Original GoolRC 4 in 1 6A ESC 1-2S BLHeli_S Oneshot125 Multishot for 80 90 100 Tiny Micro FPV Racing Quadcopter

Features:
Chips on EFM8BB21F16,50MHZ Greatest
BLHeli_S is designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation.
Small size combined with light weight for easy installation
The code supports regular 1-2ms pulse width input, as well as Oneshot125 (125-250us), Oneshot42 (41.7-83.3us) and Multishot (5-25us)
The input signal is automatically detected by the ESC upon power up
All codes use damped light mode.Damped light does regenerative braking, causing very fast motor retardation, and inherently also does active freewheeling
The code supports features to prevent sync loss. There are tuneable parameters that can make the code run well even in the most demanding situations, although default settings will work excellently in normal operating environments
The code also supports a beacon functionality, where the ESC will start beeping after a given time of zero throttle, this can be very useful for finding lost crafts