STMicroelectronics STEVAL-ASTRA1B

Overview

STEVAL-ASTRA1B from STMicroelectronics is an ultra-low-power multiconnectivity asset tracking development kit integrating dual wireless SoCs (STM32WB5MMG for Bluetooth 5.3 and STM32WL55JC for LoRa/GFSK), Teseo-LIV3F GNSS, ST25DV64K NFC, STSAFE-A110 secure element, and six environmental/motion sensors (STTS22H, LPS22HH, HTS221, LIS2DTW12, LSM6DSO32X) - designed for livestock monitoring, fleet management, and logistics prototyping.

For engineers reviewing the STEVAL-ASTRA1B datasheet, STEVAL-ASTRA1B pinout, STEVAL-ASTRA1B application, or STEVAL-ASTRA1B equivalent, this kit delivers validated firmware (FP-ATR-ASTRA1), cloud dashboard (DSH-ASSETRACKING), and mobile app (STAssetTracking) to accelerate end-to-end asset tracking solution development with battery-operated, plastic-cased hardware and SMA/NFC antennas.

Technical Context

The platform implements a dual-SoC architecture: STM32WB5MMG handles BLE 5.3 connectivity and application processing via Arm Cortex-M4/M0+ cores, while STM32WL55JC manages sub-GHz LoRa and GFSK communication with integrated RF front-end control (FE_CTRL1–3 pins). Both SoCs share coordinated power management using ST1PS02 (dual-output buck) and STBC03 (battery charger).

Sensor fusion is enabled through concurrent I2C (HTS221, STTS22H, LPS22HH, STSAFE-A110 at addresses 0x70/0xD6/0xBE/0x57) and SPI (LIS2DTW12, LSM6DSO32X) interfaces, with interrupt-driven data acquisition routed to dedicated EXTI lines on both MCUs. GNSS positioning uses Teseo-LIV3F with I2C and UART interfaces, PPS timing output, and RF_IN antenna path routed through BGA725L6E6327FTSA1 LNA.

Key Specifications

Availability

STEVAL-ASTRA1B is available at Aetrix Electronics and suitable for livestock monitoring, fleet telematics, and supply chain logistics requiring stable component supply, pre-validated RF performance, and production-ready firmware stacks.

Supply support for STEVAL-ASTRA1B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and wireless SoCs for industrial, automotive, and IoT applications.

This kit belongs to ST's ASTRA (Advanced Smart Tracking Reference Architecture) product line - engineered specifically to de-risk multiconnectivity asset tracking system development through hardware-software co-design and cloud-integrated reference implementations.

FAQ

What wireless protocols does STEVAL-ASTRA1B support out of the box?

STEVAL-ASTRA1B natively supports Bluetooth 5.3 (via STM32WB5MMG), LoRa and GFSK (via STM32WL55JC), NFC Forum Type 4 (via ST25DV64K), and GNSS (GPS/Galileo/BeiDou/GLONASS via Teseo-LIV3F). All protocol stacks are included in the FP-ATR-ASTRA1 firmware package with pre-certified RF layouts and antenna matching networks.

How is sensor data synchronized across BLE and LoRa links?

Sensor data is acquired via shared I2C/SPI buses managed by the STM32WB5MMG application processor, which aggregates readings, applies timestamping using Teseo-LIV3F's 1PPS signal, and routes payloads to either BLE (for local gateway upload) or LoRa (for wide-area transmission) based on configurable rules in the FP-ATR-ASTRA1 middleware - no external synchronization logic required.

Does STEVAL-ASTRA1B include production-grade security features?

Yes - it integrates STSAFE-A110 with hardware-accelerated ECDSA, AES-128, SHA-256, and secure key injection during manufacturing. The secure element anchors the device identity, validates firmware signatures at boot, and establishes TLS 1.2 sessions with DSH-ASSETRACKING cloud using X.509 certificates stored in protected memory.

Can the GNSS module operate indoors or under canopy?

The Teseo-LIV3F GNSS module achieves assisted-GNSS (A-GNSS) operation using ephemeris data delivered over BLE or LoRa, enabling cold-start TTFF <25 s and position lock under partial sky view. However, full multi-constellation acquisition requires direct sky visibility; indoor use relies on sensor-fused dead reckoning (accelerometer + gyroscope) between GNSS fixes.