STMicroelectronics STEVAL-IPE007V1

Overview

STEVAL-IPE007V1 from STMicroelectronics is a single-phase energy meter evaluation board based on the ST7FLITE20 microcontroller, compliant with IEC 61036 Class 1 accuracy requirements. It measures active power, voltage, current, power factor, and line frequency using dual current transformers (CTs) on live and neutral lines for tamper-resilient operation, and displays parameters via an integrated GDM093 LCD module.

For engineers reviewing the STEVAL-IPE007V1 datasheet, STEVAL-IPE007V1 pinout, STEVAL-IPE007V1 application, or STEVAL-IPE007V1 equivalent, this board supports rapid prototyping of revenue-grade metering systems with software calibration, RTC-integrated time stamping, capacitive power supply operation, and tamper detection that maintains measurement integrity during physical interference.

Technical Context

The board implements a Class 1 mono-phase energy metering architecture without ASSPs, relying entirely on the ST7FLITE20 MCU for signal acquisition, computation, and display control. Analog front-end conditioning includes op-amp–based AFE switching, resistor-divider voltage sensing, and programmable current gain stages calibrated via PC GUI.

Tamper resilience is achieved through dual-CT differential current monitoring and real-time detection logic embedded in firmware. Energy accumulation is output as frequency-modulated pulses while accumulated values are stored in external EEPROM and rendered on the 7-parameter LCD interface via SPI-connected RTC.

Key Specifications

Availability

STEVAL-IPE007V1 is available at Aetrix Electronics and suitable for utility meter development, smart grid pilot deployments, and industrial energy monitoring systems requiring stable component supply and legacy design continuity.

Supply support for STEVAL-IPE007V1 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, analog ICs, power management, and sensor solutions for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL evaluation platform family, designed to accelerate development of certified energy metering systems with reference firmware, hardware schematics, and compliance-ready signal chains.

FAQ

Is STEVAL-IPE007V1 still in production?

No - STEVAL-IPE007V1 is marked obsolete by STMicroelectronics as of its July 2007 release. It remains available through authorized legacy distributors and Aetrix Electronics for repair, maintenance, and legacy system support under controlled lifecycle management.

Does the board support reactive or apparent energy measurement?

No - the documented firmware and hardware design focus exclusively on active energy (kWh) per IEC 61036 Class 1. Power factor and line frequency are measured, but no circuitry or software support for reactive (kVARh) or apparent (kVAh) energy calculation is included or validated.

Can the LCD display be replaced with another module?

Yes - the GDM093 LCD uses standard 4-bit parallel interface and dedicated segment drivers tied to fixed MCU pins. Replacement requires matching pinout, voltage levels, and timing; no native support for serial or graphic LCDs is provided in the reference firmware.

What communication interfaces does STEVAL-IPE007V1 provide?

The board provides an ICC (In-Circuit Calibration) connector for firmware updates and calibration, plus SPI signals routed to the RTC and LCD. No UART, USB, RS-485, or wireless interfaces are implemented - external connectivity must be added via expansion headers or custom daughterboards.