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Ai pcb

123Nert·ai_pcb

Ai pcb layout, top view — open source STM32 board by 123Nert

About the Ai pcb

Ai pcb is an open source STM32 PCB design by 123Nert, published on GitHub. It is a 2-layer board measuring 78 × 57 mm, with 31 components from 21 distinct parts.

Its main chip is the STM32F103C8T6, from the STM32 family. Other key parts include the AMS1117-3.3. By type, the board carries 14 capacitors, 7 connectors, 3 resistors, 2 ICs, 2 crystals and 1 switch.

From the project

AI+Kicad

1. 用 ST-Link 连接 J1：SWDIO → SWDIO，SWCLK → SWCLK，GND → GND，3V3 → 3V3 2. BOOT0 已下拉，上电即从 Flash 启动，直接可在 STM32CubeProgrammer / Keil / OpenOCD 中下载调试 3. 串口下载（可选）：USB-TTL 接 PA9(TX) / PA10(RX)，BOOT0 排针接 3V3 后复位进入系统bootloader

- 板框：78 × 57 mm，双层板（F.Cu 信号 / B.Cu 整面 GND 铺铜） - 线宽：信号 0.15–0.25 mm，电源 0.5 mm - 过孔：0.6/0.3 mm（外径/钻孔） - 最小线宽约束：0.1 mm（嘉立创等板厂均可制造）

1. 原理图：通过 MCP 工具（kicad-sch-api）放置器件、连线、标注网络 2. 封装：全部器件指定 KiCad 标准封装（0603 阻容 / LQFP-48 / SOT-223 / 2.54mm 排针） 3. PCB：脚本创建板框与布局，按网表分配焊盘网络 4. 布线：导出 Specctra DSN → Freerouting 自动布线（94 网络全通）→ 导入 SES 5. 验证：ERC / DRC 全部通过（剩余仅丝印外观类提示）

Main components on the Ai pcb

STM32F103C8T6AMS1117-3.3

Ai pcb bill of materials (BOM)

31 components, 21 distinct parts.

QtyPartRefs
1
STM32F103C8T6
U1
1
AMS1117-3.3
U2
1
8MHz
Y1
1
32.768kHz
Y2
1
SWD
J1
1
PA0-PA7
J2
1
PA8-PA15
J3
1
PB0-PB7
J4
1
PB8-PB15
J5
1
PC13/NRST
J6
1
5V_IN
J7
1
RESET
SW1
1
PWR
LED1
1
600R@100MHz
FB1
2
20pF
C1, C2
6
100nF
C3, C4, C5, C6, C8, C10
3
10uF
C7, C13, C14
1
1uF
C9
2
12pF
C11, C12
2
10k
R1, R2
Show 1 more
QtyPartRefs
1
1k
R3

Ai pcb design files

The KiCad project lives in the 123Nert/ai_pcb repository on GitHub; these links point at the commit this page was built from.

Ai pcb: common questions

What microcontroller does the Ai pcb use?

The Ai pcb is built around the STM32F103C8T6, from the STM32 family.

How big is the Ai pcb?

The Ai pcb measures 78 × 57 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ai pcb?

31 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ai pcb design files?

From the 123Nert/ai_pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Ai pcb design in my own project?

The repository has no license, so all rights stay with 123Nert. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Ai pcb 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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