The bare bones system.
Will run on 2 alklines batteries.
Minimum voltage is 2.5v
-
On the TX side
$
0.50 Button
4.50 AVR T2313
0.50 IR LED
1.50 2xAA Battery holder
RX
0.50 Hit LED
3.00 AVR T13
3.00 TSOP34836 IR Rx
0.02 Resistor
1.50 2xAA Battery holder
Unfocused daylight range to be tested.
At night we should get 30-50m.
Note this system sends a full digital message.
Being micro controlled we can do ammo limits.
Variable damage etc.
Rather than sending the required number of pulses to get the receiver to respond.
If that was all we needed we could do it slightly cheaper but more components.
As used in this system
ww1.ucmss.com/books/LFS/CSREA2006/ICM4158.pdf
There would be a chance for false triggering though.
I did find another cheap deal, US$8 for a gun and chest plate.