- Tue May 22, 2018 1:30 am
#199261
Hi,
I don't really feel like re-inventing the wheel in this case. Does anyone have a reference design to detect an open or closed 120VAC circuit using 3.3VDC GPIOs?
It seems to me like you could use a pullup resistor along with an opto-coupler to detect whether or not the circuit is open or not. I'd love to get a reference design that works and where all of the edge cases have been thought out.
Thanks
I don't really feel like re-inventing the wheel in this case. Does anyone have a reference design to detect an open or closed 120VAC circuit using 3.3VDC GPIOs?
It seems to me like you could use a pullup resistor along with an opto-coupler to detect whether or not the circuit is open or not. I'd love to get a reference design that works and where all of the edge cases have been thought out.
Thanks