Final Version
Ok we have a final version now.
I've rerouted the circuit board. It looks like a dogs breakfast but it has a purpose. One PCB does all the jobs now. I can either populate it with through-hole parts, surface mount parts, the resistor is more easily accessible now so the timing is easier to customise. Or I can populate all the parts on the back and then cut along the line to make everything much smaller. No more buying multiple circuit boards. If you want a small version without battery then simply cut along the marked lines.
The pushbutton is now in the very middle.
Large version is on a 31x26mm circuit board and has 4x 3.5mm mounting holes.
Small version is 17x9mm, no mounting holes.
I still need to confirm the bill of materials but I estimate that this will come to around $10 + shipping if anyone wants one. I'm happy to assemble them it only takes a moment to put it together.
No case though, you'll need to figure that out yourself.
Who wants one and which one do you want?
|