STMicroelectronics STEVAL-IPE012V3

Overview

STEVAL-IPE012V3 from STMicroelectronics is a single-phase energy meter demonstration board built around the STPM01 metrology IC and STM8L152C6 ultra-low-power microcontroller, featuring Rogowski coil current sensing, IrDA® communication, 1-class accuracy over 200:1 dynamic range, and real-time functions including tamper detection, maximum demand calculation, and EEPROM-based data logging.

For engineers reviewing the STEVAL-IPE012V3 datasheet, STEVAL-IPE012V3 pinout, STEVAL-IPE012V3 application, or STEVAL-IPE012V3 equivalent, this board serves as a validated reference for Class 1 single-phase metering designs requiring low-power operation, impulse output (3200 imp/kWh), and utility-grade parameter display under 45–65 Hz power frequencies.

Technical Context

The board implements a complete metering signal chain: Rogowski coil sensors feed isolated analog front-end inputs to the STPM01, which performs high-accuracy active/reactive energy computation, RMS measurement, and harmonic analysis; the STM8L152C6 handles system control, LCD/LED display, IrDA® physical layer transmission, and EEPROM-backed event logging.

It supports nominal 240 V / 10 A operation with 80 A overload capability, operates across 0.6–1.2 × V_b, and delivers calibrated pulse output at 3200 impulses per kWh - meeting IEC 62053-21 Class 1 requirements for active energy measurement in residential and light-commercial metering applications.

Key Specifications

Availability

STEVAL-IPE012V3 is available at Aetrix Electronics and suitable for residential energy metering, smart grid node prototyping, and utility compliance testing requiring stable component supply, traceable calibration references, and pre-validated hardware architecture.

Supply support for STEVAL-IPE012V3 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, power management ICs, sensors, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built reference platforms that demonstrate full-system functionality of ST's metrology and low-power MCU combinations for rapid validation of utility-grade metering solutions.

FAQ

Is STEVAL-IPE012V3 certified for utility deployment?

No - it is a demonstration board, not a type-approved meter. It implements Class 1 metrology per IEC 62053-21 but requires full system-level certification (e.g., MID, ANSI C12, OIML) for field deployment. ST provides design files and firmware to accelerate certified product development.

What firmware is preloaded on the STM8L152C6?

The board ships with ST's reference firmware enabling real-time energy calculation, LCD parameter display (voltage, current, power, energy), tamper flagging, maximum demand tracking, EEPROM logging of events, and IrDA®-based data readout using IEC 62056-21 mode E protocol.

Can the Rogowski coil interface be replaced with shunt-based sensing?

Yes - the schematic shows dual current input paths: one for Rogowski coil (with integrator op-amp stage) and another for shunt resistor (via differential amplifier). Hardware modification is required, and firmware gain calibration must be updated to maintain Class 1 accuracy across the new sensor transfer function.

Does STEVAL-IPE012V3 support voltage sag/swell detection?

Yes - the STPM01 continuously monitors RMS voltage and triggers configurable thresholds for sag (under-voltage) and swell (over-voltage) events, which are logged in EEPROM and optionally signaled via LED or IrDA® output as part of the implemented firmware feature set.