ST STM32 B-L475E-IOT01A2 IoT Discovery Kit for Connected Prototyping

Develop connected IoT applications with B-L475E-IOT01A2, combining STM32L4 MCU, multi-protocol connectivity, and advanced sensors in a compact, energy-efficient platform.

The B-L475E-IOT01A2 STM32 IoT Discovery Kit is a compact, feature-rich platform designed to accelerate IoT development. Powered by the ARM® Cortex®-M4–based STM32L4 MCU, it combines ultra-low-power processing, cloud connectivity, and advanced sensing capabilities, providing engineers with a reliable foundation for rapid prototyping of connected applications.

The kit includes a wide range of built-in connectivity options, such as Wi-Fi, Bluetooth®, Sub-GHz, and NFC, along with multiple environmental and motion sensors. Developers can measure temperature, humidity, pressure, and detect motion, gestures, and voice input, enabling a broad spectrum of IoT applications right out of the box.

Expansion is straightforward with support for Arduino Uno V3 and PMOD add-on boards, allowing for easy integration of additional sensors, actuators, and modules. Preconfigured software examples and libraries streamline development, whether for proof-of-concept prototypes or fully functional applications.

By combining connectivity, sensing, and extensibility in a single platform, the B-L475E-IOT01A2 Discovery Kit reduces development time, shortens design cycles, and empowers engineers to explore innovative IoT solutions efficiently.

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Features

Ultra-low-power STM32L4 Series MCUs based on Arm^® Cortex^®-M4 core with 1 Mbyte of Flash memory and 128 Kbytes of SRAM, in LQFP100 package
64-Mbit Quad-SPI (Macronix) Flash memory
Bluetooth^® V4.1 module (SPBTLE-RF)
Sub-GHz (868 MHz or 915 MHz) low-power-programmable RF module (SPSGRF-868 or SPSGRF-915)
802.11 b/g/n compliant Wi-Fi^® module from Inventek Systems (ISM43362-M3G-L44)
Dynamic NFC tag based on M24SR with its printed NFC antenna
2 digital omnidirectional microphones (MP34DT01)
Capacitive digital sensor for relative humidity and temperature (HTS221)
High-performance 3-axis magnetometer (LIS3MDL)
3D accelerometer and 3D gyroscope (LSM6DSL)

260-1260 hPa absolute digital output barometer (LPS22HB)
Time-of-Flight and gesture-detection sensor (VL53L0X)
2 push-buttons (user and reset)
USB OTG FS with Micro-AB connector
Expansion connectors:
- Arduino™ Uno V3
- PMOD
Flexible power-supply options:
- ST LINK USB V_BUS or external sources
On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port and debug port
Comprehensive free software HAL library including a variety of examples, as part of the STM32Cube MCU Package
Support of a wide choice of Integrated Development Environments (IDEs) including IAR^™, Keil^®, GCC-based IDEs, Arm^® Mbed Enabled^™
Arm^® Mbed^™ online (see http://mbed.org)