ESC Board for Flycolor Raptor 30A S-Tower

BLHeli-S 4-in-1 ESC, coming with EFM8BB21F16G MCU, support Dshot / Multishot / Oneshot, support high KV motor, can support at most 500k eRPM. And integrated with current meter on the ESC, capable of displaying current with OSD directly in realtime. BLHeli-S firmware is the next generation code, following the base BLHeli code. It designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation.