Search Results for "dc"
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Showing 20 open source projects for "dc"
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Quite Universal Circuit Simulator
A circuit simulator with graphical user interface (GUI)
Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported. -
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StarFishDAQ
A general purpose data acquisition system and development platform.
The StarFishDAQ (or SFDQ for short) is a platform for developing MCU based hardware without having to start from scratch. It consists of hardware, firmware and software components. The SFDQ allows those projects that would otherwise use an off-the-shelf DAQ, PLC or MCU SBC to start with a stack of hardware, firmware and software. This allows more control, customization, and future applicability without sinking a ton of effort. The SFDQ can be used simply and quickly, as-is in... -
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TESTIMAGES
Testing images for scientific purposes
The TESTIMAGES archive is a huge and free collection of sample images designed for analysis and quality assessment of different kinds of displays and image processing techniques. The archive includes more than 2 million images originally acquired and divided in three different categories: SAMPLING and SAMPLING_PATTERNS (aimed at testing resampling algorithms), COLOR (aimed at testing color rendering on different displays) and PATTERNS (aimed at testing the rendering of standard geometrical... -
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E-Plater
The firmware for the PIC18F2XK22 to do pulsed electroplating
"E-plater" is a device that was specially developed by Engenharia Caseira (engenhariacaseira.com.br) to make pulsed and reversed pulsed electroplating (PED). Research shows that molecules on the surface of electrically deposited material using direct current are sometimes disorganized which can result in uneven surface and color. It is possible to control the composition and thickness of the deposited layer in an atomic order by configuring the amplitude and width of a pulse. The... -
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Circuit simulator SPECI-SPICE
Circuit simulators like SPICE for low memory computers
SPECI-SPICE is a subset of SPICE intended to run on low powered computers like Amstrad CPC, ZX Spectrum, CP/M machines, old PC machines, some programmable calculators,etc. by keeping most important functionality of SPICE 2. -
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Hydraulic(fluid power) programs
Python programs for various hydraulic(fluid power) calculations
General hydraulic calculations. Cylinder selection and calculations. Multiple cylinder sequencing with graph output. Tubing selection and calculations. Viscosity graphing for various oils. DC Valve flow vs. pressure drop calculations. -
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Digital PID Controller MSP432
Digital PID Controller Using MSP432
...Feel free to contact me about getting design files, code, a little help, etc. It demonstrates proportional, integral, and derivative controllers and their features as well as anti-windup and control loop update rate. It uses a DC motor controlled by an h-bridge and an optical quadrature encoder for feedback. It uses timers, counters, and interrupts to generate PWM to control the speed of the motor, encoder pulse counting, and control loop updates. -
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Electronic Weather Station System
Two companion weather stations with Wi-Fi upload/download
...There are two circuit boards which are the main controller board and the Timer/Regulator board. The Main controller board performs all the processing of the system. The timer/regulator board converts the 12vdc input voltage to the 3.3v and 5v DC voltages used by the main controller board. The timer/regulator board communicates with the main board via a serial communication cable. The timer/regulator board can be commanded by the main board to power the system down for a precise interval in order to conserve battery power. A Web-based control panel SW is included. -
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Maxima poles-zeros for analog circuits
Maxima script for symbolic analysis of analog integrated circuits
...Script allows to find approximated poles and zeros of transfer functions, developed and optimized for transfer functions of amplifiers, but can be used also for any general analog circuit. The script calculates DC transfer function, zeros, poles and creates Bode plots. DC transfer function, zeros, poles result simplified so main contributing elements can be easily identified. Poles and zeros approximation principle mainly taken from the paper "INDIRECT FEEDBACK COMPENSATION TECHNIQUES FOR MULTI-STAGE OPERATIONAL AMPLIFIERS" by Vishal Saxena Usage examples also can be taken from "Maxima Opamp Analisys" project Any comments bug reports and improvement suggestions are welcomed! ... -
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A web-based maintenance management system for water and wastewater networks. Allows to store customer complaints and issue workorder sheets. Rather than using street names, maps and landmarks are used for navigation.
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Soundcard Digital Voltmeter
Measures analog DC signals with the PC soundcard.
With this software and a simple external hardware, the sound card input of a PC can be used to measure stationary or slowly changing analog signals (e.g. voltages). The hardware converts the input signal into a voltage proportional frequency. The software measures the frequency via the sound card and calculates the corresponding input signal level which is displayed numerically and in a “scope-like” view. -
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Anie
PID_control, real_time, matlab_simulink, xilinx_ise, fpga_spartan3e
Embedded system design (VHDL description) based on Xilinx's Spartan3E Development Kit to perform real-time PID control and monitoring of time critical plants such as brushless DC motors, maglevs... vimeo.com/channels/anie prezi.com/gpbycavq499c/anie/ -
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fw2csv
Convert data file from fixed width format table to CSV
...I am using this utility to import astronomical catalogs provided as flat tables at CDS ftp-server into postgresql; Build: $ make all [cc={icc|gcc}] Install: $ make install [prefix=/path/to/your/bin/directory] Example of usage: $ gzip -dc table.dat.gz | fw2csv --stops=4,10,11,20,30,36 -d '|' -header 1 | psql wsdb -c "copy mytable from stdin with csv delimiter '|'" For the list of available options call $ fw2csv --help -
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Syspect is a tool to specify a system using UML2 diagramms and translate them into a CSP-OZ-DC specification for formal verification.
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A web-based system for a comprehensive survey of water utility customers. Cross-platform application written in PHP. Uses a GIS component based on mapserver to visualize the delivery points.
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Software application, firmware and U.I. for 4-motors 3-axis milling machine, open hardware, software and mechanics. See also project in details for schematics and images on http://www.contesti.eu/opensource/xyz-dc-motor-controller
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Keep It Simple Bus is a PC+MCU based Robotics Framework that utilizes serial port to interface to multiple DC/Servo/Stepper motors through PIC12F683 ising binary protocol. Main goal is to do it as cheap as possible with minimal number of components, fast
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dci is an RPN scientific calculator for console users. It is an improved /usr/bin/dc, though not 100% compatible. dci is designed for quick handling of arithmetic, trigonometry, logarithms, and complex values.
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HyperSpider (Java app) collects the link structure of a website. Data import/export from/to database and CSV-files. Export to Graphviz DOT, Resource Description Framework (RDF/DC), XML Topic Maps (XTM), Prolog, HTML. Visualization as hierarchy and map.
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