Monthly Archives: July 2012

Programmable LEDs (Basic)

Having setup an LED to be permanently lit via the 3.3V GPIO pin, the next step is to get the LED to light on demand, via a GPIO control pin. There are several pins to choose from, I used pin … Continue reading

Posted in Circuits, GPIO, LEDs, Raspberry Pi | Leave a comment

Park Tools Cyclone Chain Cleaner Review

I’ve recently picked up the Park Tools CG-2 Chain Gang Chain Cleaner Set from Wiggle after it was heavily discounted. I’d always been a little dubious about how good this tool could be and have previously opted for a manual cleaning process … Continue reading

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Posted in Cycle Maintenance, Reviews | Leave a comment

Let there be light! (Update)

Following on from the previous post I have a correction to make. The 270 ohm resistors that shipped with the LEDs aren’t overkill for the 3.3V Raspberry Pi GPIO circuit. There must have been a mistake in the way I built the … Continue reading

Posted in Circuits, Hardware, Raspberry Pi, Resistors | Leave a comment

Let there be light!

In the beginning… As a budding electronic engineer, where should you start? This might be a question with many correct answers, but I decided to start with a simple single LED circuit. I bought the following equipment to get me … Continue reading

Posted in Circuits, Hardware, Raspberry Pi | 1 Comment

A journey into hardware

Hello, and welcome! Now, this might be the third or fourth attempt at starting a blog, but I’m convinced this time it’s going to be different – I actually have something to write about! A few weeks ago my Raspberry … Continue reading

Posted in Hardware, Raspberry Pi | Leave a comment