STMicroelectronics STEVAL-IPR002V2

Overview

STEVAL-IPR002V2 from STMicroelectronics is an evaluation system built around the M24LR64E-R dual-interface EEPROM, enabling autonomous battery-powered data logging via RF (13.56 MHz) and I²C interfaces. It integrates temperature, humidity, MEMS motion, and photodiode light sensors, stores readings in dual-memory EEPROM, and supports two operational modes: continuous 1 Hz data logging or threshold-triggered event logging.

For engineers reviewing the STEVAL-IPR002V2 datasheet, STEVAL-IPR002V2 pinout, STEVAL-IPR002V2 application, or STEVAL-IPR002V2 equivalent, key selection considerations include dual-interface sensor logging architecture, RFID-based readout capability, battery-operated field deployment, and GUI-enabled data retrieval for supply chain tracking and environmental monitoring validation.

Technical Context

The board implements a self-contained RFID tag with embedded sensing and nonvolatile storage, using the M24LR64E-R's integrated RF transceiver and I²C interface to decouple sensor acquisition (via STM8L MCU) from wireless readout. Sensor data is timestamped and stored in dedicated EEPROM memory segments allocated per parameter.

It operates in two distinct firmware-configurable modes: data logger mode captures all four sensor values every second until memory exhaustion; event logger mode monitors each sensor against user-defined thresholds and logs only out-of-bound events, optimizing EEPROM usage and extending battery life in low-activity environments.

Key Specifications

Availability

STEVAL-IPR002V2 is available at Aetrix Electronics and suitable for supply chain traceability systems, industrial environmental monitoring, medical device usage logging, and consumer electronics field testing requiring stable component supply and rapid prototyping validation.

Supply support for STEVAL-IPR002V2 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 specializing in microcontrollers, power management, sensors, and analog/mixed-signal ICs for industrial, automotive, and consumer applications.

The STEVAL series comprises ST's official evaluation platforms designed to accelerate development of sensor fusion, RFID-integrated data logging, and ultra-low-power IoT edge nodes using ST's proprietary dual-interface memory and MCU ecosystems.

FAQ

What communication protocols does the STEVAL-IPR002V2 support?

The board supports ISO/IEC 15693-compliant 13.56 MHz RFID communication for wireless read/write access to the EEPROM, and standard I²C (up to 400 kHz) for local MCU-controlled sensor acquisition and memory management. Both interfaces operate independently and can be used concurrently without conflict.

How is sensor data stored and retrieved?

Sensor values are written to the M24LR64E-R's EEPROM by the onboard STM8L microcontroller, with memory partitioned per sensor type. Data is retrieved either wirelessly via RFID reader or locally via I²C connection, then visualized using the provided Windows GUI application that parses and displays timestamps, sensor IDs, and raw/converted measurements.

Does the STEVAL-IPR002V2 require external programming hardware?

No external programmer is required for normal operation. The STM8L firmware is preloaded and configured for immediate use in data or event logging mode. Firmware updates or custom configuration require ST-LINK/V2 and STVD or STM8CubeIDE, but these are optional - not needed for out-of-box sensor logging and RFID readout.

What is the operating temperature range of the evaluation board?

The board operates across –20 °C to +70 °C, constrained by the M24LR64E-R EEPROM (–20 °C to +70 °C), STM8L MCU (–40 °C to +85 °C), and onboard MEMS/humidity sensors (typically –20 °C to +70 °C). Battery performance and RF range may degrade near temperature extremes.