RE: Building a DraganFlyer - need to mix speedcontrollers - HELP
Hi A2,
For a start I'd get rid of the IRF540 fets. They have a very high RDS of 44 mohms and that's at 10v gate drive. They'd be even worse at 5v. In other words, some of your battery power is being disipated in the fets themselves, so the voltage seen by your motors is less than if you had low RDS fets.
Cheers ADI