Educational version with comprehensive comments for students.
- Reads PM1.0, PM2.5, and PM10 concentrations from NextPM sensor
- Uses UART serial communication with checksum validation
- Non-blocking timing with millis()
- Removed particle counts, kept only mass concentrations
- Extensively commented to help students understand serial protocols
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
