This is a project I started a while back in 2015, its been
Using the dsPIC33ep512 from microchips (tm) the unit runs
Using this chip I had the boards printed off using pcbtrain.
The display is cheap enough utilising the SSD1289 and SSD1298
running at 16bit, since the drivers and some code where borrowed
I will not be able to sell the sourcecode or the device with
the firmware pre-burned. I will provide a compiled free to
download firmeware and some demo code for you to try...
This project is by no means a competitor to the Raspberry
PI (that thing is a beast!) but for those wanting to work
with microcontrollers and not microprocessors.
There is a header for a 16BIT wide header, for use for data
chunks or just simple switches.
To use this device I would recommend a Microchips PICKIT
3 or ICD programmer.
I hope to initially put a boot loader for serial upload...
it will expect the firmware provided. But you will need a
USB to Serial (if you dont have a real serial port) and this
program to upload the firmware...
I will provide a retro VB6 sourcecode for the uploader so
if you want to edit... also that peace of mind that I haven't
added anything nasty to the code.