Interactive Plush Toy Prototype Development

Project: ESP32-Based Talking Plush Toy – Prototype Development
Project Overview
I’m building a screen-free talking plush toy for kids (3–7 years).
The goal is to create a working prototype (V1) that demonstrates:
Calm audio interaction
Simple button & Bluetooth (BLE) control
Safe, battery-powered operation
This is prototype-only, not mass production.
Scope of Work
The freelancer will:
Build a working ESP32-based prototype
Implement audio playback (pre-recorded voice files)
Support button-based triggers
Implement BLE connectivity (basic commands from phone)
Ensure safe power & insulation for a prototype
Share code + wiring diagram + build instructions
Core Features (V1)
ESP32 dev board
Pre-recorded audio playback (stories, phrases)
1–2 physical buttons
BLE commands from mobile app (play audio / change mode)
Battery-powered (AA/AAA, no lithium battery)
Speaker + amplifier
On/Off switch

Deliverables
1 working electronics prototype (bench-level)
Arduino/ESP32 source code
Simple BLE protocol description
Wiring diagram
List of components used (BOM)
Short demo video of working prototype