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  • Tandy Whiz Kids Comics
  • Tandy Whiz Kids Comics

    TRS-80 Computer Whiz Kids - appeared in 1984. Eight issues in all are known to have been published, the last appearing in 1991.

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  • Analog Op-Amp Circuits
  • Analog Op-Amp Circuits

    Operational Amplifiers - With a few Op-Amps and a regulated Power supply, many Instrumentation and Process control equipment can be designed. The Human Brain understands Numbers, Quantity and it regulation very well ! On the right you can see a analog controller based on opamps and discrete devices. A Heater, Fan and Motor is regulated, controlled and timed for a process.

    Analog Op-Amp Circuits

    Analog is about numbers, the circuits can be understood and designed mathematically or empirically. Designing and Building a True RMS Rectifier with Op-Amps, will help a designer digest many Op-Amp capabilities.

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  • Gadgets as Visual Interface for Process Control
  • Gadgets as Visual Interface for Process Control

    Here is is gadget GUI for Industrial Process control, WebApps. The buttons make a sound and Light up internal LED lamps. Power On-Off control, Digital Timer; Start, Reset Scroll and Select are the controls.

    An Image ScreenShot is above.

    A Web Widget which is a Preset Timer. This can be Programmed from any Browser. It can also be modified to control external outputs. This project will only be a Web Gadget for Education, it will not have any external interface.

    Live Gadget that can be Operated



    I will first make some simple examples with this UI. Then i will try to interface the javascript with PHP-MYSQL Application. I am just Thinking Loud. This makes a Globally Distributed Process Control Possible. :~) . You can Use html-js-php-msql. You can use ajax-python-perl too.

    Digital Timer Gadget Visual Interface

    But for now, back to earth, I will just complete some more simple tutorial gadgets. This Idea of mine is Open Source, please keep it that way.

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  • Digital Dice Cubes
  • Digital Dice Cubes

    Dual Digital Dice Gadget - Click the Dice Cube, Wait, It will Display a Random Result, A random generation for rolling and one for showing value. Screenshot of Widget above.

    Dual Digital Dice Cube, It will Display a Random Result for the 6 faces of the Dice, It has both a Cube Animation and Digital Readout for Two Dice.

    Live Dice you can Operate

    Dual Digital Dice Widget Cube, It will Display a Random Result for the 6 faces of the Dice. Electronics Dice gadgets can be built in the same way. The JavaScript for the Digital Readout is written in the way you would write code for a embedded system project. You can try it out on a Tiny chip. Do not use a Big Powerful and Fast Processor for a Small Job. It is like Transporting a bag of Potato Chips in a Nuclear Submarine across the Pacific Ocean.


  • EEMetric.com is for Sale
  • EEMetric.com is for Sale

    The domain EEMetric.com is for sale. The domain is parked here for Display..

    If you wish to buy, comment/feedback on this post with your offer.

    Only domain is for sale, there is no content for sale. I am selling it to raise money to maintain my other websites.

    The Website Domain will be promoted for Three Years after purchase. In other words, you buy the domain and create your website or blog; we will list it and advertise it in our network for Three years for Free.

    (Options- If you want an Application, Blog or CMS setup for this domain. We can do it, fees will be according to the work involved.)


  • 74HCT373 Octal transparent D-type latches
  • 74HCT373 Octal transparent D-type latches

    74HCT373 - High Speed CMOS Logic Octal Transparent Latches with 3-State Outputs. The 'HCT373 devices are octal transparent D-type latches. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs are latched at the logic levels of the D inputs.

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  • Fun with Chemistry
  • Fun with Chemistry

    Fun with Chemistry

    The work of chemists is to study different kinds of matter, these and hundreds of thousands of other kinds too.

    .


  • Peek into the Future beyond 2020
  • Peek into the Future beyond 2020

    First posted around 2006 in "Ideas of delabs" and enhanced later, something to ponder about.

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  • Coat Pocket Computer - delabs Open Design
  • Coat Pocket Computer - delabs Open Design
    Coat Pocket Computer - delabs Open Design

    I could find that many HandHeld Computers are Difficult to use and the User Experience is a bit like wearing Shoes two Sizes Smaller.

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  • PC User Interface and Wireless Power
  • PC User Interface and Wireless Power

    Wireless Charging is a Reality today, it was first conceived by me in the 90s. The first page published related to that in my netscape site.

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  • 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.

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  • 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.

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