STMicroelectronics STEVAL-STLKT01V1

Overview

STEVAL-STLKT01V1 from STMicroelectronics is a complete SensorTile development kit comprising the SensorTile core board (STEVAL-STLCS01V1), SensorTile Cradle (STEVAL-STLCR01V1), and SensorTile Expansion Cradle (STEVAL-STLCX01V1), enabling rapid prototyping of ultra-compact IoT sensor nodes with Bluetooth LE, 9-axis motion sensing, environmental monitoring, and audio capture. It integrates STM32L476 MCU (Cortex-M4, 80 MHz), LPS22HB barometer, LSM303AGR eCompass, LSM6DSM IMU, HTS221 humidity/temperature sensor, MP34DT04 microphone (64 dB SNR), BlueNRG-MS BLE SoC, and STBC08 Li-ion charger.

For engineers reviewing the STEVAL-STLKT01V1 datasheet, STEVAL-STLKT01V1 pinout, STEVAL-STLKT01V1 application, or STEVAL-STLKT01V1 equivalent, this kit supports firmware development via SWD interface, real-time sensor data streaming over BLE to ST BlueMS mobile app, USB audio/data logging on PC, and hardware expansion through Arduino-compatible headers and micro-SD slot - all within a 13.5 mm × 13.5 mm footprint.

Technical Context

The kit implements a modular architecture: the SensorTile Core System hosts all sensors and the STM32L476 MCU running embedded firmware; the Cradle adds 3.3 V regulation, audio DAC with 3.5 mm jack, and Arduino connectivity; the Expansion Cradle provides direct SWD access and breakout for external ST-Link debugging. All boards share identical mechanical footprint and solderable SWD interface.

Power management includes dual-path supply (USB or Li-ion battery), thermal-regulated STBC08 charging, and per-sensor power gating (e.g., LSM6DSM gyro down to 9 μA @ 12.5 Hz, LPS22HB barometer at 3–12 μA @ 1 Hz). BLE communication uses BlueNRG-MS supporting concurrent master/slave roles per Bluetooth 4.1.

Key Specifications

Availability

STEVAL-STLKT01V1 is available at Aetrix Electronics and suitable for IoT sensor node evaluation, wearable device prototyping, and industrial condition monitoring requiring stable component supply, pre-validated hardware integration, and out-of-box mobile/cloud connectivity.

Supply support for STEVAL-STLKT01V1 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, designing and manufacturing microcontrollers, sensors, power ICs, and wireless solutions for automotive, industrial, and consumer markets.

This kit belongs to ST's SensorTile platform - a family of ultra-miniaturized, low-power, fully integrated sensor development systems targeting rapid proof-of-concept for edge AI, predictive maintenance, and smart wearable applications.

FAQ

What interfaces does STEVAL-STLKT01V1 support for programming and debugging?

STEVAL-STLKT01V1 supports SWD (Serial Wire Debug) via solderable pads on all three boards. The Cradle and Expansion Cradle include dedicated 5-pin SWD connectors compatible with ST-LINK/V2-1; the Core System can also be programmed directly using a flat cable and Nucleo board after removing CN2 jumpers. No JTAG interface is provided.

Can STEVAL-STLKT01V1 operate without a host PC or smartphone?

Yes - the SensorTile Core System runs pre-loaded firmware independently. It can log sensor data to micro-SD card, stream over BLE to ST BlueMS app on iOS/Android, or output audio via Cradle's DAC and 3.5 mm jack. Battery operation (via STBC08-charged Li-ion) enables fully untethered field testing.

Does the kit include software tools and example code?

Yes - ST provides STSW-STLKT01 USB starter firmware package with DataLog and USB Audio examples, plus Android/iOS ST BlueMS app source and documentation. All are freely downloadable from st.com/sensortile and include full HAL drivers, sensor fusion libraries, and BLE GATT service definitions.

What mechanical and electrical compatibility does the SensorTile Core System offer?

The STEVAL-STLCS01V1 core board features a standardized 13.5 mm × 13.5 mm footprint with castellated edges and solderable SWD pads. It mates mechanically and electrically with both Cradle variants (STLCR01V1 and STLCX01V1), sharing identical pin mapping for power, SWD, I²C, SPI, and GPIO - enabling seamless transition between prototyping and expansion scenarios.