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Archive: Electronics
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August 15, 2007
Early electronic handheld games
Great (funny) gallery of early electronic handheld games, which ones did you have? Or for the youngins' here, which ones are you going to circuit bend? - [via] Link.
Posted by Phillip Torrone |
Aug 15, 2007 08:00 AM
Electronics, Gaming, Retro |
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August 14, 2007
Tutorial on the 128x128 Nokia LCD display
Our friends over at Sparkfun have put up an excellent PDF tutorial on interfacing with the Nokia 128x128 LCD display (or knock-offs thereof). SparkFun sells such a knock-off for a mere $20.
Nokia 6100 LCD Display Driver Tutorial [PDF] - Link
Color LCD 128x128 Nokia Knock-Off - Link
Posted by Gareth Branwyn |
Aug 14, 2007 08:00 PM
DIY Projects, Electronics, Mobile |
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| Comments (3)
Simple robot how-to
David writes -
This tutorial will show you how to make a very simple robot that will avoid obstacles on the ground. It uses no microcontrollers, no servos, and there is no need to program. The simple design make its an ideal project for those wanting to tryout robotics and also makes a great weekend project. After building one you can probably make a second one in less than 10 minutes.Simple Robot How-To - [via] Link.
Posted by Phillip Torrone |
Aug 14, 2007 07:00 PM
Altoids and tin cases, Crafts, Electronics, Robotics |
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| Comments (6)
QRPme - Tuna can kits
Jason writes -
This amateur radio club provides kits uniquely packaged in tuna tins. When you build the kit, the tuna tin also serves as a chassis for your new project, complete with a nice label for the tin. Although most of the kits are geared towards QRP (low power ham radio) operators, Make readers might enjoy the "AXEme Picaxe Construction Kit". This is a Picaxe development board built into one of the famous tuna tins. It's a very unique and eye-catching way to work with microcontrollers.QRPme - Link.
Posted by Phillip Torrone |
Aug 14, 2007 05:00 PM
Altoids and tin cases, DIY Projects, Electronics, Kits |
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| Comments (1)
Home built solid state 300W power amp
I know nothing about homebrewing audio gear, but this DIY 300W power amp, built on six LM3886 chips, sure looks bad ass. Here's how the builder describes the project:
My design uses a PCB to hold 3 paralleled 3886s (i.e. PA150), and then I use the DRV134 to bridge 2 of the PA150 PCB boards. The function of DRV134 is to convert the un-balanced input signal to a balanced signal, so that the non-inverted signal is fed to one PA150, and the inverted signal is fed the another PA150. One of the PA150 is connected to the speaker's positive input, and the other PA150 is connected to the speaker's negative input. Because of this push-pull configuration, the total gain of the amplifier is doubled. Each PA150 has a gain of 20, so the gain of the BPA300 is 40.
DIY BPA300 GC - 300W 6x LM3886 bridged-paralleled power amplifier - [via] Link
Posted by Gareth Branwyn |
Aug 14, 2007 04:00 PM
DIY Projects, Electronics, Home Entertainment |
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Ben Heck goes inside the 360 Elite
Hardware hacker extraordinaire Ben Heckendorn (a.k.a. Ben Heck) is using the guts of an Xbox 360 Elite for his next project, a 360 laptop. In preparation for this, he cracked one open, did some creative deconstruction, and has documented the results in two articles.
Inside the Xbox 360 Elite - Link
More about the Xbox 360 Elite - Link
Posted by Gareth Branwyn |
Aug 14, 2007 02:00 PM
DIY Projects, Electronics, Gadgets, Gaming |
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| Comments (3)
Essential electronics for software folk
This looks like a GREAT book, it says it's coming out in August and in PDF form, so should be any moment now?
Essential Electronics for Software Folk: Thinking Inside the Box... Are you a programmer or computer enthusiast? Do you feel comfortable with methods, functions, and variables? Do you wish you knew more about how the computer made it all work? Now you can. From basic electronics to advanced computer hardware, you'll learn the magic behind the gear that makes it all run. If you're into tinkering, or ever thought about it, this book explains the basics of how it all works. A lot of people are into Making their own technology these days, from 3D printers to home-made robots, Digital Video Records (DVRs), Media Centers, and more. But it you're a computer programmer you might not know the ins and outs of the hardware side of these projects.Essential Electronics for Software Folk - Link.
Posted by Phillip Torrone |
Aug 14, 2007 12:00 PM
Electronics |
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| Comments (2)
HOW TO - Make a Blinkenlichts, a mood lamp
Here's how to make a spiffy mood lamp from an IKEA lamp, source and schematics are included... - Link & translated site.
Posted by Phillip Torrone |
Aug 14, 2007 10:00 AM
DIY Projects, Electronics |
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| Comments (1)
Decomidi
Code, layout and PCB for a 32 output MIDI decoder - Link.
Posted by Phillip Torrone |
Aug 14, 2007 07:00 AM
DIY Projects, Electronics, Music |
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| Comments (2)
Apple ][ Bluetooth
Vinchysky writes -
I have been an Apple ][ lover for over 20 years. I still remeber those great games on Apple ][. Unfortunately, I was very busy working on degree and my full time job until 3 years ago. I bought several old Apple ][s from EBAY, hoping that I could get those old-time memory back. Soon I found that this was not the case since the floppy drive and diskettes were too old to work. So I started thinking of alternatives, floppy is really not very reliable and, hey, we are in giga speed CPU era, there are lots of advancements in microelectronics after Apple ][ came out in late 1970. So I was thinking of using solid state storage to replace floppy. Like other Apple ][ fans, CFFA was discovered on the net. Although it is a great idea and very decent product, but that was not what I wanted. I want a real Disk ][ clone which can run those many disk images (.dsk, .nib) that you can find from the net. Being an electronic designers, I decided to build a solid-state drive/disk controller card myself!!Apple ][ Bluetooth - [via] Link.
Posted by Phillip Torrone |
Aug 14, 2007 06:00 AM
Computers, DIY Projects, Electronics |
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| Comments (0)
HOW TO - Make an Infrared bazooka (aka recoiless remote)
Steve writes -
This project was inspired by a need to remotely control a rogue television which is far away. The Infrared Bazooka is basically an infrared repeater combined with an infrared amplifier.Infrared bazooka (aka recoiless remote) - Link.There are cool gadgets for remote control of random TVs, like the TVBGone or the Ninja Remote. The Infrared Bazooka allows you to amplify your remote (of any type) for greater range.
The heart of the Infrared Bazooka is an array of 24 infrared LEDs. This is what gives the bazooka amplification relative to a standard remote control.
For the IR LEDs, I'm using part number CAT# ILED-8 from All Electronics, plus some 20 Ohm resistors I picked up from Fry's.
Related:
Tv-B-Gone hat - Link.
Ultra TV-B-Gone - 20 IR LEDs + 9V = 90 ft range! - Link.
Make your own TV-B-Gone? - Link.
HOW TO - Double the range of your TV-B-Gone - Link.
HOW TO - Make a vintage remote TV-B-Gone case mod - Link.
Super 44 IR LED TV-B-Gone - Link.
TV-B-Gone in the MAKE store - Link.
Posted by Phillip Torrone |
Aug 14, 2007 03:00 AM
DIY Projects, Electronics |
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August 13, 2007
Semitone - open dimmer project
Semitone is a cool open dimmer project -
The aim of this project is the development of comfortable standalone digital light dimmers for home use, which are inexpensive, easy to build, yet very feature-rich and configurable. All development details, such as the microcontroller operating systems (firmware), schematics, and documentation, are freely available under the GNU license.Semitone - open dimmer project - Link.
Posted by Phillip Torrone |
Aug 13, 2007 03:00 PM
DIY Projects, Electronics, Open source hardware |
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| Comments (1)
Celebrating LEGO's 75th Anniversary
In honor of LEGO's 75th anniversary, DIY Life has put together a list of 23 of their favorite LEGO projects online (many of which we've already covered here). The one seen above is an amazing, working Guitar Hero game controller modeled after the Gibson Explorer.
LEGO's 75th anniversary: 23 DIY LEGO ideas - Link
Related:
- LEGO Guitar - Link
- HOW TO - Make a DIY PS2 Guitar Hero controller - Link
- Left handed Guitar hero mod & more mods! - Link
Posted by Gareth Branwyn |
Aug 13, 2007 02:00 PM
DIY Projects, Electronics, Gaming, Toys and Games |
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The antique chip collector's page
The antique chip collector's page is awesome, bookmarked! -
Perhaps vintage is a better term than antique although, in Internet years, integrated circuits have been around for more than 120 years. It is absolutely amazing the number and variety of computing devices that have been created and obsolesced in just 40 years. Integrated circuits are used for many purposes, but these pages focus primarily on vintage computing chips from the 60's-80's.The Antique Chip Collector's Page - Link.Theses pages contain information on these vintage chips that is difficult to find. Most publications are written for hardware and software designers. Very few publications are suitable for collectors' needs. How do you identify the chip? What do the markings mean? How can you tell which company made the chip? When was it made? How was it made? What is the history and significance behind the chip? These pages attempt to answer these questions. There is information here for the beginning and the advanced collector.
Posted by Phillip Torrone |
Aug 13, 2007 01:00 PM
DIY Projects, Electronics |
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HOW TO - Hack The Spy Ear and reverse engineer a circuit
Biotele writes -
This instructable introduces the venerable Spy Ear in details and my way to reverse engineer a circuit.Why does this device deserves its own instructable?:
- You can buy a Spy Ear for a dollar!
- It can amplify sounds up to 60 dB or a factor of a 100.
- It has a self limiting property and adjusts the gain so that the amplified signal volume is always just right.
- It runs of two LR44 1.5 volt button cell alkaline battery, so it's perfect for portable projects.
- Many of today's projects, such as in robotics, require analogue front end for sensing the environment and the Spy Ear circuit is just right to fill in as a multi-purpose front end amplifier.
- It is simple enough to reverse engineer.
- I am making another instructable using this device.
- The Spy Ear is a fantastic cheap,small and rugged circuit for modding and hacking.
Posted by Phillip Torrone |
Aug 13, 2007 09:00 AM
DIY Projects, Electronics, Instructables, Toys and Games |
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HOW TO - Make a low cost circuit board pre-heat workstation for solder re-work
JXP writes -
Circuit board pre-heat workstations are very expensive, $350.00 - $2500.00. The goal of this project is to demonstrate how to make a circuit board pre-heat workstation for around $50.00 with no special tools and the majority of materials from Home Depot and Harbor Freight Tools...HOW TO - Make a low cost circuit board pre-heat workstation for solder re-work - [via] Link.
Posted by Phillip Torrone |
Aug 13, 2007 07:00 AM
DIY Projects, Electronics |
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| Comments (1)
Linux based mobile dev kit
Huh, USB, touchscreen, WiFi looks like it has everything to tinker with... -
Unicon System's MKit™ development kit is the first and only unique mobile Linux development kit on the market. It gives professional developers and manufacturers the ability to create new handheld devices for industrial, security, educational and medical applications, as well as various consumer electronics products.Unicon Systems. Linux based mobile dev kit - Link.Our patented, wireless, and mobile chip-on-film Linux computer is based on an ARM9 embedded CPU running full blown Linux 2.6 and attached to the back of a 3.5" touch screen. It is equipped with multiple connectivity options, including two 2.0 high-speed USB host ports and WiFi.
It is a well-designed license free software stack and debugging JTAG board that makes customization easy and guarantees the shortest time to market.
Development kits are available in different modifications including the world's first SDIO Linux Development Kit.
Posted by Phillip Torrone |
Aug 13, 2007 06:00 AM
DIY Projects, Electronics, Kits |
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| Comments (6)
AVR based headphone amp
Here's an AVR based headphone amp from AVR freaks. Simonetta writes -
Headphone amp using National LM4832 audio processor that is controlled through I2C from AVR Tiny13. Unique design has one potentiometer and a single pushswitch. On power-up, the pot controls volume. On first switch press, pot controls treble. Next press, pot controls bass level. On third switch press, the pot goes back to controlling volume. The amp retains the parameter settings set by the previous switch modes. AVR sleeps between 1/15 second intervals. An AVR Tiny13 reads the potentiometer 15 times a second and creates the I2C clock and data signals needed to change the settings of the LM4832. I needed a small but loud headphone amp and was given these LM4832 samples at work. None of the old-school engineers could figure out how to control or program an I2C connection. The code shows a simple but effective way to use I2C with AVR assembler.AVR based headphone amp - Link.
Related:
MAX - headphone amp - Link.
Altoids headphone amp - Link.
Altoids and tin cases archives - Link.
From the pages of MAKE:
Mint-Tin Amp. Pocket amplifier punches up headphones. MAKE 04 - page 141. Subscribers--read this article now in your digital edition or get MAKE 04 @ the Maker store.
Posted by Phillip Torrone |
Aug 13, 2007 05:00 AM
DIY Projects, Electronics, Music |
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| Comments (2)
Hydra kit in the MAKE store
The new Hydra kit is now in the MAKE store - The Propeller-powered Hydra Game Development Kit includes everything you need to get started writing video games. It's not just a game console, but a computer system inspired by the home computers of days gone by.
Features
- The HYDRA Game Console with 128K EEPROM and a plethora of I/O interfaces.
- 9V DC Power Wall Adapter.
- PS/2 Mouse.
- PS/2 Mini Keyboard.
- Nintendo Compatible Gamepad.
- A/V Cable.
- USB Programming Cable.
- 128K Re-Programmable Game Card to Store Games and Applications.
- Blank "Experimenter" Card to Design Your own Add-On Hardware.
- "Game Programming for the Propeller Powered HYDRA" hard copy book by Andre' LaMothe.
- CD-ROM with all source, demos, and development tools.
Posted by Phillip Torrone |
Aug 13, 2007 04:00 AM
DIY Projects, Electronics |
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| Comments (0)
Ambient Devices now offer access to their datacasting chipset
Ambient Devices is now offering access to their datacasting chipset (you could use it to add auto-time set, weather and other net data via radio to your device)... We've included Ambient in our "What is Open source hardware" article. It's $995, and the schematics / layout for the DATA-W1 reference implementation, as well as the RS-232 base station is on the site. Interesting, Ambient built a data network and now they're releasing hardware that can access it, before you would need to buy an Ambient device - now you could potentially get a head start on development if your device(s) require this type of data access...
The AMB-4001-W1 datacast decoder chip allows companies to embed web-configurable weather forecasts and self-setting local time into their products. This chip is the content engine behind the Ambient Devices revolutionary 5-day Weather Forecaster. It makes realtime Internet weather forecasts (or other Internet-based dynamic content) available through a simple query language communicating over a 2-wire serial port. Each AMB-4001-W1 chip is programmed with a unique serial number recognized by the Ambient Network. This allows customers to monitor weather forecasts for ANY zipcode or major city in the world, plus environmental conditions like pollen count, air quality, weather alerts, and more.Ambient Devices Technical Resources - [via] Link.
Posted by Phillip Torrone |
Aug 13, 2007 03:00 AM
Electronics, Open source hardware |
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| Comments (0)
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