I'm replacing my interior light with LEDs and I want to make them fade out when the door closes, but I'm having some trouble with connecting my 08M to the existing car wiring.
My interior light has 3 wires: +12V, GND, and Door (Door open = 0V, Door closed = +12V).
I also want to retain all the functionality of the interior light switch (ie ON, OFF, DOOR).
Existing light wiring:
I want to replace ONLY the 'Globe' part of the circuit with my Picaxe circuit. I already have a small 7805 (TO-92) and filtering capacitors on a tiny circuit board measuring 5cm by 2cm. Everything else is sorted, except for the input signal.
So how do I wire the DOOR signal to a Picaxe input to retain all existing functionality? I don't have room to use any more chips so I'm limited to just surface mount components, and I have lots of resistors.
Can it be done?
My interior light has 3 wires: +12V, GND, and Door (Door open = 0V, Door closed = +12V).
I also want to retain all the functionality of the interior light switch (ie ON, OFF, DOOR).
Existing light wiring:
I want to replace ONLY the 'Globe' part of the circuit with my Picaxe circuit. I already have a small 7805 (TO-92) and filtering capacitors on a tiny circuit board measuring 5cm by 2cm. Everything else is sorted, except for the input signal.
So how do I wire the DOOR signal to a Picaxe input to retain all existing functionality? I don't have room to use any more chips so I'm limited to just surface mount components, and I have lots of resistors.
Can it be done?
Last edited: