Apache NimBLE is an open-source Bluetooth 5.0 stack (both Host & Controller) that completely replaces the proprietary SoftDevice on Nordic chipsets. It is part of Apache Mynewt project.


  • Support for 251 byte packet size
  • Support for all 4 roles concurrently - Broadcaster, Observer, Peripheral and Central
  • Support for up to 32 simultaneous connections.
  • Legacy and SC (secure connections) SMP support (pairing and bonding).
  • Advertising Extensions.
  • Coded (aka Long Range) and 2M PHYs.
  • Bluetooth Mesh.