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Archive: Electronics
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August 31, 2007
Firefly PCB
John writes -
The Firefly is a tube-based guitar amplifier popularized on ax84.com (a tube amp community and forum). The Firefly PCB was created so even the beginner to tube amps can succeed. The PCB is "open hardware" meaning that the PCB file is free to download and modify as well. Otherwise the PCB's are sold for $19 each. There's a detailed assembly guide as well for download at the site.Firefly PCB - Link.
Posted by Phillip Torrone |
Aug 31, 2007 03:00 AM
DIY Projects, Electronics, Open source hardware |
Permalink
| Comments (2)
MAH PONK: An open table tennis videogame
Viacheslav writes -
I wanted to do something that has a VGA compatible output. I also had an FPGA board lying around and a bad itch to do something useless. With the help of fpga4fun.com, various online Verilog HDL references and VGA timing information I made something that outputs a steady checkerboard picture to a VGA display. That was cool but after a short while the excitement dried out, I needed something more serious. My imagination is quite poor and in a short while I had two paddles on the screen.. And so it began.MAH PONK: An Open Table Tennis Videogame - [via] Link.
Posted by Phillip Torrone |
Aug 31, 2007 02:00 AM
DIY Projects, Electronics, Gaming |
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| Comments (0)
August 30, 2007
HOW TO - Build a very fancy crystal radio
I was never much into amateur radio or crystal set building, so I can't judge the technical veracity of this project, but the how-to looks very thorough and the results are spectacular. The dials, tap switch and case are so cool-looking, they make me want to build one.
Build an antique style crystal radio - Link
Related:
- HOW TO - Building a crystal radio out of household items - Link
- Crystal radio mousetrap - Link
- Make a "Cigar Box" crystal radio set - Link
- Crystal Radio Kit for the Modern Era - Link
- The "Built From Scratch" Crystal Radio - Link
Posted by Gareth Branwyn |
Aug 30, 2007 08:00 PM
DIY Projects, Electronics, Instructables, Retro |
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| Comments (0)
HOW TO - Make your own solarbag
A two-part piece on Talk2MyShirt, a wearable electronics blog, shows you how to roll your own solar-powered device-charging bag.
Make your own Solar Bag and the sun power will be with you - Link
Related:
Posted by Gareth Branwyn |
Aug 30, 2007 04:00 PM
Crafts, DIY Projects, Electronics, Green, Mobile |
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| Comments (1)
iPhone accelerometer hacks
On the Medallia blog, Erling Ellingsen has been monkeying around with the accelerometer on the iPhone, some applications of which he demos in the above video. He writes:
As it turns out, the iPhone has a built-in LIS302DL, a tiny 3-axis accelerometer. While some have attempted to use it from within the Safari browser (the Tilt game detects changes to the width of the browser page; it is basically used as a 1-bit input device), its potential is still somewhat untapped. After a rather lengthy bout of reverse-engineering (I had barely touched ARM assembly before this), I finally figured out how to access the raw data from the accelerometer itself, as can be seen in the video above. Source code is posted here. (update: yes, it is possible to access the accelerometer directly through UIKit without this hack -- however, you'll be locked to the default sample rate, which is too slow for some of the fun stuff)
Fun with the iPhone accelerometer - [via] Link
Posted by Gareth Branwyn |
Aug 30, 2007 02:00 PM
Computers, Electronics, Gadgets, Mobile |
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| Comments (0)
The Breadboard Band
The Breadboard band do not play instruments, they play breadboards (check out the images and videos)... Link.
Posted by Phillip Torrone |
Aug 30, 2007 01:00 PM
DIY Projects, Electronics, Music |
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| Comments (1)
HOW TO - Control an iPod with the Arduino
Here's a great HOW TO on controlling an iPod with the Arduino, Jonas writes -
This tutorial will describe a way of controlling an iPod remote, and thus, an easy way of getting some music and sound out of your Arduino project. The remote we used was an unofficial remote I found on the worldwide auction site for around 10 USD, an opto-isolator can be found in your local electronics store.Control an iPod with the Arduino - Link.We used a TIL116 opto-isolator between the Arduino and the remote to safely send signals in between the two. The remote works by you pushing a button which closes a circuit and that is interpreted in a certain way by the iPod. What you need to do is to send a pulse to the opto-isolator that makes it close the button-circuit, and then open it again. Depending on what you want the iPod to do, you need to send a longer or shorter pulse, i.e.. a long pulse sent to the play/pause button will shut the iPod off, a short pulse will play/pause the track.
Posted by Phillip Torrone |
Aug 30, 2007 09:00 AM
Arduino, DIY Projects, Electronics, Open source hardware |
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| Comments (3)
Talking CD cases
These talking CD cases from Pre.vu might be fun to hack up / bend... - [via] Link.
Posted by Phillip Torrone |
Aug 30, 2007 03:00 AM
DIY Projects, Electronics, Gadgets |
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| Comments (0)
August 29, 2007
Youscope (oscilloscope demo)
Miikka writes -
It's bit late and off-topic, but anyway, if you haven't seen it yet... here is a cool use for your oscilloscope: use it as a display for a demo. This demo won the third place in Assembly Summer '07 shortfilm competition. I really like those sine waves. By the way, the guy who made this is 15 years old. The oscilloscope is connected to PC soundcard and is in X/Y-mode, with right channel connected to X and left to Y input. Download its waveform from here to see it on your oscilloscope!
Posted by Phillip Torrone |
Aug 29, 2007 11:00 AM
Arts, Electronics, Music |
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| Comments (6)
MemPot v1.0, potentiometer with a memory
Dnny writes -
MemPot is a control interface for circuit bent instruments and sound generators. MemPot is a built around PIC 16F819 microcontroller that reads analog resistances, records them to memory and plays them back via digital potentiometer DS1267 chip. The memory buffer size and the playback speed can be adjusted.site includes all plans for doing one for yourself.» MemPot v1.0, potentiometer with a memory -Link.
Posted by Phillip Torrone |
Aug 29, 2007 09:00 AM
DIY Projects, Electronics |
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| Comments (0)
Bug Labs BUGbase & BUGmodules
Bug Labs, a start up that's attempting to bring some open source hardware action to more developers out there just updated their site with a bit about their dev environment. They're still looking for beta testers too so sign up if that's your thing... -
BUGbase is the foundation of your BUG device. It's a fully programmable and "hackable" Linux computer, equipped with a fast CPU, 128MB RAM, built-in WiFi, rechargeable battery, USB, Ethernet, and a small LCD with button controls. It also has a tripod mount because, well, why not? Each BUGbase houses four connectors for users to combine any assortment of BUGmodules to create their ultimate gadget.Bug Labs: Products - Link.
I haven't seen more than hardware samples so far, so I can't really comment on this more than it looks interesting and they seem to be saying/doing all the good things for OSH so far.
Related:
- Bug labs - hardware, first look - Link.
- Bug labs - Link.
- Open source hardware licenses - Link.
- What is open source hardware? - Link.
Posted by Phillip Torrone |
Aug 29, 2007 04:00 AM
Electronics, Gadgets, Open source hardware |
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| Comments (0)
Monitor Hack: High voltage security system
Don't and I mean *really don't* do this, it's a mod to a monitor using it's power to make an electrified fence. The video is really funny and interesting enough to discuss, but really don't do this, hope that's clear enough - do enjoy the video though. We had an earlier discussion about high voltage DC you might want to check out - Link (video @ info).
Posted by Phillip Torrone |
Aug 29, 2007 02:00 AM
Electronics |
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| Comments (9)
Volta - Audio signal controlling a cathode ray oscilloscope
rf00101 writes -
This is an excerpt from my video installation VOLTA (2006). It is made using audio signal to control a cathode ray oscilloscope (exactly the same as the techniques behind the 'backscatter' DVD but a little more advanced.
Posted by Phillip Torrone |
Aug 29, 2007 01:00 AM
Arts, Electronics, Music |
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| Comments (0)
DIY iPhone charger (The MintyBoost works with the iPhone)...
I have been doing some testing with the iPhone and the super efficient MintyBoost we have @ MAKE. The first revision of the iPhone firmware didn't seem to like any 3rd party chargers, but since the latest updates everything seems to be working. I'm still doing testing but it looks like you might be able to get 2x the video, audio and web use with the MintyBoost, but I need to do more testing and be in one place for that long to confirm... - [via] Link.
Posted by Phillip Torrone |
Aug 29, 2007 12:00 AM
DIY Projects, Electronics, iPod |
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| Comments (10)
August 28, 2007
Arduino LDTV - Low res TV!
Mark writes in with another Arduino project! It's Arduino Tuesday! -
Rather than driving a video display, I took the Arduino in the opposite direction, driving the SparkFun RGB LED Matrix Backpack. This is paired with a Python program (running on a rather more powerful computer) which is downsampling video files and sending them to the Arduino for display. The Arduino is driving this very lo-fi monitor. (The IT Crowd looks great on it!)Arduino LDTV - Link.
Posted by Phillip Torrone |
Aug 28, 2007 11:00 AM
Arduino, DIY Projects, Electronics |
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| Comments (1)
Gold Phoenix vs. Olimex
Flemming writes -
There has been some stirring lately about using Gold Phoenix for hobby projects, all kicked off by a blog entry by Julian Bleeker, so as my favorite board house was on holiday I tried this newfangled Chinese outsourcing and compared it to Olimex.Gold Phoenix vs. Olimex - Link.
For folks who don't know about this, Gold Phonenix makes PCBs (Printed circuit boards) and they do it very fast/cheap...
Posted by Phillip Torrone |
Aug 28, 2007 09:00 AM
DIY Projects, Electronics |
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| Comments (0)
Building an open source self balancing scooter
Here's another homemade self-balancong scooter! Malcolm writes -
In recent times, advanced electronic systems have become cheaper and cheaper and at the same time become more complex. The price of the components are now within reach of the hobbyist (e.g. Gyro and Accelerometer). This allows more complex systems to be built at relatively low cost. And most important these advanced technologies can be used by individuals and hobbyist where they were previously only available to more wealthy individuals and corporations.Building an Open Source Self Balancing Scooter - Link.This is also an excellent example of Peer to Peer Development that brings together people from different continents and backgrounds to develop a common product.
This is a project I had contemplated for quite a few years since first seeing the Segway on the Internet. I saw and had a ride on Geoffrey Bennett's home made scooter at the Linux Conf in 2007 in Sydney. he also offered the source code on his web site which was going to be the hardest part for me. Follow the link to follow the construction and description of how it works.
Posted by Phillip Torrone |
Aug 28, 2007 04:00 AM
DIY Projects, Electronics, Transportation |
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| Comments (0)
HOW TO - Make a portable "point of sale" listening kiosk
Brian writes in -
Most musicians who have tried to make money performing and selling CDs know how hard it can be to get people to take a chance and purchase music from smaller, independent artists. My band, The Highway Beautiful, saw a need to have potential customers listen to our CD before they purchased it, or before they would attend our performance at a music festival.HOW TO - Make a portable "point of sale" listening kiosk - Link.While most of the "making" we do is typically musical in nature, and doesn't involve physical construction, occasionally we get a chance to work on a project. This was our first attempt at an instructable, and we're excited about how both it and the project turned out. We're definitely going to do more of this!
Posted by Phillip Torrone |
Aug 28, 2007 03:00 AM
DIY Projects, Electronics, Music |
Permalink
| Comments (0)
ArduinoSynth alpha
Collin writes -
Because I know there just aren't enough Arduino projects, I thought I'd tell you about my stab at an Arduino Synthesizer. It's currently monophonic with pitch control and a simple hardware low pass filter. I'm working on adding MIDI-in and hopefully vibrato in the future. Thanks for the inspiration, Make!Narbotic » Blog Archive » ArduinoSynth alpha - Link.
Posted by Phillip Torrone |
Aug 28, 2007 02:00 AM
Arduino, DIY Projects, Electronics, Music |
Permalink
| Comments (0)
August 27, 2007
MCUs in about an hour
The wire-nuts over at uC Hobby have posted a how-to on making a programmable hobby microcontroller board in an hour, for around $15. This piece was submitted as part of uC Hobby's "Hobby parts for articles" program. The submitter, James Moxham, scored himself a Bare Bones Arduino Kit.
1-Hour $15 Hobby Microcontroller How-To - Link
Related:
- MAKE microcontrollers articles - Link
Posted by Gareth Branwyn |
Aug 27, 2007 06:00 PM
Computers, DIY Projects, Electronics |
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| Comments (0)
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