Presence Detector

made with input devices

To Do

Group Assignment

• probe an input device's analog levels and digital signals

Individual Assignment

• measure something: add a sensor to a microcontroller board that you have designed and read it

Tools

• Software: Arduino IDE
• Machines: N/A

Materials

• Arduino
• connective electronics componenets

I completed the group assignment by probing at the analog levels and digital signals from a photocell.

I had two ideas: an accelerometer paired with computer vision to track the movement of my fire spinning prop while I dance and a prescence detector for my suite-styled commununal restroom, so I know when it's available. I decided to pursue the latter for the scope of the project this week.

The fire spinning idea was really elusive to me because I've struggled to execute a few moves, and being able to analyze precisely what went wrong would be cool. Also, capturing complex motion seemed like an interesting challenge to take on.

I designed a microcontroller board, milled it on an Other Mill, and soldered on a photocell and IoT dev board.

KiCad was much easier to navigate the second go around, and the sensor picked up lighting changes.