Re:How we built a Smart Office system based on Raspberry Pi
by ubercow on Saturday October 22, 2016 @09:47PM
(#12771440)
Anyone know what boards they are using for their relay controllers?
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Re:How we built a Smart Office system based on Raspberry Pi
by g_hajdukiewicz on Sunday October 23, 2016 @07:11AM
(#12773006)
We designed our own, simple ones having MCP23017 (https://goo.gl/S4i9Gw) as the GPIO expanders and some popular optocouplers to provide proper isolation level. I can't remember which exact part was chosen for the isolator, but this one should work like a charm https://goo.gl/GS6twt.