STM32 bluepill with 8bit parallel shield, serial parsing. Basic GPU to use with another MCU, or serial console
Compatable with MCUFriend commands.
MCUFriend_kbv library with modified utility\mcufriend_shield.h https://github.com/WacKEDmaN/MCUFRIEND_kbv
DynamicCommandParser library https://github.com/WacKEDmaN/DynamicCommandParser
^mandelbrot$
^drawRect,x0,y0,h,w,color$ x0,y0=top left, h=height,w=width, all color values must be added as decimal values
^fillRect,x0,y0,h,w,color$
^fillScreen,color$
^drawCircle,x0,y0,radius,color$ x0,y0=centre
^fillCircle,x0,y0,radius,color$
^drawTriangle,x0,y0,1,y1,x2,y2,color$ x0,y0=corner 1 x1,y1=corner 2 x2,y2=corner 3
^fillTriangle,x0,y0,1,y1,x2,y2,color$
^invertDisplay,0-1$
^drawRoundRect,x0,y0,h,w,radius,color$
^fillRoundRect,x0,y0,h,w,radius,color$
^setTextColor,color,bgcolor$ bgcolor must be added
^print,text$ text in a string w/o ',' string ends at $
^println,text$
^setCursor,col,row$
^setTextSize,size$
^setRotation,0-3$
^drawPixel,x0,y0,color$
^readPixel,x0,y0$ returns color value
^drawLine,x0,y0,x1,y1,color$