Are you extremely stylish? But afraid to get lost in the forest while picking mushrooms? Well, this is exactly what you need! If to be more serious, this is small project to get more familiar with electronics: arduino, sensors, actuators and coding. I decided to fabricate bracelet witch’s strength of light depends on compass position. More north it is directed – brighter it shines. The main component for this application is tilt compensated compass module CMPS10. Also I use ‘arduino fio’ (3.3V), which is smaller than classical ‘arduino uno’ and adapted for lithium lon battery. It can be charged using usb cable. To illuminate bracelet panel  I got 3 high luminosity, white diffused leds’. Below you can see photos of creative process:

  • I started from super simple step. Circuit scheme of lights and it’s test with arduino uno.
  • Then I’ve cut few prototypes to test how different materials diffuse light. Finally Alex’s advice was to stay with crystal acrylic.
  • Second version was adapted to insert led’s inside and engraved north sign has nice luminous effect.
  • and challenge which is still waiting is to put everything together and make it work..