Casio G-Shock Smart Sync

G-Shock Smart Sync is an unofficial, open-source Android app for G-Shock, Edifice, and Pro Trek watches. It allows you to control your watch, sync data, and configure settings without a Casio ID. It offers a faster, privacy-focused, and more powerful alternative to the official Casio app.

Key Features:
• No Account Required: Skip the Casio ID login entirely.
• Calendar Sync: Push your calendar events (Google, Samsung, etc.) to your watch as reminders.
• Auto Timezone: Automatically adjusts watch time when you travel.
• Remote Control: Use your watch buttons to take photos, control music, or launch voice assistants.
• Alarm Sync: Configure watch alarms easily from your phone.
• Phone Finder: Trigger a loud alarm on your phone to find it.

Supported Watch Models:
The app works with many Bluetooth-enabled G-Shock, Edifice, and Pro Trek models.

• Square: GW-B5600, GMW-B5000, GW-B5000, DW-B5600, TRN-50
• CasiOak: GA-B2100, GBM-2100, GMC-B2100, MRG-B2100
• G-Steel: GST-B100 to B1000, GST-W1000, ECB-900
• Edifice: ECB-10 to ECB-2300, EQB-500 to EQB-2000
• MT-G / MR-G: MTG-B1000/B3000/B3100, MRG-B5000/B2100
• Others: ABL-100WE, GBD-100/200, GBD-H1000/H2000, GPR-B1000

Note: While these watches connect, not all specific hardware features may be fully supported yet.

App Walkthrough:

1. Connection Screen: Handles the Bluetooth connection via BLE. Connection is typically much faster than the official app (~3.5s vs 12s).
2. Time Setting: Manage your watch's timekeeping effortlessly. Sync your phone's time, timezone, and DST settings to the watch immediately.
3. Alarms: Read and configure the 5 alarms stored on your watch and the hourly signal (Chime).
4. Events (Calendar Sync): Sync your Android calendars to your watch! Pushes events to the watch's Reminder feature.
5. Actions (Remote Control): Turn your watch into a remote control. Assign actions to button presses (Find Phone, Take Photo, Flashlight, Next Track, Voice Assist, Set Prayer Alarms).
6. Settings: Configure app and watch preferences like light duration, power saving, and more.

Related Projects:
• G-Shock Time Server: Headless time server for Raspberry Pi or Linux.
• G-Shock API for ESP32: Standalone time server firmware for ESP32.
• G-Shock Smart Sync Webapp: Browser-based synchronization via Web Bluetooth.
• GShockAPI: The core library this app is built on.