So I have a bit of a problem..
I have an ancient Sears garage door opener from the 70's, that has an electro magnetic relay to control the motor, and a thermal switch to keep the light on for approx 90 seconds. I have 2 openers, this Sears, and an old Overhead Door that has the same controls in it. My Sears opener's relay is failing (I have to press the button 3-6 times to get the door to start, but I can hear the relay clicking when I push the button.)
What I want to do is build a single PCB that can control the up, down, and stop functions of the motor, and also keep the light on for 90 seconds or better after the motor has stopped. (I would like to make this adjustable, but it's not required.)
I know I need 2 relays for the motor, a relay for the light, and some misc electronics. But I don't know what I need, or how to assemble this. I have schematics for both openers, so connecting them won't be a problem.
Written instructions as well as a visual schematic would be a big help.
Thanks!
I have an ancient Sears garage door opener from the 70's, that has an electro magnetic relay to control the motor, and a thermal switch to keep the light on for approx 90 seconds. I have 2 openers, this Sears, and an old Overhead Door that has the same controls in it. My Sears opener's relay is failing (I have to press the button 3-6 times to get the door to start, but I can hear the relay clicking when I push the button.)
What I want to do is build a single PCB that can control the up, down, and stop functions of the motor, and also keep the light on for 90 seconds or better after the motor has stopped. (I would like to make this adjustable, but it's not required.)
I know I need 2 relays for the motor, a relay for the light, and some misc electronics. But I don't know what I need, or how to assemble this. I have schematics for both openers, so connecting them won't be a problem.
Written instructions as well as a visual schematic would be a big help.
Thanks!