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Zero star

Auodit·flyamaster·Hardware/zero star/zero star.kicad_pcb

Zero star PCB layout, top view — open source STM32 board by Auodit

About the Zero star PCB

Zero star is an open source STM32 PCB design by Auodit, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 38 × 38 mm, with 127 components from 48 distinct parts.

Its main chip is the STM32F405RGTx, from the STM32 family. Other key parts include the SY8303AIC, RT9193-33, SPL06-001, MPU-6050 and QMC5883L. By type, the board carries 45 capacitors, 34 connectors, 22 resistors, 10 ICs, 7 diodes and 4 inductors.

It belongs with the robotics & motion designs in this gallery.

From the project

STM32F407 Flight Controller with FreeRTOS

项目名称: FLYAMASTER - F405 Mini 高性能穿越机飞控 版本: v2.4.0 最后更新: 2026-01-23 状态: 🟢 开发中 (软件完成，硬件设计完成，等待验证) 作者: LI 助手: Doro (Desktop Pet / 桌面宠物)

FLYAMASTER 是一款基于 STM32F405RGT6 的高性能、开源、易扩展的四轴飞行控制器。

这个项目源于我对无人机的热爱。从第一次看到穿越机在空中翻滚、俯冲的那一刻起，我就被这种自由飞翔的感觉深深吸引。作为一名嵌入式开发者，我不满足于仅仅使用现成的飞控，而是想要从零开始，亲手打造一款属于自己的飞行控制器。

这不仅仅是一个技术项目，更是一段探索之旅——从最初的 Mahony 姿态解算调试，到 PID 参数的反复调优；从 DMA 通道冲突的抓狂，到最终看到四轴稳稳悬停的那一刻的成就感。每一行代码、每一条 PCB 走线，都凝聚着对飞行的热爱和对技术的追求。

Main components on the Zero star

STM32F405RGTxSY8303AICRT9193-33SPL06-001MPU-6050QMC5883LW25Q128JVEAT7456E

Zero star bill of materials (BOM)

127 components, 48 distinct parts.

QtyPartRefs
1
STM32F405RGTx
U1
2
SY8303AIC
U2, U3
2
RT9193-33
U4, U10
1
SPL06-001
U5
1
MPU-6050
U6
1
QMC5883L
U7
1
W25Q128JVE
U8
1
AT7456E
U9
1
SS8050
Q1
1
8Mhz
Y1
1
27Mhz
Y2
28
Conn_01x01
J2, J7, J8, J9, J10, J11, J12, J13 +20
1
1-0401FBV0T
上位机
TAD
J3
1
4-in-1 ESC
J4
1
1-0401FBV0T
GPS
TAD
J5
1
1-0601FBV0T
VTX
TAD
J6
1
1-0401FBV0T
ELRS
TAD
J22
1
1-0601FBV0T
光流
TAD
J23
1
Conn_01x01
BZ+1
1
SW_SPST
SW1
Show 28 more
QtyPartRefs
4
LED_0603
D1, D5, D8, D9
1
SMAJ33A
D2
1
1N4148
D7
1
SS34
D12
1
6.8uH
L1
1
4.7uH
L2
1
600R/2A
L4
1
300R/1A
L5
24
100nF
C1, C2, C3, C4, C8, C12, C13, C14 +16
6
22uF
C5, C9, C15, C18, C21, C46
2
2.2uF
C6, C7
4
22pF
C10, C11, C39, C40
2
10uF
C19, C43
2
22nF
C20, C45
1
2.2nF
C25
1
220nF
C34
2
47uF
C35, C42
1
1uF
C48
4
10k
R1, R3, R4, R11
6
1kΩ
R2, R16, R21, R25, R26, R27
2
15kΩ
R5, R10
1
200kΩ
R6
1
110k
R7
1
210kΩ
R8
1
100kΩ
R9
2
4.7kΩ
R14, R15
1
75Ω
R19
3
10KΩ
R20, R23, R24

Zero star design files

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

Zero star: common questions

What microcontroller does the Zero star use?

The Zero star is built around the STM32F405RGTx, from the STM32 family.

How big is the Zero star PCB?

The Zero star measures 38 × 38 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Zero star?

127 components, from 48 distinct parts. The full bill of materials is listed on this page.

Where can I download the Zero star design files?

From the Auodit/flyamaster repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Zero star design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which Auodit chose for the repository.

Can I test firmware for the Zero star 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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