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Pixeltable Reloaded

You might already know my Pixel-Table from a previous blog post (link). Back then it was powered by a Raspberry PI which had the hazards of managing a full OS and struggling with always-corrupted filesystems after power outages or just after some time when the SD card memory gets broken as of too many write-cycles.

So I started to move the hardware towards Arduino (to control the LED Stripe) and an ESP8266 to offer wifi communication. The two microcontrollers communicate via the serial interface.

Basic outline:
Webapp -> ((Wifi)) -> ESP8266 -> (Serial Interface) -> Arduino -> LED Stripe

Finally I also managed to build a grid for the LEDs so they appear far more pixel-shaped.

Ingredients:

  • Pixeltable Hardware as of previous post
  • Arduino Nano
  • ESP8266
  • DIY Webapp to send commands to ESP8266
  • Fun!

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