Hornady hit indicator

So keep going? Sorry didn't relise you had a say in it.

That works out well.
Turns out your standard phone charging power bank battery puts out 5v.
So USB from the power bank to timer relay is plug in. That powers up relay.
From 2nd USB port on power bank,run a wire to com (common) on relay, and one from com to negitive on light.
The positive goes from battery to no (normally open) and no to positive on light.
That gave me light on for the length of the timer.
So was stoked with that.
Next will be add 2nd power wire from the 2nd USB port on the power bank to the positive on the laser and the laser receiver. A resistor that goes from 5v to 3v on both laser and reciever wires,after I split the wire coming from battery.
Then both of those will have their negitive run back to com.
From the alarm connection for the speaker it has, I'll get a step up circit from 3v to 5v, wire to that then from that to the trip connector on the relay.
That's the theory.
There is a nc (normally closed) connection as well. From what I can work out, nc runs power till switch trips then it goes to no. So I may be able to wire laser and reciever into that. That could power the laser reciever then switch it off while light is on. Will see.
The USB plug popped off the first relay,so seeing if that glues back on. Brought a spare so that was good.


Edited by kruzaroad - 19 Oct 2024 at 6:38pm

Looking good. I really wish I knew more about electronics.

Sweet the timer/reset switch arrived. It's way smaller than I expected. Which is awesome. Brought two of them, so had one spare.
22 bucks delivered for both.
That's 32 bucks so far.
Cheers Pauly for pointing those out.
Appreciated

Well been doing a few measurements and calculations.
Recon I'll drop this right down in size.
Been looking at diy laser trips on Web. Seems a laser pointer and few bits and bobs make a laser trip at 5v quite simply.
Still beyond me, so ill see about getting one made up.
But the paper work looks promising.