private async void Page_Loaded(object sender, RoutedEventArgs e)
{
// Display the version
txtVersion.Text = string.Format("MeterMate {0} V{1}.{2}", Model, MajorVersion, MinorVersion);
// Display the Copyright notice
txtCopyright.Text = "Swiftsoft - Copyright © 2016-2017";
// Show that the handset by default is not connected
ledHandsetConnected.LedOn = false;
ledEmr3Connected.LedOn = false;
// Create timer to expire immediately and then every 12 seconds thereafter
timer = new Timer(TimerExpired, null, 0, 12000);
SerialDevice meterMatePort = null;
SerialDevice bluetoothPort = null;
try
{
// meterMatePort = await GetSerialPort("prolific usb-to-serial comm port");
//meterMatePort = await GetSerialPort("usb serial converter");
meterMatePort = await GetSerialPort("USB-RS232 Cable");
if (meterMatePort == null)
{
meterMatePort = await GetSerialPort("usb serial converter");
}
//meterMatePort = await GetSerialPort("usb <-> serial");
//meterMatePort = await GetSerialPort("cp2102 usb to uart bridge controller");
bluetoothPort = await GetSerialPort("nfo");
if (bluetoothPort == null)
{
bluetoothPort = await GetSerialPort("minwinpc");
}
}
catch (NullReferenceException)
{
//txtStatus.Text = "Could not obtain serial port.";
}
// Start the EMR3 thread
Emr3 emr3 = new Emr3(meterMatePort, this);
emr3.Start();
// Start the PDA thread
Pda pda = new Pda(bluetoothPort, this);
pda.Start();
}
public static async Task ProcessMessage(string message)
{
using (var releaser = await myLock.LockAsync())
{
try
{
// Construct default (error) JSON.
string json = "{\"Command\": \"\", \"Result\": -99}";
// Check EMR3 thread is running. If it is
// not then wait until it is.
while (!Emr3.IsRunning())
{
await Task.Delay(250);
}
// Split the message around commas.
string[] parts = message.Split(new char[] { ',' });
// Check there is at least one part
if (parts.Length >= 1)
{
switch (parts[0])
{
case "BL":
// Bootloader.
//SystemUpdate.AccessBootloader();
break;
case "Gv":
// Get Version.
await ParentPage.ResetTimer();
json = string.Format("{{\"Command\": \"Gv\", \"Result\": 0, \"Version\": {0}.{1}, \"Model\":\"{2}\"}}", MainPage.MajorVersion, MainPage.MinorVersion, MainPage.Model);
break;
case "Gf":
// Get features.
json = Emr3.GetFeatures();
break;
case "Gt":
// Get temperature.
json = await Emr3.GetTemperature();
break;
case "Gs":
// Get status.
json = await Emr3.GetStatus();
break;
case "Gpl":
// Get preset litres.
json = await Emr3.GetPreset();
break;
case "Grl":
// Get realtime litres.
json = await Emr3.GetRealtime();
break;
case "Gtc":
// Get transaction count
json = await Emr3.GetTranCount();
break;
case "Gtr":
// Get transaction record
await ParentPage.ResetTimer();
if (parts.Length == 2)
{
json = await Emr3.GetTran(parts[1]);
}
break;
case "Spl":
// Set polling.
if (parts.Length == 2)
{
json = Emr3.SetPolling(parts[1]);
}
break;
case "Sp":
// Set preset.
await ParentPage.ResetTimer();
if (parts.Length == 2)
{
json = await Emr3.SetPreset(parts[1]);
}
break;
case "NOP":
await ParentPage.ResetTimer();
json = "{\"Command\": \"NOP\", \"Result\": 0}";
break;
default:
json = string.Format("{{\"Command\": \"{0}\", \"Result\": -99}}", parts[0]);
break;
}
}
// Send reply to PDA.
await SendMessage(json);
}
catch (Exception ex)
{
Debug.WriteLine("PDA.ProcessMessage: Exception " + ex.Message);
}
}
}