private async void SetDCRelayAsync(bool on)
{
string result;
if (on)
{
speechSynthesizer.Speak("Turning the DC Bus On at" + DateTime.Now.ToShortTimeString());
speechSynthesizer.Speak("Please stand By.....");
result = await netDuino.DenergizeRelay1();
if (result != "Success")
{
speechSynthesizer.Speak("DC Bus activation failed!");
}
}
else
{
speechSynthesizer.Speak("Turning the DC Bus Off at" + DateTime.Now.ToShortTimeString());
speechSynthesizer.Speak("Please stand By.....");
result = await netDuino.EnergizeRelay1();
if (result != "Success")
{
speechSynthesizer.Speak("DC Bus de-activation failed!");
}
}
}
/// <summary>
/// Sends commands to set the current state of the NetDuino Relay R1 (DC Relay) based on the
/// configured OnTime and OffTime values
/// </summary>
/// <returns> returns a TimeSpan that tells us when we need to call this method again</returns>
private async Task <TimeSpan> SetNetDuinoDCRelay()
{
string result;
var alert = new AlertSender();
// First calculate the DC Bus On Time value using Today's Sunset time &
// given on Time offset value:
DateTime sunriseToday, sunsetToday;
SunTimes.GetSunTimes(out sunriseToday, out sunsetToday);
var onTime = sunsetToday - new TimeSpan(0, 0, dcBusOnTimeOffset, 0);
var offTime = dcBusOffTime;
if (onTime.TimeOfDay > offTime.TimeOfDay)
{
LogMessage("Invalid Configuration!. Please check the On/Off Time values");
return(TimeSpan.MinValue);
}
// time to wait for next state change trigger
TimeSpan stateChangeInterval;
if (DateTime.Now.TimeOfDay < onTime.TimeOfDay)
{
// we are in daytime
// energize the relay 1 to turn lights off and set the interval for next state change
speechSynthesizer.Speak("Turning the DC relay off. Please standby...");
result = await netDuino.EnergizeRelay1();
stateChangeInterval = onTime.TimeOfDay - DateTime.Now.TimeOfDay;
}
else if (DateTime.Now.TimeOfDay >= onTime.TimeOfDay && DateTime.Now.TimeOfDay <= offTime.TimeOfDay)
{
// we are in the onTime..
// de-energize relay1 to turn the lights on and set them to turn off at offTime
speechSynthesizer.Speak("Turning the DC relay On. Please standby...");
result = await netDuino.DenergizeRelay1();
stateChangeInterval = offTime.TimeOfDay - DateTime.Now.TimeOfDay;
alert.SendSMSAlert("Alert",
$"DC Bus powered on at {DateTime.Now.ToLongTimeString()}. Today's Sunset Time: {sunsetToday.ToLongTimeString()}");
}
else
{
// Current time is between OffTime and midnight
// energize the relays to turn the light off and set the interval to onTime + 1 Day
speechSynthesizer.Speak("Turning the DC relay off. Please standby...");
result = await netDuino.EnergizeRelay1();
stateChangeInterval = (new TimeSpan(1, 0, 0, 0) + onTime.TimeOfDay) - DateTime.Now.TimeOfDay;
}
if (result == "Success")
{
if (changeStateR1Timer == null)
{
//This is the first time this method is executed
// set up the timer to trigger next time the Relay state change is needed:
changeStateR1Timer = new Timer(OnChangeStateR1Timer, null, stateChangeInterval, Timeout.InfiniteTimeSpan);
}
}
else
{
// here we deal with the failure...
// set the TimeSpan to min value to return an indication of failure and log appropriate messages and alerts
stateChangeInterval = TimeSpan.MinValue;
var @address = NetDuinoPlus.DeviceIPAddress.Substring(7, 13);
var msg =
"Netduino has failed to respond to Energize/Denergize DC relay request(s) dispatched to address: " + @address + "in a timely fashion" +
$"{Environment.NewLine}Event Date & Time: {DateTime.Now.ToLongDateString()} {DateTime.Now.ToLongTimeString()} {Environment.NewLine}" +
$"{Environment.NewLine}Please check Netduino and make sure that it is still online!";
LogMessage(alert.SendEmailAlert("Atert: Energize/Denergize Relay request to NetDuino Failed", bodyText: msg)
? "Alert dispatch via Email completed successfully"
: "Attempt to send an email alert failed!");
LogMessage(alert.SendSMSAlert("Atert: Energize/Denergize Relay request to NetDuino Failed", msg)
? "Alert dispatch via SMS completed successfully"
: "Attempt to send an SMS alert failed!");
}
return(stateChangeInterval);
}