S340 SoftDevice

Bluetooth 5 and ANT protocol stack

SoftDevice S340 is a combined Bluetooth 5 and ANT™ protocol stack for the nRF52840 SoC, supporting concurrent operation of the two.

It is a Bluetooth 5 qualified protocol stack that offers up to 20 concurrent links in all roles. It supports all Bluetooth 5 features: 2 Mbps, Long Range, Advertising Extensions and channel selection algorithm #2 (CSA #2). The number of connections and bandwidth per connection is configurable, offering memory and performance optimization.

It is a complete Bluetooth LE 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 Length Extension (DLE), configurable ATT MTU, L2CAP connection-oriented channels and LE Secure Connections.

It supports all ANT features and offers a variety of network topologies, including peer-to-peer, star and tree. Up to 15 individual channels are available, with broadcast, acknowledged, or burst transfer communication.

The S340 SoftDevice is distributed and Bluetooth qualified by Garmin Canada Inc.
Download available here.

Key Features
Bluetooth LE/ANT
Bluetooth 5
2 Mbps + Long Range
All roles
20 concurrent
ANT channels
Network topologies

nRF52 SoftDevices

Bluetooth LE & ANT

Relevant SDKs

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The Bluetooth LE and ANT software development kit

The nRF5 SDK is a high quality, thoroughly tested software development kit to accelerate your software development efforts for the nRF52 and nRF51 Series SoCs. It contains hundreds of useful firmware modules and examples to assist in building your application.

nRF52 Series SoCs

Compatible with SoftDevice S340

nRF52840 SoC

Bluetooth 5.4 SoC supporting Bluetooth Low Energy, Bluetooth mesh, NFC, Thread and Zigbee

64 MHz Arm Cortex-M4 with FPU
1 MB Flash, 256 KB RAM
2 Mbps, 1 Mbps, Long Range
Bluetooth Low Energy
Bluetooth mesh
Thread, Zigbee
+8 dBm TX Power
128-bit AES CCM, Arm CryptoCell-310
12-bit ADC
USB 2.0

Related Applications

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