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BASIC4MCU | 여러가지 회로들 | My Electronics Projects - Tripod

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작성자 키트 작성일2017-08-24 10:59 조회476회 댓글0건

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Jim's Weird Wired World

Contents

Electronics Projects

Here are some of my electronics projects. They are currently uncategorized, since there aren't very many.
  • Remote-control system This is a simple remote control system using DTMF encoders and decoders. The medium used is FM radio.
  • μP-based Digital Voice recorder Here is my 6th sem college project, which I did with my group members Venkatesh HB and Gautham Krishnamurthy. Records up to 4 minutes of audio onto Flash data-storage chips.
  • Ni-Cd Battery charger This is an automatic Ni-Cd/NiMH battery fast-charger. It can charge up two AA-size NiCd cells in about three hours. Automatically switches to trickle charge when charging is complete.
  • Dynamic Noise Reduction This is a project straight out of a National Semiconductor application note. It helps to drastically reduce the effect of tape-hiss on cassette-recording.
  • MyFirstAmplifier™ My first audio power-amplifier. Resulted in fireworks!
  • PC-based stepper motor driver Makes use of a PC's parallel port to control a stepper motor salvaged from an old 5¼" floppy disk drive.
  • Four-hour timer A timer to switch off an appliance after four hours. Can be extended further.
  • Atmel AVR In-System Programmer Can be used to program Atmel AVR MCUs using an IBM PC's printer port. Compatible with the Kanada Systems STK-200 starter kit and programmer interface.
  • LED Level meter This little project is useful as an audio level meter.
  • Digital Voltmeter Here is a good interfacing project, using a PC as a digital voltmeter.
  • Audio Signal Source Useful for home laboratories, to produce test signals for injection into audio circuits
  • DSBSC Modulator and DPSK demonstrator Produces DSBSC modulation of an analog input signal, or DPSK modulation of a digial input signal.
  • Six-channel Mixer and Amplifier Audio mixer project. Has six microphone inputs, line-out, line-in and auxilliary inputs. Includes master volume/tone control and a stereo 68W (RMS) per-channel amplifier.
  • High Resolution Digital Voltmeter A six-digit DC/True-RMS AC Digital Voltmeter with a PC interface.
  • MOSFET Integrated Power Amplifier An integrated power amplifier/preamp, with MOSFET output stages, a microcontroller (PIC16F84) to set the volume, balance, Bass Boost and input source, LCD display and remote control.

Articles

This is some stuff I've thrown together. It mainly concerns hobby electronics, with a bias towards hobbyists in Bangalore. I don't consider myself all that good a writer, my English may not be too great.
  • Where to buy components. This is a list of component stores, and what carries what. This site is entirely Bangalore specific, but if anybody's willing to give me info about other cities, I'll gladly include it here.
  • What equipment should I have? Here's a list of essential equipment for any electronics enthusiast. Remember that I'm a College student, with a (very!) limited budget, so this list keeps that in mind.
  • Circuit construction techniques This is a description of how I construct the circuits listed here. It covers two techniques: pseudo-PCB and PCB etching.
Some nice articles I've found on the net.
  • 50Ω notes Written by Dan Doberstein and John Marchetti, an intuitive explanation of characteristic impedance

Links to Electronics Sites

These are links to some useful electronics-related sites on the WWW. Note that the sites do not open in seperate windows. If you'd like this to happen, most browsers allow right-clicking a link to open up a context menu. This should have an "Open in a New Window" option.

General pages

  • The Giant Internet IC M*st*rb*t*r, despite it's name, has nothing to do with porn or anything. It's a collection of pinouts for most common logic chips of the 74 series and 4000B series chips. While manufactureres allow you to download datasheets, these lists give quick pinouts and are ideal for choosing a chip suited for a particular application.

Hobby related pages

  • Elliot Sound Products - The Audio Pages is simply the best site I've ever come across about audio. It covers amplifiers, mixers, power supplies and lots more. There are a number of excellent projects to try, and a lot of very well written and informative articles to read.
  • ePanorama.net - All About Electronics, a nice collection of articles and circuits to try.
  • Don Lancaster's Guru's Lair, by the legendary Don Lancaster. Contains an online magazine, with some nice articles to read.
  • Electronics Tutorials Pages by Australian HAM operator Ian Purdie. Contains some very good articles on electronics fundamentals, and a couple of circuit examples. He even sends a free monthly newsletter on request.
  • Electronic Circuit "Beans" Collection is a Japanese site, with some very well constructed circuits. Includes PLLs, regulators, etc. Some of these pages seem to have been automatically translated from Japanese, so the English may suffer a bit. Pay special attention to his style of construction... very neat.
  • AVRFreaks, a site dedicated to Atmel's AVR series of microcontrollers. Includes a discussion board, downloadable datasheets, tools section and a projects section.
  • Douglas Self's website, a site all about Audio. Includes "The Amplifier Institute", and some very informative articles on Mixer design. Some (actually, most) of it was way over my head, but nevertheless readable.
  • Datasheets at University of Hertfordshire, a good collection of datasheets for logic ICs of various families.

Company websites

  • National Semiconductor Carries a large number of datasheets and appnotes on the LM series linear ICs. Very comprehensive site.
  • Fairchild Semiconductor After National Semiconductor stopped production of Digital ICs, Fairchild took over this responsibility. Hence, all of NS's digital ICs (except the COP microcontrollers) are documented here, with datasheets.
  • Maxim Corp. Maxim's impressive range of ICs is documented here, with datasheets and product selectors. Maxim will allow you to sample some of their ICs free of charge. Having said this, please do not misuse this facility.
  • Analog Devices Contains datasheets and appnotes for Analog Devices' product range. Includes free downloads of assemblers, simulators, etc. for AD's SHARC DSPs.
  • Texas Instruments TI's website carries datasheets and downloads, but requires you to register at the site to access the downloads. TI offers free samples, but you'll have to pay the shipping charges (a friend of mine didnt know this, and asked for a sample of an ADC, for which he paid Rs. 350 shipping)
  • Motorola Semiconductor Datasheets and appnotes for Motorola's range of chips.
  • Intersil Datasheets and some rather amusing appnotes for Intersil chips.
  • Atmel Contains a large number of datasheets and appnotes for Atmel's AVR, 80C51 and ARMThumb microcontrollers. Programmers, Assemblers, etc. can be downloaded from here. Includes links to C compiler and other third party tool vendors
  • Microchip This stylish site includes appnotes and datasheets for Microchip's amazing PIC series of microcontrollers. The appnotes are a valuable source of project ideas.
  • Coilcraft Contains an electronic catalog of this company's products (inductors of various capacities). Coilcraft has a special student policy for ordering samples of their products.
  • CadSoft You can pick up a freeware version of their EAGLE Schematic editor and PCB layout software. This is useful when designing your own PCBs, or to plan the layout on a veroboard.




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