SEQURE Blueson A1 20*20 2-8S 70A ESC with AM32 Firmware

SEQURE Blueson A1 AM32 ESC 20×20 2–8S 70A

The SEQURE Blueson A1 4-in-1 ESC is a solid choice for FPV racing and freestyle builds that need reliable power delivery, smooth throttle response, and broad battery compatibility. Built around AM32 firmware and a fast 32-bit processor, it delivers precise motor control, efficient performance, and the durability hobby pilots expect when pushing their quad hard.

Key features:

• High-quality PCB with thick copper layers for excellent current handling and improved heat dissipation.
• Premium MOSFETs help boost efficiency and support smoother, more responsive flight performance.
• Fast 32-bit AT32F421 processor for accurate control and dependable ESC operation.
• Dynamic PWM frequency from 8 kHz to 128 kHz for smoother throttle feel and more precise speed response.
• Wide 2–8S LiPo input support for flexible use across different FPV drone setups.
• 20×20 mm mounting pattern designed to fit compact racing drone frames.
• Large solder pads make installation easier and reduce soldering difficulty.
• Telemetry and current sensor support for better monitoring and tuning.

Specifications:

• Model: Blueson A1
• Processor: AT32F421
• Firmware: AM32
• PWM frequency: 8 kHz – 128 kHz
• Operating voltage: 2–8S LiPo
• Continuous current: 70A (8S)
• Peak current: 150A (8S)
• Supported protocols: DShot600 / DShot300 / DShot150, Oneshot, Multishot, PWM
• Telemetry: Yes
• Current sensor: Yes
• BEC: No
• Mounting hole spacing: 20 × 20 mm, Φ4 mm / M3
• Dimensions: 42.5 × 36 × 7 mm
• Weight: 19 g

What’s in the box:

• SEQURE Blueson A1 4-in-1 ESC × 1
• 30AWG 40 mm cable with reverse dual SH1.0-8P connector × 1
• 30AWG 60 mm cable with single SH1.0-8P connector × 1
• 12AWG 100 mm power wires (black/red) × 2
• XT60H-M connector (male, black) × 1
• 35V 680 µF capacitor × 1
• M3 × 8 mm shock-absorbing grommets (black) × 5

Packaging information:

• Product dimensions: 42.5 × 36 × 7 mm
• Net product weight: 19 g
• Package dimensions: 90 × 60 × 35.5 mm
• Package weight: 63 g
• Outer carton dimensions: 155 × 105 × 40 mm
• Package weight with outer carton: 105 g