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A RF Differential Probe based on the 2SC3356 transistor
An active RF probe based on the 2SC3356 transistor available from many sources.
Apple II Peripheral Card that Interfaces to a ATMEGA328P for SD card storage
An Apple ][ bus card that allows an Arduino and/or a Shield to be connected to the Apple ][ bus.
Arduino STM32. Hardware files to support STM32 boards, on Arduino IDE 1.8.x including LeafLabs Maple and other generic STM32F103 boards
Arduino STM32 TVoutライブラリ
A device for twiddling the mouse optically
A demonstration of a capacitive touchpad using a RPi Pico
A PCB for a CGA To SCART adapter
A pack of PCBs for a dual resonant solid state tesla coil setup. Pretty much everything you need.
The reference implementation of the ERC-721 non-fungible token standard.
fldigi repository with SCAMP
An Arduino-controlled charger for different kinds of batteries, or it can be a standalone power supply
A bunch of useful FreeCAD parametric models I've designed
A guitar effects processor based on the Raspberry Pi Pico
A customizable HID USB device with buttons, encoders, sliders, potentiometers, etc.
A discrete high voltage op amp that uses 5551/5401
IP65 - a TCP/IP stack for 6502 based computers (added Dan ][ card support)
A ISA card for PC/XT/AT that has SD storage and SPI/I2C interfaces using a ATMEGA328P
This is the official website source for KiCad at
A panel for illuminating a decorating display from below with options for size and layout
Linear constant constant/current constant voltage power supply PCB
A super simple, super cheap all-mode QRP transceiver
Microcontroller based theremin using the STM32F103C8T6 bluepill board
A Modular Antenna Tuner for a Phased Array Antenna System
A PCB with the Arduino Nano pinout but uses the ATMEGA328P
A Raspberry Pi/Arduino based robot with ultrasonic, infrared, other sensors
A Nixie clock that uses IN-14 tubes and very generic components that can be easily sourced.
A single chip VT100 terminal based on the STM32F103C8T6/CS32F103C8T6
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.