subzero349
New Member
Sebi has posted the circuit I am using in the projects folder
I am trying to get a triac and optocoupler to turn on a light bulb (120Vac) when a bit from a microcontoller goes low...
If I put a capacitor across MT2 and MT1 the light is ALWAYS ON no matter what the microcontroller is...
If I don't put a cap across MT2 and MT1 the light is ALWAYS OFF not matter what the microctonroller is....
Any suggestions?
Any recommendations for triacs that are for 120Vac approx 8amps?
Please help! I've seen a lot of circuits that are all the same as Sebi's and they are supposed to work... but mine is not!!!
I am trying to get a triac and optocoupler to turn on a light bulb (120Vac) when a bit from a microcontoller goes low...
If I put a capacitor across MT2 and MT1 the light is ALWAYS ON no matter what the microcontroller is...
If I don't put a cap across MT2 and MT1 the light is ALWAYS OFF not matter what the microctonroller is....
Any suggestions?
Any recommendations for triacs that are for 120Vac approx 8amps?
Please help! I've seen a lot of circuits that are all the same as Sebi's and they are supposed to work... but mine is not!!!