WAVEbuoy using Arduino


The WAVEbuoy is a arduino lamp connected to the internet that displays the current wave height of any of the National Data Buoy Centre’s wave buoys.

This lamp is currently connected to the Sevenstones Lightship buoy that gives an indication of swell approaching Cornwall in the UK. The lamp can also be connected to any surfing location covered by magicseaweed.com


RED – High surf alert

GREEN – Medium swell

BLUE – Low swell

Parts needed:

  • Arduino UNO & Ethernet shield
  • Light bulb like this one Link
  • 3 Colour RGB SMD LED Module Link
  • Breadboard
  • Jumper wires

The case….its up to you how you encase it. Im a carpenter by trade and i had the ability to use some scrap pieces of oak. You could house it in all sorts of ready made boxes or lamps. The white dome on top is a lightbulb that i have cut in half.

WAVEbuoy schematic

Step 1: Build the circuit

Its a very simple circuit using 2 RGB modules and 3 resistors. Just follow the diagrams. If you need the fritzing file let me know.


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