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Specialist in Multirotor Tech & FPV Equipment

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DYS ARIA Slim 40A 3-6S BLHeli 32Bit Dhsot 1200 3-6S OPTO ESC with LED & Current Sensor

Flash Hobby Arthur / DYS ARIA Slim 40A 3-6S BLHeli 32Bit Dhsot 1200 3-6S OPTO ESC with LED & Current Sensor


In Stock

DYS multicopter parts

Please note: DYS Aria 40A is now branded FlashHobby Arthur 40A - this brand has taken over DYS

The DYS Aria series of Electronic Speed Controllers (ESC) have been designed specifically for FPV racing, they support high currents while maintaining a small footprint and weight.

This 40A Slim ESC features a high-speed ARM Cortex MCU STM32F051 48MHz microprocessor to provide a quick, smooth response to all your throttle commands. It also runs the latest Blheli_32 firmware with support for multiple protocol including 500HZ PWM, Oneshot 125, Oneshot 42, Multishot and Dshot 150/300/600/1200.

The ESC is low profile and compact in size, saving weight and designed to fit neatly onto the arms of your racing drone.


  • With 32bit ARM Cortex MCU STM32F051 48MHz microprocessor, throttle 2048 resolution ratio, strong anti-interference capacity.
  • Built-in sensor provides information on temperature, output power, output current etc., also programmable for protection.
  • Support Blheli_32 firmware, can use the signal wire for online upgrade the firmware or change the configuration.
  • Current Meter to help show the current indication on the OSD.
  • With USB linker can program the throttle setting like support positive and negative, two-way mode, FPV 3D mode, motor speed, braking, PWM frequency, inlet angle speed setting, onboard RGB LED for customize colour, Beep etc.
  • It uses the self-adaption control system, can go automatic with all kinds of motors in the market. It currently supports up to 500HZ PWM, oneshot 125, oneshot 42, Multishot and Dshot 150/300/600/1200.
  • With special optimization the motor can have a smoother throttle curve, faster response, great power, and highly support the multi-axis, fixed-wing and helicopter.
  • The twisted-pair signal wire can lower the crosstalk, which will lead to a more stable flight.
  • MCU hardware, Driver circuit, Mosfet come with double voltage protection.
  • Mosfets have an Aluminium HeatSink installed to further aid cooling and improve efficiency
  • Solder Pads for motor wires
  • MPU: 32bits ARM Cortex MCU STM32F051 48MHZ
  • Throttle resolution: 2048
  • Firmware: BLHeli_32
  • Supports 500HZ PWM, Oneshot125, Oneshot42, Multishot, Dshot150/300/600/1200
  • Con. current: 40A
  • Burst current(A)>10s: 50A
  • Input voltage: 3-6S Lipo
  • BEC: NO
  • Size: 34.5x11.5x5.5mm
  • Weight: 3.5


  • 1x DYS ARIA 40A ESC

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