 pm
by keith
image.jpeg
So, I'm on my third relay pack, getting fed up with this, the starter relay seems to have failed again. Thinking of replacing the pack with 4 relays.

Anyone attempted this?

I was about to launch into it when I spotted 4 resistors & a capacitor?

Re: Spi relay pack

Posted: Tue Aug 16, 2016 10:15 am
by keith

Re: Spi relay pack

Posted: Tue Aug 16, 2016 11:55 pm
by woody
Here is a diagram showing the operation of the pack

Re: Spi relay pack

Posted: Wed Aug 17, 2016 1:22 pm
by keith
Woody, thanks, you are a legend!