[aprssig] DC Power Pole to USB for Pi 4 computers

Steve Dimse steve at dimse.com
Thu Mar 25 09:04:05 EDT 2021

You guys are way overthinking this. Assuming you know which end of the soldering iron to hold it is easy to make your own, you just need to feed 5v into pin 2 and/or 4, and ground (pin 6 and others). Buy a 3A buck converter module for a couple dollars from EBay, dig some scrap perf board and a few Dupont sockets from you junk bin. You only need two connections but I socket at least four pins at each end for support, and sometimes use a full 40 pin socket if I'm connecting other stuff like I2C or some GPIO, I also throw in a two screw terminal module for the input for better strain relief. 10 minutes and under $5 even if you have no junk bin. I've used several of these setups 24/7 for years for my data acquisition system and never had a problem. Just be sure to set the voltage before you connect up the Pi, the buck converters default to max voltage!

Steve K4HG

> On Mar 24, 2021, at 4:05 PM, MJ Inabnit <ke6sls at arrl.net> wrote:
> Looks like a whole lot of folks are trying to find a nice tidy Power
> Pole power adapter to supply power to Raspberry Pi 4's.  I know there
> are many small companies building neat stuff like mini-APRS rigs.  So is
> anyone building a Power Pole power supply for the Pi's yet?  Any good
> tips or links would be very welcome as I plan to move my APRS and packet
> systems to a new Pi 4 in the near future.  All my gear is using the
> power poles and the rigrunner/MFJ power pole dc distribution boxes.
> Thanks all!  73
> Jaye ke6sls
> -- 
> wishing you well
> Jaye, ke6sls--via the toshiba w/thunderchicken
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