THE DEVIL SUGGESTS
Build an environmental sensor
Make a small monitor for one part of your surroundings, such as room temperature, humidity, light or air quality. Treat it as a way to spot patterns, not as professional safety equipment.
Do it
- Pick one or two environmental readings to track.
- Choose compatible sensors and a controller.
- Wire up the components and test their output.
- Place the sensor where its readings will be meaningful.
- Log values for a few days and compare them with what you notice.
What next?
Keep the useful notes, photograph the result if there is one, then go and find something else to do.