trail counter Help Answered
Ok I need some help. I am a trail steward on a local mountain bike trail. We want to make a counter so we can find out how many folks are using the trail. I thouhgt I had a good idea, but can't seem to make it work. I have access to a bunch of garge door photo sensors(neighbors a garage door tech), and a bunch of thoes pocket pedometers(got them from a manager of a Mcdonalds when they stopped giving them out). I have figured out how to make the pocket counters work as just plain counters thanks to another instructable (remove hammer, wire across with a switch or relay...). What I have not been able to figure out is how to use the garage door sensors to make the circuit work. All I need is for the circuit to make a relay close to act as the switch for the counter. I was able to do it with an LED emmiter and detector and it's circuit, but for soome reason I guess the garage door sensors have something inside their glued box that won't let it work with the circuit. Any ideas?