# Round Display Smartwatch

Day 79 of the 100 Days 100 IoT Projects collection. Board: XIAO.

A circular GC9A01 display on the XIAO ESP32-S3 shows time and weather from NTP and OpenWeatherMap. Round-screen wearable chic.

## How it works

Time arrives via NTP and weather via the OpenWeatherMap API, and the XIAO ESP32-S3 renders both onto the circular GC9A01 display. Round screens demand circular thinking: the layout wraps around the center instead of filling corners. Wearable chic with real data behind it.

## What you'll learn

- Round display rendering
- Circular UI layout
- NTP plus weather APIs
- Wearable data design

Full project (code, wiring diagram, Wokwi simulation): https://github.com/kritishmohapatra/100_Days_100_IoT_Projects/tree/main/GC9A01_Round_Display_Smartwatch

Summary by SkillShop. Code and diagrams belong to the original repo.