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dangerousprototypes.com writes:
43Oh has announced that entry to their May 2011 contest is open. This is an opportunity for you to show off what you can do with the MSP430. The winner will be determined based upon poll results of members of the 43Oh.com forum. Check out the 43Oh contest page for full details, rules and prizes.
43Oh project of the month contest - [Link]
We are proud to announce the “Get Paid to Publish your Project” program here at Electronics-Lab.com. Every project published under project section will get an instant PayPal payment of 80$ USD.
Get ready to submit your project at Electronics-Lab. To participate send your project to webmaster @ electronics-lab.com with “Get Paid to Publish your Project” in subject line and your project as attachment. Common file types (.doc, .jpg, .pdf etc) are accepted. After reviewing your project and approved for publication it will be published under project section and you receive the payment to your PayPal account. So simple!
A project to be valid should be:
- A high quality project.
- Designed by you.
- Not published elsewhere on the web.
- Has clear schematics, photos, description and PCB.
Every project approved will be published and will receive the payment. You will notified by email if your project is accepted.
If you have any questions, don’t hesitate to contact us
Check submitted projects here
Get Paid to Publish your Project! - [Link]
Illuminato board project – it’s an Arduino / Freeduino board that has 42 digital IO’s and 64k code space. All of the schematics and files are over here.
Illuminato board project - [Link]
A small and simple tube amplifier project using one 6T9 vacuum tube per channel. A single PCB makes this a simple project even for beginners. The enclosure is a low cost baking pan.
If you are just getting into do-it-yourself (DIY) audio and have wondered about building a valve amplifier but been put off by the seeming complexity and high voltage, this 6T9 valve based amp may just be the answer. The high voltage concern is a real one and is no less important in this project than any other. But what does soften the build complexity is the entire amplifier is based on a single printed circuit board (PCB). The valve used in this project is the 6T9 compactron which is a triode and pentode in the one envelope. The 6T9 valves I used are new old stock (NOS) General Electric which are cheap (about $7) and available from several online sources such as Tube Depot.
DIY 6T9 Tube / Valve Amplifier Project – [Link]
If you want to learn how to control RGBLED this is the right website that you should to visit.Here is the sumary about this website “The RGBLED and mRGBLED controllers allow you to control the color of RGBLEDs. This might sound trivial, but it actually takes a lot of resources to let you be able to set an RGBLED to any color you’d like. In addition to just lighting an LED up with a given color, these boards also let you install a color or setup transition/animations effects. They are easily controller via an RS232 connection (serial port) or an SPI connection (logic level).The boards can be built reasonably inexpensively and there are PC boards available for either model. All source code for the onboard PIC processor as well as the software for configuring and using the controllers is available. The protocol is a simple protocol well documented.” [via]
RGBLED Controller Project - [Link]
Martin Paul writes:
The FX120 will need a little help on the bottom end. The goal was to let them go down to about 50 Hz. With the Mathcad worksheets I designed a Mass Loaded – Tapered Quarter Wavelength Tube (ML-TQWT). Afterwards I contacted M.J. King and asked him to have a look at the simulation I had completed. With his feedback “I think you have a design” (I want to thank Mr. King for his kind help and advice) I made some test enclosures out of chipboard. Figure 1 shows the calculated frequency response for the FX120 for the enclosure shown in Figure 2.
Fostex FX120 MLTL Speaker Project - [Link]
Alex @ trossenrobotics.com writes:
Once again, the Trossen Robotics Community came through with some amazing ideas. This is our fourth contest we have ran and are very excited to announce the winners of this round’s Trossen Robotics contest. This time around, we extended the deadline and upped the prizes. In case you’re new to the Trossen Robotics Community (TRC), here’s a quick overview on how this contest works:
A wide range of talented and dedicated people come to our Project Showcase forum to show off a project they’ve been working on. Periodically, we, the Trossen Robotics team, sort through these projects, and score them very “scientifically” in the following categories:
- “Wow” factor
- Ingenuity
- Creativity
- Presentation (graphics, videos, documentation, explanation, etc.).
This round ended up being the toughest yet on voting. There were soo many incredible projects from community members. We run this contest to help promote and encourage innovation and ingenuity. People are allowed to submit a wide range of projects ranging from robotics, automation, art, RFID, DIY, mods, inventions, and anything else demonstrating some form of technological creativity.
Read all about the winners and their projects in our Blog: If all goes as planned, the next contest (which is already underway) will conclude at the end of May 2008. You can stay up to date on contest rules and regulations at the Trossen Robotics Project Contest page , and start posting your projects in our Project Showcase Forum.
Contests: Trossen Robotics Community - [Link]
