UM1569 Datasheet, PDF (1/24 Pages) STMicroelectronics – SmartPlugW demonstration board

UM1569
Application note
STEVAL-IHP004V1: SmartPlugW demonstration board
By Salvo Bonina and Nunzio Dipaola
Introduction
This demonstration board is a smartplug based on the STM32W108CB microcontroller
integrated into the SPZB32W1A2.1 module, the STPM10 energy metering IC, and the
T2035H Triac. The board is a node of an IEEE-802.15.4 network which allows the final user
to monitor and manage the energy consumption of the load connected to the SmartPlugW.
The board has been developed to provide a guideline to build an automation subsystem for
energy management and is designed to fit the dimensions of a standard box for wall
installation and easy integration into the electrical systems of homes or commercial
buildings. The current, power, energy and other information related to the electrical load
connected to the SmartPlugW board are sent to a data concentrator through the wireless
network of a home or building. The board includes the following sections shown in the block
diagram of Figure 1:
• Energy measurement by the STPM10 IC
• Wireless communication up to 250 kbps by the SPZB32W1A2.1 module
• Data storage by the M24LR64 dual-interface EEPROM
• Power supply by VIPer16
• Load driver with soft-start/stop by T2035H TRIAC and relay
Figure 1. SmartPlugW block diagram
March 2013
Power
12V
Management
RELAY
TRIAC
DUAL EEPROM
M24LR64
Energy Measurement
STPM10
I2C
ZigBee Module
IEEE802.15.4
SPI
SPZBW
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