Home Blog  

8 Apr 2011

OSHW Logo Selected! [via]

The results of the public votes for the OSHW logo are in! Almost 9000 people voted, and the community selected “Golden Orb” by Macklin Chaffee as the OSHW Logo v1.0 (submitted on Feb 11th, 2011). Congratulations Golden Orb, thank you all for voting! If you support the OSHW Definition 1.0, you can GO AHEAD and Apply the OSHW Definition and logo to you projects and circuits. Here’s to another great day for Open Hardware!

OSHW Logo Selected! – [Link]

8 Apr 2011

Ytai from Tel Aviv wrote in with a cool new board he developed: [via]

I’m very excited to announce the launch of a new product I’ve been working on for the past months! IOIO (pronounced: yo-yo) is a product which lets you connect electronic circuits to an Android device and control them from an Android application. It is comprised of a small (2.7×1.2″ = 7x3cm) PCB that connects to an Android device with a USB cable and a software library (Java .jar file) that you use in your Android app which handles all communications with the board.

No firmware programming is required – only Android application authoring with a very simple API for controlling the pins on the board. No modification of the Android device is required – you avoid the complication of modification and the voiding of warranty.

IOIO Lets You Control Your Electronics Project From Your Android Phone – [Link]

8 Apr 2011

embedded-lab.com writes:

It is a very simple data logger project based on PIC12F683 microcontroller. The microcontroller reads temperature values from a temperature sensor on a regular interval basis and stores them into its internal EEPROM memory. The recorded temperatures can be later transferred to a PC through serial interface. I originally published this project on electronics-lab.com last summer. I thought this could be a very good learning project for beginners, and so I am posting it here for Embedded Lab’s readers too.

A Beginner’s data logger project using PIC12F683 microcontroller – [Link]

8 Apr 2011

pcbheaven.com writes:

Salvaging parts from old PCBs is one of the most important things that a hacker or a creative electronic enthusiast must have high in his agenda. I used to hack parts with the soldering iron, de-soldering pump and wick, but that is time-consuming and absolutely inefficient. Here is one cool (HOT) way to completely strip a PCB from it’s parts in no time, no matter how difficult it looks.

How to salvage parts from PCBs – [Link]

8 Apr 2011

Jon Chandler writes:

One thing all of our projects need is a power supply. Sometimes batteries are the best answer, but often a AC line-power – DC supply is the right answer. Linear power supplies are easy to build but a “wall wart” is usually cheaper and easier to use. Wall warts come in a confusing array of shapes and sizes. This article will cover some power supply basics and provide guidance for selecting and using these useful power supplies.

AC-DC Power Supplies – Using Wall Warts – [Link]

7 Apr 2011

StartUSB for PIC is a small development board from mikroElektronika featuring PIC18F2550 preprogrammed with an USB bootloader. This tutorial describes the complete setup for this board that will let you start your journey into the world of PIC18F microcontrollers.

StartUSB for PIC board - [Link]


6 Apr 2011

tehnikservice.net writes:

Today we have repaired a LCD Monitor Hanns G HQ191D with model no: HSG1018, came with symptoms that will not to turn on. I opened it and saw that the electrolyte(C907-100uF/400v) cracked, I checked all the primary power supply and I found that the bridge rectifier is in short circuit, and of course (F901-2.5A) fuse protection has been cracked. I changed them and now here it is.

Repairing LCD Monitor Hanns.G – [Link]

6 Apr 2011

tehnikservice.net writes:

Laptop batteries can be repaired but such work only makes economical sense for smaller operators.

The success rate varies with battery type.

One must remember that the ʽsmartʼ battery consists of two parts, the chemical cells and the digital circuit.

In some cases, the chemical part can be fully restored but the fuel gauge may become inaccurate or other data may get corrupted.

Repairing Laptop Battery – [Link]

6 Apr 2011

tehnikservice.net writes:

Today we start with a new category called a “Repairing Section”and start with something easy:), changing the inverter board on LCD Monitor AG Neovo E-19A.The problem was that the monitor turns off after 2 seconds. I want to say that the inverter board did not roll CCFL transformer, so I could not find the original CCFL transformer, so I decided to put a new inverter. Inverter I found on ebay and I changed it and now here it is.

Repairing LCD Monitor AG Neovo - [Link]

5 Apr 2011

The OpenWorld application design contest for STM32 was launched March 15th 2010 to promote technologies and applications that assist persons with handicaps or limiting medical conditions. The contest is open and accepting entries.

The contest is open to students, hobbyists and professional engineers.

The essentials…

What is it:

An application design contest on STM32 ARM Cortex-M3 to promote solutions/technologies that facilitate life for people with handicaps or limiting medical conditions



  • $20000 in cash prizes

Key dates:

  • 15 May 2011 – concept entries to  (best entries awarded EvoPrimer tools)
  • 14 December 2011 – finished applications due

For Who:

Anyone – professional engineers, electronics hobbyists, students, … anyone who is interested in electronics and applications that help the handicapped or disabled.

Where: Worldwide

Technologies of interest:

  • STM32 ARM Cortex-M3 microcontroller
  • MEMS (accelerometer, gyroscope, magnetometer)
  • RF technologies (GPS, GSM, Bluetooth, RFID, Zigbee…)
  • Portable, autonomous electronic platforms
  • Precision navigation systems
  • Augmented reality
  • Multimedia
  • Contest Sponsors: STMicroelectronics, ST-Ericsson, among others


  • The contest is a promotion of the Autonomie project – an industry/research consortium researching technologies that assist people with sight impairments.

OpenWorld Design Contest with EvoPrimer for STM32 – [Link]





Search Site | Advertising | Contact Us
Elektrotekno.com | Free Schematics Search Engine | Electronic Kits