Raspberry Pi System
I am designing and building a Raspberry Pi (RPi) micro-computer system. I have acquired two RPi4b Single Board Computers (SBC) and will use one of them in my design.
My intent is to build the project in a small compact space. I chose a small but high resolution 10-inch display. The design is to 3D-Print a base to hold the screen in a viewable position and include the RPi and a 12/5 volt combined power supply in the holder base behind the screen.
The keyboard is wireless with a touchpad built in for mouse control.
Using a SBC and monitor usually involves a mass of wiring running in every direction and requiring considerable space. Two power supplies (wall warts) are required as the SBC is 5 volts, and the monitor is 12 Volts. If the voltages were the same there would still be two power supplies required.
I am not discussing or listing specific components as this is a very early work in progress. Subject to change if things don't turn-out as I expect.
Shown are the two candidate RPi4b's. The one with the fan is booting from a 125GB USB connected SSD. Fast start and fast data save. It has 2 GB of RAM. I received this RPi from friend Mike in Michigan. Thanks Mike!
The other is a passive heatsink (no fan) and boots from the 128GB SD card. It is slower in boot-up but has 8GB RAM.
In operation both are functionally the same. Presently nothing I do requires the larger RAM. My intent is to design a mount so I can use either RPi, and compare performance difference (if any). Only noticable difference now is the fan version runs 10 deg C cooler, but neither get hot enough to lower performance due to CPU throttling.
Transfer speed is a relative term, depending on the purpose or use. The USB/SSD is definitely the winner as a boot drive and application start-up drive. A USB/SSD boot drive would be a good future addition to the fan-less RPi.
The following pictures show my first attempt at designing a monitor stand. The PS and RPI will be installed on the rear tray area in separate 3D printed case components.
I will post more on this project as it progresses. I admit at this point it is one of those "Because I Can..." projects, and does not (yet) fill a specific need. Mostly I like "playing" with the LINUX operating systems and intend to find practical use for the SBC class of micro computers.
Much more is going on in this project. I have a deluxe manufactured case on order called the Argon ONE M2. More about that when I have it in hand. I am continuing to work on other RPi4b configurations. One fact is certain. They all will be booting and operating from SSD rather than the standard SD card. So much better performance.