DCI1C - DTMF Control Interface Kit

[Gundy]

Is it possible to get a “momentary on” from the relays?
I want to power a solenoid but I don’t want it to stay on. I just need a “pulse”

Thanks,
Darrin

[Gundy]

I figured it out my self…
I am using a 555, one-shot monostable oscillator. A very simple circuit to build. I even found a calculator to figure out how long you want the “pulse” to be.
To see all the modifications I made go to
555 page

I wish…
You could choose to make the relays in the kit stay on or just stay on as long as you hold down the “1” button.

I do love the kit and I am having great fun with it.

Thanks,
Darrin