hope you all don't mind if i ask many question and request for guidance for my project i am new bee beginner to arduino and electronic. with some rusty skill in computer programming.
i want to create a project to my car. i want to install led lighting to the car but i do not want to touch the car wiring and electronic whether hot tapping or plug-in into it.
my project is to create a sensor switch to detect engine vibration which in turn, turning on 12v relay (connected directly to car battery) to turn on the led lighting. the switch will be located in the engine bay, most probably near the radiator fan. later on with some programming i want the led light to only turn on after some specific time after the vibration/sound detected and to turn off after no vibration/sound detected.
i have been browsing thru ebay and saw many arduino board, arduino 12v relay and arduino sensor but do not know which to use.
so the questions are 1. which arduino board i should choose 2. which sensor module i should choose. piezoelectric or ceramic or microphone 3. can the sensor be stand alone or must come with its module. 4. should i use arduino 12v module or 24v for car.
some more question/s when i stuck. ;D
thanks you all.