Arduino electric eye and musical stairs

Summary of experiments with IR beam detection.

Initial testing with Radio Shack sensors and IRremote library:

musical stairs project

Built by students at Gould Academy, Bethel, Maine 2013.

Detects movement on stairs using individual IR sensor pairs on each step. When an IR beam is broken, a note is triggered and status LED lights up. Using an Ethernet shield, the data is tracked in a feed at


Adafruit IR emitters and receivers

construction of sensor units

IR transmitters and receivers wired into terminal strips (no soldering):

transmitting unit:


receiving unit:


layout of stairs

Arduino connections and code


[wpdm_file id=19]

(local file: musicalStairsVersion3tz2)