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Drone fc v3

Ethansuttor·drone_PCB·Claude Atempt/drone_fc_v3.kicad_pcb

Drone fc v3 PCB layout, top view — open source STM32 board by Ethansuttor
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About the Drone fc v3 PCB

Drone fc v3 is an open source STM32 PCB design by Ethansuttor, published on GitHub. It is a 2-layer board measuring 30.1 × 33.4 mm, with 53 components from 42 distinct parts.

Its main chip is the AP2112K-3.3, from the STM32 family. Other key parts include the USBLC6-2SC6 and GD25Q16ETIGR. By type, the board carries 24 capacitors, 14 resistors, 7 connectors, 3 ICs, 3 diodes and 1 transistor.

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

From the project

An 80×80 mm STM32F405 flight controller for a 4S freestyle quad, running Betaflight off a custom target I wrote. I built it to find out whether I could take an embedded system from a blank schematic all the way to something that actually flies.

An 80×80 mm STM32F405 flight controller for a 4S freestyle quad, running Betaflight off a custom target I wrote. I built it to find out whether I could take an embedded system from a blank schematic all the way to something that actually flies.

Boards are at JLCPCB. Nothing has been powered on yet, so treat everything below as designed-and-verified-on-paper, not proven.

Drone fc v3, from the project README
From the project README

Main components on the Drone fc v3

AP2112K-3.3USBLC6-2SC6GD25Q16ETIGR

Drone fc v3 bill of materials (BOM)

53 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AP2112K-3.3
STM32F405RGT6
U1
1
USBLC6-2SC6
AP2112K-3.3
U2
1
GD25Q16ETIGR
TLV73333PDBVR
U3
1
2N7002
Q1
1
CONN_01X05
USB-C-16P
J1
1
CONN_01X04
Receiver
J3
1
UART3 spare
J4
1
5V in (MBEC6S)
J5
1
USART6 spare
J6
1
I2C1 spare
J7
1
SWD
J8
1
LED
LED1
1
C173413
SS34
D1
1
SS34
1N4148WS
D2
1
C8678
BZT52C3V3
D3
2
1UF
10uF
C1, C3
2
1UF
100nF
C2, C4
1
10UF
1uF
C5
1
10UF
100nF
C6
1
10NF
1uF
C7
Show 22 more
QtyPartRefs
3
2.2UF
100nF
C10, C12, C13
4
100NF
100nF
C11, C25, C26, C27
1
4.7uF
C14
1
1uF
C15
1
10nF
C16
1
100nF
C17
1
100NF
2.2uF
C20
1
22PF
2.2uF
C21
1
22PF
100nF
C22
1
22pF*
C23
1
100NF
22pF*
C24
1
4.7UF
100nF
C28
2
5.1K
10k
R1, R2
2
10K
5.1k
R3, R4
3
10k
R5, R10, R11
1
100K
10k
R6
1
10K
100k
R7
1
3.24K
10k
R8
1
10K
1k
R9
1
100R
R12
1
10K
10k
R13
1
470
330R
R14

Drone fc v3 design files

The KiCad project lives in the Ethansuttor/drone_PCB repository on GitHub; these links point at the commit this page was built from.

Drone fc v3: common questions

What microcontroller does the Drone fc v3 use?

The Drone fc v3 is built around the AP2112K-3.3, from the STM32 family.

How big is the Drone fc v3 PCB?

The Drone fc v3 measures 30.1 × 33.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Drone fc v3?

53 components, from 42 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 Drone fc v3 design files?

From the Ethansuttor/drone_PCB 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 Drone fc v3 design in my own project?

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

Can I test firmware for the Drone fc v3 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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