I’m waiting for a new PCB for Hermione which hopefully will sort out the I²C errors that the Garmin seems to be the source of. That means I have 10 days to kill with nearly nothing to do except this – putting her HoG in a Pimoroni Tangerine PiBow:
The part that pleases me most is actually the RaspiCam cabling that can be folded flat, nicely fitting between the RPi and the PCB, and emerging from the case dead-center above the video connector.
Once complete and with the new PCB installed, the case can be extended to have a lid (the current PCB overruns the case by the GPIO pins), providing crash and weather protection for Hermione’s HoG* (or should that be Hermione’s HoT now?).
I’ve countersunk the M3 underside corner-holes of case level 0 so the base is flat, allowing the case to be attached to the frame with a double sided foam pad. To ensure the RPi is held firmly within the case, it’s bolted to the underside of layer 3 with 8mm M2.5 standoffs on the top of layer 3 to connect to the PCB. This does raise the RPi slightly higher (it’s intended to sit loosely on layer 2) and so some careful filing is needed on the underside of layer 5, both for the camera cable and the HDMI connector. But as you can see, the result is a perfect fit. The new PCB (also in Tangerine from Ragworm) will fit perfectly inside.
I just hope the new PCB does resolve the I²C problem so that this make-up doesn’t prove to be Hermione’s end-of-the-line.
*HoG (Heart of Gold) is the the ship from Douglas Adams’ “Hitchhikers’ Guide to the Galaxy” which contains the Infinite Improbability Drive which allowed faster-than-light travel when provided with the Brownian motion source; I consume 3 pints of tea each morning to meet her needs.