STEM32
About the STEM32 PCB
STEM32 is an open source STM32 PCB design by Lee34667, published on GitHub. It is a 2-layer board measuring 44.7 × 35.8 mm, with 28 components from 16 distinct parts.
Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the AMS1117-3.3. By type, the board carries 13 capacitors, 5 resistors, 4 connectors, 2 ICs, 1 crystal and 1 switch.
From the project
Creating a L9110 module using PCB techniques.
Contains some the PCB projects I have done using KiCad. Most of this boards have been used in the industries and research work.
Main components on the STEM32
STEM32 bill of materials (BOM)
28 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | STM32F103C8Tx | LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | USB_B_Micro | USB_Micro-B_Wuerth_629105150521 | J1 |
| 3 | Conn_01x04_Pin | PinHeader_1x04_P2.54mm_Vertical | J2, J3, J4 |
| 1 | SW_SPDT | SW_SPDT_PCM12 | SW1 |
| 1 | RED | LED_0603_1608Metric | D1 |
| 1 | 120R | L_0603_1608Metric | FB1 |
| 2 | 22u | C_0805_2012Metric | C1, C2 |
| 1 | 10u | C_0603_1608Metric | C3 |
| 5 | 100n | C_0402_1005Metric | C4, C5, C6, C7, C11 |
| 1 | 10n | C_0402_1005Metric | C8 |
| 2 | 1u | C_0402_1005Metric | C9, C10 |
| 2 | 10p | C_0402_1005Metric | C12, C13 |
| 4 | 1k5 | R_0402_1005Metric | R1, R3, R4, R5 |
| 1 | 10k | R_0402_1005Metric | R2 |
STEM32 design files
The KiCad project lives in the Lee34667/PCB_Kicad_Projects repository on GitHub; these links point at the commit this page was built from.
- LayoutSTM32/STEM32.kicad_pcb
- SchematicSTM32/STEM32.kicad_sch
STEM32: common questions
What microcontroller does the STEM32 use?
The STEM32 is built around the STM32F103C8Tx, from the STM32 family.
How big is the STEM32 PCB?
The STEM32 measures 44.7 × 35.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the STEM32?
28 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the STEM32 design files?
From the Lee34667/PCB_Kicad_Projects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the STEM32 design in my own project?
The repository has no license, so all rights stay with Lee34667. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the STEM32 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 PCB_Kicad_Projects
ESP32Pixel click
82.4 × 59.6 mm130 parts4LNo license1
AWG
86 × 33.6 mm55 parts4LNo license1
USB Project
67.8 × 70.6 mm54 parts4LNo license1
ESP8266SMS
22.5 × 110.8 mm42 parts2LNo license1
RS485
74.7 × 40.1 mm26 parts2LNo license1
BBBC
76.8 × 32.8 mm24 parts2LNo license1
AVR/ArduinoIRS
79 × 78 mm23 parts2LNo license1
Solar Power Regulator
68.6 × 86.4 mm23 parts4LNo license1
Two Phase Bipolar Stepper Motor Controller
89.9 × 116.8 mm21 parts8LNo license1
L9110
24 × 38 mm15 parts4LNo license1
Passive Buzzer Module
12.5 × 34.5 mm4 parts4LNo license1
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