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delabs dapj tech news
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- Tandy Whiz Kids Comics
- Analog Op-Amp Circuits
- Gadgets as Visual Interface for Process Control
- Digital Dice Cubes
- EEMetric.com is for Sale
- 74HCT373 Octal transparent D-type latches
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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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 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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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.
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.
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 - 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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- Design Notes – Analog Basics – 06 Building discrete semiconductor and passive designs, using Opamps and Mixed (more…)
- Design Notes – Power Electronics – 03 SMPS designs should have clear line or patch of isolation (more…)
- Instrumentation and Automation – 01 Here are some Test and measurement notes. These ideas come (more…)
Electronic Circuits
delabs Electronic Circuits
- Flashing LEDs Electronic Kit
- World of Heathkit do-it-yourself electronics
- LED Blitzer is a LED Blinker
Flashing LEDs Electronic Kit– ApogeeKits created the Flashing LED’s electronic kit AMK102B as an entry level introduction to electronic kit building.
World of Heathkit do-it-yourself electronicsAll of man’s progress has stemmed from ideas, ideas held by men and women who pioneer new concepts.
LED Blitzer is a LED BlinkerThis strange circuit was in Openclipart i am not sure if it will work. Later i found (more…)
Hobby DIY Electronics
delabs Hobby Electronics
- 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.
Tech Media Network
Tech Media Network
- DMM Multimeter DM2867
Buy our new DMM with all the features you Expect. Extra Safety Improvements. True RMS and True Watts.
Sale This Fortnight – Just 100 USD Buy it at Mint Shop today and win an Oscilloscope if you become our 10,000th customer.