STMicroelectronics STEVAL-IPE020V1

Overview

STEVAL-IPE020V1 from STMicroelectronics is a fully functional single-phase electricity meter demonstration board built around the STPM10 metrology IC and STM8L152 ultra-low-power microcontroller, featuring dual M24LR64 RFID-enabled EEPROMs for tamper-resistant data logging, IrDA communication, and Class 1 accuracy (200:1 dynamic range) at 240 V nominal voltage and 10 A typical current.

For engineers reviewing the STEVAL-IPE020V1 datasheet, STEVAL-IPE020V1 pinout, STEVAL-IPE020V1 application, or STEVAL-IPE020V1 equivalent, this board supports rapid validation of energy metering firmware, EEPROM-based parameter retention, low-power operation down to battery-backed modes, and IrDA-based field readout - critical for utility-grade meter design and certification testing.

Technical Context

The board implements a complete single-phase metering signal chain: primary-side current transformer and secondary-side shunt sensor inputs feed the STPM10's dual sigma-delta ADCs, enabling simultaneous voltage and current sampling with 22-bit effective resolution and on-chip RMS/energy computation. The STM8L152 handles display, tamper detection, maximum demand calculation, and EEPROM interface via I²C.

RFID access to the dual M24LR64 EEPROMs allows contactless read/write of metering registers and event logs without physical disassembly. IrDA transceiver provides optical serial communication compliant with IEC 62056-21, supporting configuration and data retrieval in live installations.

Key Specifications

Availability

STEVAL-IPE020V1 is available at Aetrix Electronics and suitable for utility meter development, smart grid pilot deployments, and energy monitoring system qualification requiring stable component supply, traceable evaluation hardware, and pre-validated metrology firmware reference.

Supply support for STEVAL-IPE020V1 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, analog ICs, power devices, and sensors for industrial, automotive, and consumer applications.

The STEVAL series reflects ST's dedicated evaluation platform strategy - providing production-ready, application-specific reference designs that accelerate time-to-certification for metering, motor control, and power conversion systems.

FAQ

Does STEVAL-IPE020V1 include production-ready firmware?

Yes - the board ships with pre-flashed firmware implementing full Class 1 metering functionality: real-time energy accumulation, tamper detection (magnet, cover removal, power cycle), maximum demand calculation, LCD display, and IrDA/RFID data access. Source code for STM8L152 is provided under ST's license terms.

What sensor configurations are supported on this board?

The board supports dual current sensing paths: a primary-side current transformer (CT) for high-isolation, high-current measurement and a secondary-side shunt resistor (0.001 Ω, 2 kW rating) for precision low-current metrology. Voltage is measured via resistive divider directly from the 240 V line.

Can the M24LR64 EEPROMs be replaced with standard I²C EEPROMs?

No - the M24LR64 devices integrate an RF interface (ISO 15693) alongside I²C, enabling contactless read/write without powering the board. Standard I²C EEPROMs lack RFID capability and would disable tamper-proof field data access, a core design requirement for this evaluation platform.

Is STEVAL-IPE020V1 certified for any metrology standards?

The board implements hardware and firmware aligned with IEC 62053-21 (Class 1 accuracy), IEC 62056-21 (IrDA optical port), and ISO/IEC 15693 (RFID interface). It is not itself type-approved; however, it serves as a pre-validated reference for achieving MID or ANSI C12.x certification in final meter designs.