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Use one from a phone with Voice Dialing function (like the old Nokia3310).yak103 said:Hi ....
I am wondering if someone can help me with my project ... actually i am planning to do sound recgonition circuit that store a special sound like police car alarm and recognize it within the circuit to control other devices ???
thanks
This really shows how stupid governments are. To put such a simple system in place that is just screaming to be hacked by someone with a 555 timer. You would have thought that they would have coded it somehow.Turns red lights to green. Full circuit, description, and legal penalties.
But if you're in an emergency vehicle, you want all lights to be red.HarveyH42 said:**broken link removed**
Turns red lights to green. Full circuit, description, and legal penalties.
Duhhh...philba said:actually ron, making the light red will cause people to stop and makes for congestion - people will go through green lights to get out of the way of an ambulance but most won't venture into an intersection with a red light showing.
Hero999 said:I've heard that some of the traffic lights are sensitive to the strobes on emergency vehicles any flashing your headlighs at them at the right frequency is supposed to work. I haven't tried this though as it might be an offence.