Hello Everyone,
I recently put together a library for driving ILI9486 based 3.5" and 4.0" TFT Displays with an 8-bit parallel interface for STM32duino based on the Adafruit GFX API.
It's available on my GitHub
here.
I figured I would share it here for anyone interested in creating a low cost display interface with pretty solid performance.
Feel free to let me know if you have any questions!