This short video is from the final testing and photo shoot for the Star Laser Force pack. I used a flashlight to "shoot" the pack and score points.
Interestingly, you can't just shine bright light on the sensors to set it off; it has to be a pulse. With my hand on the switch the "pulses" were about 200mS. If you step through the video you'll see there is an additional delay of about 200mS before the first visible response. This filtering of ambient light sources was all done with discrete components and a couple of 74LS132 Schmitt trigger ICs.
Regrettably none of my videos have sound, so I've lost my chance to record the "boom" or hit sound. It's nothing, really, just a discrete noise generator circuit that was meant to sound like a gunshot. If I had to build a replacement "boom" sound board tomorrow I'd probably use a 76477 sound chip. The results would sound about the same.
