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FPV Electronics > ESC (Electronic Speed Controllers)
High-performance 4-in-1 electronic speed controller utilizing the AT32F421K8U7 ARM Cortex-M4 MCU, designed for 2-8S FPV drones requiring ultra-fast response and robust power delivery. Delivers precise motor control with advanced telemetry capabilities in a compact 54×45mm form factor.
| Parameter | Specification |
| MCU | AT32F421K8U7 (Cortex-M4 @ 120MHz) |
| Continuous Current | 85A/channel (4-in-1 total 340A) |
| Peak Current | 100A/channel (10 seconds) |
| Input Voltage | 2S-8S LiPo (12.6V-33.2V) |
| PWM Frequency | 8-48kHz (Programmable) |
| Protocols | DShot150/300/600/Multishot/Oneshot/PWM |
| Dimensions | 54×45×8mm |
| Board Weight | 16g |
• MOSFETs: 24× BSC010N04LS-5*6
• Capacitance: 30× 22μF 35V ceramic capacitors + 1000μF electrolytic capacitor
• Power Isolation: 4 independent LDO power supplies for stable operation
• Current Sensing: High-precision shunt resistors with hardware filtering
• MCU Performance: 120MHz clock speed with hardware FPU
• Processing Speed: Single-cycle 32-bit multiplication
• Update Rate: 32kHz signal processing
• Algorithm: Hybrid FOC + PWM control
• Overcurrent: Hardware comparator + software monitoring
• Thermal Management: Throttle reduction @ 85°C
• Voltage Spike: 40V transient protection
• Short-Circuit: Motor phase-to-phase fault detection
• 5"-13" high-performance racers
• Low-latency digital HD systems
• Medium and small unmanned aerial vehicles
• Smooth-flow freestyle builds
• 8S long-range cruisers
• Competition-grade freestyle quads
• 1× 1000μF 35V electrolytic capacitor (10×20mm)
• 1× XT60-male 12AWG silicone cable (15cm)
• 1× SH1.0-8pins silicone cable (7cm, reversed)
• 5× M3×8mm shock-absorbing balls
