I am an amateur radio operator and I saw your product featured in QST magazine this Spring. I set up Software Defined Radios running on three of the Raspberry Pi’s.
I am using the WorkBenches to wall mount the radios. I want to take the left one to Ham Radio meetings after Covid is done.
I am using a nice smart USB power source. You can see a buck down converter on each platform. They will recognize RPi and Arduino and give the correct voltage and amps. They are only $5.99 on Banggood and I can’t find them in the US.
The things that look like dials are screws and washers. I hope to purchase some black cabinet screw / washer / black cap sets but it is low on my list.