OLED-Boy, a mini OLED game console based on ATmega328P

This is an open source work by netizen aziddy, based on the classic Adafruit Feather 328P development board (the MCU master is Microchip's ATmega328P) and a mini electronic game console with a 128x64 OLED screen

ESP8266 multi-function ink screen

Arduino development, weather, clock, reading, network distribution and other functions

Schematic PCB

Smart RV control system

The home facilities on the RV include: lighting, sofas, seats, air conditioners, TVs, stereos and other electrical appliances. It is inconvenient to set independent switches for each appliance. The smart RV control system solves such problems. The deep learning speech recognition technology of artificial intelligence technology achieved a breakthrough in 2013, and the voice interaction method will occupy an important position for a long time after the technological breakthrough. Large-size touch screens are also the development trend of vehicle-mounted human-computer interaction equipment in recent years. This system uses speech recognition and display human-machine interface (HMI) as human-computer interaction equipment, and users control electrical appliances through voice and touch screen.

Schematic PCB

Protues simulation example (8051)-parallel port to serial port.rar

Protues simulation example (8051)-parallel port to serial port

Schematic PCB

Frequency Probe - an ultra-miniature frequency probe

An ultra-mini frequency probe designed by foreign expert David Johnson. This frequency probe can help you debug the circuit by displaying frequency and voltage. It can measure periodic waveforms from 1Hz to 5MHz with an accuracy of 0.3%. Of course, it can also be used as a voltmeter. Use it to tell you the current voltage value.

Schematic PCB

PTN3816EVM: DisplayPort Linear Redriver Evaluation Board for the PNT3816

6-digit handheld open source multimeter

Software and hardware are all open source

Schematic PCB

Design and implementation source code of solar power generation simulation system based on TMS320F28335

Design and implementation of solar power generation simulation system based on TMS320F28335

Schematic PCB

Software and hardware open source portable monitor CatSniffer (schematic diagram, PCB, source code, etc.)

This board is a Swiss Army Knife for IoT security researchers, developers, and enthusiasts. The board can be used with different types of software, including third-party sniffers such as SmartRF Packet Sniffer, Sniffle, zigbee2mqtt, Z-Stack-firmware, Ubiqua Protocol Analyzer, our custom firmware, or you can even Specific software requires writing your own software.

Schematic PCB

Open source EtherCAT servo driver board design

Schematic PCB

An open source project to recreate classic Casio watches

The Sensor Watch is unlike most smartwatches.

Schematic PCB

PIKOCUBE - WiFi-controlled programmable dice composed of 54 LEDs

This dice mainly consists of an ESP8285-01F, six PCBs and 54 LEDs. Its structural design is very clever, and the exquisiteness of the structure is also reflected in the production process.

Schematic PCB

Protues simulation example (8051)-stepper motor control

Protues simulation example (8051)-stepper motor control.rar

Schematic PCB

STM32 OpenSource Multimeter - an open source multimeter suitable for DIY entry

An open source multimeter design based on STM32F1/F3, with dual-range V/I, RMS measurement, continuity, component testing and other functions. The author has made all design files open source, which is very suitable for DIY entry.

Schematic PCB

Using STM32F072 to regulate the pocket experimental power supply of TX4211 and SY6345

Cruelfox, a forum expert, has updated his article to share with you an experimental idea of ​​a CNC experimental power supply. The power supply uses two domestic chips, with a 3,000-word detailed explanation. He briefly talked about the first experimental power supply he made, whose shell was an aluminum medicine box and whose knob was a toothpaste cap. He mainly talked about the ideas and principles of the current mini PCB pocket version.

Schematic PCB

MAXREFDES173#: IO-Link local temperature sensor

The MAXREFDES173# IO-Link^® temperature sensor uses the MAX14827A IO-Link device transceiver and supports the IQ2 Development™ IO-Link stack.

Protues simulation example (8051) - playing music

Protues simulation example (8051) - playing music

Schematic PCB

2018 Electronic Competition Question E-Energy Recovery Device (Xidian University)

Schematic PCB

Fluke 17b multimeter schematic diagram

Fluke 17b multimeter schematic diagram

Schematic PCB

Rodeostat: Potentiometer for electrochemistry, fully open source

It's all open source, and their documentation is very detailed, which is a rare learning material.

Schematic PCB