Selecting the right cases for your TX-Pi setup
The Raspberry Pi
You start by selecting the correct case for the Raspberry Pi itself. The TX-Pi supports all Raspberry Pi versions with the long 40 pin GPIO connector. This includes the Raspberry Pi2, Pi3 and Pi4.
If you have a Raspberry Pi2 or Pi3 get your case here. If you have a Raspberry Pi4 (the one with the two blue USB connectors) get your case here. Some Pi cases have additional slots for the flex cable of the Raspberry Pi camera. If you plan to use the cameras use select one of these.
Below is an example of a Raspberry Pi4 in the matching case:
Choose the Raspberry Pi case from:
If you are planning to use a TX-Pi HAT to power the TX-Pi from a fischertechnik power source and to get access to fischertechnik compatible IOs then you need to select the case for the HAT next. If you don't plan to use a HAT then go ahead with the display case selection.
As visible in the image of the Pi4 above the USB and Ethernet connectors protrude from the Pi's case somewhat. This needs to be taken into account when selecting a HAT case as the HATs case need to provide the correct cutouts to accomodate the USB and Ethernet connectors of the Raspberry Pi below. Thus different bottom shells for the HAT case exist for the Raspberry Pi2/3 or the Raspberry Pi4.
Below is an example of a Raspberry Pi4 with a HAT on top:
Pi4 with HAT
Choose the HAT case from:
If you are using a Display directly on top of the Raspberry Pi without a HAT in between the display case needs to have the right cutouts to accomodate the USB and Ethernet connectors of the Raspberry Pi directly underneath. Therefore different bottom shells for the displays exist.
Below is an example of a Raspberry Pi3 with a 3.5 inch waveshare display directly on top:
Pi3 with display
If you are using a HAT in between the Raspberry Pi and the display then you may choose a bottom shell for your display without any cutouts for the Pi.
Depicted below is a Raspberry Pi3 with HAT and 3.5 inch display:
Pi3 with HAT and display
And here's a similar setup based in a Raspberry Pi 4:
Pi4 with HAT and display
Since the Raspberry Pi connectors only protrude into the HAT the display is unaffected by the Raspberry Pi and uses the same bottom shell in both setups.
Choose the display case from: