AI-Enabled Smart Electronic Integrated Eco-Friendly Toys

This invention concerns the development of smart sensor-enabled eco-friendly toys fabricated from banana residue bio-composite materials. The toy enclosure is produced using banana fiber and sheath powder reinforced with bio-resins through compression molding, providing mechanical strength and electrical insulation. An embedded control system built on an ESP32-WROOM-32 low-power microcontroller manages real-time sensing, control and wireless communication. The system integrates capacitive touch (TTP223), PIR motion (HC-SR501), ambient light (LDR), temperature (DS18B20) and sound (KY-038) sensors. Interactive outputs include addressable RGB LEDs (WS2812B), piezo buzzers, vibration motors and audio playback through PAM8403 amplifier driven speakers. Power is supplied via a 3.7 V lithium-ion battery supported by TP4056 charging/protection circuitry and MT3608 DC–DC boost regulation. Firmware is developed in embedded C featuring interrupt routines, sensor fusion and deep-sleep power management. Bluetooth and Wi-Fi interfaces enable user configuration and monitoring. A modular PCB design supports scalable toy variants and ensures safe low voltage operation. This invention demonstrates a sustainable and intelligent embedded electronics platform for educational toy applications.