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SmartBond™ DA14531 – The world’s smallest and lowest power Bluetooth 5.1 System-on-Chip

The DA14531 aka SmartBond TINY™ is the Bluetooth® low energy solution to power the next 1 billion IoT devices

SmartBond TINY™, the world’s smallest and lowest power Bluetooth 5.1 System-on-Chip, brings down the cost of adding Bluetooth low energy in any system to $0.50 in high volumes. This awesome combination takes mobile connectivity to places previously out of reach, triggering a wave of a billion IoT devices, all with SmartBond TINY™ at the heart.

The low system cost is achieved through the high level of integration in SmartBond TINY™: a complete Bluetooth low energy system can be achieved with the addition of 6 tiny external passives, a crystal and power source. And to lower the barrier of entry, SmartBond TINY™ will also be available in an easy-to-use tiny module incorporating all the needed components, making the addition of Bluetooth low energy to any application a simple drop-in.

Record low hibernation and active power consumption ensure long operating and shelf life with even the tiniest, disposable batteries. Based on a powerful 32-bit arm Cortex M0+ with integrated memories and a complete set of analog and digital peripherals, SmartBondTINY™ is extremely power efficient, delivering a record score of 18300 on the latest EEMBC benchmark for IoT connectivity, IoTMarkTM.

Available in a tiny 2.0 x 1.7 mm package, the DA14531 is half the size of its predecessor, or any offering from other leading manufacturers. And it is complemented by a flexible SDK supporting major compilers such as Keil and GCC out of the box.


  • Future proof, compliant with Bluetooth 5.1 (core)
  • Optimized for disposable products in connected health, connected consumer
    • Designed to work with disposable, even printed batteries
    • Works well with smallest capacity batteries, <<30mAh
    • Supports multiple years of shelf life
    • Inrush current can be limited for disposable batteries with high internal resistance
    • Package design allows for low cost manufacturing with smallest possible footprint
  • Only requiring a single 32MHz crystal
  • In bypass mode no DC-DC inductor required
  • No boost converter required when working with 1.5V batteries
  • Production Line Tool for accelerated production ramp up, resulting in faster time to market and shortest production test time per device



  • Connected consumer: Beacons, Smart labels, Remote controls, Proximity tags, Connected watches, Stylus pens, Mouse, Toys, Low power sensors, Bluetooth LE add on “BLE pipe” to existing applications
  • Connected health: Connected injectors, Inhalers, Glucose monitors, Smart patches, Blood pressure meters, Thermometers
  • Automotive: Tire Pressure Monitoring Systems and low power wireless sensors



DA14531 SmartBond Module

We make it simple! Configurable Hardware & BLE with simple AT Commands, no software dev..

AT Command control of

  • Hardware interfaces
  • BLE link control
  • Local and BLE Remote controlled device

AT commands examples

  • Sleep mode management
  • Management of bonding database of connected devices
  • BLE Connection management (interval, data rate etc.)
  • Binary mode for data transfer
  • Central and peripheral support
  • Software Update Over The Air Support
  • Security management (secure connections)
  • Configuration and control SPI and UART interfaces
  • Mobile APP support to control devices from smartphone

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