First Commit

libraries/DS3231/examples/DS3231_oscillator_test/DS3231_oscillator_test.ino

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+/*
+oscillator_test.pde
+Eric Ayars
+4/11
+
+Test/demo of oscillator routines for a DS3231 RTC.
+
+Use a scope after loading this to check if things are
+working as they should.
+
+*/
+
+#include <DS3231.h>
+#include <Wire.h>
+
+DS3231 myRTC;
+byte j;
+bool on = false;
+
+void setup() {
+	// Start the I2C interface
+	Wire.begin();
+	// Start the serial interface
+	Serial.begin(57600);
+}
+
+void loop() {
+	for (j=0;j<4;j++) {
+		// invert state of 32kHz oscillator.
+		on = !on;
+		myRTC.enable32kHz(on);
+		// Turn on oscillator pin, frequency j
+		myRTC.enableOscillator(true, false, j);
+		delay(4000);
+	}
+	// So... The 32kHz oscillator (pin 1) will turn on or off once each 2s,
+	// and the oscillator out pin (pin 3) will cycle through frequencies.
+}