Category Archives: Coding

Software adventures

Having some fun with Scratch

Posted on 2024-04-25, Thursday by jaap

Enjoying supervising a group of kids at my son’s school with programming. The kids play around with Scratch and MicroBit and I help them when they get stuck and try to get the occasional bit of theory across, you know: … Continue reading →

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Creating a web based mapping application with flexx

Posted on 2017-04-04, Tuesday by jaap

For my private boat navigation software project, I was looking for an easy way to manipulate a map, in particular openseamap, from both client and server side. The idea being that the server side runs on a Raspberry Pi that … Continue reading →

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Sparkfun 9DOF on Raspberry Pi 2

Posted on 2015-08-24, Monday by jaap

A couple of months ago, I finally set out to get the Sparkfun 9DOF stick working (3D acceleration sensor, gyroscope and magnetic flux sensor/compass: 3 x 3 = 9). I got it from my father for my birthday a couple … Continue reading →

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Graphics LCD library for JOS

Posted on 2011-11-13, Sunday by jaap

Have been too busy to play around with my Arduino stuff lately, but my visit to Kesseltronics in Canada inspired me to spent an evening with the graphic LCD board I bought earlier and write some code for it to … Continue reading →

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Ramp up the voltage

Posted on 2011-09-24, Saturday by jaap

I’ve chosen to run the electric system on board “Wahine” at 36V rather than 24V. Mainly, so I can get sufficient revs. from the electric engine. In order to charge the batteries at this voltage, you need something like 41V. … Continue reading →

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