RUSHFPV RUSH BLADE V2 Digital Stack - F722 HD FC & Extreme 60A 128K 32Bit ESC

FREQUENTLY ASKED QUESTIONS (FAQ)

Q: What Betaflight firmware target should I use for the Digital FC? The specific Betaflight firmware target is RUSH_BLADE_F7_HD. The unified target is STM32F7X2.

Q: Can I use this with an analog VTX and camera?While you can physically wire an analog system to the 5V and video pads, this board lacks the AT7456E OSD chip found on the analog version. This means you will not have Betaflight OSD overlay (battery voltage, crosshair, warnings) on your analog video feed. It is highly recommended to use the Analog version of this stack for analog builds.

Q: Does the ESC require throttle calibration? If you are using DSHOT protocols in Betaflight, there is no need to calibrate the throttle. If using standard PWM/Multishot, calibration is required.

Q: What is the maximum voltage this stack can handle? Both the Flight Controller's BEC and the EXTREME 60A ESC are rated to handle up to 36V, making them fully compatible with 3S through 6S LiPo batteries.

Q: What are the UARTs used for? The FC has 5 UARTs. UARTs are used to connect serial devices like SBUS/CRSF receivers, GPS modules, HD VTX MSP canvas mode (DJI/Walksnail), and Bluetooth modules.

Q: Do I need to install a capacitor? Yes. It is highly recommended to connect a Low ESR capacitor (35V 470uF or above) in parallel at the XT60 pads to filter out voltage spikes and electrical noise.

Q: How do I put the flight controller into DFU mode for a firmware flash? If it's your first time or it is bricked, short the physical BOOT pad on the FC while plugging it into your PC via USB. You can also select the "activate boot loader / DFU" option in the Betaflight Setup menu.

Q: My PC isn't recognizing the FC in DFU mode. What do I do? You likely need to update the drivers. Download and open the Zadig tool, put the FC in DFU mode, select "STM32 BOOTLOADER" from the device list, set the driver to "WinUSB", and click "Reinstall Driver".

Q: What does the Demag Compensation setting in the ESC do? Demag compensation protects the motor from stalling caused by long winding demagnetization times after commutation. If you experience motor stuttering on quick throttle punches, turning this setting to Low or High can prevent sync loss.

Q: What PWM frequency should I run on the EXTREME 60A ESC? The F4 processor allows programmable frequencies from 24KHz up to 128KHz. Higher PWM frequencies can make motors run much smoother and move disturbing throttle bumps to less sensitive RPM ranges. 48KHz or 96KHz are common starting points.

Q: Can I run 8 motors with this flight controller? Yes, the FC breaks out 8 total PWM motor/servo output pads (M1 through M8), allowing for X8 Coaxial or true Octocopter configurations.

Q: How much current can the 5V BEC supply? The onboard synchronous rectifier BEC provides a highly stable 5V output at up to 3 Amps, which is plenty of power for receivers, LEDs, and GPS modules.

Q: What does the "Brake On Stop" ESC feature do? When enabled, it applies a braking force to the motor when the throttle reaches zero. This is primarily intended for fixed-wing crafts with folding propellers, not standard freestyle quadcopters.

Q: Is there an onboard barometer? Yes, the RUSH BLADE V2 flight controller features a built-in BMP280 barometer for altitude tracking and GPS rescue features.

Q: Does the ESC provide telemetry data? Yes, by wiring the "TELE" pin from the ESC to an open RX UART on the flight controller, the ESC will transmit real-time telemetry including RPM, temperature, and current draw.

Q: Are the motor direction settings configurable without re-soldering wires? Yes, using the BLHeli_32 configurator, you can set the motor direction to Forward, Reverse, Bidirectional, or Bidirectional Reversed entirely through software.