Downloading Model Assistance

vasyl

vasyl

image (2).png

Image

flux

I’ll add this provided board photo as a stable project asset and update the README image section to use it.

flux

Done — I added the provided board photo as a project asset and updated the README to reference the stable local asset path.
vasyl

vasyl

Can you fix the formatting on page Betaflight Firmware?

flux

I’ll clean up the Betaflight Firmware document formatting while preserving its content, then verify the result.

flux

Done — I cleaned up the Betaflight Firmware page with proper Markdown headings, bullet lists, numbered setup steps, a fenced CLI code block, and a safety/bring-up checklist.
Review firmware mapping
Fix README images
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Betaflight Firmware
Complete Betaflight configuration and setup guide for the STM32F401CCU6-based flight controller PCB.
Betaflight Configuration
This flight controller is intended to be compatible with Betaflight firmware and includes a resource mapping for the onboard peripherals.
Note: Verify the exact MCU target and pin mapping against the schematic before flashing or flying.
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Image

Board: AIRB/OMNIBUSF4SD(STM32F405). This target provides optimal compatibility with the STM32F4 architecture and includes support for all integrated peripherals including SD card functionality.
CLI Resource Configuration
Copy and paste the following resource mapping into the Betaflight CLI, then run save.
Text
# STM32F4 Flight Controller Resource Mapping
resource BEEPER 1 B04
resource MOTOR 1 B00
resource MOTOR 2 B01
resource MOTOR 3 C06
resource MOTOR 4 C07
resource MOTOR 5 A01
resource MOTOR 6 A08
resource LED_STRIP 1 B06
resource SERIAL_TX 1 A09
resource SERIAL_TX 3 B10
resource SERIAL_RX 1 A10
resource SERIAL_RX 3 B11
resource INVERTER 3 C09
resource INVERTER 6 C08
resource LED 1 B05
resource SPI_SCK 1 A05
resource SPI_SCK 2 B13
resource SPI_SCK 3 C10
resource SPI_SDI 1 A06
resource SPI_SDI 2 B14
resource SPI_SDI 3 C11
resource SPI_SDO 1 A07
resource SPI_SDO 2 B15
resource SPI_SDO 3 C12
resource ADC_BATT 1 C02
resource ADC_RSSI 1 A00
resource ADC_CURR 1 C01
resource BARO_CS 1 B03
resource SDCARD_CS 1 B12
resource SDCARD_DETECT 1 B07
resource OSD_CS 1 A15
resource GYRO_EXTI 1 C04
resource GYRO_CS 1 A04
resource USB_DETECT 1 C05
save
Hardware Feature Mapping
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Image

Motor Outputs
  • MOTOR 1-4: Primary quadcopter motor outputs: B00, B01, C06, C07
  • MOTOR 5-6: Additional outputs for hex/octo configurations: A01, A08
  • Supported protocols may include DShot, Multishot, and standard PWM depending on firmware target and timer support.
Sensor Configuration
  • Gyroscope / Accelerometer: MPU6050/MPU-6000-class IMU on SPI1
    • CS: A04
    • EXTI: C04
  • Barometer: MS5611 on SPI1
    • CS: B03
  • OSD: MAX7456 on SPI2
    • CS: A15
  • SD Card / Blackbox Logging
    • CS: B12
    • Detect: B07
UART Mapping
  • UART1: GPS or MSP
    • TX: A09
    • RX: A10
  • UART3: SBUS / telemetry with inverter
    • TX: B10
    • RX: B11
  • Inverters:
    • UART3 inverter: C09
    • UART6 inverter: C08
Analog Inputs
  • Battery voltage: C02 / ADC_BATT
  • Current sensor: C01 / ADC_CURR
  • RSSI: A00 / ADC_RSSI
Initial Setup Steps
1. Flash Betaflight Firmware
  1. Connect the flight controller via USB.
  2. Open Betaflight Configurator.
  3. Go to the Firmware Flasher tab.
  4. Select the appropriate STM32F4 target for this board.
  5. Choose the latest stable firmware.
  6. Enable Full Chip Erase.
  7. Flash the firmware.
2. Apply Resource Configuration
  1. Connect to the flight controller in Betaflight Configurator.
  2. Open the CLI tab.
  3. Paste the resource configuration from this document.
  4. Type save and press Enter.
  5. Wait for the controller to reboot.
3. Sensor Calibration
  1. Place the board flat and keep it still.
  2. Go to the Setup tab.
  3. Click Calibrate Accelerometer.
  4. Let the gyroscope auto-calibrate on startup while the board remains still.
Bring-Up Checklist
Before connecting motors or propellers:
  • Confirm the board powers up correctly from USB.
  • Confirm the 5V rail is stable.
  • Confirm Betaflight connects over USB.
  • Confirm the accelerometer and gyroscope move in the correct directions.
  • Confirm UART ports are assigned correctly.
  • Confirm motor output order without propellers installed.
  • Confirm receiver input and failsafe behavior.
  • Confirm OSD output before flight use.
Safety Note
Always test without propellers installed until firmware configuration, motor direction, receiver mapping, and failsafe behavior are confirmed.

  • Betaflight Firmware

  • Betaflight Configuration

  • Recommended Target

  • CLI Resource Configuration

  • Hardware Feature Mapping

  • Motor Outputs

  • Sensor Configuration

  • UART Mapping

  • Analog Inputs

  • Initial Setup Steps

  • 1. Flash Betaflight Firmware

  • 2. Apply Resource Configuration

  • 3. Sensor Calibration

  • Bring-Up Checklist

  • Safety Note

Documents

  • README

  • Betaflight Firmware

  • Why the STM32F405RGT6

  • Skeleton and Muscles of a Quadcopter

Assets

Assembled flight controller photo

Assembled flight controller photo

assembled-flight-controller-photo.png
image1

image1

image1
STM32F4 Flight Controller Template image.png

STM32F4 Flight Controller Template image.png

STM32F4 Flight Controller Template imageThumbnail
Assembled power modules photo

Assembled power modules photo

assembled-power-modules-photo.png
Assembled board photo

Assembled board photo

assembled-board-photo.png

STM32F4 Flight Controller Template

STM32F4 Flight Controller Template thumbnail
STM32F4-based flight controller featuring a 6-axis IMU (accelerometer + gyroscope) for stable flight dynamics and a MAX7456EUI OSD generator for real-time video overlay of flight telemetry. #drone #flightController #STM32F405 #controller #OSD #video #referenceDesign #project #MPU6000 #template

Properties

creativecommons.org/licenses/by/4.0/

Pricing & Availability

Distributor

Qty 1

Arrow

$7.19–$12.51

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$12.62–$12.63

HQonline

$8.97–$9.06

LCSC

$24.55–$24.72

Mouser

$14.57

TME

$17.52–$17.57

Verical

$5.60–$38.27

Controls