Optical obstacle switch with LM567
This is a simple toy that has many applications. Any object that breaks a light beam will trigger a relay to on condition for a period of time.
Universal Signal Conditioning Circuit
Here is a practical application of the dual differential amp. This circuit is for DC or slow moving DC like Strain Gauge and transducer signals.
16 Channel Analog Multiplexer
This circuit is built around the chip CD4067, now called 74HC4067, it works like a single pole 16 throw rotary switch that can be controlled digitally.
Stephen Ostermiller Code
Stephen Ostermiller has many interesting and innovative code that will help you learn the right way to write code in JavaScript or Perl . Some of the highlights are Scientific Calculator, Triangle Calculator, Contact Form, Tic-Tac-Toe Graphing Calculator Programs, Java Utilities, RSS Reader and Random Password Creator.
Low Cost AM FM Stereo Receiver
FM stereo demodulation is accomplished by the use of the LM1800 phase locked loop, thereby eliminating the need for external coils. The AM function of the receiver is done completely with the LM3820 AM radio system. While designed for 3 section tuned superheterodyne application.The LM382 dual preamplifier was selected for its minimum parts count and low noise capability.
DMM with ICL7103A and ICL8052A
The purpose of this application note is to describe the operation and potential pitfalls of a 10V resolution (VREF = 100mV) 4 1/2 digit autoranging scheme using the ICL7103A/ICL8052A pair. Two auto-ranging circuits are included within the text. Each is discussed in terms of its advantages and disadvantages.
Battery Operated Auto Ranging DVM
This application note describes a technique for auto-ranging a battery operated DVM suitable for panel meter applications. Also, circuit ideas will be presented for conductance and resistance measurement, 9V battery and 5V supply operations, and current measurement.
Pin Note Web Gadget
This is a Tiny memo Pad that will have Sticky Notes on Webpage, saves in cookies. This Web Gadget was for the Homepage, Web-page or blog. Pin Notes. This is not an electronics gadget, but i wanted to try building it, The inspiration for this has been Stickies. Which i have been using for some time. So i built this for my learning.
ATmega328 Single Board Computer SBC
The Atmel 8-bit AVR RISC-based microcontroller combines 32 KB ISP flash memory with read-while-write capabilities, 1 KB EEPROM, 2 KB SRAM, 23 general-purpose I/O lines, 32 general-purpose working registers, 3 flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, 6-channel 10-bit A/D converter...
Omnispace and Agora-Project
Agora-Project is the open-source software on which the Omnispace service is based. Omnispace is a collaborative work platform: it is a website and a service that centralize knowledge management and project management tools.
Analog Bargraph Clock
Analog Clock, Linear Display of Time Elapsed using Bargraph, Shows Week Days and Month Days Passed. The WD indicates Complete Week Days passed and MD is Month Days Completed. This is not the date, date is MD+1. This is an example of CSS Animation, that was the Motivation for this clock
CPick - HTML or HEX Color Picker
Sam Francke created a versatile freeware for a web designer or programmer. The colors for the GUI for the Web Application or Software can be chosen by this extremely useful software. Program to get colors from your screen with the build in magnifier. Zoom 1 to 10. Modify colors with the RGB or HSV slide bars. Copy the color to the clipboard as Hex, Decimal, RGB or HSV value.
ExpressionEngine Content Management
ExpressionEngine is a flexible, feature-rich content management platform that empowers hundreds of thousands of individuals and organizations around the world to easily manage their web site.
PanZoom - Zoom Scroll Picture
PanZoom is a lightweight native JavaScript library for panning and zooming elements using CSS3 Transformations. It’s built to have a small footprint and be and simple to use. All your elements given by your selector will now have panning and zoomming functionality. For example, we could have the class panzoom which has many elements.
Oscilloscope with JavaScript
The Oscilloscope is a Real Time Graph of Volts Y and Time X at any node of a circuit. It can show both AC and DC. This is a Virtual JS Oscilloscope - Fourier Series Periodic Waveforms using JavaScript. This is a Toy Scope or a waveform display which i will integrate with my other tutors to display AC points in place of voltmeters. Virtual JS Oscilloscope
Sylpheed Email Client
Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client. Sylpheed provides intuitive user-interface. Sylpheed is also designed for keyboard-oriented operation, so Sylpheed can be widely used from beginners to power users.
Digital Alarm Clock
Digital Alarm Clock Web Gadget with Musical Alarms. This Web Gadget is for the Web-page or blog. You can set Five Alarms with Ten Selectable Musical Sounds and a small Text memo. The simulation is as close as possible to a uC based Clock which you could build, The GUI is more like a electronic gadget than a Software Application. That should charge you to build your Alarm Clock today. ... Alarm Clock Manual
EE widgets of delabs
These are Gadgets i HandCrafted with JavaScript. Add them to your Webpage or Blog. There are Web widgets related to learning electronics and also demonstrating the subtle aspects of Product Design Technologies.
Aircraft Dashboard Chronometer
Digital Clock with 24 hour Military Time Format, Aircraft Dashboard Chronometer Like Looks, Date, Time, Weekday and Week of Year. Clock Gadget, looks like a Clock in Cockpit Dashboard. It is a Mimic of A Flight Chronometer Instrument. It shows Time and Date close to Military Time-Date format. It also has week number and weekday display.
Openclipart - Colorful Clipart Images
Openclipart initially grew out of a project started by Christian Schaller , who on October 26, 2003 issued a challenge on the Gnome Desktop website for users of Sodipodi to create a collection of flags in SVG format. The project became known as Openclipart by April 2004, with the stated aim of all contributed images being dedicated to the public domain.