A low-profile version of full-featured software radio based on Raspberry Pi Pico (fully open source + detailed explanation)

With just a Raspberry Pi Pico, an analog switch and an op amp, you can build a powerful SDR receiver covering the LW, MW and SW bands. Capable of receiving signals from halfway around the world.

Schematic PCB

Open source practical current and magnetic field probe little-bee

Little Bee is an affordable, high-performance current probe and magnetic field probe that allows you to debug and analyze electronic devices more efficiently.

Schematic PCB

Interactive Memory Technology Learning Kit Core64

Core64 combines real core memory and LEDs in a unique interactive way. Core Memory is a magnetic memory technology from the 1960s and 1970s. The tip of the stylus has a magnet that interacts with the LED through Core Memory. In practice, users can think of it as a magnetic touch screen

Schematic PCB

Picoclick-C3: Small WiFi and BLE IoT button for multiple applications

Picoclick-C3 The name relates to its new processor, the ESP32-C3, a single-core RISC-V 160MHz CPU. Picoclick C3T is a small WiFi and BLE IoT button suitable for a variety of applications. Originally designed for smart homes, Picoclick can also be used as an actuator for IFTTT automation or as an MQTT device. It is based on the single-core ESP32-C3 RISC-V processor, so it has a lot of useful features. The C3T measures just 10.5mm x 18mm.

Schematic PCB

Openpilot: an open source advanced driver assistance system with 49.2k stars on Github

With features like adaptive cruise control, driver monitoring, automatic lane centering, etc., it is available for Toyota, Hyundai, Honda and many other brands, about 275+ models. openpilot complies with ISO26262 guidelines.

Schematic PCB

Esai source code pure electric vehicle motor drive and vehicle control system based on DSP and bidirectional Z-source inverter

This project applies the bidirectional Z-source inverter to the motor drive system of pure electric vehicles. Using TMS320F2808 DSP as the control core, the SVPWM control technology based on the Z-source inverter is implemented.

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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

YOLO3D: Project source code for 3D object detection based on yolo in autonomous driving applications

Schematic PCB

An engineer in the autonomous driving industry has opened up a fully functional laser SLAM

A versatile LiDAR SLAM package. Supports various types of LiDAR sensors (mechanical, solid-state, etc.), 6-axis and 9-axis IMU, loose coupling and tight coupling, mapping and positioning, loop detection, etc.

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

iphone6-5.5+ schematic.zip

Apple's full series of drawings: iphone6-5.5+ schematics.

Schematic PCB

jtag-programmer: JTAG programmer based on FT232H

​Gregory Davill is a technical expert from Australia who is very famous and active in the field of open source hardware. In December 2020, he insisted on designing a circuit board every day, using KiCad to complete the circuit design and PCB layout and routing. This is the adventure-calendar-of-circuits-2020 project. This design is a JTAG programmer based on FT232H.

Schematic PCB

RX5808 receiver ESP32 version

The hardware design adopts upper and lower layer design. The upper layer is the control circuit and the lower layer is the dual receiving circuit. The interface design is based on LVGL.

Schematic PCB

iPhone 5s Chinese schematic + component distribution diagram

Apple's full series of drawings: iPhone 5s Chinese schematic + component distribution diagram

Schematic PCB

CaribouLite RPi HAT: Fully open source dual-channel SDR Raspberry Pi HAT with tuning range up to 6 GHz (schematic, PCB, source code, etc.)

CaribouLite is an affordable open source dual-channel software-defined radio (SDR) platform and an SDR-focused FPGA development framework implemented as a Raspberry Pi (RPi) HAT. CaribouLite turns your Raspberry Pi single-board computer (SBC) into a standalone dual-channel radio Tx/Rx with a tunable spectrum up to 6 GHz. CaribouLite gives you complete control over its hardware, including FPGA, firmware, and all supporting software. With the deeply integrated IceStorm toolchain, writing your own FPGA applications couldn't be easier. You can reuse many Verilog modules, such as the SPI and SMI modules, to support custom applications for CaribouLite hardware.

Schematic PCB

Reference design of Epson multimeter microcontroller S1C17M02/M03

Can measure DC/AC voltage, DC/AC current, resistance, inductance, capacitance, diode, frequency. Built-in 16bit ADC, digital filter, RMS effective value circuit and peak hold circuit. Multimeter control unit integrated with microcontroller, officially launched reference design kit, powered by button battery, including schematic diagram.

Schematic PCB

ArduPilot: Full-featured, reliable, open source autopilot software that supports a wide range of vehicles

Schematic PCB

Frank robot loading and unloading program

Frank robot automatically palletizes packaging bags

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Multifunctional open source custom macro keyboard based on esp32s3

Schematic PCB

Huawei RF Basic Knowledge Training

Schematic PCB