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Safe Zone
An ESP32-C3 wearable safety-tag prototype concept for children and elderly people.
January 2026• Team: Wiztron Workshop Project• Role: Project Team Member
About this Project
Safe Zone was developed during the Wiztron workshop. It uses an ESP32-C3 board to scan configured Wi-Fi or Bluetooth signals and trigger an alert when the wearer moves outside the expected safe range. A buzzer provides a local alert, while a Python script can trigger an alert on a connected laptop.
Tech Stack
ESP32-C3
Python
Wi-Fi
Bluetooth
Tools Used
Arduino IDE
Python
VS Code
Key Features
Safety Features
- ▸Checks configured Wi-Fi or Bluetooth signals to estimate whether the tag is within the safe area.
- ▸Uses a buzzer to provide a local alert when the safe-zone condition is triggered.
- ▸Can send a serial signal to a Python script running on a connected laptop.
Hardware & Software
- ▸ESP32-C3 microcontroller with Wi-Fi and Bluetooth capability.
- ▸Python script for laptop-side alert handling.
- ▸Prototype concept for a compact wearable safety tag.
Highlights
ESP32-C3 wearable tag concept
Wi-Fi and Bluetooth signal scanning
Buzzer-based local alert
Python-based laptop notification
Safety use case for children and elderly people
Challenges & Solutions
Challenge
Detecting when the tag moves away from a safe area
Solution
Explored Wi-Fi SSID scanning and Bluetooth signal range as ways to detect the safe-zone boundary.
Challenge
Providing an alert beyond the wearable hardware
Solution
Used serial communication with a Python script to trigger a laptop-side sound alert.