07-18-2021, 08:24 PM
(07-18-2021, 04:52 PM)Ride154 Wrote: Or is there a way to hook it up to my 14.4V car audio fusebox?
And somehow stepdown to 5V
Yes, there is---more than one, actually.
One possibility is to get a bucking-type converter which takes the auto supply voltage and "bucks" it down to 5v DC. DROK is one brand I happen to know about but there are many others.
Another is to get an inverter which takes the auto supply voltage and "inverts" it to 120v or 240v AC (nominal). Then a normal Raspberry Pi AC power pack can be used to convert this to 5v DC.
The latter scheme sounds crazy but I've done it when I had a temporary need and had a inverter gathering dust on the shelf where my significant other's son had left it when he went to college.
I'm sure others can suggest more possibilities.
I'd recommend that in all cases the attachment be made on a line which switches off when the ignition is turned off. Otherwise you might suffer the ignominy of needing a jump start if and when the battery is drained so far that the engine can't be restarted from it. (Don't ask me how I know!)
Another consideration is that auto electrical supply is notoriously noisy (and so is the usual inverter), so extra filtering may be required at the RPi power-input end of things.
Glad to hear you are dry. I've been in the Amsterdam/Rotterdam/Delft triangle a number of times but never made it over to the coast. Many, many decades ago, I lived for a time in Wiesbaden, Germany. The images of the flood damage in areas west of there make me sad.
Regards,
Kent
