Posted December 13, 200816 yr So here I made a cell-phone triggered circuit for fun that basically gets triggered by a cell phone. You call the cell phone, it rings, and sends out a signal to a circuit. This is very useful for various shit like launching a rocket (which I've already done), launching off fireworks, opening your garagedoor, turning on a webcam, and jihad jihad kaboom kaboom anyone? The phone I used was a $10 disposable phone that I got from Wallmart. Edited December 13, 200816 yr by twolvesfan624
December 13, 200816 yr A cell-phone triggered circuit that gets triggered by a cell phone! You must be some kind of electrical engineering graduate who graduated with an electrical engineering degree!
December 13, 200816 yr Author A cell-phone triggered circuit that gets triggered by a cell phone! You must be some kind of electrical engineering graduate who graduated with an electrical engineering degree! Close, but no cigar. I'm a freshman electrical engineering student.
December 13, 200816 yr A cell-phone triggered circuit that gets triggered by a cell phone! You must be some kind of electrical engineering graduate who graduated with an electrical engineering degree! This doesn't require that much skill. Just have to know your basic circuitry and wiring.
December 13, 200816 yr its a tiny timer circuit connected in parallel with the ringer device on another phone, 10 minutes of work with a voltmeter
December 14, 200816 yr Author Myriad;599253']its a tiny timer circuit connected in parallel with the ringer device on another phone' date=' 10 minutes of work with a voltmeter[/quote'] No need for a timer circuit, just taking the speakerphone lead wires and hooking them up with either a thyristor or transistor.
December 14, 200816 yr No need for a timer circuit, just taking the speakerphone lead wires and hooking them up with either a thyristor or transistor. Wouldnt you want the timer hooking into an power amp?
December 14, 200816 yr Author Myriad;599262']Wouldnt you want the timer hooking into an power amp? You don't need a timer. The LED blinked at the frequency of the ringtone, so if you decided to pick a solid tone ringtone, it would stay lit. You just hook up the speakerphone lead wires into a thyristor gate, which would allow current to flow from the anode to the cathode in the thyristor, even after you stopped sending voltage to the gate.
December 14, 200816 yr You don't need a timer. The LED blinked at the frequency of the ringtone, so if you decided to pick a solid tone ringtone, it would stay lit. You just hook up the speakerphone lead wires into a thyristor gate, which would allow current to flow from the anode to the cathode in the thyristor, even after you stopped sending voltage to the gate. Maybe in a few more semester you will see what I mean.
December 14, 200816 yr In my EE class we just got done building a robot :) i got 92 percent on mine haha.. Each of us in the class were supplied with a robot kit and a speedy-33 board plus a daughter board ( included in robot kit) my robot traversed the obstacle course in 1 min and 40 secs woot ! ill post up pics later on, once i get to that pix part in my lap report.
December 14, 200816 yr Each of us in the class were supplied with a robot kit and a speedy-33 board plus a daughter board ( included in robot kit) Now do one from scratch
December 14, 200816 yr Myriad;599283']Now do one from scratch I am not capable of doing that at this moment sir. I am only a freshmen. I am looking forward to EE. here it is :) http://i60.photobucket.com/albums/h5/crashboss007/img202.jpg idc how it looks cause i just dc...i got a 92 percent on it for being creative and it got the job done.
