Alan Proctor-Thomson

/* circuit: * 8-ohm speaker on digital pin 8 * photoresistor on analog 0 to 5V * 4.7K resistor on analog 0 to ground created 21 Jan 2010 by Tom Igoe This example code is in the public domain. …

/* * 8-ohm speaker on digital pin 8 created 21 Jan 2010 by Tom Igoe This example code is in the public domain. */#define NOTE_B0 31#define NOTE_C1 33#define NOTE_CS1 35#define NOTE_D1 37#define NOTE_DS1 39#define NOTE_E1 41#define NOTE_F1 44#define NOTE_FS1…

#define ON HIGH#define OFF LOWvoid setup() { pinMode(13, OUTPUT); }void loop() { digitalWrite(13, ON); delay(1000); digitalWrite(13, OFF); delay(1000); }