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- 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: 66752
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...