It’s me again – Daniel MakerBear. Last weekend from May 27 to May 29, 2016 the MakerFaire Hannover 2016 took place. And of course I accompanied Daniel LeMath and the Arduino Group Hannover as I did last year in Berlin. And again there was a bunch of interesting things to see.
Meanwhile I switched from RRDtool to gnuplot for the graphics. I didn’t understand the averaging in RRDtool completely, and I’m more comfortable with gnuplot.
The first step of my sensor network is completed. A BMP280 barometer sensor, a Raspberry Pi with an MQTT broker, a round robin database, an apache webserver and some Python and shell magic.
Finally I programmed some patterns for the NeoPixel rings.
Unfortunately the colours are not as bright as in real life.
The description of the patterns is below:
Now I have a small house connected to the world. Normally its a house to be illuminated by a tee light. Now it is equipped with an 8mm WS2812 LED. The LED is controlled by an Arduino (sketch), which is connected with a USB cable to a Raspberry Pi. On the Raspberry runs a little Python program, which gets in regular intervals the actual colour from cheerlights. The world can change the colour via a tweet, e.g. “#cheerlights green”.
The weekend from Nov 6 to Nov 8 the fifth Inventor’s Meeting took place in Ulmen (Germany). Of course Daniel MakerBear came along with me and asked me to write a guest post in this blog.
As an eye-catcher for future MakerFaires and other events I tried to create the logo of the Arduino Group Hannover in 3D. I have no 3D printer at home, and the printers I know are much too small.
Last weekend the first MakerFaire took place in Berlin. The Arduino group Hannover participated to present their projects. For the first time Daniel the MakerBear accompanied us. Here is the story of his adventures as a guest post.
Now – that I get a little comfortable with github – I will put some of my Arduino sketches onto my github account.
Last year a NeoPixel ring with 24 LEDs blinked in our Christmas tree. I presented it on the last MakerFaire Hannover, but unfortunately it was too close to the Tesla coil on our booth, and it stopped working. To be prepared for this year’s Christmas I ordered new rings from Watterott – not one, but three: 16, 24, and 32 LEDs.