Well, im a newb to Arduino, confident ill pick it up allright though.
My plan is to build a fire alarm control panel, (uk type) google it for info on what they are and do. Anyway, im a bit stuck in this, and my electronics knowledge is good, but i want to be sure, as i dont want the fire alarm control panel to go on fire XD
Most fire alarm devices work on 12vdc, to a max of around 24vd. The arduino only outputs 5v (UNO) and i want to activate a relay so i can activate a sounder (12v).
My problem is though, how you stepup 5vdc to 12vdc, for the relay, ive read articles that use transistors etc but i want to be sure whats the best way to go.
An help is appreciated, and hope someone could possibly help.
Thanks in advance!