"3D Printer Shield" is a board to run 3D printer using ODROID single board computer, technically this board is designed to control the motor driver modules with TMC2209 (UART) or TMC2130 (SPI) through the on-board GPIO headers without an additional processessor.
Originally this project is started to use RAMPS 1.6, but has changed to design a new board since board connection is quite different.
The board has been tested with Ender-3 and runs by Klipper.
Then later, I've built an OS image to run Klipper on ODROID-C4 and the image can be downloaded from the link