Overview
The MAD AM32 70A 3-8S 4-in-1 ESC is a high-performance electronic speed controller designed for FPV racing drones. freestyle quads. and cinematic UAVs. Featuring Infineon aviation-grade MOSFETs. high-voltage TDK MLCC capacitors. and a powerful STM32L431 M4 kernel processor. this ESC delivers efficient heat dissipation. rapid motor response. and superior power stability. With real-time current monitoring and online firmware upgrades. the AM32 70A provides professional-level performance and reliability for 3S to 8S LiPo-powered drones.
Key Features
- Supports 3-8S LiPo Batteries – Wide voltage compatibility for versatile drone setups.
- 70A Continuous Current Per ESC Circuit – Reliable high-current handling for demanding flights.
- BLHeli-32 Firmware – Advanced ESC firmware for smooth control and optimal efficiency.
- Infineon Aviation-Grade MOSFETs – Enhanced heat dissipation and overcurrent resistance.
- High-Voltage TDK MLCC Capacitors – Provides stable voltage output and reduces power noise.
- 4 Independent Current Sensors – Enables real-time monitoring of working current and voltage.
- STM32L431 Cortex-M4 Processor – Faster computation speed for superior motor control.
- Online Upgrade Support – Directly download firmware updates from the network.
- Multiple Protocol Support – Compatible with PWM. DShot150/300/600/1200. OneShot125/42. and MultiShot.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AM32 70A 3-8S 4-in-1 ESC |
| Input Voltage | 3-8S LiPo |
| Continuous Current | 70A (per ESC circuit) |
| Processor | STM32L431 / STM32L432 Cortex-M4 48M |
| Firmware | BLHeli-32 |
| ESC Protocols | PWM. DShot150/300/600/1200. OneShot125/42. MultiShot |
| Board Size | 40mm x 43mm x 7mm |
| Mounting Hole Spacing | 30.5mm |
| Weight | 14.2g (excluding wiring) |
Connection Diagram
- 4 Motor Outputs – M1. M2. M3. M4 ports for brushless motor connections.
- Battery Input – BAT (+) and GND (-) terminals for power connection.
- PWM / DShot Support – Ensures compatibility with most flight controllers.
Advanced Features
- Integrated 3-in-1 Drive Circuit – Ensures smooth motor operation with enhanced efficiency.
- 4 Independent Current Sensors – Provides precise voltage and current monitoring.
- High-Voltage Input Capacitors – TDK MLCC capacitors improve power stability.
- Built-in High-Voltage BEC – Delivers 1000V input BEC. reducing external power module requirements.
- Gold-Plated Solder Pads – Ensures stable. low-resistance electrical connections.
- Firmware Upgradable – Users can update firmware via the official GitHub repository.
Ideal for:
- FPV Racing Drones – High-speed. responsive motor control for extreme maneuvers.
- Freestyle Drones – Smooth power delivery for aerial tricks and freestyle flights.
- Cinematic Drones – Reliable performance for capturing stable aerial footage.
AM32 70A ESC. 3-8S 4in1 electronic speed controller module.
Infineon Aviation Grade MOS features efficient heat dissipation. strong overcurrent capability. 4 independent currents. online upgrade. imported TDK MLCC. and STM32L431 M4 Kernel for faster computation.
Technical specifications for AM32 70A 3-8S 4in1 ESC include input voltage of 3-8S Lipo. size 40*43*7mm. weight 14.2g. and firmware BLHELI_32. It supports PWM. Dshot. Oneshot. and Multishot protocols with a STM32L431/432 processor. Features four independent current and voltage detection circuits.
A 40mm x 43mm electronic board connects to four motors labeled Motor 1. Motor 2. Motor 3. and Motor 4. Diagram illustrates connections with BAT and GND points.