Low Voltage RGB LED

9 May 2009 Tinkering
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Most of my parts want a 3.3V voltage supply. Most of my projects relay on a single coin cell battery at 3V. But driving an RGB LED from 3V is no fun at all. Lets take for example a nice strong RGB LED like the Osram LRTB G6TG – the green channel runs at 3.2V, […]

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Space Invaders Button

13 April 2009 Projects
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The reason I started all this microcontroller stuff was that I wanted to create an animated button displaying space invaders characters. Preferably the same size as an normal button (the ones you put on your jacket, not your panel). Now here it is: If you do not see the electronics for this small display read […]

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My couch programmer

11 April 2009 Tinkering
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Some days ago I searched for an small USB-based AVR programmer. After some research I stumbled over an new old friend. The AvrUsb500 SMD from tuxgraphics.org: To make it short: It is a bit pricey but exactly what I was looking for. But read the full review after the click.

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Arduino & LIS302DL

13 February 2009 Sensors
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Ages ago I bought an LIS302DL from Sparkfun. One of the old (little bit) messed up ones, but still 3 axis accelerometer with I2C output. No external parts. No pain. Fine! Before I go in any further investigation. I need to get it up & running with my arduino (actually an boarduino – but who […]

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Last year in electronics

4 January 2009 Tinkering
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One of the best way to see what I achieved last year is to have a look at my electronics trash can: Somehow nice and gives a good overview (a lot of through the hole stuff, some audio stuff, some more or less successful projects, some SMT efforts). Lets see what I throw away this […]

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23 December 2008 Projects
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Playing around with gravity: A basic piece exploring interaction with gravity. It is (again) half a ping pong ball. On the rim there is a red dot, which always stays up. You can turn it as you want – the red dot will go up again. Video after the click.

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How was your day, darling?

1 October 2008 Projects
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After some previous testings I did finish the final Version of How was you day, darling? – or shorter “hwydd”: It is a small object (actually half a ping pong ball), interacting with its owner and environment (and being pretty boring without interaction). The object permanently aggregates light samples (i.e. it measures the every second […]

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How was your day: The first prototype

25 August 2008 Projects
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After the first idea was born a project name and prototype was created: The project name “How was your day, darling?” or shortly “hwydd” refers to the interaction of the device. After you come home you take it in your hand and the device tells you how its day has been. A neat little reactive […]

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Tinkering with ADJD-S371-Q999

17 August 2008 Sensors
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The initial idea of “How was your day, darling” was to record the colors for a day. You know a morning is golden, evening is reddish, thunderstorm is greenish and so on. Measuring this with a simple RGB LED is a brave approach – but hard and cumbersome. So I ordered an ADJD-S371-Q999 color sensor […]

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How was your day: The beginning

11 August 2008 Projects
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It all started with a simple Pummer: A Pummer is a BEAM bot, which collects light during the day and transmits it as light pulses in the night. A Pummer is a nice ornament but lacks a bit of intelligence and interactivity.

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