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Smartplug system for measuring and controlling AC loads, based on STM32, ST7540 PLM and STPM01

STEVAL-IHP002V2

Overview

The STEVAL-IHP002V2 demonstration board implements a PLM smartplug node which allows monitoring the energy consumption of a mains plug and controlling any kind of load in on/off mode through a relay.

The board is based on the STM32F103CB microcontroller, the ST7540 PLM module and the STPM01 mono-phase energy metering IC.
The board is designed to fit a standard "503" wall box.
The voltage, current, power, active energy and the output status can be sent to a PLM data concentrator through a power line communication network on request. Moreover, if the power consumption changes, it is sent asynchronously to the data concentrator.

Main features

Energy measurement by the STPM01
Power line communication by the ST7540 up to 4.8 kbps
USART connectivity or expansion connector
Output with two contacts (NO/NC) and common contact for generic load
Designed to fit a standard "503" wall box
RoHS compliant

Design Files

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Update:2025-06-25 09:48:30

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