Nov 23, 2009 0
How Power Door Locks Work – Keyless-entry Remote Control
Ever wonder how that ‘twit–twit’ door locking mechanism (keyless-entry remote control) in your car work? I did… This post is inspired by a someone who stupidly thought that you can unlock a car with the key (unlock) miles apart by using a cellphone! Yeah, how dumb is that?! Imagine you lock your car keys inside you car and the spare key is in you house several miles away. You then asked your wife to call you and ‘twit-twit’ or unlock the car by using the cellphone. He hopes that the sound will be loud enough, coming from the earpiece of the phone, to unlock the car!
Of course it doesn’t work that work that way. By inspection you’ll instantly know that it has something to do with RF or radio frequency. Let’s read more shall we?
