Summing up—class presentation of final project was successful. As suspected, Arduino not necessarily necessary for the results achieved. Still, a good template for future iteration, experimentation…

Transistors in the (flash) light…

Connection between Arduino and 555 circuits is only through transistor switch to connect to ground. 555 power is provided by a 9V battery attached to each circuit. Transistors are bundled […]

Analog inputs from sensors to pins A0, A1, & A2 on Arduino. One leg of each sensor through transistor to ground, the other leg to 5V power. Digital outputs from […]

Originally intended as a pretty, fairy tale-like sound installation where the instability of the sound’s source would seem magical (or so I think), the current result of the Septopus’s resurrection […]

The currently functional version of my final project is a simplified adaptation of my original idea (see  SEPTOPUS and 555 posts). Basically, there are 3 sensors connected to 3 555 […]

WORKED!