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getAlarmState()
This function returns whether the specified alarm is turned on or off. Once turned on, it is reset either through a call to setAlarmState() or setAlarm().
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MCP7940_Class MCP7940; // Create an instance of the MCP7940
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void setup() {
Serial.begin(SERIAL_SPEED);
while (!MCP7940.begin()) { // Initialize RTC communications
Serial.println("Unable to find MCP7940. Checking again in 1 second.");
delay(1000);
} // of loop until device is located
uint8_t alarmType;
MCP7940.setAlarm(0,7,DateTime(2017,8,5,18,30,0)); // Alarm 0 triggers at 18:30:00 on 2017-08-05
while (!MCP7940.getAlarmState(0)); // loop until the alarm 0 is triggered
MCP7940.setAlarmState(0,false); // Turn off the alarm
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Overview
Installation
Class Instantiation
DateTime Helper Class
TimeSpan Helper Class
begin()
deviceStatus()
deviceStart()
deviceStop()
now()
adjust()
calibrate()
calibrateOrAdjust()
getCalibrationTrim()
weekdayRead()
weekdayWrite()
readRAM()
writeRAM()
setMFP()
getMFP()
setAlarm()
getAlarm()
setAlarmState()
setAlarmPolarity()
getAlarmState()
clearAlarm()
getSQWSpeed()
setSQWSpeed()
setSQWState()
getPowerFail()
clearPowerFail()
getBattery()
setBattery()
getPowerDown()
getPowerUp()
readEUI() {00/01/02 only}
writEUI() {00/01/02 only}
-none-
SetAndCalibrate.ino
SetAlarms.ino
SquareWave.ino
TestBatteryBackup.ino
SimpleBatteryBackup.ino
AccessMemory.ino
RegressionTests.ino