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Open Ocean Buddy Locator

Companion “ocean buddies” communicate with each other so you can always find your buddy on the open ocean.

Via bbtinkerer on Hackster.io:

Need to find buddy that went diving, fishing, or kayaking with out in the open ocean. We should stick with each other at all times, but sometimes we get separated. Trying to find your far off buddy when you are low in the water is a tad bit difficult.

The a light on the NeoPixel ring turns red to show where north is. A blue light points to the direction of where the other device is (purple if north and direction of buddy is the same). The OLED screen displays GPS connectivity, battery level, distance and bearing to the other device. Although there is a LiPo protection circuit (cut off is ~2.4V), you should never let the battery get lower than 3.3V. The protection circuit is just to make sure nothing catastrophic happens when battery goes too low.

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