Low-power smart home node design based on STM32L433

摘要

This design proposes a low-power node solution based on the Global System for Mobile communication (GSM) wireless sensor network, which aims to solve the problem that the environment does not meet the general node deployment conditions. This program uses STMicroelectronics' STM32L433 ultra-low-power chip as the main control chip to reduce power consumption. The communication adopts the GSM module for communication. The DHT11 is used as the greenhouse acquisition module and the Mipex-02 is used as the smoke sensor. This design is based on GPRS technology, embedded technology, cloud service technology, and jointly build a set of smart home systems. In this paper, the main control ultra-low-power operation is realized by controlling the chip dormancy, and the data acquisition and upload cycle can be set, and then the communication module can be awakened periodically, and an ultra-low power smart home node design is realized.