Mini Stack: H743 Mini FC + 30A Mini ESC 4 in 1

Name: Mini Stack: H743 Mini FC + 30A Mini ESC 4 in 1
SKU: 39271
Price: 59.90 USD
Availability: InStock

High-performance compact flight control and power solution optimized for 2–4" micro FPV drones.

Designed by ChatRobotic FPV Drones in China

Mini Stack: H743 Mini FC + 30A Mini ESC 4 in 1 1

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High-performance compact flight control and power solution optimized for 2–4" micro FPV drones.

Mini Stack: H743 Mini FC + 30A Mini ESC 4-in-1 Technical Brief System Overview High-performance compact flight control and power solution optimized for 2–4" micro FPV drones. Combines the processing …

Mini Stack: H743 Mini FC + 30A Mini ESC 4-in-1 Technical Brief

System Overview

High-performance compact flight control and power solution optimized for 2–4" micro FPV drones. Combines the processing power of STM32H743 with efficient AT32-based ESC control in a 20×20mm stackable footprint. Features 6S battery support, advanced gyro filtering, and digital HD system integration for responsive flight performance in micro builds.

1. Flight Controller Specifications

Parameter	Specification
MCU	STM32H743VIT6 (480MHz Cortex-M7, 1MB RAM)
IMU	ICM-42688-P (SPI, 32kHz gyro) :cite[1][3]
Blackbox	16MB Flash (8kHz logging) :cite[1][2]
Input Voltage	2–6S LiPo (7.4–25.2V) :cite[1][4]
BEC Outputs	5V@3A + 9V@2A :cite[1]
Connectivity	6x UART, 2x I²C, 1x Bluetooth :cite[1][4]
USB Interface	Type-C (ESD protected) :cite[1]
OSD Chip	AT7456E (Betaflight OSD) :cite[1][2]
Board Size	28.2×28.1mm (20×20mm mounting) :cite[1][2]
Board Weight	7.5g (with silicone gaskets) :cite[1]

2. 30A 4-in-1 ESC Specifications

Parameter	Specification
MCU	AT32F421K6U7 (120MHz Cortex-M4)
Continuous Current	30A/channel (120A total)
Burst Current	40A/channel (10 sec)
Protocols	DShot300/600, Proshot, PWM
Input Voltage	2–6S LiPo (7.4–25.2V)
Current Sensor	±2% accuracy shunt resistors
Switching Freq	24kHz (low-EMI design)
Board Size	30×30mm (20×20mm stackable)
Board Weight	13.8g (with thermal paste)

3. Combined Features

Power System

Integrated PDB: Direct battery-to-ESC distribution :cite[1][4]
Surge Protection: 30V TVS diodes + ceramic capacitors :cite[3]
Dual-Stage Filtering: LC + ferrite beads (>85% noise reduction) :cite[1][3]
Stackable Design: Gold-plated 20×20mm M2 screw terminals :cite[1]

Integration

DJI/Walksnail Support: Plug-and-play 9V BEC for HD systems :cite[1][3]
ESC Telemetry: Real-time monitoring via UART6 :cite[1]
Wireless Tuning: Bluetooth for Betaflight configuration :cite[1]
Vibration Damping: Silicone gasket isolation system :cite[1][3]

4. Safety Features

Flight Controller Protections

Protection Type	Specification	Implementation
Voltage Spike Protection	30V cont. / 35V transient	TVS diodes + LC filter :cite[3]
Gyro Vibration Damping	>8kHz reduction by 85%	Silicone isolators + dynamic notch :cite[1][3]
Dual Power Inputs	5V@3A + 5V@1A (backup)	Auto-switching circuit :cite[4]

ESC Protections

Protection Type	Threshold	Response Time	Trigger Condition
Hardware Overcurrent	40A per channel	≤2 seconds	MOSFET overload
Software Overcurrent	30A continuous	≤15 seconds	Sustained high current
Short Circuit	Hardware Isolation	<60μs	Phase-to-phase fault
Over-temperature	105°C (MOSFET)	<1ms	Thermal cutoff
Low Voltage Cutoff	3.0V/cell (adj.)	<50ms	Battery depletion

5. Accessories Package

1x SH1.0-8pins silicone cable (7cm, reversed)
1x SH1.0-6pins silicone cable (12cm, reversed)
1x SH1.0-4pins silicone cable (12cm, reversed)
1x SH1.0-3pins silicone cable (10cm, reversed)
1x SH1.0-2pins silicone cable (12cm, single-end)
5x M3*10mm shock-absorbing balls
5x M3*8mm shock-absorbing balls
1x 1000µF 35V capacitor (10×20mm electrolytic)
1x XT30-male 14AWG silicone cable (10cm)

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II. Shipping and Delivery

ChatRobotic will arrange shipping based on the order priority and inventory situation after receiving the full payment from the customer. The estimated shipping date will be informed to the customer in the order confirmation notice. However, due to force majeure or other unforeseeable and unavoidable reasons, the shipping time may be delayed, and the company will promptly notify the customer and provide a reasonable explanation.
The company will select appropriate logistics partners for product delivery, and the delivery scope covers most regions around the world. The delivery cost will be calculated based on factors such as the customer's shipping address, the weight, and volume of the order, and will be clearly shown in the order confirmation notice. Customers can choose different delivery service levels when placing an order, such as standard delivery or expedited delivery. The corresponding delivery costs and delivery times will vary accordingly.
After the product is shipped, ChatRobotic will provide logistics tracking information to the customer so that the customer can check the transportation status of the product at any time. When receiving the product, the customer should carefully check whether the packaging of the product is intact. In case of any damage or abnormality, the customer should promptly contact the logistics company and notify ChatRobotic.