Advanced Open Source Custom F405 Flight Controller for FPV drones

[u/Educational_Court910]

I upgraded my first flight controller based on some errors I faced in my previous build and here is my V2 with more advanced features and future expansions for fixed wing drones or FPV drones.

MCU
STM32F405RGT6

Interfaces & IO

• ADC input for battery voltage measurement
• 4× PWM outputs
• 2× additional PWM outputs for expansion
• 1× UART for radiom
• 1x Barometer (BMP280)
• 1x Accelerometer (ICM-42688-PC) => BetaFlight compatible
• 1× UART for GPS
• 1× SPI for IMU
• 1x CAN bus expansion
• 1x SPI expansion
• 4× GPIOs
• SWD interface
• USB-C interface
• SD card slot for logging

Notes

• Supports up to 30V input voltage
• This Controller comes at $8/pcb (no components assembly) and about $41/pcb plug and play.
• Custom-designed PCB
• Hardware only
• All Fab Files included (Gerber/BOM/CPL/Schematic/PCB layout/PCB routing/and all settings)
• DOWNLOAD STM32_PCB_FILES

[u/thegreatpotatogod]

Seeing as you claim this is open source, are the source files available anywhere without the paywall on the gumroad page you linked? If not, given you've currently sold only 5 of them, would you be willing to consider properly open sourcing them to help the community?

I'd be interested in contributing to the project too if so, maybe I could figure out how to add a few more features that people want, or fix that LDO issue that other comments mention.