Open source USB2.0 high-speed analyzer

The analyzer host computer directly uses Wireshark. The hardware is implemented using Cypress CY7C68013A MCU + Lattice LCMXO2 FPGA + Microchip USB3343 USB PHY

Schematic PCB

Design based on STM32F103 air purifier

An air purifier based on stm32f103rct6 chip can measure temperature and humidity and control fans.

Schematic PCB

Chhavi: ESP32 based fingerprint sensor with optional NFC (source code, etc.)

Chhavi is a tiny, wireless, touch capacitive fingerprint sensor with high-end security features, support for ultra-low power operation and optional NFC connectivity. Its open source firmware is fully compatible with the Arduino IDE. Chhavi is powered by ESP32 and features an FPC BM-Lite fingerprint sensor by Fingerprints, giving you and your projects access to the excellent biometric hardware found in many smartphones. Unlike optical fingerprint sensors that are large and power-hungry, this capacitive biometric sensor is small, accurate, and energy-efficient. During our design process, we determined that NFC communication would be a powerful feature for many of the same applications that might require a high-quality fingerprint sensor, but we could not find a major ESP32-driven NFC controller. So we built one into Chhavi as an optional feature. We've also added an optional battery to simplify installation and facilitate mobile deployment. The result is a tiny device with a cutting-edge fingerprint reader, Wi-Fi and Bluetooth capabilities, as well as support for NFC and battery power when needed.

Schematic PCB

Open source EEG electroencephalogram design based on STM32H7

Software and hardware are all open source

Schematic PCB

Protues simulation example (8051)-stepper motor.rar

Protues simulation example (8051)-stepper motor

Schematic PCB

Fully automatic washing machine program and circuit diagram

Fully automatic washing machine program and circuit diagram

Schematic PCB

GitHub developers make their own Mars rover, and the tutorial is fully open source

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Schematic PCB

ESPFLIX: Free streaming service based on ESP32

Well-known maker Rossum shows us how to build an open source set-top box and connect it to an ESP32-based video streaming service.

Schematic PCB

Avem: A lightweight UAV flight control based on STM32F103

A lightweight UAV flight control based on STM32F103.

Schematic PCB

Zhihuijun open source super mini smart NFC card (schematic diagram, PCB, source code, etc.)

With electronic ink screen, can simulate various IC cards

Schematic PCB

Joint debugging and listening device solution based on STM32 (schematic diagram, PCB source file, debugging tools, video)

Joint debugging and listening device solution based on STM32 (schematic diagram, PCB source file, debugging tools, video).

Schematic PCB

Bluetooth selfie stick solution based on MM32W wireless MCU

​Introducing an application solution for Bluetooth products that is very common in everyone's life, a Bluetooth selfie stick application developed based on the MM32W series.

2019 Electronic Competition Question A-Dynamic Wireless Charging System for Electric Cars (Shandong University)

Schematic PCB

Quadcopter control system based on STM32 microcontroller (schematic PCB, program source code)

The processor of the small four-axis machine uses the STM32F103 chip, and the sensor uses the MPU6050

Schematic PCB

HealthyPi 5: open source biosignal acquisition board

Schematic PCB

Nordic open source second generation power consumption measurement kit Power Profiler Kit II

Hardware design is difficult, but Nordic is all open source, and PCB, BOM, Gerber, schematics, etc. are all provided. The schematic is also annotated.

Schematic PCB

Remote video monitoring source code and schematic diagram based on STM32F4

Schematic PCB

syzygy-txr-breakout: SYZYGY TXR4 to SMA connector

All 12 I/O pins of this design are broken out to 0.1" headers. All 4 TX/RX channels and the reference clock are broken out to SMA connections.

Schematic PCB

License plate recognition control board schematic + 3D PCB

Share license plate recognition control board schematic + 3D PCB

Schematic PCB

2018 Electronic Competition Question A-Current Signal Detection Device (Dalian University of Technology)

Schematic PCB