iFlight Beast/Blitz F7 55A V2 Flight Controller User Manual

Introduction

The iFlight Beast/Blitz F7 55A V2 is a high-performance All-In-One (AIO) Flight Controller (FC) designed for FPV drones. This compact board integrates a powerful MCU and Electronic Speed Controller (ESC) into a 25.5x25.5mm mounting pattern, offering a lightweight and efficient solution for your drone builds. It supports advanced flight firmware like Betaflight and Emuflight, and is compatible with both digital and analog FPV systems.

This manual provides essential information for the safe and effective setup, operation, and maintenance of your iFlight Beast/Blitz F7 55A V2 Flight Controller.

Safety Reminders

• Voltage Compatibility: The DJI plug&play port on this board passes through VBAT (battery voltage) without regulation. The Caddx Vista supports up to 26.4V (6S), while the DJI Air Unit supports up to 17.6V (4S). Do not plug in your DJI Air Unit directly when flying with a 6S battery, as this will damage the unit. Ensure your FPV system's voltage input matches your battery voltage or use an external BEC if necessary.
• Capacitor Usage: For small motor 4S builds, an additional capacitor of at least 16V/220uF is recommended. For 6S builds, use a capacitor of 35V or even 50V. Larger motors draw more current and can cause higher voltage spikes and more serious back EMF (motor braking effect). Always add sufficiently large, low ESR capacitors to the AIO battery pad or your battery lead to protect the board, especially with aggressive motors. While capacitors are included, it is crucial to ensure adequate protection for your specific setup. Smaller boards inherently have less onboard capacitance, necessitating external capacitors.

Package Contents

Verify that all items are present in your package:

• Beast F7 AIO Flight Controller x 1
• Capacitor 470uF/35V x 2
• XT60 16AWG cable 100mm x 1
• XT30U 18AWG cable 70mm x 1
• 14AWG Silicone Cable Red 100mm x 1
• 14AWG Silicone Cable Black 100mm x 1
• 1.0-7P cable 50mm-28mm x 1
• 1.0-7P cable 50mm x 1
• M2 silicon grommets x 4
• M2*12mm screws x 8
• M2 Transparent Nylon Nut x 8
• 0.8mm black Heat shrink tube 10mm x 8

Setup and Installation

Follow these steps for proper installation of your flight controller:

1. Mounting: The board features a 25.5*25.5mm mounting pattern with φ3mm holes. Use the provided M2 silicon grommets, screws, and nylon nuts to securely mount the flight controller to your drone frame.
2. Motor Connections: Solder your motor wires directly to the designated motor pads (M1, M2, M3, M4) on the flight controller. Ensure correct motor direction and wiring according to your drone's configuration.
3. Power Connection: Connect your battery lead (XT60 or XT30U cable) to the main battery pads on the FC. Remember to install the recommended low ESR capacitors (470uF/35V or higher for 6S) across the main battery pads to filter voltage spikes.
4. FPV System Connection:
   • DJI Digital FPV: Utilize the dedicated DJI plug&play port for easy connection. Refer to the safety reminders regarding VBAT passthrough for 6S setups.
   • Analog FPV: Connect your analog video transmitter (VTX) and camera to the appropriate video input/output and power pads.
5. Receiver Connection: Connect your receiver to one of the available UARTs. The board provides 5 UARTs for various peripherals.
6. Peripheral Connections: Connect any other peripherals such as GPS, LED strips, or buzzers to the remaining UARTs or dedicated pads as required by your setup.

Operating Instructions

Once installed, configure your flight controller using compatible firmware:

1. Firmware Flashing: The FC comes pre-flashed with IFLIGHT_F745_AIO_V2 firmware. The ESC firmware is G-H-30 BLS. For updates or custom configurations, connect the board via the Micro-USB port and use the Betaflight or Emuflight configurator software.
2. Configuration: Follow the instructions within your chosen flight controller configurator (e.g., Betaflight, Emuflight) to set up your drone's parameters, including motor protocols, PID tuning, OSD settings, and receiver protocols.
3. FPV Operation: The board supports both digital and analog FPV systems. Ensure your FPV camera and video transmitter are correctly connected and configured for your desired FPV experience.
4. Altitude Hold: Note that this flight controller does not feature an onboard barometer for altitude hold functions.

Maintenance

To ensure the longevity and optimal performance of your flight controller:

• Regular Inspection: Periodically inspect the board for any signs of physical damage, loose connections, or solder joint issues.
• Cleaning: Keep the board clean from dust, dirt, and moisture. Use isopropyl alcohol and a soft brush if cleaning is necessary.
• Firmware Updates: Keep your flight controller and ESC firmware updated to the latest stable versions to benefit from performance improvements and bug fixes.
• Capacitor Health: Check the condition of your external capacitors. Swollen or damaged capacitors should be replaced immediately to prevent damage to the FC.

Troubleshooting

• No Power/Board Not Responding:
  • Check all power connections, including battery lead and main power pads.
  • Ensure the correct voltage input (2-6S LIPO) is being supplied.
  • Verify that the external capacitors are correctly installed and not damaged.
• FPV System Issues (DJI Air Unit):
  • If using a 6S battery, ensure you are not directly powering a DJI Air Unit (max 4S) from the VBAT passthrough port. Use an external BEC to step down the voltage if needed.
• Unstable Flight/Motor Twitches:
  • Ensure adequate low ESR capacitance is installed, especially with powerful motors or 6S setups, to mitigate voltage spikes and back EMF.
  • Check motor wiring and ensure all motors are spinning in the correct direction.
  • Review PID tuning and other flight controller settings in your configurator.
• Connection Issues (USB):
  • Try a different Micro-USB cable.
  • Ensure correct drivers are installed on your computer for the STM32F745 MCU.

Specifications

User Tips

• Capacitor Importance: Always prioritize installing the recommended low ESR capacitors. This is crucial for filtering voltage spikes and protecting your flight controller, especially when using 6S batteries or high-power motors.
• Firmware Management: Regularly check for and apply stable firmware updates for both the FC and ESC to ensure optimal performance and access to the latest features.
• Wiring Cleanliness: Keep your wiring as neat and short as possible to minimize electrical noise and potential interference.

Warranty and Support

For warranty claims, technical support, or further assistance, please contact the manufacturer or your point of purchase. Keep your proof of purchase for any warranty-related inquiries.