Hello
this seems like a great and knowledgeable forum. I've searched around, but I think the circuit i need to construct is different from most "delay" circuits. What I need is a essentially a switch that, once pressed, will not be able to close the circuit for another 2-4 seconds. I can't imagine needing more than some capacitors, resistors, maybe a relay or transistor.
some background, all I'm really doing is wiring tape switches to the inputs for a stopwatch. I'm really good at soldering, thats no issue. My friends and I are downhill skateboarders, and the problem is our two axles will either stop or reset all the stopwatches I've found because of the second "press" from our rear wheels. I don't want to interface them [the tape switches] to my computer and use software, because out in the 'wild' i won't have a timing system without power for my computer.
I imagine 3-5 volts would be the momentary voltage, it if matters that much. If i need i can go get a stopwatch, solder in some leads, and check for sure.
the best idea i have so far, is to wire the stopwatch to the NO/COM on relay, and wire the tape switch with its own power source to the coil. then, Would a resistor and a big enough capacitor on the tape switch side do the trick (by taking time for the cap to charge to close the circuit in the relay again), but i know i'm missing something as the tape switch would be an open circuit so the cap wouldn't charge. I really don't construct my own circuits, more repair and modify existing ones. any help is greatly appreciated.
this seems like a great and knowledgeable forum. I've searched around, but I think the circuit i need to construct is different from most "delay" circuits. What I need is a essentially a switch that, once pressed, will not be able to close the circuit for another 2-4 seconds. I can't imagine needing more than some capacitors, resistors, maybe a relay or transistor.
some background, all I'm really doing is wiring tape switches to the inputs for a stopwatch. I'm really good at soldering, thats no issue. My friends and I are downhill skateboarders, and the problem is our two axles will either stop or reset all the stopwatches I've found because of the second "press" from our rear wheels. I don't want to interface them [the tape switches] to my computer and use software, because out in the 'wild' i won't have a timing system without power for my computer.
I imagine 3-5 volts would be the momentary voltage, it if matters that much. If i need i can go get a stopwatch, solder in some leads, and check for sure.
the best idea i have so far, is to wire the stopwatch to the NO/COM on relay, and wire the tape switch with its own power source to the coil. then, Would a resistor and a big enough capacitor on the tape switch side do the trick (by taking time for the cap to charge to close the circuit in the relay again), but i know i'm missing something as the tape switch would be an open circuit so the cap wouldn't charge. I really don't construct my own circuits, more repair and modify existing ones. any help is greatly appreciated.
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