Return-to-Zero is a series of electrical engineering comics that will be a hit among the electrical engineering community. eeweb.com writes:
We bring to light the “Engineers World” with lab humor, exploding circuits and of course making a sport out of solving the trickiest of engineering problems.
Return-to-Zero: electrical engineering comic strip – [Link]
Many AVR microcontrollers are capable of doing Analogue to Digital Conversion. The ATmega168 has 6 ports (8 ports on the SMD packages) that can be used for analogue input. This tutorial shows you how.
Analogue to Digital Conversion on an ATmega168 - [Link]
This guide will take you through the steps to build an NES playing robot.
This is an arduino based bot which can play back tool assisted speedruns on the NES. If you’ve ever seen the “Super Mario Bros 3 beat in 11 minutes” video, think that, but being played back on the actual console. This bot can only handle the original Super Mario Bros currently, but it can beat it completely.
NESBot: Arduino Powered Robot beating Super Mario Bros for the NES – [Link]
All AVR microcontrollers have internal watchdog timer that can be successfully used in your projects. Atmega328 and other modern AVR microcontrollers have so called Enhanced Watchdog Timer (WDT). It has few very useful features including: separate 128kHz clock source, ability to reset microcontroller and generate interrupt.
Using watchdog timer in your projects - [Link]
This is big news, for everyone who does open source hardware we finally have something we can put on our pages, stamp on our boards and say THIS is open source hardware! Please visit this page, read the definition and endorse! Ayah writes – [via]
Finally D-day is here! We are pleased to announce the 1.0 of the Open Source Hardware Definition.
The definition has undergone a few rounds of feedback, and feedback collection has been done (online, forums, open hardware summit, stakeholder’s websites, email etc) and posted here for review. Gradually, feedback has been converging more and more, and support for the definition growing.
We would like to thank everyone who took an active part in drafting the definition, and discussing it.
Open Hardware Definition 1.0 RELEASED! – [Link]
Linear Technology has launched the LT3799, an isolated flyback LED controller with active power factor correction (PFC) specifically designed for driving LEDs from a mains supply voltage in the range of 90 to 265 VAC. The LT3799 is optimised for LED applications with power levels from 4 to 100 watts and is compatible with standard triac dimmers. [via]
Offline LED controller features active PFC – [Link]
Asim from a group called TinkerAct! came by the Hack Factory a couple of weeks ago with a bag of Arduino clones they had created. Called the Arduino Stripper, it’s super tiny (1.6″ X 2″) and inexpensive ($20). [via]
I love using the little Arduino Pro Mini from Sparkfun. These little boards are perfect for space constrained and low voltage applications. I have built a number of projects using it. My only problem using it was that I always had to solder components/sensors directly on to it which is a) ugly and b) prone to short-circuiting. To solve this problem, I started building bare minimal Arduinos using perf/strip boards which is almost perfect space wise, but becomes a really laborious work (2-3 hours to get it all right) Sometimes, I just need an Arduino for a quick idea I have in my head and neither of the above two options quite cut it.
Arduino Stripper, a Perfboard ‘Duino Clone – [Link]