Smart Home Appliances

This block diagram presents the hardware schematic of washing machines and dryers, adopting GD32M531 as the main control MCU. The power supply converts 220V AC to 24V via AC/DC, then outputs 5V to the MCU through DC/DC. On the left, GPIO ports connect keys, display and buzzer; ADC collects signals from temperature sensors, and SPI interfaces with EEROM for data storage. UART communicates with GD32VW553-MINI wireless module for network access. On the right, PWM signals control the PFC circuit and dual motor drivers for washing and drain motors, while ADC performs real-time current sampling. Integrating power conversion, human-machine interaction, sensor acquisition, wireless connectivity and motor driving, this design fulfills all control demands of laundry appliances.