JHEMCU F4 NOXE V3 F411 Flight Controller User Manual

1. Introduction

This user manual provides detailed instructions for the installation, configuration, and operation of the JHEMCU F4 NOXE V3 F411 Flight Controller. Please read this manual thoroughly before using the product to ensure proper functionality and safety.

The JHEMCU F4 NOXE V3 F411 Flight Controller is a compact and feature-rich board designed for multi-rotor aircraft. It integrates essential components for flight control, power management, and data logging, making it suitable for various FPV drone builds.

2. Product Overview

The F4 NOXE V3 F411 Flight Controller is engineered for performance and reliability. Key features include:

• Main Control Unit (MCU): STM32F411CEU6 operating at 100 MHz.
• Sensor: BMI 270 Gyro/Accelerometer for precise flight stabilization.
• Video Overlay (OSD): AT7456E for on-screen display of flight data.
• Barometer: Integrated for altitude holding (available in Deluxe version only).
• Black Box: 16MB onboard storage for flight data logging (available in Deluxe version only).
• Power Input: Supports 2S-6S LiPo batteries (7.4V-26V).
• Built-in BECs: 5V/2.5A and 10V/2A for powering peripherals.
• Receiver Support: Compatible with ELRs (CRSF), TBS (CRSF), SBU, IBU, DS M2, DS MX.
• Connectivity: HD interface, UART 1, UART 2, IIC1, LED strip output, 5V active buzzer support, Micro USB port.
• Sensors: Integrated current and voltage sensors.
• ESC Signal: Supports PWM, Oneshot125, Oneshot42, Multishot, Dail 150, Dail 300, Dail 600.
• Firmware: Pre-flashed with Betaflight_4.3.0 JHEF 411.HEX.

Figure 1: Angled view of the JHEMCU F4 NOXE V3 F411 Flight Controller, showing its compact design and component layout.

Figure 2: Top-down view of the JHEMCU F4 NOXE V3 F411 Flight Controller, highlighting the main chip and various solder pads.

Figure 3: The JHEMCU F4 NOXE V3 F411 Flight Controller packaged with its connecting cables and vibration dampeners.

3. Specifications

4. Setup and Wiring

Careful wiring is crucial for the proper function and safety of your flight controller. Refer to the wiring diagram below for connections to your ESC, receiver, camera, VTX, and other peripherals.

Figure 4: Detailed wiring diagram for the JHEMCU F4 NOXE V3 F411 Flight Controller, illustrating connections for camera, VTX, receiver, and 4-in-1 ESC.

4.1. Wiring Instructions

1. Power Connection: Connect your 2S-6S LiPo battery to the main battery pads (VBAT and GND) on your 4-in-1 ESC. The ESC will then provide power to the flight controller. Ensure correct polarity.
2. ESC Connection: Connect the 4-in-1 ESC signal wires (S1, S2, S3, S4) and telemetry wire (if applicable) to the corresponding pads on the flight controller. Connect the ESC's current sensor output to the 'CURRENT' pad on the FC.
3. Receiver Connection:
   • For SBUS/IBUS/DSM receivers, connect the signal wire to the SBUS pad and power (VCC/3.3V) and GND.
   • For CRSF receivers (ELRs, TBS), connect TX to RX1 and RX to TX1, along with VCC and GND.
4. Camera Connection: Connect your FPV camera's video output to the 'VIDEO' pad, and power (VCC) and GND to the respective pads.
5. Video Transmitter (VTX) Connection: Connect the VTX video input to the 'VTX' pad, and power (10V or 5V) and GND to the respective pads. For digital HD VTX systems, connect the digital video signal and control wires as per the diagram.
6. Buzzer: Connect a 5V active buzzer to the BZ+ and BZ- pads.
7. LED Strip: Connect compatible LED strips to the LED pad and GND.

4.2. Initial Configuration (Betaflight)

1. Connect to PC: Connect the flight controller to your computer using a Micro USB cable.
2. Install Drivers: Ensure you have the necessary Betaflight drivers installed.
3. Open Betaflight Configurator: Launch the Betaflight Configurator software.
4. Connect: Select the correct COM port and click "Connect".
5. Firmware Flashing (if needed): If you need to update or re-flash firmware, select "JHEF411" as the target and flash the desired Betaflight version. Use the DFU button if the FC does not enter DFU mode automatically.
6. Configuration:
   • Calibrate Accelerometer: Place the drone on a level surface and calibrate the accelerometer.
   • Port Configuration: Configure UARTs for your receiver, VTX, GPS (if used), etc.
   • Receiver Setup: Select the correct receiver protocol (e.g., CRSF, SBUS) and verify stick inputs.
   • ESC Protocol: Select the appropriate ESC protocol (e.g., DShot600).
   • OSD Setup: Customize your On-Screen Display elements.
   • Modes: Set up flight modes (Arm, Angle, Acro, etc.) using your transmitter switches.
   • Save and Reboot: Always save your changes and allow the flight controller to reboot.

5. Operating Instructions

Once the flight controller is properly installed and configured, follow these general operating guidelines:

1. Pre-Flight Check: Before each flight, ensure all connections are secure, propellers are correctly installed, and battery is fully charged.
2. Arming: Arm the drone using the designated switch on your transmitter. Ensure you are in a safe area with sufficient space.
3. Flight: Operate the drone smoothly, making gradual control inputs. Monitor battery voltage and OSD information.
4. Disarming: Disarm the drone immediately after landing or in case of an emergency.
5. Post-Flight: Disconnect the battery after each flight. Review Black Box logs if troubleshooting or performance analysis is needed (Deluxe version).

6. Maintenance

Regular maintenance helps ensure the longevity and reliable performance of your flight controller:

• Keep Clean: Periodically clean the flight controller to remove dust, dirt, or debris. Use compressed air or a soft brush.
• Inspect Connections: Regularly check all solder joints and wire connections for looseness or damage. Re-solder or replace as necessary.
• Physical Damage: Inspect the board for any signs of physical damage, such as cracks or burnt components.
• Firmware Updates: Keep your Betaflight firmware updated to benefit from new features and bug fixes. Always back up your configuration before updating.
• Storage: Store the flight controller in a dry, anti-static environment when not in use.

7. Troubleshooting

If you encounter issues with your JHEMCU F4 NOXE V3 F411 Flight Controller, consider the following troubleshooting steps:

• No Power:
  • Check battery connection and voltage.
  • Verify all power wires are correctly soldered and not short-circuited.
  • Inspect for any burnt components on the FC or ESC.
• No Connection to Betaflight Configurator:
  • Ensure correct USB cable is used and it's not damaged.
  • Install or update VCP (Virtual COM Port) drivers.
  • Try a different USB port on your computer.
  • Press the DFU button while plugging in the USB cable to force DFU mode for flashing.
• Receiver Not Working:
  • Verify receiver wiring (signal, power, ground).
  • Ensure the correct UART is enabled for serial RX in Betaflight Ports tab.
  • Select the correct receiver protocol (e.g., CRSF, SBUS) in Betaflight Configuration tab.
  • Check binding between receiver and transmitter.
• Motors Not Spinning/Arming Issues:
  • Check ESC connections and ensure they are powered.
  • Verify ESC protocol in Betaflight matches your ESCs.
  • Calibrate ESCs (if required by your ESC firmware).
  • Check Betaflight "Motors" tab for individual motor response.
  • Review Betaflight "Setup" tab for any pre-arm warnings (e.g., accelerometer not calibrated, low voltage).
• OSD Not Displaying:
  • Ensure camera and VTX are correctly wired to the FC's OSD pads.
  • Enable OSD in Betaflight Configuration tab and configure elements in the OSD tab.

8. Warranty and Support

JHEMCU products are designed for reliability and performance. For technical support, troubleshooting assistance, or warranty inquiries, please contact your retailer or visit the official JHEMCU support channels. Keep your proof of purchase for warranty claims.

Please note that damage resulting from improper installation, incorrect wiring, or misuse is typically not covered under warranty. Always follow the instructions provided in this manual carefully.