hi guys.
I'm very new to this electronic thing.
i bought a life size traffic light the other day, that runs off 220v.
i decided i wanted to automate it..
so I've just finished building a traffic light with 2x 555 timers.
connected to 3 led's and 3 relays to switch on the big lights.
when i switch it on. all the led's come on, and stay on..
i have not connected the big lights to the relays yet.
so the LED's should change, and i should hear 'clicks' coming from the relays when the lights change color
i used a diagram i got off the internet, and some help from a local electronics shop.
i have used a 220v to 12v transformer, and a ad-dc converter and a L7809CV voltage regulator.
so the 2 problems im having: all led's stay on all the time
the voltage regulator gets quite hot..
thanx in advance for getting it all working... (hopefully)
.
I'm very new to this electronic thing.
i bought a life size traffic light the other day, that runs off 220v.
i decided i wanted to automate it..
so I've just finished building a traffic light with 2x 555 timers.
connected to 3 led's and 3 relays to switch on the big lights.
when i switch it on. all the led's come on, and stay on..
i have not connected the big lights to the relays yet.
so the LED's should change, and i should hear 'clicks' coming from the relays when the lights change color
i used a diagram i got off the internet, and some help from a local electronics shop.
i have used a 220v to 12v transformer, and a ad-dc converter and a L7809CV voltage regulator.
so the 2 problems im having: all led's stay on all the time
the voltage regulator gets quite hot..
thanx in advance for getting it all working... (hopefully)
.