Electronics

Using some tiny mirrors and basic electronic components, you can create your own security system Read more..
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Wi-Fi Toys 15 Cool Wireless Projects for Home, Office, and Entertainment - Ebook

This ultra-cool volume invites readers to tap into your inner geek and build seventeen ultra-cool wireless devices including a solar powered access point, a wireless picture frame that dynamically changes its own photos, and even a wireless car-to-car audio and video system. This book provides readers with hands-on instruction and insider tips and tricks from those who are on the bleeding edge of wireless technology.

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In the past, it’s impossible to combine the medical and technology fields together. However, thanks to the advent technology, most of the impossible mission becoming possible, especially in this bizarre 21st century!

The concept, “Cell Phone as a Platform for Healthcare” had been worked out since few decades ago. However, due to the lack of technology, it has been postponed for a very long time.Read more..

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9 min. overview video demonstrating Surface Mount Soldering with inexpensive equipment. Includes soldering of a 603 resistor, PLCC, 44 pin QFP, 208 pin fine-pitch QFP, desoldering using hot air and ChipQuik®, and prototyping with SchmartBoards®.
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I'm assuming you've got your 5V supply tested and working. Next, we need to insert the ATmega168 into the breadboard and connect up power and ground.

ATmega8 (works the same with ATmega168) straddling the middle row of the breadboard

You will need to slightly bend in the legs of the DIP (dual inline package) to get the ATmega168 to straddle the breadboard center. Be careful! Do not bend the pins too far inward. The pins of the ATmega168 should insert into the inner two most rows on the breadboard. I find it best to to insert one side and then slightly push the IC sideways until the other side of pins can insert into the opposite row on the breadboard. Confusing, I know. Read more..

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Ubuntu 9.04 minimal development build for OMAP35xx

This page describes how to get a minimal Ubuntu 9.04 system up, using a SD card on an OMAP35x_EVM ARMv7 board.
Note that this environment is completely aimed at development, it has only the ubuntu-minimal and build-essential metapackages installed.

Partition the SD card

Partition a SD or SDHC card into two partitions, the first partition should have about 64M (less would suffice though) and should be vfat formatted.
Use the rest of the card for the second partition and format this as ext2.

Put root filesystem and kernel on the card

Mount both partitions of the SD card (if you are on an Ubuntu desktop system, just replug the card, the partitions should get mounted as /media/disk and /media/disk-1).
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