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How to Use H743-SLIM V3: Examples, Pinouts, and Specs
Design with H743-SLIM V3 in Cirkit DesignerIntroduction
The H743-SLIM V3 is a compact, high-performance flight controller designed by MATEKSYS for use in various unmanned aerial vehicles (UAVs), including drones and RC aircraft. It is based on the STM32H743 microcontroller, which provides a balance of processing power and energy efficiency, making it suitable for applications where space and power are at a premium.
Explore Projects Built with H743-SLIM V3
H743-SLIM V3 Controlled Robotic System with Servo and Brushless Motor Integration
This circuit is designed to control multiple servos and brushless motors using an H743-SLIM V3 microcontroller. The servos are connected to the microcontroller's PWM pins, while the brushless motors are controlled via Electronic Speed Controllers (ESCs) that are also interfaced with the microcontroller. A 12A UBEC provides the necessary power to the microcontroller and other components.
Open Project in Cirkit DesignerRaspberry Pi and H743-SLIM V3 Controlled Servo System with GPS and Telemetry
This circuit is designed for a UAV control system, featuring an H743-SLIM V3 flight controller connected to multiple servos for control surfaces, a GPS module for navigation, a telemetry radio for communication, and a digital airspeed sensor for flight data. The system is powered by a LiPo battery and includes a Raspberry Pi for additional processing and control tasks.
Open Project in Cirkit DesignerBattery-Powered FPV Drone with Telemetry and Dual Motor Control
This circuit appears to be a power distribution and control system for a vehicle with two motorized wheels, possibly a drone or a robot. It includes a lipo battery connected to a Power Distribution Board (PDB) that distributes power to two Electronic Speed Controllers (ESCs) which in turn control the speed and direction of the motors. The system also integrates a flight controller (H743-SLIM V3) for managing various peripherals including GPS, FPV camera system, and a telemetry link (ExpressLRS).
Open Project in Cirkit DesignerNFC-Enabled Access Control System with Time Logging
This circuit is designed for access control with time tracking capabilities. It features an NFC/RFID reader for authentication, an RTC module (DS3231) for real-time clock functionality, and an OLED display for user interaction. A 12V relay controls a magnetic lock, which is activated upon successful NFC/RFID authentication, and a button switch is likely used for manual operation or input. The T8_S3 microcontroller serves as the central processing unit, interfacing with the NFC/RFID reader, RTC, OLED, and relay to manage the access control logic.
Open Project in Cirkit DesignerExplore Projects Built with H743-SLIM V3
H743-SLIM V3 Controlled Robotic System with Servo and Brushless Motor Integration
This circuit is designed to control multiple servos and brushless motors using an H743-SLIM V3 microcontroller. The servos are connected to the microcontroller's PWM pins, while the brushless motors are controlled via Electronic Speed Controllers (ESCs) that are also interfaced with the microcontroller. A 12A UBEC provides the necessary power to the microcontroller and other components.
Open Project in Cirkit DesignerRaspberry Pi and H743-SLIM V3 Controlled Servo System with GPS and Telemetry
This circuit is designed for a UAV control system, featuring an H743-SLIM V3 flight controller connected to multiple servos for control surfaces, a GPS module for navigation, a telemetry radio for communication, and a digital airspeed sensor for flight data. The system is powered by a LiPo battery and includes a Raspberry Pi for additional processing and control tasks.
Open Project in Cirkit DesignerBattery-Powered FPV Drone with Telemetry and Dual Motor Control
This circuit appears to be a power distribution and control system for a vehicle with two motorized wheels, possibly a drone or a robot. It includes a lipo battery connected to a Power Distribution Board (PDB) that distributes power to two Electronic Speed Controllers (ESCs) which in turn control the speed and direction of the motors. The system also integrates a flight controller (H743-SLIM V3) for managing various peripherals including GPS, FPV camera system, and a telemetry link (ExpressLRS).
Open Project in Cirkit DesignerNFC-Enabled Access Control System with Time Logging
This circuit is designed for access control with time tracking capabilities. It features an NFC/RFID reader for authentication, an RTC module (DS3231) for real-time clock functionality, and an OLED display for user interaction. A 12V relay controls a magnetic lock, which is activated upon successful NFC/RFID authentication, and a button switch is likely used for manual operation or input. The T8_S3 microcontroller serves as the central processing unit, interfacing with the NFC/RFID reader, RTC, OLED, and relay to manage the access control logic.
Open Project in Cirkit DesignerCommon Applications and Use Cases
- Multirotor and fixed-wing UAVs
- Autonomous vehicles
- Robotics
- High-performance DIY electronics projects
Technical Specifications
Key Technical Details
- MCU: STM32H743VIT6, 480MHz, 1MB RAM, 2MB Flash
- IMU: 2x ICM20602, up to 32KHz
- Baro: BMP280 (I2C)
- OSD: AT7456E
- Blackbox: MicroSD card slot
- VCP & 6x UARTs, 1x Softserial_Tx option
- 12x PWM outputs (Dshot capable)
- 1x I2C
- 4x ADC (VBAT, Current, RSSI, AirSpeed)
- 3x LEDs for FC STATUS (Blue, Green) and 3.3V indicator(Red)
- Voltage Ratings: 6
36V (28S LiPo) - BEC: 5V 2A cont. (Max.3A)
- Dimensions: 36x36mm
- Mounting: 30.5x30.5mm, Φ3mm
- Weight: 7g
Pin Configuration and Descriptions
| Pin | Function | Description |
|---|---|---|
| 1-4 | Motor Outputs | PWM outputs for ESCs or Servos |
| 5-6 | UART1 | Serial communication ports |
| 7 | I2C | For external sensors |
| 8 | USB VCP | For firmware flashing and debugging |
| 9 | MicroSD | For blackbox logging |
| 10 | ADC1-4 | Analog inputs for voltage and current sensing |
| 11 | LED | Status indicators |
| 12 | BEC 5V | Power output for peripherals |
Usage Instructions
How to Use the Component in a Circuit
- Powering the Board: Connect a 2-8S LiPo battery to the board. Ensure the voltage is within the specified range.
- Connecting Motors and Servos: Attach motors or servos to the PWM outputs, ensuring correct polarity.
- Serial Devices: Connect devices like GPS, telemetry, or receivers to the UART ports as needed.
- Sensors: Attach I2C compatible sensors to the I2C port.
- Firmware Flashing: Use the USB VCP for initial firmware flashing and subsequent updates.
- Blackbox Logging: Insert a MicroSD card into the slot for flight data logging.
Important Considerations and Best Practices
- Always verify connections before powering up to prevent damage.
- Use a clean and well-organized wiring layout to minimize electromagnetic interference.
- Update to the latest firmware for optimal performance.
- Configure the board using appropriate software, such as Betaflight or INAV, depending on your application.
Troubleshooting and FAQs
Common Issues
- Board not powering up: Check battery voltage and connections.
- Motors not spinning: Verify motor wiring and ESC calibration.
- No response from servos: Check PWM signal and power supply to the servos.
- Inaccurate sensor readings: Calibrate sensors through the configuration software.
Solutions and Tips for Troubleshooting
- Ensure that all solder joints are secure and free of shorts.
- If a component is not functioning, try isolating it and testing with a multimeter.
- Consult the MATEKSYS forums and community for support specific to the H743-SLIM V3.
FAQs
Q: Can I use this board for a fixed-wing aircraft? A: Yes, the H743-SLIM V3 is suitable for both multirotor and fixed-wing applications.
Q: What software should I use for configuring the H743-SLIM V3? A: You can use Betaflight, INAV, or any other compatible flight control software.
Q: How do I update the firmware on the H743-SLIM V3? A: Firmware can be updated via the USB VCP using the DFU mode. Follow the instructions provided by the firmware's documentation.
Q: Is the board compatible with ArduPilot? A: Yes, the H743-SLIM V3 is compatible with ArduPilot. Make sure to use the correct target when flashing the firmware.
For any further assistance, please refer to the MATEKSYS website or contact their support team.
Please note that this documentation is a general guide and may not cover all aspects of the H743-SLIM V3. Always refer to the latest resources provided by MATEKSYS for the most accurate and up-to-date information.