I have built this tile circuit to test the hysteresis potential for turning on an LED and eventually a 110V AC socket with an LED light bulb(albeit dimable.)
After adjusting the 2k pot for the desired light sensitivity I still had trouble getting the LED to turn full on or full off. There are areas of light that make the LED on only partially.
Any clues as to what may be causing this?
Also: what would be the best isolation for interfacing this circuit with a socket with AC mains voltage...Opto > TRIAC?? Wait, I have a few SSR's...that should do it.
After adjusting the 2k pot for the desired light sensitivity I still had trouble getting the LED to turn full on or full off. There are areas of light that make the LED on only partially.
Any clues as to what may be causing this?
Also: what would be the best isolation for interfacing this circuit with a socket with AC mains voltage...Opto > TRIAC?? Wait, I have a few SSR's...that should do it.
Last edited: