I'm trying to build a homemade model rocket launch controller that's fun for kids to use. It will be made out of wood and have several fun (and probably unnecessary features) included and would like an electrical guru's advice.
I've attached a schematic of what I'm trying to accomplish and have acquired the Master Power, Arm and Test Switches. I'm still looking for an Interlock and a Launch Button and Voltage Meter. The LEDs have built in resistors.
My questions:
1) Does this schematic work?
2) How much do I have to worry about amperage ratings. I'm looking at about 9 volts at probably 8-10 amps for a very short period of time. The amperage will only be that high for maybe 2-3 seconds at a time. All I could find were AC buttons for 125V at ~3 amps. My instinct tells me that the short period of use would be fine.
3) Any idea where to find a good interlock? It would be awesome to have something professional looking like a key that could be attached to a lanyard and inserted nuclear missile style.
4) Same question for a launch button. Ideally, I'd like to find a 1-2" round red button.
5) Any ideas for improvement?
This is obviously an over complicated system, but kids love to flip switches. Who am I kidding? I'm 32 and I love to flip switches. Thanks in advance for everyone's help.
Submitted August 27, 2015 at 10:00PM by texas1982 http://ift.tt/1WUNC1K
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