These ESCs are particularly tailored for high-intensity scenarios such as FPV racing and acrobatic flight. Their key advantages are detailed as follows:
Powerful and Stable Power Output
These ESCs are often equipped with high-performance hardware. For instance, certain models adopt Toshiba MOSFETs with a peak current of up to 200A, easily handling various FPV drone models under 5 inches. When paired with 32-bit ARM F4 or similar main control chips, the operating frequency can be boosted to a maximum of 120MHz. Combined with the AM32 firmware, the ESC can sustain higher power output than counterparts of the same specification, effortlessly coping with high-load flight scenarios like high-speed sprints and rapid acceleration.The built-in dynamic PWM adjustment function ensures stable motor torque resolution, preventing erratic power fluctuations. It provides consistent and uniform power delivery whether for high-speed maneuvers or steady cruising.
Precise and Responsive Control
It supports adjustable PWM refresh rates ranging from 48KHz to 96KHz, and is compatible with high-speed digital throttle signals such as Dshot 300/600. This not only enables finer throttle control but also enhances anti-interference capability, reducing control latency caused by signal interference during flight. Additionally, it supports the bidirectional Dshot protocol for real-time motor speed telemetry, allowing the flight controller to acquire motor RPM data instantly and further optimize control feedback.Users can fine-tune parameters including motor KV value, response speed, and low-RPM acceleration via the parameter tuning interface. This allows customization for different flight styles, ensuring precise control for both the aggressive responsiveness required in racing and the delicate movements needed for acrobatic flight.
Open-Source Firmware with Strong Expandability
The AM32 firmware is open-source and backed by an active developer community. Compared to the closed-source BLHeli-32 firmware, it features faster iteration cycles and continuous updates with practical new functions. Developers and hobbyists can customize parameters such as motor timing, PWM frequency, and startup power to accommodate hardware like high-pole-count motors, offering far superior adaptability compared to ESCs running closed firmware.The firmware supports multiple series of ARM processors including STM32, GD32, and AT32. It can be updated through various methods such as throttle signal lines, development boards, and flight controllers with Betafight firmware, providing flexible operation for future function expansion or bug fixes.Integrated Design for Convenience and Reliability.The 4-in-1 integrated design consolidates four ESCs onto a single circuit board, significantly reducing internal wiring within the drone. This not only saves space and simplifies wiring but also lowers the risk of faults such as poor connections and short circuits. Some models feature enlarged pad areas and optimized layouts for easier soldering, ideal for beginners. Certain variants even support direct plug-and-play with the air unit, eliminating the need for soldering and greatly improving installation efficiency.Many of these ESCs come with a built-in fuel gauge, enabling the flight controller to monitor current and voltage in real time for accurate battery level tracking. Some models also incorporate shock absorption structures at the mounting holes, minimizing vibration impact on high-sensitivity components while providing shock protection for upper-layer devices like the flight controller, thus enhancing overall flight stability.
Wide Adaptability and High Compatibility
It boasts excellent voltage and current compatibility, supporting a lithium battery voltage range of 3–12S and offering multiple current ratings (35A, 45A, 65A, 100A, etc.). This makes it suitable for FPV drones sized from 2 inches to 7 inches, catering to diverse flight needs including racing, freestyle acrobatics, and daily cruising.In terms of protocol compatibility, besides mainstream Dshot protocols, it also supports common protocols such as PWM and Oneshot. It can be seamlessly paired with flight controllers and motors of different brands and models, reducing the difficulty of hardware matching for hobbyists.
