STM32 Discovery kit IoT node, multi-RF SDK for Smart Things, improved RF filter for IoT and more – 13 July 2017

Multi-protocol RF SDK for out-of-the-box Sensor-to-Cloud Smart Things

The new dual-radio Software Development Kit (STSW-BNRG-S2LP) unleashes the amazing capabilities of BlueNRG-1/-2 and S2-LP, in synergy, for a truly out-of-the-box Sensor-to-Cloud experience. It allows developers to create ultra-low-power always-connected Smart Things, featuring both BLE and LPWAN / SIGFOX wireless connectivity. The SDK relies on the ARM Cortex-M0 embedded in the programmable BlueNRG SoC along with the S2-LP Sub-1GHz transceiver to seamlessly connect to the cloud.

 

Connect directly to the cloud with our STM32 Discovery kit IoT node

The STM32L4 Discovery kit IoT node (B-L475E-IOT01A) combines direct access to cloud servers (Wi-Fi, NFC) and low-power multi-link communication (Sub-GHz, BLE) to help you create smart-connected low-power IoT nodes and optimize range and battery autonomy. Multi-way sensing is also included on-board for user interaction (proximity, motion, and audio sensors) as well as environmental awareness (pressure, humidity, and temperature sensors).

 

Improve RF sensitivity in IoT boards

Improve RF sensitivity and reduce RF link loss and end-user frustration with the ECMF4-2450A17M10. Featuring a deep attenuation of differential and common-mode noise at WLAN frequencies (2.4 and 5 GHz), combined with a robust +8kV contact discharge ESD protection, our latest common-mode filter is housed in a tiny µQFN-10L package of 3.51 mm² saving up to 30% of the PCB area compared to an equivalent discrete solution.

 

New family of 250 mA, tiny, ultra-low-noise LDOs

With an input voltage from 1.5 to 5.5 V and a typical dropout of 120 mV, the LDLN025 generates a precise and regulated output voltage. Its ultra-low noise architecture ensures less than 6.5 µVrms noise and high PSRR, perfect for precision ICs like ADCs, VCOs, or sensors, with a maximum current of 250 mA. Available in 4-bump flip-chip (0.63 x 0.63 mm) and 4-lead QFN (1 x 1 mm) packages, it’s ideal for space-constrained devices including smartphones, wearables, and wireless IoT devices.

 

Snuza Pico: Sensing Children in Distress with ST’s LIS3DH and BlueNRG-MS

Snuza Pico® is a smart wearable movement monitor for infants. This blog posts examines why Snuza selected ST’s MEMS, Bluetooth and Balun in their world’s first connected baby monitoring device.