DYS 40A OPTO ESC V2 V2 for 2S – 6S (SimonK Firmware)

Please note, current stock of this ESC has its 3.5MM motor connections directly soldered to the ESC, it doesn’t have wires as pictured.

The DYS blue series speed controllers have been developed and setup specifically for multirotor use, so no programming required. Unlike generic helicopter / aeroplane ESCs, the DYS speed controllers come preloaded with multirotor specific firmware preinstalled. Best still, it’s not just any old firmware; it’s the highly regarded SimonK firmware, which is optimised for multirotor applications. Google ‘SimonK firmware’ and you’ll come across lots of forum posts singing its praises. It’s designed to improve throttle precision but most importantly it can radically improve flight stability. It works by increasing the ESC refresh rate, in simple terms this means a SimonK ESC tells the motor what to do much more frequently than a non-SimonK ESC. The end product is a more ‘locked in’ feel, as the motors are able to make faster adjustments to the flight controller commands.

This particular ESC is well suited to heavy lifting multirotors such as large hexacopters and octocopters. It’s rated at 40amps (60amp burst) and it supports 2S to 6S (11.1v – 22.2v) operation. The ESC is OPTO, therefore it doesn’t have a built in 5V BEC. You will need an extra power source for your receiver and the ESC itself. For this you can use a 5V UBEC, voltage regulator, or an extra battery.

Features:

• Developed specifically for multi rotor use
• Smooth, linear and precise throttle response
• Extreme low output resistance, super current endurance
• Supports high RPM motors
• Safe start, motor will not run until ESC is armed correctly