PiGFX Raspberry Pi Zero 'backpack' for composite video displays

thingiverse

This is a *VERY* specific design, that nonetheless may prove useful to somebody. The 'bare metal' Raspberry Pi kernel [PiGFX](http://https://github.com/fbergama/pigfx/ "PiGFX on GitHub") allows you to use a Raspberry Pi Zero with a composite or HDMI monitor as a dumb terminal that outputs whatever is sent to the onboard UART and optionally supports input from a USB or PS/2 keyboard. I had a need to use some composite monitors as 'logging windows' for a project and I added a [8086.net USB UART interface](https://www.tindie.com/products/8086net/solderless-serial-to-usb-adapter-for-rpi-cdc/ "8086.net USB UART interface on Tindie") so that the monitors would appears as USB serial ports you can just send text to. This design turns the Pi Zero and 8086.net USB UART into a 'backpack' that fits on a BNC video input socket and is held in place by the securing nut. There are a cutouts in the 'backpack' for the power USB, Host USB and the 8086.net USB UART. I have made several versions with the mounting lug in different locations, just print the appropriate one for your monitor.