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Links for 2009-04-08

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Tender Lovemaking » Blog Archive » Nokogiri Is Released

“With the help of super awesome ruby hacker Mike Dalessio, I wrote an XML/HTML parsing library for ruby called Nokogiri. What is so great about Nokogiri? Well, for one it is really easy to parse HTML or XML:”

(tags: nokogiri ruby rails code development hpricot xml parser parsing)

N R Bardwell Ltd – About us

The family business of N.R. Bardwell was established in 1944 selling electronic components. Today it is still very much a family affair with five family members involved.

We have widened the stock to include many other electrical items. However not all our stock is included on the web site. Please get in touch if you do not see what you require.

Callers are welcome at our shop at 288 Abbeydale Road, Sheffield S7 1FL. Hours 9.30 am- 5.00pm Monday – Saturday inclusive.

(tags: components suppliers sheffield electronics)

Driving an LED with or without a resistor

In this post I will try to show, why it’s a good idea to use a current limiting resistor for an LED. And when it’s save to drive the LED without any resistor.

If you read about LEDs, you will notice that everyone tells you, that you need a current limiting resistor. But mostly they do not tell you why.

(tags: electronics led leds component components design)

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