nRF52 Series
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nRF52 Series


Built around a 32-bit ARM® Cortex™-M4F CPU with 512kB + 64kB RAM, Nordic Semiconductor's nRF52832 multiprotocol SoC offers record breaking performance to the application developer. The nRF52832 incorporates powerful processing with floating point capability, power efficiency through a system of automated and adaptive power management features, a broad suite of analog and digital peripherals, and on-chip NFC™-A tag support.

In collaboration with Nordic Semiconductor, ANT Wireless provides two ANT stacks targeted exclusively for the nRF52 Series SoCs:

  • S212 ANT SoftDevice
  • S332 Concurrent ANT/Bluetooth® Low Energy (BLE) SoftDevice

See the SoftDevices tab below to access the evaluation protocol stacks provided by ANT Wireless. 

SoftDevices Manufacturer's Product Page

The nRF52832 supports programmable SoftDevice protocol stacks for easy access to new features and improvements. ANT Wireless makes ANT available for the nRF52832 with the S212 ANT SoftDevice and the S332 ANT/BLE SoftDevice. 

SoftDevice Configuration Benefits

  • Master Boot Record for over-the-air device firmware update
  • Memory isolation between application and protocol stack for robustness and security
  • Thread-safe supervisor-call based API
  • Asynchronous, event-driven behavior
  • No RTOS dependency; any RTOS can be used
  • No link-time dependencies
  • Standard ARM® Cortex™M4F project configuration for application development
  • Support for concurrent and non-concurrent multiprotocol operation

ANT Features with S212 and S332 SoftDevices

  • Simple to complex network topologies supported
  • Logical channels individually configurable for channel type, ID, and period, RF frequency, and network
  • Broadcast, acknowledged or burst data transfer
  • Device search, pairing, and proximity support
  • 8 byte data payload per message
  • Advanced ANT Features:
    • ​Configurable for up to 15 ANT channels
    • ​AES-128 data encryption option for data transfers on all ANT channels
    • Advanced Burst Transfer mode (up to 60 kbps)
    • Up to 8 public, managed, and/or private ANT network keys
    • Event Filtering and Selective Data Updates
    • Asynchronous Transmission
    • Fast Channel Initiation
    • Search Uplink

​Bluetooth Low Energy Features with S332 SoftDevice

  • Built with Nordic's S132 SoftDevice
  • Bluetooth 4.2 compliant low energy single-mode protocol stack suitable for Bluetooth Smart products
  • Concurrent central, observer, peripheral, and broadcaster roles with up to twenty concurrent connections along with one Observer and one Broadcaster
  • Configurable number of connections and connection properties
  • Configurable attribute table size
  • Custom UUID support
  • Link layer
  • LL Privacy
  • LE Data Packet Length Extension
  • L2CAP, ATT, and SM protocols
  • LE Secure Connections pairing model
  • GATT and GAP APIs
  • GATT Client and Server
  • Configurable ATT MTU

Hardware Features:

  • Single chip, highly flexible, 2.4GHz multi-protocol SoC
  • 2.4GHz transceiver
    • -96dBm sensitivity in Bluetooth® low energy mode
    • 1Mbps, 2Mbps supported data rates
    • TX Power -20 to +4dBm in 4dB steps
    • Single pin antenna interface
    • 5.5mA peak current in RX and TX (0dBm)
    • RSSI (1dB resolution)
  • ​ARM® Cortex™-M4 32-bit processor with FPU, 64MHz
    • 38μA/MHz running from flash memory
    • 30μA/MHz running from RAM
    • Data Watchpoint and Trace (DWT), Embedded Trace Macrocell (ETM), and Instrumentation Trace Macro cell (ITM)
    • Serial Wire Debug (SWD)
    • Trace port
  • ​Memory 512kB flash + 64kB RAM
  • Flexible Power Management
    • Supply voltage range 1.7V to 3.6V
    • Fully automatic LDO and DC/DC regulator system
    • Fast wake-up using 64 MHz internal oscillator
    • 400nA at 3V in OFF mode
    • 720nA at 3V in OFF mode with 32 kB RAM retention
    • 1.9μA at 3V in ON mode, 32.768 kHz crystal oscillator and Real Time Counter running with 32kB RAM retention
  • Rich I/O and Peripheral Set
    • Type 2 Near Field Communication (NFC-A) Tag with wakeup on field
    • 12-bit, 200ksps ADC - 8 configurable channels with programmable gain
    • 64 level comparator, 15 level low power comparator with wakeup
    • Temperature sensor
    • 32 General Purpose I/O Pins
    • 3 x 4 channel Pulse Width Modulator units with EasyDMA
    • Digital microphone interface (PDM)
    • 5x 32-bit timers with counter mode
    • Up to 3x SPI Master/Slave with EasyDMA
    • 2x I2C compatible 2-Wire Master/Slave
    • UART (CTS/RTS) with EasyDMA
    • Programmable Peripheral Interconnect (PPI)
    • Quadrature Decoder (QDEC)
    • AES HW encryption with EasyDMA
    • 3x Real Timer Counter (RTC)
  • Package variants
    • ​QFN48 package, 6 x 6mm
    • WLCSP package, 3.0 x 3.2mm

Ask questions and share information on use of ANT with the nRF52832 in the ANT Forum.

Ask questions and share information on use of the nRF52832 in the Nordic Developer Zone.

Current Items Description Stack Download Commercial License Soft Device Update Version
S212-SD-v6.1.1 (latest) ANT SoftDevice Click here Click here 6.1.1
S332-SD-v6.1.1 (latest) ANT / BLE SoftDevice for nRF52832 Click here Click here 6.1.1
S340-SD-v6.1.1 (latest) ANT / BLE 5 SoftDevice for nRF52840. Click here Click here 6.1.1
S212-SD-v5.0.0 ANT SoftDevice Click here Click here 5.0.0
S332-SD-v5.0.0 ANT / BLE SoftDevice Click here Click here 5.0.0
S212-SD-v4.0.5 ANT SoftDevice Click here Click here 4.0.5
S332-SD-v4.0.5 ANT / BLE SoftDevice Click here Click here 4.0.5

nRF52 Series SoftDevices from Nordic Semiconductor

Available here

For general information on licensing the ANT stacks for nRF52 Series see the FAQ (basic user account login required).



Previous Items Description Stack Download Soft Device Update Commercial License Version
S212-SD-v2.0.1 ANT SoftDevice Click here Click here 2.0.1
S332-SD-v2.0.1 ANT / BLE SoftDevice Click here Click here 2.0.1
S212-SD-v1.0.2 ANT only SoftDevice Click here Click here 1.0.2
S332-SD-v1.0.2 ANT / BLE SoftDevice Click here Click here 1.0.2
Current Items Description Version
S332 v2.0 SDS S332 SoftDevice Specification document 2.0
S212 v2.0 SDS S212 SoftDevice Specification document 2.0
S332 v1.0.2 SDS S332 SoftDevice Specification document 1.0
S212 v1.0.2 SDS S212 SoftDevice Specification document 1.0
Compatibility Information ANT Stack Compatibility Information - nRF52 Series 1.8
TN ANT Technical Note - Migrating an ANT nRF51 Project to nRF52 1.0
Other Resources    
nRF52832 Documentation nRF52832 product specification, reference designs, and other technical documents  
ANT Software tools ANTWare II, ObservANT, and others  
ANT Documentation ANT Message Protocol and Usage, application notes, ANT+ Device Profiles, and others  


1. Initial Setup

2. Channel Data

3. Battery Information

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