Adafruit GEMMA M0 Miniature Wearable ATSAMD21 Dev Board fit0355 GPS data loggers

GPS data loggers

E-Textiles

and communicate with each other or smartphone with the P2P(peer-to-peer) communication

especially if you're dealing with an unreliable power supply

Its an Adafruit Feather 32u4 with a BTLE module

Adafruit GEMMA M0 Miniature Wearable ATSAMD21 Dev Board fit0355 GPS data loggersThe Adafruit Gemma M0 is a super small microcontroller board, with just enough built in to create many simple projects. It may look small and cute: round, about the size of a quarter, with friendly alligator clip sew pads. But do not be fooled! The Gemma M0 is incredibly powerful! We've taken the same form factor we used for the original ATtiny85 based Gemma and gave it an upgrade. The Gemma M0 has swapped out the lightweight ATtiny85 for a