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Pmtoy hardware

pmtoy·pmtoy-hardware-pcb

Pmtoy hardware PCB layout, top view — open source STM32 board by pmtoy

About the Pmtoy hardware PCB

Pmtoy hardware is an open source STM32 PCB design by pmtoy, published on GitHub under the BSD-2-Clause license. It is a 2-layer board measuring 48.3 × 41.9 mm, with 40 components from 19 distinct parts.

Its main chip is the STM32F070F6Px, from the STM32 family. Other key parts include the SPX3819. By type, the board carries 16 resistors, 13 capacitors, 2 ICs, 2 transistors, 1 crystal and 1 fuse.

From the project

空气质量检测模块，主控 STM32F070F6 ，主传感器采用攀藤科技 PMS7003 ，带有 1.4寸 TFT显示 和 USB传输

+ 主控 STM32F070F6 + UART, PMS7003 传感器 + SPI, 1.4寸 TFT 显示 + 开关，3.3V 电源转换 + 按钮，芯片RESET + 按钮，编程 + LED， 编程 + USB， 供电 + 通讯 + SWD 接口

+ 传感器模块接口插孔太小，导致接口无法完整插入，焊锡连接的情况下，不影响使用。 + 接上传感器模块后，3.3V 供电无法开关切换，原因: 传感模块 5V 电源没有考虑开关 + USB DP 1.5k 上拉电阻没有必要，芯片内部已经实现了，故独立使用LED功能.

Pmtoy hardware, from the project README
From the project README

Main components on the Pmtoy hardware

SPX3819STM32F070F6Px

Pmtoy hardware bill of materials (BOM)

40 components, 19 distinct parts.

QtyPartRefs
1
SPX3819
U1
1
STM32F070F6Px
U2
2
Q_PNP_BEC
Q1, Q2
1
8M
Y1
1
6V
F1
1
G7
G7
1
SW_RST
SW_RST1
1
SW_USR
SW_RST2
1
TFT_1.44
TFT1
1
LED_PWR
3.3V
8
100n
C1, C2, C4, C5, C9, C11, C12, C13
2
10u
C3, C8
2
22p
C6, C7
1
4.7u
C10
5
1k
R1, R4, R8, R13, R16
4
10k
R2, R3, R5, R9
4
22r
R6, R7, R10, R11
1
1.5k
R12
2
0r
R14, R15

Pmtoy hardware design files

The KiCad project lives in the pmtoy/pmtoy-hardware-pcb repository on GitHub; these links point at the commit this page was built from.

Pmtoy hardware: common questions

What microcontroller does the Pmtoy hardware use?

The Pmtoy hardware is built around the STM32F070F6Px, from the STM32 family.

How big is the Pmtoy hardware PCB?

The Pmtoy hardware measures 48.3 × 41.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pmtoy hardware?

40 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pmtoy hardware design files?

From the pmtoy/pmtoy-hardware-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Pmtoy hardware design in my own project?

Yes, under the terms of its BSD-2-Clause license, which pmtoy chose for the repository.

Can I test firmware for the Pmtoy hardware 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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