SquareWave.ino
Sample Arduino sketch to demonstrate setting and using the two alarms on the MCP7940. For a detailed breadboard setup description see the SetAndCalibrate.ino page.
The sketch sets the multifunction pin MFP to a square wave with 1Hz (once a second) and links the MFP pin to the Arduino's on board LED to get it to blink every second. The square wave is turned off after 10 seconds.
