Ambient Light Monitor

Real-time Mac ambient light sensor dashboard.

Reads the built-in ALS (Ambient Light Sensor) via ioreg and streams lux values to a web dashboard using Server-Sent Events.

Features

• Real-time lux display with environment description
• Color-coded gauge bar
• 60-second rolling history chart
• Background adapts to ambient brightness
• Auto-reconnect on disconnect
• Zero dependencies — Python stdlib only

Usage

python3 server.py
# Open http://localhost:8080

Requirements

• macOS with ambient light sensor (Apple Silicon / Intel)
• Python 3