Prove going for a walk makes you more productive by measuring CO2 with an IoT device.
summary
Claims that indoor CO2 makes people drowsy and a short walk restores focus, backed by a cited Harvard finding of 21% cognitive drop when CO2 rises from ~550 to 945 ppm. Practical build: a Raspberry Pi 5 runs .NET IoT, reads a photoacoustic NDIR Grove SCD41 every ~5s (examples: 454 ppm baseline, breaths spike >1700 ppm), publishes JSON via MQTT → Azure Event Grid and drives an LED array (green/yellow/red) for alerts. Watch if wanting a reproducible IoT prototype and cloud pipeline, skip if only after theory.
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chapters (27)
- 0:00Introduction
- 1:06Meetings make you tired
- 3:35CO2 science explained
- 5:19Live CO2 demo
- 8:14CO2 levels and workplace performance impact
- 9:20CO2 in classrooms
- 12:10IoT device basics
- 16:07Raspberry Pi setup
- 18:33CO2 sensor tech
- 21:43I2C communication
- 23:34Streaming CO2 data
- 25:01IoT with .NET
- 28:51Cloud device connection
- 31:38Azure IoT overview
- 34:05Event Grid for MQTT
- 36:13Event Grid config
- 40:46Azure setup steps
- 42:33Device to MQTT with .NET
- 44:59CO2 cloud processing
- 47:03Logitech Spot device
- 48:08Real-time LED monitoring
- 50:38Event Grid ecosystem
- 51:42Demo limits and Fabric
- 52:43Key takeaways
- 54:30Why going for a walk is scientifically better
- 54:51Build IoT yourself
- 55:35Closing
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