I want to up grade to the Arduino Due for the double precision math. However, the 3.3VDC I/O will not work for my application. Is there a board available that can switch 5-12 VDC @ 2000 kHz using the Arduino Due 3.3VDC? IF I have to use encoder feedback to maintain accuracy then I will need to buck the voltage @ the same frequency.
Will the sketches, 80 character/4 line display and the 4 x 4 matrix keypad from my Arduino UNO revs3 work with the Arduino Due?