Hobby Hound - DIY Electronics

NoccyLabs - Electronics and microcontrollers

2012-05-22T16:24:00.000+05:30

A Reference and Dictionary of electronic circuits, microcontrollers and other chips. Basic Theory and Components too. NoccyLabs - Electronics and microcontrollers Here you can find some information and experiments on the TI Launchpad - MSP430 series, Atmel AVR/Arduino and Microchip PICkit2 / PIC16F series. NoccyLabs Blog

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Grathio Labs of Steve Hoefer

2012-05-21T16:29:00.001+05:30

Steve Hoefer, the main brain behind Grathio Labs. A freelance problem solver and writer. Active in the Open Source software and hardware. Grathio Labs of Steve Hoefer The Secret Knock Detecting Lock unlocks your door when it detects the correct knocking sequence. Secret Knock Detecting Lock

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Measureall Workbench Test Instrument

2012-05-18T16:10:00.000+05:30

This was a Student Project of mine, it is a very basic instruments that could do most of the tasks on a test bench. The cabinet used, was available as a part of a Hi-Fi DIY System, The Range and Mode switches were Modular Stackable Interlocked MultiPole Switches. The rest of the Interface were wirewound pots, jacks, sockets and plugs. The front panel was Engraved Acrylic, the panel was the toughest issue we tackled. I wanted it to look well engineered, at least on the outside. It was a...

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Farnell - Electronic Electrical Components

2012-05-10T13:02:00.000+05:30

Farnell - Electronic Electrical Components "Farnell is a world-leading supplier of electronic components, electronic parts and wholesale electronics including connectors, capacitors, semiconductors, resistors and more" Farnell can supply you with electrical parts including capacitors, transistors, resistors, diodes, fuses, integrated circuits, semiconductors, transformers and many more electrical items and components. element14 - Electronic Engineering Solutions for the Design Engineer...

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RS Components - Equipment Tools Parts

2012-05-09T20:56:00.000+05:30

RS Components - Equipment Tools Parts "RS Components is the UKs largest Industrial Products Catalogue and Data Library on-line. Offering secure on-line ordering with same day despatch for Books, Cables & Connectors, Consumables, Electrical, Electronic, Health & Safety, IT, Mechanical , Office Equipment, Power Supplies, ecomm and Measurement, and Tools. RS Components International RS Components and Allied Electronics are the trading brands of Electrocomponents plc.

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555 based Reset Generator

2012-04-23T15:21:00.000+05:30

You must have read all the circuits and explanation on the other pages at delabs to understand this, as i cannot repeat the same thing as i have done it more than once already. The circuit is a 555 monostable, The push-switch is to trigger and generate a reset pulse for uC. The diode is for OR' ing later. The High will go thru the diode but the Low of 555 cannot drink any current as diode blocks. The bottom part of the Circuit is the CD4093 Schmitt nand based flipflop. This is my favorite...

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Homemade Metal Detector Kit

2012-04-21T20:46:00.000+05:30

This idea is both for indoor and outdoor use, depends on how you could modify or enhance it. The important reason you ought to build this circuit is to learn building non-ic oscillators, this trains you on L, C, R and Transistor Switching. - delabs With a handy metal detector you can check beforehand whether there are metal objects in a wall, ceiling or floor. An LED indicates if a metal object is in the vicinity and keeps your simple home projects, simple and safe. Homemade Metal Detector...

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Metal Detector Projects

2012-04-19T21:05:00.001+05:30

Here are some Metal Detector Projects that are quite interesting for the purpose of education and experiments in the Art of electronics. This site may be as old as Y2K, but the url/domain may have changed. Metal Detector Projects If you are interested in the theory behind the mag I can highly recommend the book The Magnetics Measurement Handbook by J.M. Janicke. Besides a good coverage of magnetics theory, it contains much of what you need to build a useful fluxgate Magnetometer, plus...

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Development boards and Tools - OLIMEX

2012-04-19T16:14:00.006+05:30

SAM9-L9261 is development platform with ARM9 microcontroller, TFT LCD 3.5" 320x240 pixels with TOUCHSCREEN. Development boards and Tools - OLIMEX 64MB SDRAM, 512MB NAND Flash. Ethernet 100Mbit controller, USB host, USB device, RS232 and 40 pin extension port with all unused SAM9261 ports available for add-on boards. Runs Linux, WindowsCE and other RTOS natively. RTC - 3V Li battery. SAM9-L9261 Development Platform with ARM9 OLIMEX Ltd. 89 Slavjanska St., P.O.Box 237, Plovdiv 4000...

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Rigel – Ebedded Controllers and Software

2012-04-18T20:07:00.001+05:30

Manufactures embedded controllers for the 8051, ARM7, C166/C167, and ST10 processors. They supply the hardware, software, and textbooks for embedded Ethernet, industrial control, education, and research. Rigel - Ebedded Controllers and Software Provides professional hardware design, OEM manufacturing services, and industrial software development for the 8051, and ARM7. Rita-51J is a low-cost Internetworkable controller board using Rigel's Internet Technology Architecture (RITA). The...

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LEDwaves - LED Lighting eShop

2012-03-27T14:56:00.000+05:30

eShop and Store for LED Lighting Components and systems. Products include LED Light Bulbs, LED T8 Flourescent Tube Light, LED Flexible Strip Light, LED Street Light Unit and many more. LEDwaves - LED Lighting eShop Easy to install DMX ready RGB Wall washer. Uses 3XLR for DMX connection (in/out) Uses 3 DMX channel (red, green, blue) 36 high-power LEDs used IP65 protection rating Model A36HP DMX Multi-color LED Wall Washer

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Dual Polarity Power Supply

2012-03-23T19:02:00.000+05:30

This supply gives both positive and negative outputs. Appropriate Fuses should be used to protect from fire hazard and overload of transformer. The Filter capacitor C1 4700uF has an impedance of Xc = 1 / (2 * 3.14 * f * C) which comes to 0.6 ohms at 50 Hz. The impedance of the load at 2A for 24V is R = V / I that is 12 Ohms which is more than 20 times the impedance of the capacitor at 50 Hz. That means less than 1 / 20 of ripple current will flow thru the load. The Regulator also reduces...

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Surgical Tools useful for Manufacturing

2012-03-21T15:26:00.000+05:30

Long ago, i was making and supplying some hybrid electronics to some firms. The soldering and handling required some tools and custom jigs which were designed. As the product was mass produced, some tools for managing and working on Tiny PCB's and parts were not available in the market. So a affordable solution was created, the jigs were supplemented by surgical tools. These are the Clips and Tweezers that a doctor uses when he conducts an operation. Let use see one here an Hemostat...

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Electronic Fifteen LED Roulette

2012-03-15T18:43:00.000+05:30

The following was submitted on July 11th, 2007 at 12:47AM (PDT). Message: I want to combine Ne555 with 74154 IC.The indication of the outputs must be shown with LED's but up to so far it need 15 outputs ,is it possible the way i did? if not i will need your assistance Mail from CY See these circuits you will get an idea, Using CD4514 is also possible. LED Sequencer Circuit Electronique Réalisations - Roulette 555 and CD4017 Running Lights delabs

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Virtual Robotics Lab – building a mobile robot

2012-03-12T16:56:00.000+05:30

Virtual Robotics Lab - building a mobile robot The Virtual Robotics Lab is an exploration in top-down robotics that lets you create, control, and understand a virtual version of Iris.4, a real, physical robot. Related Reading - Virtual Robotics Laboratory in Bratislava VirtualRobot - freeware software suite ROVer Ranch - learn robotic engineering My Notes - Robotics is the Magnum Opus of Engineering, It combines Electronics, Mechanical, Computing and also the toughest science know to...

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JeremyBlum.com – From Arduino to Robots

2012-02-22T15:52:00.000+05:30

"I expend the majority of my time and effort building open source hardware and software, producing freelance video tutorials and projects, leading sustainable engineering efforts, doing research.." JeremyBlum.com - From Arduino to Robots Jeremy is a Student of Cornell University's College of Engineering, His blog and projects are an useful resource for students what want to build embedded projects like robots. Wireless Weather Station The system consists of two MSP340 microcontrollers...

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David Bray 1-Wire Barometer

2012-02-21T16:10:00.000+05:30

1-Wire Barometer - 5/10 Volt Design This article describes details for constructing a 1-Wire Barometer which will work on a Dallas Semiconductor Corporation 1-Wire network. This design differs from the popular Version 1.1a in that it has more than twice the resolution. - David W. Bray "The circuit requires an additional power source other than that of the 1-Wire network. The MPX4115 requires about 7 ma of current. This is more than a 1-Wire network can provide without an elaborate circuit...

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Battery Level Indicator

2012-02-20T16:44:00.000+05:30

This circuit uses a LM339, a quad comparator. LM339 can work on single or dual supplies, it has a open collector output that can drive 15mA, low power consumption. The circuit is an untested design but it should work. I did it as many searches were made in my webpages with these keywords. There are many better circuits in the various circuit archives i have linked on the front page, you just have to look around. When you measure the open circuit voltage of a battery with a high impedance...

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MakerSpace Hackerspace and TinkerSpace

2012-02-16T13:43:00.000+05:30

I am using the word MakerSpace for the same Hackerspace for just one reason, many conservative regions in the world are spooked silly when you say the word hacker. I shall use this word Maker so that youngsters and students are not barred from MakerSpace from these regions. Finally i would like to say that we can call them plain TinkerSpace, where youngsters take apart, fix, build Hardware, Software, Webware, Robots and Machines. From Hobby Hound - DIY Electronics Sony used to get the...

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What a Hat can do – RobotGrrl.com

2012-02-01T16:01:00.001+05:30

"I was goofing around the other day thinking of ways that I could use NFC with RoboBrrd. I got a few NFC tags and was also getting a robot achievement badge (thanks Adafruit!), so there had to be some way to connect these things.." - What a Hat can do RoboBrrd from RobotGrrl.com! This is an Interesting Life Form. The RoboBrrd reminds me of Ancient DictaBird from The Flintstones (1994) Movie. From Creations I would prefer one that that may be useful on the Desktop like the...

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Coprolite Homebrew Computer Construction and Electronics

2012-01-21T18:43:00.000+05:30

The first microcontroller I became fascinated with was the 8048 (and 8748). This site has a lot of info on the 8048, including an 8048 Development System. Coprolite Homebrew Computer Construction From Hyper Embedded - Microcontroller ASIC and EDA 8048 The One who started it all …. The roadside attraction of this site is the Z-80 Homebrew Computer. This was a project that I started in 1980. I moved many, many times between 1983 and 1996, and the project often was shut up in a trunk....

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DDDAC 2000 – Audiophile projects

2012-01-21T14:12:00.000+05:30

DDDAC 2000 - Audiophile projects Dedicated Website for Audiophile projects, such as a Diy High End DACs, Loudspeakers, Tube Amplifiers - Doede Douma Setting up an Audio Streaming Server (for use with the DDDAC1543 MK2 - USB) Gydinel, the Loudspeaker Master Reference …… Something completely different: Building your own Home Cinema !!! TUMOS, the MOSFET Power Amplifier with real Tube sound! "The DIY of designing and building of your own equipment is not only very satisfying as hobby on...

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Maplin - Electronic Components and Tools

2012-01-14T16:52:00.001+05:30

Computers and Electrical Spares and Tools. Hobby Gear & Electronics Materials. Educational Kits, Electronic Parts or Components. Cables and Wire management. Consumer Entertainment Electronics. Solar and Alternative Energy Kits. Maplin - Electronic Components and Tools Microcontroller-based function generator capable of producing square, sine, sawtooth or triangle waves. The wave shape and frequency are adjustable via on-board push buttons. Function Generator Kit Uses three IR...

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Dallas Personal Robotics Group - DPRG

2012-01-12T13:27:00.001+05:30

Articles, Photo Gallery, Projects, RoboLinks, Tutorials, Here you can share and exchange solutions and ideas about the exquisite art of Robot Design and Building. Dallas Personal Robotics Group - DPRG DPRG members have created some tips and howto for the common issues faced by robot builders. DPRG Projects After 7 years in the Garland warehouse, the DPRG is searching for a new home. The new plan is to try the hackerspace model, combining grants, donations, and membership fees to fund a...

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Beetle Robot guided by Light

2012-01-02T18:55:00.000+05:30

First have a look at this How to Build a Robot a BeetleBot. This sparked the long lost memory of a book i read around 35 years back. My age was in single digits. This was when i had neither an idea of electronics or could afford any parts. I had built many physics projects like weighing scale, gramophone, telegraph system, crystal radio. I will try to explain these later. Calling bells, gears and magnets from the flea markets my source of electricity & magnetism. I read a hobby...

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