Materials: Micro-controller, Relay
Method: Use the micro-controller the trigger a relay and hold it open for a designated time to cut out car stereo and simultaneously activate warning message. When designated time is over have micro-controller close the relay to re-instate the radio.
A system has been created that is able to interrupt any audio device running through the car's speaker system and leave a designated pause (area in which message will be inserted). Verbal warning is still being designed and built, hopping to have final product ready for fair.
A basic prototype has been designed and improvements are steadily coming along. I plan to have a final market ready device within 12 months.
This experiment device that will alert motorist when an emergency vehicle is responding to a call in there area.
Science Fair Project done By Asher A. Williams