PineTime Hypnos
This is an addition  to the myriad of PineTime efforts: a Zephyr-based firmware focused on low power consumption and 100 % Free Software adherence.

It does not have as many features as some of the other projects but we hope to get there one day. Here is were we stand at the time of writing:
  • 100 % Free Software
  • Low power consumption: 1.38 mA in idle mode (1.28 mA with the heart rate sensor disconnected), which gives a battery life of more than five days.
  • Battery status: get state of charge and whether it's charging
  • Clock: accurately increment current time
  • Button: press to start time synchronization with Bluetooth-connected device
  • Touch sensor: tap to light up the display
  • Graphics: show background image, time, date, battery and Bluetooth status using LittlevGL
  • Optional debug output via JLink RTT

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