The ReadytoSky 40A 2-6S OPTO Brushless ESC is specifically designed for quadcopters and multi-rotors, offering high performance and smooth motor control. The OPTO ESC provides isolation between the high-power side (battery and motor) and the signal side (connection to the receiver) using an opto-coupler. This isolation ensures cleaner signals, reducing interference and improving overall flight stability.
 
This ESC is perfect for those looking to build a drone or multirotor system that demands high current handling, stability, and smooth motor control. Its opto-isolation and compatibility with high refresh rates make it ideal for FPV racing and other performance-based drone applications.
 
Key Features:
Opto-Isolation:
This OPTO ESC uses an opto-coupler to isolate the high-power components from the signal side, resulting in a more stable and interference-free signal transmission between the receiver and the ESC.
High-Performance Firmware:
The firmware is optimized for disc motors, offering better compatibility and control, especially for quadcopters and multi-rotors.
Fast Throttle Response:
The ESC's multi-integrated circuit provides a fast throttle response, ensuring superior flight performance compared to other open-source ESCs.
MOSFET Special Driver Integrated Circuit:
This ESC uses ultra-low resistance MOSFETs and a specialized driver circuit to provide better stability and efficiency than traditional circuits made from discrete components.
High Refresh Rate:
Supports throttle signal refresh rates of up to 621Hz, making it compatible with various flight controllers. This allows for more precise control, especially for FPV racing and other fast-response applications.
Twisted Signal Line:
The throttle signal line is twisted to reduce crosstalk and noise, ensuring more stable signal transmission and smoother flight control.
Intelligent and Adaptive:
The ESC features a highly intelligent and adaptive control system, with reserved timing settings for high and middle timing, making it easy to configure and use.
No BEC (Battery Elimination Circuit):
Since this is an OPTO ESC, it does not have a built-in BEC, which means you will need a separate BEC to power the flight controller and other electronics.
 
Specifications:
Brand: ReadytoSky
Model: 40A OPTO Brushless ESC
Continuous Current: 40A
Burst Current (10 seconds): Not specified
Battery Compatibility: 2-6S LiPo (7.4V to 22.2V)
BEC: None (OPTO)
Timing: High/Middle (adjustable)
Throttle Signal Refresh Rate: Supports up to 621Hz
Size: 68mm x 25mm x 8.7mm
Weight: 26g
Continuous Current: 40A
Peak Current: 50A (for 10 seconds)
Battery Compatibility: 2S-6S LiPo (7.4V - 22.2V)
Connectors: 3.5mm Banana Connectors pre-installed
Start Mode: Normal / Soft / Super-soft
Brake Mode: Optional (programmable)
Timing: Adjustable for compatibility with different motors
Protection Features: Under-voltage, overheat, and signal loss protection
 
Key Benefits:
Opto-isolation reduces signal interference and noise, improving flight stability.
Optimized for disc motors and compatible with a wide range of 2-6S LiPo batteries.
Fast throttle response and MOSFET drivers provide greater efficiency and performance.
Lightweight and compact design is ideal for quadcopters and multi-rotors.
 
Ideal For:
Quadcopters and multi-rotors
FPV racing drones
Aerial photography platforms
Fixed-wing aircraft
DIY drone projects
 
Package Includes:
1 x ReadytoSky 40A 2-6S OPTO ESC