ArduPilot: Open source flight control APM and PIXHAWK (schematic and source code)

APM (ArduPilotMega) is a flight control product launched by the DIY Drones community in 2007. It is the most mature open source hardware project today.

Schematic PCB

Open source micro-racing car based on ESP32H2, inspired by Mario Kart

This is a fun electronic toy car that features power-ups! The author uses color sensors and magnetic switches to trigger fun tricks like acceleration, deceleration, and rotation. It draws a lot of inspiration from Mario Kart.

After a failed Kickstarter campaign, the author has now open-sourced the software, hardware, and mechanics.

Schematic PCB

MPC5606EEVB: NXP MPC5606E evaluation board

^The NXP® MPC5606E MCU is a gateway system built on Power Architecture® ^{technology designed to move data from disparate sources over Ethernet.}

Open source 12-lead portable electrocardiograph

This open source has a complete host computer, slave computer and schematic diagram, as well as a detailed design paper.

Schematic PCB

Zhihuijun produces portable pocket monitor & power bank

Zhihui Jun designed and produced a portable pocket monitor (& power bank) to solve personal pain points. There is no room for improvement in terms of appearance~

Schematic PCB

For smart devices, SABER board based on i.MX 6SoloX application processor

The SABER board for smart devices is based on the i.MX 6SoloX processor and supports 4-core processing, low-power multimedia and graphics applications.

Schematic PCB

MTRCKTSBN5604P: 3-Phase Sensorless BLDC Development Kit with NXP MPC5604P MCU

The MTRCKTSBN5604P motor control development kit is ideal for sensorless applications requiring one BLDC motor, such as HVAC or electric pumps.

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

DIY personal laptop

The author specially bought a laptop motherboard, and then DIYed the peripherals and casing. The overall effect is quite beautiful.

Schematic PCB

S32G reference design for automotive network processing 2

Schematic PCB

MCIMX8QXP-CPU: i.MX 8QuadXPlus Multi-Sensor Enablement Kit (MEK)

NXP MEK provides a platform for evaluation and development of the i.MX 8X series of application processors based on Arm Cortex A35 + Cortex-M4F.

Schematic PCB

LS1043A Residential Gateway Reference Design

OpenWRT Residential Gateway Home Router Platform.

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

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

Homemade 10KV electronic load

Commercial electronic loads are more expensive, especially high-power loads such as computer power supplies that must handle transient current spikes well above their nominal ratings (1800W spike for a 600W GPU) and should be tested under worst-case conditions to Ensure stability.

Schematic PCB

NXP Automotive Networks GoldBox

Schematic PCB

ThunderScope: Open source software-defined oscilloscope (schematics, source code, etc.)

ThunderScope is the first oscilloscope designed specifically for Thunderbolt, allowing live sample data to be streamed to your computer at over 1 GB/s. This design eliminates all limitations of traditional oscilloscopes by leveraging the powerful processing capabilities of modern devices. Measurements are made fast and easy, with cramped UIs replaced by multi-window layouts and support for modern accessibility features. Sample memory was increased from megabytes to gigabytes, and the fixed list of protocols and trigger types was replaced by an ever-expanding repo. ThunderScope is also open source, so you have complete control over your data from the moment you sample it. You can easily add your own custom features and benefit from new features built by the community.

Schematic PCB

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