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by martin_wien
Wed Dec 19, 2012 5:59 pm
Forum: HATs and other add-ons
Topic: how to sense 220v input -solved- I hope
Replies: 59
Views: 61755

Re: how to sense 220v input -solved- I hope

This "Optocoupler" is bigger than the RPi itself. I would use a solution similar to Mortimer at Thu Jun 28, 2012 1:24 pm, but still a little simpler. The LED is of course part of a ready made optocoupler. The current through the LED is sufficient with the integrated Pull Up in The RasPi or an option...

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