static void ModemInitTimer(object state)
{
// If we don't detect "Call Ready" from the modem, set the baud rate to the correct setting
seeedStudioGSM gprs = (seeedStudioGSM)state;
gprs.SIM900_SetBaudRate(gsmbaudrate);
InitTimeout = true;
}
static void Cellular_thread()
{
seeedStudioGSM gprs = new seeedStudioGSM(gsmcomport, gsmbaudrate);
seeedStudioGSM.SIM900_TogglePower(); // If this actually powers down the modem we catch the power down message and TogglePower again through the DataHandler
Timer ModemInitTimeout = new Timer(ModemInitTimer, gprs, 30000, 0); // Timeout for modem to return "Call Ready". If it doesn't we assume the modem is set to the wrong baud rate and send baud rate command
int requestedSwitch;
string requestedAction;
bool WhitelistExists = false;
bool MasterCellExists = false;
bool MasterPasswordExists = false;
string MasterPassword = "";
string[] Whitelist = { "" };
string MasterCell = "";
#if (XBEE)
XBee xbee = new XBee(XBeeComport, XBeeBaudRate);
#endif
#if (LCD)
lcdMessageLine1 = System.Text.Encoding.UTF8.GetBytes(" Powering up");
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes(" Modem");
#endif
while (InitTimeout == false && seeedStudioGSM.ModemReady == false)
{
Thread.Sleep(100); // Wait for either the modem to report "Call Ready" or for 30 seconds to pass
}
ModemInitTimeout.Dispose(); // Dispose of timer even if never fired.
#if (LCD)
lcdMessageLine1 = System.Text.Encoding.UTF8.GetBytes(" Initializing");
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes(" Modem");
#endif
gprs.SIM900_FirmwareVersion();
gprs.SIM900_SignalQuality();
gprs.SIM900_SetTime();
// Display signal quality on LCD
#if (LCD)
lcdMessageLine1 = System.Text.Encoding.UTF8.GetBytes("Signal Quality:");
#endif
// Excellent Signal
if ((seeedStudioGSM.SignalStrength >= 20) && (seeedStudioGSM.SignalStrength <= 31))
{
Debug.Print("Signal: Excellent");
#if (LCD)
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes(" Excellent");
#endif
}
// Good Signal
else if ((seeedStudioGSM.SignalStrength >= 13) && (seeedStudioGSM.SignalStrength <= 19))
{
Debug.Print("Signal: Good");
#if (LCD)
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes(" Good");
#endif
}
// Poor Signal
else if ((seeedStudioGSM.SignalStrength >= 0) && (seeedStudioGSM.SignalStrength <= 12))
{
Debug.Print("Signal: Poor");
#if (LCD)
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes(" Poor");
#endif
}
// No Signal
else if (seeedStudioGSM.SignalStrength == 99)
{
Debug.Print("No Signal");
#if (LCD)
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes(" None");
#endif
}
else
{
Debug.Print("Unknown Signal");
#if (LCD)
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes(" Unknown");
#endif
}
gprs.InitializeSMS();
gprs.DeleteAllSMS();
// File containing Cellphone number to send initialization SMS too
if (File.Exists(@"SD\settings\MasterCell.txt"))
{
MasterCell = FileTools.ReadString("settings\\MasterCell.txt").TrimEnd(';');
MasterCellExists = true;
}
// File containing Master password to allow whitelist additions
if (File.Exists(@"SD\settings\MasterPassword.txt"))
{
MasterPassword = FileTools.ReadString("settings\\MasterPassword.txt").TrimEnd(';');
MasterPasswordExists = true;
}
// File containing cellphone numbers to accept commands from, all others are ignored, splitting on + sign since we get a single string back from the file read
if (File.Exists(@"SD\settings\Whitelist.txt"))
{
Whitelist = FileTools.ReadString("settings\\Whitelist.txt").Split(';');
WhitelistExists = true;
}
// Send SMS to default number saying we are up!
if (MasterCellExists)
{
//gprs.SendSMS(MasterCell, "Remote switch controller operational at " + DateTime.Now.ToString());
}
while (true)
{
if (seeedStudioGSM.LastMessage > 0)
{
gprs.ReadSMS(seeedStudioGSM.LastMessage);
gprs.DeleteAllSMS();
if (File.Exists(@"SD\Temp\SMS.cmd"))
{
string ReplySMS = "";
string[] command = FileTools.ReadString("Temp\\SMS.cmd").Split(';');
File.Delete(@"SD\Temp\SMS.cmd");
Debug.Print("Commands: " + command[0] + " " + command[1]);
if (WhitelistExists && MasterCellExists && MasterPasswordExists) // We have a whitelist, master phone and password otherwise first message is new master phone
{
if (CheckNumberWhitelist(command[0], Whitelist)) // Make sure incoming message was sent from allowed number
{
if (command[1].Substring(0, 8).ToUpper() == "PASSWORD" && MasterCell == command[0])
{
byte[] master = SHA.computeSHA1(System.Text.Encoding.UTF8.GetBytes(command[1].Trim().Substring(9))); //Encode Master password
MasterPassword = ""; // Clear variable before calculating new password
foreach (byte b in master)
{
MasterPassword = MasterPassword + b.ToString();
}
File.Delete(@"SD\settings\MasterPassword.txt");
FileTools.New("MasterPassword.txt", "settings", MasterPassword); // Encode master password and add to whitelist
gprs.SendSMS(command[0], "New password " + command[1].Substring(9) + " saved");
}
#if (WEB)
else if (command[1].ToUpper() == "SHOWIP" && MasterCell == command[0]) // Return current IP if requested
{
gprs.SendSMS(command[0], "IP Address: " + Microsoft.SPOT.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces()[0].IPAddress);
}
#endif
else
{
if (command[1].Trim().ToUpper().Substring(0, command[1].Trim().Length - 1) == "ALL")
{
requestedSwitch = 0;
}
else
{
requestedSwitch = int.Parse(command[1].Trim().ToUpper().Substring(0, command[1].Trim().Length - 1));
}
requestedAction = command[1].Trim().ToUpper().Substring(command[1].Trim().Length - 1, 1);
if (requestedAction == "+")
{
if (requestedSwitch == 0) // 0 = ALL
{
for (int i = 0; i < NumSwitches; i++)
{
Relay.On(i + 1);
SWState[i] = "On ";
}
#if (XBEE)
for (int i = 0; i < NumXbeeSwitches; i++)
{
xbee.SetDigitalOutput(XBeeAddress[i], XBeeCommand.ADio0Configuration, true);
SWState[i + 4] = "On ";
}
#endif
ReplySMS = DateTime.Now.ToString() + ": All switches turned On.";
}
else if (requestedSwitch <= 4) // Turn on numbered switch
{
Relay.On(requestedSwitch);
ReplySMS = DateTime.Now.ToString() + ": Switch " + requestedSwitch + " was turned On";
SWState[requestedSwitch - 1] = "On ";
}
else if (requestedSwitch > 4) // Turn on Xbee numbered switch
{
xbee.SetDigitalOutput(XBeeAddress[requestedSwitch - 5], XBeeCommand.ADio0Configuration, true);
Debug.Print("Xbee: " + XBeeAddress[requestedSwitch - 5]);
ReplySMS = DateTime.Now.ToString() + ": Xbee Switch " + requestedSwitch + " was turned On";
SWState[requestedSwitch - 1] = "On ";
}
else
{
ReplySMS = DateTime.Now.ToString() + ": Error turning On Switch " + requestedSwitch;
}
}
else if (requestedAction == "-")
{
if (requestedSwitch == 0)
{
for (int i = 0; i < NumSwitches; i++)
{
Relay.Off(i + 1);
SWState[i] = "Off ";
}
#if (XBEE)
for (int i = 0; i < NumXbeeSwitches; i++)
{
xbee.SetDigitalOutput(XBeeAddress[i], XBeeCommand.ADio0Configuration, false);
SWState[i + 4] = "Off ";
}
#endif
ReplySMS = DateTime.Now.ToString() + ": All switches turned Off.";
}
else if (requestedSwitch <= 4) // Turn off numbered switch
{
Relay.Off(requestedSwitch);
ReplySMS = DateTime.Now.ToString() + ": Switch " + requestedSwitch + " was turned Off";
SWState[requestedSwitch - 1] = "Off ";
}
#if (XBEE)
else if (requestedSwitch > 4) // Turn off Xbee numbered switch
{
xbee.SetDigitalOutput(XBeeAddress[requestedSwitch - 5], XBeeCommand.ADio0Configuration, false);
Debug.Print("Xbee: " + XBeeAddress[requestedSwitch - 5]);
ReplySMS = DateTime.Now.ToString() + ": Xbee Switch " + requestedSwitch + " was turned Off";
SWState[requestedSwitch - 1] = "Off ";
}
#endif
else
{
ReplySMS = DateTime.Now.ToString() + ": Error turning Off Switch " + requestedSwitch;
}
}
else if (requestedAction == "?")
{
if (Relay.State(requestedSwitch))
{
ReplySMS = DateTime.Now.ToString() + ": Switch " + requestedSwitch + " is On";
}
else
{
ReplySMS = DateTime.Now.ToString() + ": Switch " + requestedSwitch + " is Off";
}
}
else
{
ReplySMS = "";
Debug.Print(DateTime.Now.ToString() + ": Unknown Command: " + command[1] + " from " + command[0]);
gprs.SendSMS(command[0], DateTime.Now.ToString() + ": Unknown command from " + command[0] + ": " + command[1]);
}
if (ReplySMS.Length > 0)
{
gprs.SendSMS(command[0], ReplySMS);
}
}
}
else
{
string GivenPassword = "";
byte[] master = SHA.computeSHA1(System.Text.Encoding.UTF8.GetBytes(command[1])); //Encode given Master password
foreach (byte b in master)
{
GivenPassword = GivenPassword + b.ToString();
}
Debug.Print("Given: " + GivenPassword + " Master: " + MasterPassword);
if (GivenPassword == MasterPassword)
{
FileTools.Add("Whitelist.txt", "settings", command[0]); // Add new phone to whitelist
Whitelist = FileTools.ReadString("settings\\Whitelist.txt").Split(';');
gprs.SendSMS(command[0], "You have been added to the whitelist");
}
else
{
Debug.Print(command[0] + " not in whitelist, message ignored");
}
}
}
else // No whitelist file, incoming message is from new master
{
if (command[1].IndexOf(" ") == -1) // Checks if supplied password contains a space
{
FileTools.New("MasterCell.txt", "settings", command[0]); // Add master number
MasterCell = FileTools.ReadString("settings\\MasterCell.txt").TrimEnd(';');
MasterCellExists = true;
FileTools.New("Whitelist.txt", "settings", command[0]); // Add new master to whitelist
Whitelist = FileTools.ReadString("settings\\Whitelist.txt").Split(';');
WhitelistExists = true;
byte[] master = SHA.computeSHA1(System.Text.Encoding.UTF8.GetBytes(command[1])); //Encode Master password
foreach (byte b in master)
{
MasterPassword = MasterPassword + b.ToString();
}
Debug.Print("Master Password: "******"MasterPassword.txt", "settings", MasterPassword); // Add encoded password to file
MasterPassword = FileTools.ReadString("settings\\MasterPassword.txt").TrimEnd(';');
MasterPasswordExists = true;
gprs.SendSMS(command[0], "New master phone set, password " + command[1] + " saved");
}
else
{
gprs.SendSMS(command[0], "Passwords can not contain spaces, try again");
}
}
}
}
#if (LCD)
lcdMessageLine1 = System.Text.Encoding.UTF8.GetBytes("SW1:" + SWState[0] + "SW2:" + SWState[1]);
lcdMessageLine2 = System.Text.Encoding.UTF8.GetBytes("SW3:" + SWState[2] + "SW4:" + SWState[3]);
#endif
Thread.Sleep(1000);
}
}
