🔋⚠️ Office Wi-Fi Battery Alert

This project contains a bash script that checks if your MacBook is on battery power when connected to certain Wi-Fi networks (like office networks). If it meets both conditions, it'll use text-to-speech to remind you to plug in your laptop and save battery life!

Requirements

• macOS (tested on macOS Catalina and later)
• Terminal access

Installation

1. Clone this repository or download the script file.
2. Open Terminal and navigate to the directory containing the script.
3. Make the script executable:

chmod +x battery-saver.sh

Configuration

1. Open battery-saver.sh in a text editor.
2. Modify the office_networks array to include your office Wi-Fi network names:

office_networks=("Eleven Ways" "Home")

Setting Up the Cron Job

To run the script automatically every 15 minutes:

1. Open Terminal.
2. Edit your crontab file:

   crontab -e
   

3. Add the following line (replace /path/to/script with the actual path):

   */15 * * * * /path/to/script/battery-saver.sh
   

4. Save and exit the editor.

Manual Execution

To run the script manually:

./battery-saver.sh

How It Works

1. The script checks if the MacBook is running on battery power.
2. It then checks if the current Wi-Fi network matches any in the predefined list of office networks.
3. If both conditions are true, it uses the say command to speak a reminder message.

Customization

• Modify the speak_message function to change the reminder text.
• Adjust the cron job timing as needed (e.g., change */15 to */5 for every 5 minutes).

Troubleshooting

• Ensure the script has execute permissions.
• Check that the Wi-Fi interface name (en0) matches your system. Use networksetup -listallhardwareports to verify.
• Make sure your system volume is audible for the speech alert.

License

This project is open source and available under the MIT License.

Contributing

Contributions, issues, and feature requests are welcome. Feel free to check issues page if you want to contribute.

Author

Roel Van Gils