So, I'm replacing my head unit with a raspberry pi4 and a touch screen.
I plan to have a switch for running it off the car battery without a key. and some type of warning system to say if the battery is getting too low to start the car. The car would supply 12V 15 A on accessorie and 10 A without a key.
This will be place under a speaker so I'd like the noise to be minimal.
The pi4 needs 4.75 - 5.25 V and the ability to use 3 amps but I doubt it'll constantly use 3 amps. Since, typical bare bored uses 600mah, and I'll only be using a hifi hat and sometimes a BLE keyboard/touchpad(incase my screen doesn't work well).
The screen I'll be using would take 12V and 1.5 A. I assume I'd want a current limiting for this.
and I've been reading about buck converters for the step down powering the pi4.
Is there something else I should look into?
First post here:
Is it against the rules to ask someone to design a circuit board for me?
I plan to have a switch for running it off the car battery without a key. and some type of warning system to say if the battery is getting too low to start the car. The car would supply 12V 15 A on accessorie and 10 A without a key.
This will be place under a speaker so I'd like the noise to be minimal.
The pi4 needs 4.75 - 5.25 V and the ability to use 3 amps but I doubt it'll constantly use 3 amps. Since, typical bare bored uses 600mah, and I'll only be using a hifi hat and sometimes a BLE keyboard/touchpad(incase my screen doesn't work well).
The screen I'll be using would take 12V and 1.5 A. I assume I'd want a current limiting for this.
and I've been reading about buck converters for the step down powering the pi4.
Is there something else I should look into?
First post here:
Is it against the rules to ask someone to design a circuit board for me?