September 2

LoL shield: first own sketch

Next in LoL Shield history: a sort of “growth simulation”:


  1. Place a particle (say: light a LED) at a random place on the shield.
  2. start a new particle at (0, 0).
  3. move this particle randomly; north, south, east or west.
  4. if the particle hits a placed one, fix it at its last free place.
  5. repeat from 2. until (0, 0) is occupied.
  6. then blink the result, clear the screen and start at 1.

If the movement crosses a border then move to the other side. Mathematically spoken: we are on a torus.



First a short video

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September 2

LoL shield assembly

For a long time I’m addicted to blinking LEDs, so it was only natural to buy a LoL Shield by Jimmie P. Rogers. I ordered it at Watterott and – as usual – they delivered very quickly. With trembling hands I unpacked the parts – and decided to wait until tremor disappeared. After reading some descriptions of the assembly and watching this recommendable video from Super Awesome Sylvia. I started to solder the 126 LEDs; a good exercise.

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August 31

Redfly WiFi Shield

Today (OK – last year – this a copy from my old blog) arrived the RedFly shield from Watterott. Here are some images of the soldering:




The main difficulties of the start were:

  • Finding the MAC address. OK – the sketch WLANScan.ino gave the information.
  • Finding the admin password of the router.
  • Typing the correct password.
  • Allowing the MAC address to join the net (lost the documentation).

But finally the WebServer.ino sketch worked:



(Repost from my old blog, 2012-04-27)