You can buy boards for ELLO 1A from my Tindie store
(XLS) BOM for Through-Hole assembly
(XLS) BOM for Surface-Mount assembly
(PDF) Assembly Drawing
(ZIP) PCB Gerbers pack
(ZIP) Full manufacturing pack
(ZIP) Firmware for PIC32MX170 or PIC32MX270
NOTE: The firmware is developed on PIC32MX270 to ensure support for USB functionality. When programming a PIC32MX170, the programmer will display a warning that the device is not matching the intended target.
Ignore the warning and upload the code into the microcontroller.
Github repository: https://github.com/knivd/C.impl