STMicro's certified Bluetooth 5.0 next generation of Bluetooth low energy system-on-chip (SoC) ensures interoperability with the latest generation of smartphones and offers ultra-low current consumption with robust RF performance, increasing the battery life of applications. In addition to a large integrated memory and a scalable number of GPIOs, the latest evolution of the Bluetooth low energy stack adds state-of-the-art communication, security, and privacy along with an extended packet length for a faster data transfer.

The BlueNRG-2 is a very low power Bluetooth 5.0 certified, Bluetooth low energy single-mode SoC. It embeds an ultra-low-power 32-bit Arm® Cortex®-M0 core running up to 32 MHz to host Bluetooth low energy stack and user application code. The on-chip 256 Kbytes Flash memory simplifies system design by saving external memory components and offering full upgradability of both Bluetooth low energy stack and application code. The BlueNRG-2 comes with 24 Kbytes of ultra-low-leakage RAM with full-data retention and offers SPI, UART, and I²C peripherals, multifunction timers, watchdog, RTC, and DMA controllers. It also features a low-power 10-bit ADC for interfacing with analog sensors as well as monitoring the integrated battery level. A digital filter and the PDM input interface support seamless voice capturing from a digital MEMS microphone. The BlueNRG-2 offers excellent RF performance, robustness, and connection reliability. The integrated high-efficiency DC/DC converter enables ultra-low power figures with an enhanced sleep mode, extending battery life. Different packages with a scalable number of GPIOs (up to 26) are available, including a WLCSP package for size-constrained applications. The BlueNRG-2 comes with a full-featured eco-system of tools, an evaluation board, and SDKs. The Navigator GUI enables users to quickly run proposed examples and start developing new projects out-of-the-box.