
Stm32-io extend
hardenedlinux/cheap-pcb
Cheap PCB: Better understanding the current status of hardware supply chain

projectss
Stm is an open-source printed circuit board by OfirBar97, from the OfirBar97/projects repository on GitHub. It is a 2-layer board of 41 × 36 mm with 33 parts on 50 nets, routed with 203 tracks and 25 vias.
It is built around the STM32F103C8T6 and AMS1117-3.3. Its parts include 13 capacitors, 5 resistors, 4 connectors, 2 ICs and 1 diode. It belongs with the STM32 boards of this library.
👋 Hi there! I'm Ofir Bar, an Electrical Engineer passionate about embedded systems, hardware design, and firmware development. This repository serves as a portfolio of my projects, experiments, and learning journey in the world of embedded engineering.
Here are the tools and technologies I frequently use:
Keeping it short and to the point
| Category | Tools/Technologies |
|---|---|
| Hardware Design | KiCad, Multisim, OrCAD |
| Microcontrollers | Arduino, STM32, Rasberry Pi, FPGA |
| Programming | Embedded C/C++, Python, MATLAB, Verilog, VHDL |
| Communication Protocols | I2C, SPI, UART |
| Simulation | LTspice, MATLAB/Simulink |
| Lab Tools | Logic Analyzer, Oscilloscope, Signal Generator, Spectrum analyzer, Multimeters |
| Advanced in | Deep Learning, Machine Learning, Signal & Image processing |
| Libraries | Pandas, NumPy, Matploitlib, TensorFlow, Keras, SickitLearn, OpenCV |
| Version Control | Git, GitHub |
Here are some of the projects I've worked on:
Here are some resources that have helped me in my journey:
Bachelor of Applied Science B.Sc - Electrical and Electronics Engineer SCE - College of Engineering, Be'er Sheva
SoC 101 Computer Architecture - Prof. Adi Teman Bar Ilan University, Ramat gan
Linux Cyber Security and Cisco networks managment HackerU Academy, Ramat Gan
Online Courses & Cerifications:
Books:
Communities:
I'm always open to collaborations, discussions, and feedback. Feel free to reach out to me:
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1k5 | Resistor_SMD:R_0402_1005Metric | R1, R3, R4, R5 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | 100n | Capacitor_SMD:C_0402_1005Metric | C4, C7, C11 |
| 3 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2, J3, J4 |
| 2 | 100n | Capacitor_SMD:C_0201_0603Metric | C5, C6 |
| 2 | 10u | Capacitor_SMD:C_0402_1005Metric | C3, C8 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C9, C10 |
| 2 | 22u | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 10p | Capacitor_SMD:C_0402_1005Metric | C13 |
| 1 | 10p | Capacitor_SMD:C_0805_2012Metric | C12 |
| 1 | 120R | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 16Mhz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | LOGO | LOGO | G*** |
| 1 | RED | LED_SMD:LED_0201_0603Metric | D1 |
| 1 | STM32F103C8T6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_SPDT | Button_Switch_THT:SW_E-Switch_EG1224_SPDT_Angled | SW1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Wuerth_629105150521 | J1 |
It measures 41 × 36 mm and has 2 copper layers, 1.6 mm thick.
33 parts, built around the STM32F103C8T6 and AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the OfirBar97/projects repository on GitHub, at the commit this page was made from: the board is STM32 PCB Design Project/stm.kicad_pcb and its schematic STM32 PCB Design Project/stm.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask OfirBar97 before reusing the design.

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