RPM Filtering with bidirectional dshot is one of the most powerful ways to get better performance out of your micro quadcopter or Tiny Whoop. But BLHeli_S ESC's don't support it by default. That's where JESC and JazzMaverick come in. These are two aftermarket firmwares that you can put on your ESC to enable RPM filtering with bidirectional Dshot. But there's a difference. JESC costs money. JazzMaverick is free. I'll show you how ot install either of them and get them running.
