Smart Stroller Design Based on STM32

The intelligent baby stroller based on STM32 aims to provide health care for infants while reducing the workload of caregivers. The system used STM32F103C8T6 as the main control chip and integrates various sensor modules such as DHT11 temperature and humidity sensor, BH1750 light intensity sensor, and HX711 pressure sensor to monitor infants’ vital signs. The system can soothe infants through automatic shading, rocking, and music playback devices. For cry detection, the system further extracted time-domain and frequency-domain features of infants’ cries and employs a Support Vector Machine (SVM) for classification and identification, with a Random Forest classifier used to verify its reliability. The ESP8266-WIFI module was utilized to upload various data to Huawei Cloud IoT via the MQTT protocol, allowing users to view the indicators of the baby stroller in real-time and send commands through a mobile app, enabling human-computer interaction.