30A Ultra Mini AM32 Brushless ESC w/5V3A BEC

The ultimate high-performance, ultra-compact speed controller designed for combat robotics.

Whether you’re driving a high-torque Beetleweight drivetrain or spinning a high-RPM Antweight spinner weapon, this AM32-powered 32-bit ESC delivers the instant throttle response, ultra-smooth low-end control, and reliable power density required to survive in the arena.

Key Features & Combat Benefits

• Customizable AM32 Firmware: Powered by a fast 32-bit AT32F421 MCU, open-source AM32 firmware offers far superior performance compared to standard BLHeli_S or simonk ESCs. Enjoy sine startup, smooth throttle curves, adjustable drag braking, and quick direction reversals.

• Single or Bidirectional Operation: Easily configurable via standard tools. Run it Bidirectional for drive motors in 150g Antweights and 1.36kg Beetleweights, or set it to Single Direction for high-power spinner weapons.

• Real-World Power Handling: Conservative, reliable rating of 20A Continuous / 30A Burst (2-4S LiPo), ensuring cool operation under heavy push-and-shove matches and stall conditions.

• Built-in 5V 3A BEC: No extra wiring or standalone UBEC required. High-capacity 3A output easily powers your radio receiver, custom LED indicators, and high-torque control servos.

• Ultra-Mini Footprint: At just 25 × 12 × 5 mm and weighing roughly 2.1 grams, it slides seamlessly into tight combat chassis layouts where every millimeter and fraction of a gram counts.

Why AM32 for Combat Robotics?

Standard ESC firmware often struggles with low-speed startup torque or delayed direction changes—two things that will get your bot flipped or pinned in the arena. AM32 32-bit firmware provides zero-latency control, instant forward-to-reverse switching without stuttering, and exceptional low-speed torque for pushing power.

Application Guide

• Antweight (150g): Perfect as a weapon ESC for high-KV brushless spinners or as a heavy-duty drivetrain ESC for high-voltage, high-push 4WD setups.

• Beetleweight (1.36kg): Ideal size and power density for dual-motor or quad-motor drive setups, providing smooth control and plenty of power buffer.

Specifications

• Firmware: AM32 (Version 2.x)

• MCU: 32-bit AT32F421 (120MHz)

• Continuous Current: 20A (realistic thermal rating)

• Burst Current: 30A

• Input Voltage: 2S–4S LiPo (7.4V – 14.8V)

• BEC Output: 5V @ 3A

• Signal Support: PWM, DSHOT300/600

• Dimensions: 25 mm × 12 mm × 5 mm

• Weight: ~2.1 g

Installation & Wiring Note

• Signal Input Cable: Includes a short 75mm 3-wire servo signal lead (Signal / 5V BEC / Ground). Note: To keep the ESC board ultra-compact and adaptable to your bot’s wiring, this lead must be soldered onto the designated pads by the purchaser.

• Configuration: Configurable via ESC-Configurator using a standard serial pass-through or USB parameter adjuster tool.