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H743 Flight Controller

FPV Electronics > Flight Controller

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The H743 Flight Controller is a cutting-edge flight control board designed for high-performance FPV drones and autonomous UAVs.
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H743 Flight Controller Technical Brief

Descriptions

The H743 Flight Controller is a cutting-edge flight control board designed for high-performance FPV drones and autonomous UAVs. Built around the STM32H743 microcontroller (ARM Cortex-M7 @ 480MHz), it delivers exceptional processing power, ultra-low latency, and advanced flight dynamics. Ideal for racing, cinematic freestyle, and long-range autonomous missions.

1. Main Specifications

ComponentDetails
ProcessorSTM32H743 (Cortex-M7 @ 480MHz, Dual FPU)
Memory1MB SRAM + 2MB Flash
IMUBMI270 (SPI, 32kHz gyro) + BMI088 (6.4kHz)
3D MagnetometerIST8310 magnetometer
BarometerDPS310{Pressure sensor precision: ± 0.005 hPa (or ±0.05 m) (high precision mode)}
Connectivity7*UART / 10*PWM / 1*CAN / 1*I2C
Blackbox StorageTF card (recommended  32GB~512GB)
Input Voltage2S-8S LiPo (12.6V-33.6V)
BEC Outputs9V@5A + 5V@5A (Isolated)
Dimensions37×37mm (30.5×30.5mm mounting)
Board Weight11g

2. Key Features

8kHz Control Loops: 125μs cycle time with Cortex-M7 FPU.
Redundant IMUs: BMI270+BMI088 for fail-safe operation.
Single CAN bus: Supports digital ESC telemetry (e.g., T-Motor Velox).
8S LiPo Support: 40V surge-protected power input.
Onboard OSD: AT7456E.
AES-256 Encryption: Secure MSP/CRSF communication (Support all ELRS )

3. Firmware Compatibility

✅ Target (Betaflight_4.5.2_STM32H743)

     (Firmware target: www.chatrobotic.com/ STM32H743)

✅ INAV (GPS navigation + Lua scripts)
✅ ArduPilot (Autonomous missions)
✅ PX4 (Robotics/Research)

4. Typical Applications

🚁 Racing Drones: 8kHz mode for ultra-low latency.
🎥 Cinematic FPV: Vibration-damped IMU for smooth footage.
🛰️ Autonomous Drones: GPS support for RTK precision.
⚡ Industrial UAVs: 8S power system integration.

5. Accessories package list

  • • 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

6. Connection Diagram

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Frequently Asked Questions

What VESC current rating do I need for my motor?
Choose by your motor’s phase-current demand and application. 200A–500A VESC controllers suit ebikes, scooters and light robotics; 1000A-class units power high-performance eskate, EUCs and small EVs; 2000A controllers target electric motorcycles and industrial drives. Always leave headroom above your battery’s fully-charged voltage.
Do you offer OEM/ODM customization for VESC controllers?
Yes. ChatRobotic is an ISO 9001 and ISO 14001 certified manufacturer providing OEM/ODM VESC controllers, custom firmware, enclosure design and PCB assembly for 200A–2000A applications. Contact our engineering team with your specs to start a custom build.
How long is the lead time and which shipping methods do you use?
In-stock VESC controllers are shipped via DHL/FedEx after payment is received. Delivery time depends on the shipping method: DHL/FedEx priority express 3–5 business days, economy express 4–6 business days, registered post 8–20 business days, worldwide. OEM/ODM and bulk orders are scheduled by customization scope. Logistics tracking is provided after shipment.
Are these VESC controllers compatible with sensored and sensorless motors?
Yes. ChatRobotic VESC controllers support both sensored (hall-sensor) and sensorless BLDC/PMSM motors and work with a wide battery range. FOC, regen braking, throttle curves and telemetry are fully configurable through VESC Tool.