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Falcon-F4-Flight controller

AT882·Falcon-F4-Flight-controller·Hardware Falcon F4/PCB/Falcon F4 Flightcontroller.kicad_pcb

Falcon-F4-Flight controller PCB layout, top view — open source STM32 board by AT882
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About the Falcon-F4-Flight controller PCB

Falcon-F4-Flight controller is an open source STM32 PCB design by AT882, published on GitHub. It is a 4-layer board measuring 39.5 × 40 mm, with 63 components from 34 distinct parts.

Its main chip is the STM32F405RGTX, from the STM32 family. Other key parts include the AT7456E, BMP388, ICM-42688-V, W25Q128JVP and TPS54202DDC. By type, the board carries 30 capacitors, 19 resistors, 7 ICs, 3 switches, 2 crystals and 1 connector.

It belongs with the robotics & motion, sensors and power & battery designs in this gallery.

From the project

Custom STM32F405-based flight controller designed for UAV, FPV and aerial robotics applications.

Custom STM32F405-based flight controller designed for UAV, FPV and aerial robotics applications.

The Falcon F4 Flight Controller is a custom-designed flight-control board based on the STM32F405RGT6 ARM Cortex-M4 microcontroller.

The board integrates the core hardware required for a compact UAV flight-control system, including a 6-axis IMU, barometric pressure sensor, analog video OSD, external SPI Flash memory, regulated power supplies, battery-voltage monitoring, current sensing, ESC interfaces, camera and VTX interfaces, USB connectivity and SWD debugging.

Main components on the Falcon-F4-Flight controller

AT7456ESTM32F405RGTXBMP388ICM-42688-VW25Q128JVPTPS54202DDCXC6206PXXXMR

Falcon-F4-Flight controller bill of materials (BOM)

63 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AT7456E
IC1
1
STM32F405RGTX
STM32F405RGTx
U1
1
BMP388
U2
1
ICM-42688-V
U3
1
W25Q128JVP
U4
1
TPS54202DDC
U5
1
XC6206PXXXMR
XC6206PxxxMR
U6
1
27MHZ
27Mhz
Y1
1
8MHZ
8Mhz
Y2
1
CON
J5
1
S1
S1
1
S2
S2
1
BOOT
SW1
1
15UH
15uH
L1
1
10UF
10uF
C1
15
100NF
100nF
C2, C3, C4, C5, C6, C7, C10, C11 +7
4
22UF
22uF
C8, C9, C19, C20
4
10PF
10pF
C13, C14, C29, C30
1
75PF
75pF
C16
1
10UF
10uF
C17
Show 14 more
QtyPartRefs
2
1UF
1uF
C23, C24
1
10NF
10nF
C26
1
2.2UF
2.2uF
C27
2
75R
R1, R2
4
5.1K
R3, R4, R16, R17
1
1.5K
R5
1
511K
R6
1
105K
R7
1
49.9R
R8
1
100K
R9
1
13.3K
R10
2
10K
R11, R15
4
1K
R12, R13, R14, R19
1
20K
R18

Falcon-F4-Flight controller design files

The KiCad project lives in the AT882/Falcon-F4-Flight-controller repository on GitHub; these links point at the commit this page was built from.

Falcon-F4-Flight controller: common questions

What microcontroller does the Falcon-F4-Flight controller use?

The Falcon-F4-Flight controller is built around the STM32F405RGTX, from the STM32 family.

How big is the Falcon-F4-Flight controller PCB?

The Falcon-F4-Flight controller measures 39.5 × 40 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Falcon-F4-Flight controller?

63 components, from 34 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Falcon-F4-Flight controller design files?

From the AT882/Falcon-F4-Flight-controller repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Falcon-F4-Flight controller design in my own project?

The repository has no license, so all rights stay with AT882. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Falcon-F4-Flight controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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