Overview
The MAD BLHeli_32 / AM32 70A 2-8S Drone ESC is a high-performance electronic speed controller designed for high-power drone applications. Equipped with an STM32G071 32-bit processor, this ESC ensures ultra-fast response, smooth motor control, and enhanced overcurrent protection. With support for DShot, MultiShot, OneShot, and PWM drive signals, it provides exceptional flexibility for drone builders. The advanced MOSFET technology and low ESR capacitors further enhance efficiency and thermal stability.
Key Features
- High-Power Handling: Supports continuous 70A current with 110A peak current (5 seconds).
- Wide Voltage Compatibility: Works with 2-8S LiPo batteries.
- 32-bit High-Performance Processor: Uses STM32G071 for precise control and fast response.
- Advanced Drive Signals: Supports DShot150/300/600/1200, MultiShot, OneShot, and PWM.
- Telemetry Support: Provides real-time feedback on ESC parameters.
- Current Sensor Integration: Allows monitoring of power consumption.
- Durable PCB Design: Features 8-layer 4+4+3OZ copper PCB for superior heat dissipation.
- RGB LED Indicators: Customizable lighting for status indication.
Protection Functions
- Overcurrent Protection: Prevents excessive current draw, protecting components.
- Short Circuit Protection: Automatically shuts down upon short-circuit detection.
- Voltage Protection: Prevents operation if input voltage is too low or high.
- Temperature Protection: Reduces output at high temperatures and shuts down if overheating persists.
- Startup Protection: Ensures safe motor start-up by preventing sudden power surges.
Technical Specifications
Parameter | Value |
---|---|
Model | MAD BLHeli_32 / AM32 70A ESC |
Size | 35 × 18 × 5 mm |
Weight | 7.1g |
Continuous Current | 70A |
Peak Current (5s) | 110A |
Input Voltage | 2-8S LiPo |
Processor | STM32G071 |
BEC Output | No |
Drive Signal Support | DShot150-1200 / MultiShot / OneShot / PWM |
Current Sensor | Supported |
Telemetry | Supported |
Firmware Version | BLHeli_32.X |
Firmware & Compatibility
- BLHeli_32 firmware, supporting full ESC parameter adjustment via flight controller.
- Compatible with Betaflight 3.2.0 and above.
- Regenerative braking (Damped Light) for smoother motor deceleration.
ESC Connection Guide
- BAT+ / BAT- (2-8S): Power input.
- Signal: Throttle control input.
- Telemetry: Data transmission to the flight controller.
- Ground: Common ground connection.
Applications
- FPV Racing Drones
- Freestyle Quadcopter Builds
- High-Power Drone Applications
- UAV Robotics & Experimental Projects
Safety & Compliance
- Ensure compliance with local flight regulations.
- Suitable for experienced UAV users over 18 years old.
- Verify all connections before powering on.
Details
MAD Components 70A ESC features STM32G071 processor, 11 TDK capacitors, Infineon MOSFETs, and thick PCB for high performance. Supports return voltage/current data, RGB LED customization. Ensures smooth flight with ultra-high-speed response and strong overcurrent capability.

BLHeli_32 firmware supports Dshot150/300/600/1200/MultiShot/OneShot/PWM drive signals. Features include STM32G071 processor, 70A continuous current, 110A max current, and support for Betaflight 3.20+. Size is 35*18*5mm, weight 7.18g, with precise control and strong anti-interference ability.