The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows operation of the whole system from less than 3V. LM3914 - Versatile and Easy use Display

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K-Meleon is a lightweight, customizable, open-source web browser. It's designed for Microsoft Windows (Win32) operating systems. K-Meleon can use the secure Goanna engine based on Mozilla's Gecko layout engine or Gecko itself.

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The Industrial Electricians Notebook - Free online electrical books selection that features interesting and timely subjects: electrical theory, electrical reference information, electrical equipment and maintenance data, industrial electronics, and electrical safety regulations. 

Kilowatt Classroom Electrical Training

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Mojeek - The alternative search engine that puts the people who use it first. Mojeek Focus Dashboard.

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This tutorial discusses proper printed-circuit board (PCB) grounding for mixed-signal designs. For most applications a simple method without cuts in the ground plane allows for successful PCB layouts with this kind of IC.

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KTechLab project. KTechLab is a an IDE for microcontrollers and electronics. It supports circuit simulation, program development for microcontrollers and simulating the programmed microcontroller together with its application circuit.

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Picoload is a Program which makes it possible to program a microcontrolor peak 16f87X or 16F87XA from microchip without having has to remove this one of the assembly by means of a connection series RS232.

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I am having trouble preventing my rs latch from erroneously setting. The circuit is a voltage threshold detection circuit with a nand gate whose output is tied to a SR latch.

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Over the last few days I’ve been playing around with an old small black and white tv….I did the infamous “Oscilloscope on your TV” thing that’s all over youtube and the rest of the web…grew bored with that, so I’ve decided I want to make it into a fully-functional scope that I can use in my lab.

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Is it good as a (beginner) hobbyist to crave for an oscilloscope.  mail from EA – This scope will work from your PC Audio Card or Sound Card. 

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I would like to buy a Microphone and either #1. an oscilloscope or #2. sound oscilloscope software. For hobby purposes, I would like to sample different sounds & view the various sound waves studying the amplitudes & frequencies.

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The PICList is a collection of people interested in the Microchip PIC and other similar processors who have requested that email sent to the PICList email address be forwarded to them.

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VeeCAD takes a schematic generated netlist and assists you to build a layout – but on stripboard (Veroboard). The usual design tools are provided: netlist import, component footprint definition, component positioning, wiring and connectivity check.

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A technical library for the hobbyist and experimenter. – Charles Wenzel

TechLib – Electronic Experimenter Records

• World’s Smallest Geiger Counter
• Karen’s Mic.

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These are high tech jigs, fixtures and instrumentation/automation gizmos that bill built. Electrical gizmo builder for the UNLV Physics Dept.

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FPGAs are powerful programmable logic integrated circuits. FPGAs are wonderful devices to design digital logic with. You can design a circuit on your computer and have it running on your desk in minutes.

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Can you help me to find circuits which uses photo-sensors.and if you do have them, would you please send them to me.

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