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S132 SoftDevice

High-performance Bluetooth Low Energy protocol stack

SoftDevice S132 is a high-performance Bluetooth® Low Energy protocol stack for the nRF52810 and nRF52832 System-on-Chips (SoCs). It supports up to 20 concurrent links in all roles (Broadcaster, Central, Observer, Peripheral). It is Bluetooth 5.1 qualified and supports the following Bluetooth features: high-throughput 2 Mbps, Advertising Extensions and channel selection algorithm #2 (CSA #2). The number of connections and bandwidth per connection are configurable, offering memory and performance optimization.

It is a complete stack with GAP, GATT, ATT, SM, L2CAP, and Link Layer. Both GATT Server and Client are supported. The broad feature set also includes Privacy 1.2, LE Data Packet Length Extension, configurable ATT MTU, L2CAP connection-oriented channels and LE Secure Connections.

Key features

Bluetooth 5.1 qualified

High-throughput 2 Mbps

Advertising Extensions

CSA #2

LE Secure Connections

Privacy 1.2

Configurable ATT Table

Configurable ATT MTU

Custom UUID

LE Data Packet Length Extension

L2CAP connection-oriented channels

Concurrent multiprotocol support


Select version to download


7.3.0SoftDevice S132

  • A new option named BLE_GAP_SLAVE_LATENCY_WAIT_FOR_ACK and few bug fixes.
  • See release notes inside download for more information

7.2.0SoftDevice S132

  • Updated release notes, see release notes inside download for more information
  • 128-bit UUIDs can be discovered more efficiently by enabling the BLE_GATTC_OPT_UUID_DISC option

7.0.1SoftDevice S132

  • First Bluetooth 5.1 qualified release
  • Added API to configure the inclusion of the CAR  and PPCP characteristics
  • Added API to trigger a task when the SoftDevice is about to start a connection event

6.1.1SoftDevice S132

  • Minor bugfix release

6.1.0SoftDevice S132

  • Qualified and supported LE Advertising Extensions features:
    • Long advertising packets
    • Chained advertising packets
    • Advertising and connection establishment on 2 Mbps and 1 Mbps
  • API to get the SoftDevice variant, flash usage, reserved PPIs, and reserved interrupt priorities
  • Fixed an issue with the S132 6.0.0 workaround for Errata 201 where the HFXO would sometimes not be released properly after RC calibration

6.0.0SoftDevice S132

  • LE Extended Advertising (Limited support)
  • Quality of Service and channel monitoring
  • Updated advertising and scanning APIs

5.1.0SoftDevice S132

  • The S132 v5.1.0 is API compatible with the S132 v5.0.0
  • The SoftDevice RAM usage is reduced compared to S132 v5.0.0
  • Bug fixes for link deadlocks and other issues
  • See the release notes for more information

5.0.0SoftDevice S132

  • Channel Selection algorithm #2
  • Minor changes and bug fixes
  • Bluetooth 5.0 qualified
  • See the release notes for more information

4.0.5SoftDevice S132

  • Production version of the S132 4.0.5
  • Bugfixes for link deadlock and other issues.
  • See the release notes for more information.

4.0.4SoftDevice S132

  • Production version of the S132 4.0.4
  • The SoftDevice slave role now accepts overlapping peer-initiated Link Layer control procedures
  • Bugfixes and minor changes
  • See the release notes for more information

3.1.0SoftDevice S132

  • Minor features and bugfixes
  • See the release notes for more information.

2.0.1SoftDevice S132

  • Minor stability upgrade. See release notes for more information

1.0.0-3.alphaSoftDevice S132

First release of the S132 SoftDevice.
The S132 is a Bluetooth Smart SoftDevice for Nordic Semiconductor's nRF52 Series SoC.
The feature set is based upon the S130 SoftDevice for the nRF51 Series.

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