ChipKIT Max32 NEUBIE question

Created Thu, 03 Dec 2015 21:26:08 +0000 by gijoevaldez

gijoevaldez

Thu, 03 Dec 2015 21:26:08 +0000

I'm interested in working with the ChipKIT Max32 because of its speed, Number of I/Os, and Memory. All awesome!

As I'm reading I see that the output voltage is 3.3v. So that led me to try and find some some relays that would work.

I found a alot of 5vdc Relay Opto Isolators like: http://www.ebay.com/itm/Geeetech-5V-8-Channel-Relay-Module-With-optocoupler-compatiable-with-Arduino-/331721649327?hash=item4d3c26acaf:g:~BgAAOSw0e9UuNbn

but no luck in 3.3v.

I need to power some 24vdc and 120 vac controls and via a relay is most logical.

Any ideas?

Thanks,

-Angel California, USA :geek: :geek:

majenko

Thu, 03 Dec 2015 22:02:43 +0000

All you need is a transistor, a diode and a resistor. No need for anything fancy. The basic driving circuit for running a relay from an arduino works the same at 3.3v or 5v.

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gijoevaldez

Mon, 07 Dec 2015 17:11:08 +0000

Thanks for the info.