HPXGRC F722 Flight Controller and 4-in-1 Brushless ESC Stack User Manual

Introduction

This manual provides detailed instructions for the HPXGRC F722 Flight Controller and its accompanying 4-in-1 Brushless ESC Stack. Designed for FPV freestyle racing drones, this stack integrates a high-performance flight controller with a robust Electronic Speed Controller (ESC) to deliver stable and responsive flight characteristics. Please read this manual thoroughly before installation and operation to ensure proper functionality and safety.

Package Contents

The HPXGRC F722 Flight Controller and ESC Stack package includes the following components:

1. HPXGRC F722 FC * 1PCS
2. HPXGRC 6S/8S ESC (55A, 60A, or 70A variant) * 1PCS
3. Screws * 4pcs
4. Nuts * 4pcs
5. Shims * 4pcs
6. Latex columns * 8pcs
7. Latex columns * 2pcs (additional)
8. SH1.0-4Pin dual head * 2pcs
9. SH1.0-6Pin dual head * 1pcs
10. SH1.0-8Pin dual head * 1pcs
11. XT60 connector * 1PCS
12. Electrolytic Capacitor (35V 1000uF Low ESR) * 1PCS

Specifications

F722 Flight Controller

HPXGRC 6S 55A ESC Specifications

HPXGRC 8S 60A ESC Specifications

HPXGRC 8S 70A ESC Specifications

General Dimensions

Setup

Mounting

The Flight Controller and ESC are designed with a 30.5mm x 30.5mm mounting hole pitch, compatible with various drone frames. Use the provided screws, nuts, shims, and latex columns for secure and vibration-dampened installation.

Wiring Diagram

Refer to the following diagram for proper connection of the flight controller to other components such as motors, receiver, VTX, camera, and LED strips. Ensure all connections are secure and correctly oriented before applying power.

Firmware Flashing

The flight controller supports BETAFLIGHT and INAV firmware. Connect the FC to your computer via the Type-C USB interface. Use the respective configurator software (Betaflight Configurator or INAV Configurator) to flash the DAKEFPVF722X8 firmware and configure your drone settings. Always back up your configuration before flashing new firmware.

Operating

Once the flight controller and ESC stack are correctly installed and configured, you can proceed with operating your FPV drone. The F722 FC features an ICM42688P gyroscope for precise flight control and a 16MB black box for recording flight data, which is invaluable for tuning and troubleshooting.

• Pre-Flight Checks: Always perform a thorough pre-flight check, including propeller direction, motor spin direction, battery voltage, and control surface response.
• Arming/Disarming: Follow your configured arming procedure in Betaflight/INAV. Ensure a clear area before arming.
• Flight Data Recording: The 16MB black box automatically records flight data. This data can be downloaded via the configurator software for analysis and tuning.
• OSD (On-Screen Display): The AT7456E OSD chip provides real-time flight information on your FPV feed. Configure OSD elements in your flight controller software.
• Digital Sky Terminal Support: The FC supports DJI/Vista digital FPV systems, allowing for direct connection and integration.

Maintenance

Regular maintenance helps ensure the longevity and reliable performance of your HPXGRC F722 stack:

• Visual Inspection: Periodically check for any loose connections, damaged wires, or signs of physical damage to the FC and ESC boards.
• Cleaning: Keep the boards free from dust, dirt, and debris. Use compressed air or a soft brush. Avoid using liquids directly on the electronics.
• Firmware Updates: Check for official firmware updates for Betaflight/INAV and BLHeli_S/Bluejay. Updates can provide performance improvements and bug fixes.
• Component Integrity: Ensure all mounting hardware (screws, nuts, latex columns) are secure and not overly tightened, which could damage the boards.
• Capacitor Check: Inspect the electrolytic capacitor for any bulging or leakage, which indicates failure.

Troubleshooting

• No Power/No Lights: Double-check battery connections, XT60 polarity, and ensure the battery is charged. Inspect for any short circuits.
• Motors Not Spinning: Verify ESC connections to the FC and motors. Ensure motor protocol (Dshot) is correctly configured in Betaflight/INAV. Check individual motor health in the configurator's motor tab.
• Unstable Flight: Review PID tuning settings in Betaflight/INAV. Check for excessive vibrations (black box logs can help diagnose this). Ensure propellers are balanced and undamaged.
• No FPV Feed: Check camera and VTX connections. Verify VTX power output and channel settings. Ensure OSD is enabled and configured correctly.
• USB Connection Issues: Try a different USB cable or port. Ensure necessary drivers are installed on your computer.

User Tips

• Start with Default PIDs: For initial flights, use the default PID settings in Betaflight/INAV. Tune incrementally based on flight performance and black box data.
• Proper Soldering: Ensure all solder joints are clean, shiny, and strong to prevent intermittent connections or shorts.
• Insulate Connections: Use heat shrink tubing or electrical tape on exposed solder joints and wires to prevent accidental shorts.
• Test Bench First: Before flying, always test motor direction and basic functionality on a test bench with propellers removed for safety.
• Keep Firmware Updated: Regularly check for and apply the latest stable firmware versions for both the FC (Betaflight/INAV) and ESCs (BLHeli_S/Bluejay) to benefit from performance improvements and bug fixes.

Warranty and Support

For warranty claims, technical support, or further assistance, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase. Always refer to the official product page or manufacturer's website for the most up-to-date information and resources.