BLE Chip For Wearable IoT Designs Adds Voice-input


Recognizing the fastest-growing emerging Bluetooth Low Energy (BLE) market and importance of power consumption in BLE applications, STMicroelectronics has revealed a BLE wireless chip which, according to the firm, delivers efficient performance in addition to minimising power consumption to extend battery life from months to years.

BlueNRG-1 SoC serves BLE applications including wearables, connected home, energy-constrained smart sensors, retail beacons, keyless entry systems, smart remote controllers, asset trackers, automotive, and industrial and medical monitors.

According to ABI Research, “shipments of IoT products with BLE should increase 34% to 2021 (CAGR), reaching close to 1.4 billion units, aided by proliferation of Bluetooth-enabled tablets and smartphones, that provide a convenient user interface for interacting with Bluetooth Low Energy devices.”

The chip meets the key requirements of BLE devices such as extremely low power consumption in sleep and standby modes and strong radio performance to advertise availability and connect reliability. It has an ability to transition quickly between power-saving and active modes to save power, according to ST. It also includes a dedicated digital-microphone input that simplifies voice-enabled applications.


The BlueNRG-1 is built around the 32MHz 32-bit ARM Cortex-M0 and delivers ample performance per milliwatt. The chip includes 160 KB of on-chip Flash, provides application-code and data storage besides the possibility to upgrade the ST BLE firmware stack.

In addition, the device features a 105°C maximum operating temperature suitable for smart-lighting and automotive applications (such as passive-entry-passive-start or onboard-diagnostic devices). Support for the latest Bluetooth Low Energy version 4.2 specification ensures advanced privacy and security.

BlueNRG-1 is scheduled to enter volume production in July 2016. Pricing is $1.50 for BlueNRG-132 in 5×5 mm QFN-32 package, and $1.45 for BlueNRG-134 in 2.7×2.6 mm WLCSP-34 for space-constrained applications.

Automotive Wireless Charging Solution from ROHM

ST offers designers using BlueNRG-1 with a software development kit (SDK) with APIs, sensor drivers, sample applications and more. There is also a current-estimation tool to optimise power consumption.

For further details, view the full Press release.



Please enter your comment!
Please enter your name here

Are you human? *