S120 SoftDevice

Bluetooth Low Energy Central or Peripheral protocol stack

SoftDevice S120 is a Bluetooth 4.1 qualified protocol stack for the nRF51 Series. It is configurable at runtime as either Central or Peripheral and can support up to 8 concurrent links in Central/Observer roles or concurrent Peripheral/Broadcaster roles. It is a complete stack with GAP, GATT, ATT, SM, L2CAP, and Link Layer. Both GATT Server and Client are supported.

Key Features
Bluetooth 4.1
All roles
(Ce+Pe+Br+Ob)
8
concurrent links
GATT
client/server
Timeslot
API

SoftDevice

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Changelog:

2.1.0S120: Bluetooth 4.1

  • Fixes a SoftDevice assert when measuring connection RSSI.
  • Introduces a very small reduction in the size of the GATT Server Attribute Table

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