You can also use a photoresistor as an input device in analog mode with the Arduino running Max MSP and Jitter with Maxuino.

Parts necessary

10K Ohm resistor
Arduino UNO
Connector wires
Photocell (variable resistor)

CC Arduino.com diagram of photo resistor and Arduino UNO

Schematic

CC Arduino.com diagram of photo resistor and Arduino UNO

The code for the analog input for the photo resistor is the same as that for the potentiometer.

Copyright Ken Rinaldo

MAX MSP lessons continue in Chapter 9