Holybro BLHeli S ESC 20A 2-4S Speed Controller

Connector	Clear

Description

A BLHeli S 20A ESC designed for use with Holybro’s 2216-880KV Motor / X500 Quadcopter Kit (V1 and V2). The ESC is slim so can fit within 16MM booms.

It comes with long wires and pre-soldered connectors for a quick and easy installation – please select connector option as required.

Main features

● EFM8BB21F16G MCU, pipelined 8-bit C8051 core with 50 MHz maximum operating frequency.
● Dedicated high frequency driver, makes the start more smooth. ESC maximum speed is 500k eRPM.
● BLHeli-S firmware is designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation.
● Damped light does regenerative braking, causing very fast motor retardation, and inherently also does active freewheeling.
● Supports higher KV motor and more power load.
● The code supports regular 1-2ms pulse width PWM input, as well as Oneshot and Multshot . The input signal is automatically detected by the ESC upon power up.
● Supports Dshot150, Dshot300 and Dshot600. Dshot is digital signal, anti-interference ability is stronger and do not need throttle calibration.
● The silicone twisted-pair of the throttle signal cable reduces the crosstalk caused by signal transmission and makes flight more stable.

Specification

Con. Current:20A
Burst Current(10S):30A
BEC:NO
LiPo cells: 2-4S

Q&A

Questions and answers of the customers

what is the pwm output MIN and MAX

0 votes

Q what is the pwm output MIN and MAX answer now

A
Hi, sorry Holybro don't provide that information. Usually it's around 1000us to 2000us.

Advice

Here at Flying Tech we have a wide choice of electronic speed controllers (ESCs).

There are two main types of ESCs: 4-in-1 ESCs and single ESCs. A 4-in-1 ESC integrates four individual ESCs onto a single circuit board, each controlling a separate motor. A single ESC controls only one motor.

This 4-in-1 ESC is a more popular choice for racing quads, while single motor aircraft such as fixed wings would use a single ESC. Single ESCs are still used by some drone racers though, as after a crash or a burnt up ESC, they only have to replace one, not an entire 4-in-1 or stack which is a lot more costly. Single ESCs are also available which much greater current ratings (80amp +) so they are also used by power hungry multi-rotors, for example X-Class racing quads, professional camera flying “Cinelifters”.

When using individual ESCs, they typically need to be connected to a single power distribution board (PDB) or an “AIO flight controller” (a type of flight controller with integrated PDB) for power supply.

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