SkatePOV

5 April 2010 Projects
SkatePOV @ night

SkatePOV brings POV to your skate board. It is a minified version of MiniPOV2 attachable to your skateboard. Draw texts while skating! The LEDs pulse to write the text. By moving the skateboard (aka skating) the blinking is converted into a matrix and the blinking becomes the text. This is the first project in a […]

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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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Seasonal Greetings

20 December 2009 Tinkering
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This is definitively the last post for this year. So I wish everybody Merry Christmas or whatever you want to celebrate and a pleasant & successful new year! Even I stopped tinkering and went on to hacking cookies. Have fun & take care!

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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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Decoupling LIS302DL – There I fixed it!

15 December 2009 Tinkering
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As you probably know, I really like I2C sensors and especially the LIS302DL. But adding this accelerometer to your circuit is not as straight forward as I thought. But in the end I got it quite right. It all started out with a 0.1µF ceramic capacitor. For good measure I put a ferrite bead in […]

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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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Driving Circuits from a CR2032 Lithium Coin Cell

29 August 2009 Tinkering
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Just another good example of ‘lesson learned’. I often use the very common CR2032 coin cell batteries to drive my circuits. Small, cheap, easy to get and there is a quite a range of good and cheap battery holders. But recently I have tested an complete over the top design which pushed the poor little […]

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Interactive Matter: The first year!

11 August 2009 Tinkering
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Unbelievable that this is just the first year of Interactive Matter. But still there happened a lot of things. Lets have a look on what Interactive Matter has managed to achieve.

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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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Interactive Matter goes Kit

14 July 2009 Shop
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The questions for kits grow stronger and stronger in the comments. Therefore I am happy and proud to announce that Interactive Matter starts selling kits. The first will be the Space Invaders Button. The first round of prototypes has been packaged and already shipped: Soon we will add order forms and how to descriptions for […]

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µTVBG – World Smallest TV-B-Gone clone

4 July 2009 Projects
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I really like TV-B-Gone by Mitch Altman. The idea to have an universal remote to switch off any TV set is just marvellous! But for some real sneaky operation I wanted a much smaller version which perfectly fits into my pocket. So how about a small experiment how small you can go (and still solder […]

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Doing business with makepcb.com

17 June 2009 Tinkering
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Trying a new board house is always an adventure. Of course I use BatchPCB for small scale prototyping. But for an upcoming project I needed some higher quantity of boards for a cheaper price. So some ‘real’ board house must be found. There are so many options, that I do not try to list all […]

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64 Pixels Roundup

20 May 2009 Tinkering
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As a effect of the Space Invaders Button I learned a lot about all those LED Matrix projects on the net. As a roundup I collected a short overview of all the different projects I found.

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SFH 3310 & SFH 5711 Light Sensors

18 May 2009 Sensors
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After I successfully shed some light its time to see some light. For this you normally use photo diodes, photo transistors or photo resistors. But there are two nice little detectors which I came across, special enough to post them here: The Osram SFH 3710 and SFH 5711. Both are photo diodes respectively transistors adapted […]

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