IFlight Borg Mini F7 Stack (Mini 60 4in1 ESC) User Manual

1. Introduction

Welcome to the Borg Series! The IFLight Borg Mini F7 Stack, featuring the Borg F7 Mini Flight Controller and Mini 60 4in1 ESC, is engineered for high-performance FPV racing. This manual provides essential information for setting up, operating, and maintaining your new FPV stack to ensure optimal performance and longevity.

2. Product Features

• Wide Voltage Input: Supports 4S to 8S LiHV battery inputs, offering versatility for various racing setups.
• Integrated BEC: Features an integrated 12V BEC (Battery Eliminator Circuit) providing stable power for your VTX (Video Transmitter) system, with remote control capability to switch it on and off.
• Secure Connections: Utilizes FPC (Flexible Printed Circuit) cables for secure connections with ESCs and SH1.0 connectors for enhanced reliability across all other interfaces.
• High-Performance MCU: Equipped with STM32F722RET6 MCU for the Flight Controller and STM32G071N for the ESC, ensuring powerful processing.
• Blackbox Flash: Includes 32MB of Blackbox flash for detailed flight data logging.
• Multiple UARTs: Six UARTs available for connecting various peripherals like VTX, Receiver, and GPS.

3. Specifications

4. Package Contents

The IFLight Borg Mini F7 Stack package includes the following items:

• 1 x Borg Mini F7 Flight Controller
• 1 x Borg Mini 60 ESC
• 1 x Cable set
• 5 x Silicon grommets

5. Setup and Wiring

Careful wiring is crucial for the proper function and safety of your FPV drone. Refer to the diagram and suggestions below for connecting your Borg Mini F7 Stack.

5.1. Wiring Suggestions

• UART 1: Dedicated for VTX (Video Transmitter) - supports both HD and Analog systems.
• UART 2: Connect your Receiver (e.g., Crossfire, ELRS, FrSky).
• UART 3: Can be used for GPS or other sensors requiring a serial port.
• UART 4: Primarily for GPS modules.
• UART 5: Can be used for GPS or other sensors requiring a serial port.
• UART 6: For ESC Telemetry, allowing the FC to receive data from the ESCs.

6. Operating Instructions

Once the Borg Mini F7 Stack is correctly installed and wired into your FPV drone, follow these general steps for operation:

1. Firmware Flashing: Connect the flight controller to your computer via USB. Use the Betaflight Configurator or INAV Configurator software to flash the appropriate firmware target (IFLIGHT_BLITZ_F722 for FC, IFLIGHT_BLITZ_G3 32.9 for ESC).
2. Configuration: Configure all necessary settings within the configurator software, including PID tuning, motor directions, receiver protocols, OSD elements, and VTX settings.
3. Calibration: Calibrate the accelerometer and gyroscope. Ensure your ESCs are calibrated if required by your setup.
4. Pre-Flight Checks: Before each flight, perform thorough pre-flight checks. Verify motor spin direction, control surface response, and FPV feed.
5. Power On: Connect your LiPo battery. The FC and ESC will initialize. Listen for the ESC beeps indicating successful arming.
6. Arming: Arm your drone using your radio transmitter. Ensure you are in a safe environment.

7. Maintenance

Regular maintenance helps prolong the life of your FPV components:

• Visual Inspection: Periodically inspect the FC and ESC for any signs of physical damage, loose connections, or burnt components.
• Cleaning: Gently clean the boards with isopropyl alcohol and a soft brush to remove dust, dirt, or debris. Ensure no moisture remains before powering on.
• Connection Integrity: Check all soldered joints and connectors for secure attachment. Re-solder any cold joints or replace damaged cables.
• Firmware Updates: Keep your FC and ESC firmware updated to benefit from performance improvements and bug fixes. Always back up your configuration before updating.
• Grommets: Ensure silicon grommets are in good condition to absorb vibrations and protect the stack. Replace if worn or damaged.

8. Troubleshooting

If you encounter issues, consider the following troubleshooting steps:

• No Power/Boot:
  • Check battery connection and voltage.
  • Inspect power cables for continuity and shorts.
  • Verify USB connection to PC.
• Motors Not Spinning/Incorrect Direction:
  • Ensure ESCs are armed and calibrated.
  • Check motor wiring to ESCs.
  • Verify motor direction in Betaflight/INAV configurator and BLHeliSuite32.
  • Check for bent motor shafts or damaged propellers.
• No FPV Feed:
  • Verify VTX power and signal connections to FC.
  • Check VTX channel and power settings.
  • Ensure FPV camera is powered and connected correctly.
• Unstable Flight:
  • Review PID tuning settings.
  • Check for vibrations (e.g., loose props, motor issues).
  • Ensure FC is soft-mounted correctly with grommets.
  • Verify correct orientation of the FC in the configurator.
• Connection Issues (USB/Receiver):
  • Try a different USB cable or port.
  • Ensure correct UART is selected for the receiver in Betaflight/INAV.
  • Verify receiver is bound to the radio transmitter.

9. User Tips

• Always double-check all wiring connections before applying power to prevent damage to components.
• Ensure proper firmware flashing and configuration using the latest Betaflight or INAV configurator for optimal performance.
• Utilize the Blackbox feature to log flight data, which can be invaluable for diagnosing flight performance issues and fine-tuning PID settings.
• When soldering, use appropriate flux and ensure clean, strong solder joints to avoid intermittent connections or shorts.

10. Warranty and Support

For detailed warranty information, technical support, and service inquiries regarding your IFLight Borg Mini F7 Stack, please refer to the official IFLight website or contact your authorized retailer. Keep your proof of purchase for any warranty claims.