This may be an XY problem. Why do you want to do this?
If siren dedector is hard to do I will try to make an strobe light based system. Thanks
May be I should start to learn to detect sound by microphone and filter by bandpass circuit. I searched but there was no source on this topic.
Hi again everyone I googled the strobe light's frequecy but there are many different information suc as 12Hz, 10-14Hz, <15Hz etc. Isn't there any standart frequecy value for emergency vehicle that use strobe light ? Thanks in advance to anyone who will advise.
Thirdly, at least in my local, yielding of right of way is NOT required. A motorist may continue on, at their pleasure, regardless of what an EV is trying to do, as long as that motorist would normally have right of way.
Side note on the use of Lights and sirens, On highways, EV's will only gain 3-5 seconds per mile running 'hot', and city driving they only gain about 10-15 seconds per mile, on average. The one report I read long ago, showed that running 'hot' only makes an actual difference in <.1% of calls. Of course, we never know if our next call will be that .1%, so we run hot.