Search Results for "system design"
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Showing 113 open source projects for "system design"
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DIY Split-Flap Display
DIY split-flap display
This is a work in progress split-flap display. Each module can flip between 40 unique characters: letters, numbers, and a few symbols. Multiple modules fit perfectly alongside each other to build bigger displays. The primary design goal was to make something that's possible to fabricate at home in small or single quantities and can be customized and built by an intermediate hobbyist at a reasonable price. This meant using widely available materials and avoiding any tooling with a high... -
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QMK
Keyboard firmware for Atmel AVR and ARM controllers
QMK (Quantum Mechanical Keyboard) is an open source community centered around developing computer input devices. The community encompasses all sorts of input devices, such as keyboards, mice, and MIDI devices. This is a keyboard firmware based on the tmk_keyboard firmware with some useful features for Atmel AVR and ARM controllers, and more specifically, the OLKB product line, the ErgoDox EZ keyboard, and the Clueboard product line. Keyboards powered by QMK are Planck, Preonic, ErgoDox EZ,... -
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Arduino FOC
Arduino FOC for BLDC and Stepper motors
We live in very exciting times 😃! BLDC motors are entering the hobby community more and more and many great projects have already emerged leveraging their far superior dynamics and power capabilities. BLDC motors have numerous advantages over regular DC motors but they have one big disadvantage, the complexity of control. Even though it has become relatively easy to design and manufacture PCBs and create our own hardware solutions for driving BLDC motors the proper low-cost solutions are yet... -
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MongoDB NodeJS Driver
The MongoDB Node.js driver
The MongoDB Node.js driver allows Node.js applications to connect to MongoDB and work with data. The driver features an asynchronous API which allows you to interact with MongoDB using Promises or via traditional callbacks. Whether you are new to MongoDB or you just want to brush up on the core concepts, you can check out the Fundamentals section which features material on using the Node.js driver. The connection URI is the set of instructions that the driver uses to connect to a MongoDB... -
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Open Source Cartridge Reader
A shield for the Arduino Mega that can back up video game cartridges
This project represents a community-driven effort to provide an easy-to-build and easy-to-modify cartridge dumper. Completely stand-alone, does not need a PC to operate (unless for updating firmware). Easy to modify open-source code, write your own extensions and share them with others. Portable thanks to a battery. Modular design using mostly off-the-shelf components. Reads NES, Famicom and Family Basic cartridges including save. Supports Mapper 30/NESmaker and flashes INL NM30 boards.... -
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AWS EC2 FPGA
AWS EC2 FPGA hardware and software development Kit
AWS EC2 FPGA Development Kit is a set of development and runtime tools to develop, simulate, debug, compile and run hardware-accelerated applications on Amazon EC2 F1 instances. It is distributed between this GitHub repository and FPGA Developer AMI - Centos/AL2 provided by AWS with no cost of development tools. After creating an FPGA design (also called CL - Custom logic), developers can create an Amazon FPGA Image (AFI) and easily deploy it to an F1 instance. AFIs are reusable, shareable... -
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A very high quality package of printer drivers for CUPS on Linux and other POSIX-compliant operating systems. This project also maintains an enhanced Print plug-in for GIMP 2.x from the same code base.
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VTracer is a Verilog Testbench developer aid. Contains well documented Verilog-Perl co-simulation environment (TCP sockets based), structural Verilog parser, demo Testbenches.
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myFP2ESP32-Dev WiFi ASCOM Focuser
ASCOM-INDI ESP32-Dev Wifi focuser
An ESP32-Dev WiFi focuser. DIY or PCB designs. (c) Robert Brown 2014-2025, Holger M, 2019-2021. All rights reserved. Code or portions of code may not be copied or used without appropriate credit given to authors. Spreadsheet to calculate what stepper motor to use. https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/Nema-Stepper-Motors.xlsx/download Spreadsheets to calculate... -
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LittleFancyTool
supports RS232/485/Modbus, sockets, text enc/dec (multi-alg) and so on
This small tool, built with WinForm and Ant Design UI, supports RS232, RS485, and Modbus serial communication debugging, socket communication capabilities, multi-algorithm text encryption/decryption, image/text Base64 conversion, and asynchronous multi-threaded file encryption/decryption. -
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Arduino mySQM Sky Quality Meter
mySQM powered by Arduino Nano
A sky quality meter based on TLS237 and Arduino Nano. (c) Copyright Robert Brown 2014-2024. All Rights Reserved. Code or portions of code may not be copied or used without appropriate credit given to author. For a WiFi ESP32 much improved version please see https://sourceforge.net/projects/mysqmproesp32/ AUTHOR NOTE: HIGHLY RECOMMEND YOU USE AN ARDUINO MEGA FOR THIS PROJECT IF ALL OPTIONS ARE CHOSEN YOU CAN RUN OUT OF CODE SPACE ON A NANO -
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Arduino Nano Dew Controller Pro (DIY)
Dew Controller Feature Rich
A 3-channel fully automated Dew Controller (DIY project) based on Arduino Nano for telescopes. For $48 or less. (c) Copyright Robert Brown 2014-2025. All Rights Reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author. A very popular project with over 48,000 downloads. There is a new ESP32 WiFi version at https://sourceforge.net/projects/esp32-dew-controller/ The older... -
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DarkLight Cover/Calibrator
DIY project to build a cover, flat panel or combo flip-flat panel
The DarkLight Cover/Calibrator (DLC) is a DIY project to build a motorized telescope cover, flat panel, or a combination flip-flat system. Its modular design supports various setups: a 12V light panel without a servo for a wall-mounted calibration panel, a servo-only cover for sky flats, or both integrated into a flip-flat mechanism. The DLC also includes optional dew heating to reduce extra equipment and cabling. With available drivers, it works with ASCOM or INDI. ... -
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Arduino ASCOM Focuser Pro DIY
Arduino Focuser, fully ASCOM complaint
myFocuserPro is an ASCOM and Moonlite compatible stepper motor telescope focus controller (DIY) based on Arduino Nano/Uno. A popular DIY ASCOM focuser with more than 121,000+ downloads. (c) Copyright Robert Brown 2014-2024. All Rights reserved. Permission is granted for personal and Academic use only. Spreadsheet to calculate what stepper motor to use. https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/Nema-Stepper-Motors.xlsx/download -
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SmartKnob
Haptic input knob with software-defined endstops and virtual detents
SmartKnob is an open‑source hardware/software hybrid rotary input device featuring software-configurable end-stops and virtual detents, facilitated by a brushless gimbal motor and magnetic encoder—offering programmable haptic feedback and a novel, tactile user interface. 240x240 round LCD ("GC9A01"), protected by 39.5mm watch glass on rotor. BLDC gimbal motor, with a hollow shaft for mechanically & electrically connecting the LCD. PCB flexure and SMD resistors used as strain gauges for press... -
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UrJTAG aims to create an enhanced, modern tool for communicating over JTAG with flash chips, CPUs, and many more. It is a descendant of the popular openwince JTAG tools with a lot of additional features and enhancements.
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ShiftRC
Simple cheap DIY RC receiver/handler.
ShiftRC is a opensource design for a very cheap, small and simplistic rc driver/rc statemashine. mimics Nikola Tesla's boat it uses a shift chip with multiple outputs and one input for the radio or IR signal. This project is something I wanted to do for a while to make cheap and light weight custom rc chips, and I decided to make it a real project when I found a wooden single use spoon which I wanted to turn into a boat. this project will host multiple version, some very simple... -
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HoloCubic
Multi-function transparent display desktop station
HoloCubic is a multi-function transparent display “desktop station” that uses a dispersive prism to create a pseudo-holographic visual effect, combined with WiFi and Bluetooth connectivity to support interactive network-capable applications. Built around an ESP32 PICO-D4 microcontroller, a 1.3″ 240×240 ST7789 display and MPU6050 inertial sensor, the device allows you to build a “floating hologram” style display module with additional networked visual features like weather display or follower... -
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Specialist-S
8-bit home-made computer on Z80 CPU
This is a renaissance of the "Specialist" micro-computer published in the popular "Modelist-Constructor" magazine issue #2, 1987 by A. Volkov. The original design was used the Soviet i8080A analog - KR580IK80A (KR580VM80A), but this one is based on the Z80A CPU. Postfix "S" in the project name designates a "simple" design. -
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newlearnerspermit
C for programmable guitar amp
This project experiments with C language to discover and design a programmable guitar amplifier effects micro controller computer section of a tube and solid state designed guitar amp. This a collaboration electronics project with my son. The goal of this project is to use Arduino hardware with C language programming to manipulate the guitar signal by various effects of phaser, flanger, reverb, digital delay and echo, and tremelo. Also, the signals of two microphones, two guitars, and... -
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L-ink_Card
Smart NFC & ink-Display Card
L-ink Card is a smart NFC card with an electronic-ink display built into the card form-factor, aimed at solving everyday pain points of IC cards and giving them a “cooler” interface. The project uses an STM32L0-series microcontroller paired with an ST25DV NFC chip, an e-ink screen, and battery management so the card can display dynamic info while also serving as an NFC tag/card. Its functionality may include showing balance, last transaction, QR codes, or other custom info on the e-ink... -
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CUPS back-end for the canon printers using the proprietary USB over IP BJNP protocol. This back-end allows Cups to print over the network to a Canon printer. The design is based on reverse engineering of the protocol. Version 2.0 adds ink-level reporting and improved out-of-paper detection. Version 2.0.1 is now released under GPLv2 or later to be compatible with the changed cups license. No other changes. Version 2.0.2 fixes a compile error with GCC9 Version 2.0.3 Fix GCC10...
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Rpi LCD 2004
C# library for access a LCD 2004 with HD44780 over I2C
C# library for the HD44780 controller and a I2C-Adapter PCF8574T. Prerequisite: -Raspberry Pi -Installed Mono or NetCore -Installed Wiring Pi Library -connected LCD display over I2C (A00) Features: -Simple design and display own chars (see progress demo) -German umlaute -Access easy special chars like pi, degree,omega .... -Display strings center, left and right align -Control backlight,Cursor,Display -simple interface -
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SmGen
Verilog Finite State Machine (FSM) Code Generator
SmGen is a finite state machine (FSM) generator for Verilog. On the other hand, it is not an FSM entry tool. The input is behavioral Verilog with clock boundaries specifically set by the designer. SmGen unrolls this behavioral code and generates an FSM from it in synthesizable Verilog. Clock boundaries are explicitly provided by the designer so there is good control on the expected timing
