Arduino

Twitballoon 2

20 May 2011 Internet of Things
Twtiballoon 2

It was time again to talk at the Good School ‘Camp Digital’ about the Internet of Things. Instead of choosing a real world example I choose to revive the good old ‘Twitballon‘ and create a new and improved version. Twitballoon is a simple Arduino installation, which raises a balloon according to the activity of a [...]

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Blinken Button as a SPI Display

25 January 2011 Tinkering
Blinken Button with SPI breakout

There is nothing better than happy and even creative customers! At 27C3 Johannes and Gabe were one of the first customers for the Blinken Button Kit. After some minor issues they managed to assemble their kit. But that was positively not enough for them.  They wanted to use the Blinken Button as SPI slave, so [...]

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Arduino JSON Library

13 November 2010
JSON structure

What is JSON Exchanging data with other computers can be a daunting task with Arduino. No matter if you just want to pass some information to Processing, to a Web Service or something else – You always have to encode the data and decode the answer. There always have been solutions like XML for structured [...]

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Arduino HTTP Client Library

7 November 2010
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About HTTPClient HTTPClient is a Arduino Library to easily post normal HTTP Requests using the Arduino Ethernet Shield (a WiFly Version is on the way). Instead of manually implementing the HTTP protocol for each and every web page you want to read from or post to you can simply use the HTTP Client library. HTTPClient [...]

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Twitballoon – a Twitter Trend Visualizer

13 September 2010 Internet of Things
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Interactive Matter proudly presents the first joint project with Tinkerlog (the Space Invaders Button does not count, it was me doing a knock-off): The Twitballon. The nice people of Good School approached us, asking for a simple showcase what tinkering is all about. Nothing less. So Alex of Tinkerlog and Interactive Matter came up with [...]

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aJson – Handle JSON with Arduino

14 August 2010 Internet of Things
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Update: There has bee a major API change in Version 1.0 refer to the dedicated aJson page. Exchanging data with other computers can be a daunting task with Arduino. No matter if you just want to pass some information to Processing, to a Web Service or something else – You always have to encode the [...]

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Palo Altonale – Learn Tinkering at the Good School

27 July 2010 Tinkering
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A short German sumary, English version after the click: Auf zur Palo Altonale! Zusammen mit Tinkerlog, Palo Altona und Interactive Matter bietet die Good School einen Kurs zu Physical Computing & Tinkering in Hamburg an. Ziel des Workshop ist es Kreativen in 2 Tagen die Umsetzung von interaktiven Physical-Computing-Projekten auf Basis von Arduino zu vermitteln.Wer [...]

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BMP085 Barometric Pressure Sensor Breakout Boards arrived!

17 February 2010 Shop
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You may know that I played around a bit with the BMP085 barometric pressure sensor. Now I am proud to announce that the BMP085 barometric pressure sensor is available as breakout board in the Interactive Matter Shop. The BMP085 Breakout Board is a limited offer. I just got some at hand and supplies last as [...]

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Blinken Button – The LED Matrix Button Kit

7 February 2010 Shop
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Interactive Matter proudly present the first Interactive Matter SMT Kit The Blinken Button! The Blinken Button is a kit for a 8×8 LED Matrix button (the jacket one). It is based on the Space Invaders Button you may already know. The original Blinken Button Kit has been discontinued – check the Blinken Button for Beginners [...]

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Palo Altona – Hamburg Tinker Drinkup

14 January 2010 Tinkering
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Die deutsche Version gibt es nach dem Klick (und dann weiter unten). This time it is all non-technical (technically not – but that starts to get complicated). To further encourage tinkering in Hamburg, Alex and I have established a regularly tinker drinkup every Thursday (nearly) at Saal II. Currently it is a very cosy drinkup, [...]

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Filtering Sensor Data with a Kalman Filter

18 December 2009 Tinkering
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Some days ago I wrote about noise with a LIS302DL accelerometer. There is obviously something wrong with my hardware. But before I get a new version out I need to implement some software filtering. After some unsuccessful results with low pass filters I choose the Kalman Filter. The Kalman Filter involves an awful lot of [...]

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Arduino & Barometric Pressure Sensor BMP085

5 December 2009 Sensors
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In lack of any new projects (which are currently all in an very intermediate state) Interactive Matter presents yet another ‘how to connect a cool I2C sensor to Arduino’ post. This time it is all about pressure. The BMP085 pressure sensor combines a absolute barometric pressure sensor (aka barometer) with an temperature sensor. It is [...]

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Arduino & AD7746

18 July 2009 Sensors
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In my ongoing series about cool sensors Interactive Matter presents the AD7746 capacity sensor: What is a capacity sensor good for? You can of course make a device to identify small capacitance (up to 4pF) but that’s boring. Much more interesting is how it reacts to touching. Read on how to connect it to the [...]

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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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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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