STMicroelectronics STEVAL-IPE012V1

Overview

STEVAL-IPE012V1 from STMicroelectronics is a fully functional single-phase energy meter demonstration board built around the STPM10 metrology IC and STM8L152 ultra-low-power microcontroller. It delivers Class 1 accuracy (IEC 62053-21) over 200:1 dynamic current range, supports 240 V nominal voltage and 5 A typical / 45 A maximum current, and integrates IrDA communication, EEPROM data logging, tamper detection, and LCD-based parameter display for utility-grade metering validation.

For engineers reviewing the STEVAL-IPE012V1 datasheet, STEVAL-IPE012V1 pinout, STEVAL-IPE012V1 application, or STEVAL-IPE012V1 equivalent, this board serves as a reference implementation for Class 1 single-phase metering systems requiring verified metrology performance, low-power operation down to 0.6 V_BAT, and field-deployable features including magnetic tamper sensing, neutral-missing detection, and impulse output (3200 imp/kWh).

Technical Context

The board implements a complete IEC-compliant metering signal chain: primary-side current transformer and secondary-side shunt sensing feed into the STPM10's dual 22-bit sigma-delta ADCs, enabling simultaneous voltage and current sampling with harmonic analysis capability. The STM8L152 handles real-time energy calculation, MD (maximum demand) accumulation, EEPROM-backed data retention, and LCD refresh at <1.5 µA in stop mode.

Power management includes dual-supply operation (main AC-derived and backup battery), neutral-missing detection circuitry, and IrDA physical layer compliance per IrDA 1.4 standard. Operating frequency support spans 45–65 Hz, and the meter constant is fixed at 3200 impulses per kWh with calibrated pulse output timing.

Key Specifications

Availability

STEVAL-IPE012V1 is available at Aetrix Electronics and suitable for utility meter development, smart grid pilot deployments, and energy monitoring system validation requiring stable component supply, full-solution reference hardware, and ST-validated metrology firmware stack integration.

Supply support for STEVAL-IPE012V1 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 markets.

This board belongs to ST's STEVAL (ST Evaluation) platform family, engineered to accelerate time-to-prototype for metering, power conversion, and IoT edge applications with production-ready schematics, layout files, and certified firmware.

FAQ

Does STEVAL-IPE012V1 support three-phase metering?

No. The board is strictly a single-phase solution, with hardware and firmware optimized for one voltage and one current channel. Its STPM10 IC is configured for single-phase active/reactive energy measurement only, and no provision exists for third-phase signal routing, isolation, or calculation logic.

Can the meter constant be reprogrammed to values other than 3200 imp/kWh?

No. The 3200 imp/kWh value is hard-coded in firmware and aligned with the onboard calibration constants. While the STM8L152 firmware is accessible via SWIM interface, altering the meter constant requires full recalibration against traceable standards and is not supported out-of-box.

Is IrDA communication enabled by default, and what is the required host interface?

Yes, IrDA is enabled at power-up and operates at 9.6 kbps using the ST's proprietary IrDA transceiver module (U17 on schematic). Host systems require an IrDA-compliant UART interface with SIR (Serial Infrared) physical layer - no USB or Bluetooth bridge is included on-board.

What tamper detection methods are implemented on this board?

The board implements magnetic tamper detection (via Hall sensor U15), neutral-missing detection (using dedicated comparator circuitry), and cover-open detection (mechanical switch input). All events trigger non-volatile logging in EEPROM and can assert interrupt flags to the STM8L152 for real-time response.