Category Archives: Arduino

Control your Arduino with Scratch over Bluetooth

Yes, really. Scratch is this wonderful MIT visual programming toolbox that you can get for free in many different languages. Its an excellent starting point to teach children how to program. But you can go even further: Some weird spanic … Continue reading

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Waking up an Arduino with Input from a Sensor

Currently i am investigating ways to wakeup an Arduino out of deep sleep mode with an IRQ Event. If you think of low power standalone measurement applications, this can be very interesting, because the board can sleep with very low … Continue reading

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Building a cellular tracker: Part 8 – the Case

As described earlier my cellular tracker did not only have a couple of electrical and software challenges – running autonomously in the wild also would require a safe housing for it, something that can handle rain, high and low temperatures, … Continue reading

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Finding Europe with Lights – a pan-european Internet of Things installation

One of the reasons why i wanted to have this cellular tracker was a proposal i made to the founders of re:publica – the biggest web- and blogger conference in Berlin, that takes place on May 5th to 7th this … Continue reading

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Building a cellular tracker: Part 7 – Please welcome ArduFona

If you followed the previous posts on this matter, it’s not a surprise that i was thinking of a custom board sooner than later. So here it is – Ardufona: It is a low-power Arduino which runs straight from the … Continue reading

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Building a cellular tracker: Part 9 – Solar Power

One of the more exciting tasks while building up a cellular tracker is the Solar-Power part. Below i will describe my first results – this article will be updated later on when i am running some more tests and gathered … Continue reading

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Building a cellular tracker: Part3a – Circumventing unreliable Watchdog with external 555 timer

In my current endeavor to build a cellular tracker that can run autonomously for months i stumpled upon a strange problem during outdoor tests which could only be resolved the hard way… Initially i intended to use the built in … Continue reading

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