Hi.
I'm new to programming and i have a need to work out usart.
Im looking to build a new alarm siren for my car which now has fishes swimming in it. New ones are no longer available and second hand ones are very rare so i thought i would build one.
Ive traced the circuit in the alarm to the main cpu which is a cop8788 and worked out by hours of probing that the signal is usart with a 1.2k baud rate.
There are 6 different signals transmitted to the siren.
Unarmed
armed
triggered
lock
unlock
unlock driver door only
Each of these inputs gives off a different frequency to give different chirps.
Is all possible with a arduino.