Differential Drive Programming

[Acetronics2]

Hi, Shahiqbashir

I realized some years ago such a thing for my large model boats ...

But I used TWO PWM outputs to get rid of the PWM soft drive ( other more useful stuff to do during this time ) ... so, it was aboard a 16F876.
With all the "whistles and bells" ... it took 3783 memory words.

That's to tell you a 16F84 will be really, really small for such a purpose ( PbP programmed overall !!! )

These days, the 18F1230/1330 offer you such features aboard a 18 pins package. ...

Worth some reflexion ???

Alain

PS: other possible solution : 1 16F84 cares of the input signals ... and drives 2 16F84s which drive the motors ...

[Acetronics2]

Hi, Steve

For such model motors it's commonly admitted ~ 3-4000 Hz for ferrite magnets ( to let them some life ...) , and what you want for rare earth magnets.

Note at higher frequencies, it will be difficult to drive the Mosfets directly from the PIC, due to their High input capacitance ...TC 442x drivers are then to be used.

soooo, in all cases, you'll have a sweet music for free...

Alain