HardLabs

Flightcontroller

nimaakbari2006·fpv-drone-flight-controller·FlightController/Flightcontroller.kicad_pcb

Flightcontroller PCB layout, top view — open source STM32 board by nimaakbari2006

About the Flightcontroller PCB

Flightcontroller is an open source STM32 PCB design by nimaakbari2006, published on GitHub under the MIT license. It is a 4-layer board measuring 36 × 36 mm, with 67 components from 30 distinct parts.

Its main chip is the STM32F405RGTx, from the STM32 family. Other key parts include the ICM-42688-P, SPX3819M5-L-3-3, W25Q128JVS and AT7456ELAH_C42388749. By type, the board carries 31 capacitors, 18 resistors, 5 ICs, 5 connectors, 2 crystals and 2 switches.

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

From the project

Custom power distribution board and STM32F405 flight controller PCBs designed in KiCad for a 5-inch FPV drone. Dual synchronous buck converters, ICM-42688-P gyro, 4-layer layout, Betaflight-compatible.

Two custom PCBs designed from scratch in KiCad for a 5-inch FPV drone, plus complete component selection and compatibility validation for the full build. This project covers the full stack: switching power supply design, a Betaflight-compatible flight controller, and systems-level integration of the entire aircraft.

The goal was to replace the stock electronics of a 5-inch FPV drone with custom-designed hardware, as an electrical engineering portfolio project. Two boards were designed:

Main components on the Flightcontroller

ICM-42688-PSPX3819M5-L-3-3W25Q128JVSAT7456ELAH_C42388749STM32F405RGTx

Flightcontroller bill of materials (BOM)

67 components, 30 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ICM-42688-P
U1
1
SPX3819M5-L-3-3
U2
1
W25Q128JVS
U3
1
AT7456ELAH_C42388749
U4
1
STM32F405RGTx
U5
1
2N7002
Q1
1
27MHz
Y1
1
8MHz
Y2
1
USB_C_Receptacle_USB2.0_16P
J1
1
LED Strip
J2
1
Camera
J3
1
VTX
J4
1
GPS
J5
1
Buzzer
BZ1
2
SW_Push
SW1, SW2
1
D_Schottky
D1
1
600Ω @ 100MHz
FB1
3
1u
C1, C5, C31
3
2.2u
C2, C22, C23
18
100n
C3, C6, C7, C10, C11, C12, C13, C14 +10
Show 10 more
QtyPartRefs
1
10n
C4
4
22p
C8, C9, C19, C20
1
4.7n
C16
1
4.7u
C29
2
5.1K
R1, R2
2
100K
R3, R12
9
10K
R4, R7, R8, R9, R14, R15, R16, R17 +1
1
330
R5
2
75
R6, R10
2
1K
R11, R13

Flightcontroller design files

The KiCad project lives in the nimaakbari2006/fpv-drone-flight-controller repository on GitHub; these links point at the commit this page was built from.

Flightcontroller: common questions

What microcontroller does the Flightcontroller use?

The Flightcontroller is built around the STM32F405RGTx, from the STM32 family.

How big is the Flightcontroller PCB?

The Flightcontroller measures 36 × 36 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Flightcontroller?

67 components, from 30 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 Flightcontroller design files?

From the nimaakbari2006/fpv-drone-flight-controller repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Flightcontroller design in my own project?

Yes, under the terms of its MIT license, which nimaakbari2006 chose for the repository.

Can I test firmware for the Flightcontroller 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.

More boards in fpv-drone-flight-controller

Similar boards