A library for talking to Multi-Tech's Cellular SocketModem Devices.
Dependents: M2X_dev axeda_wrapper_dev MTS_M2x_Example1 MTS_Cellular_Connect_Example ... more
cellular/Cellular.cpp
- Committer:
- jengbrecht
- Date:
- 2013-12-09
- Revision:
- 0:563b70517320
- Child:
- 4:6561c9128c6f
File content as of revision 0:563b70517320:
#ifndef CELLULAR_CPP #define CELLULAR_CPP #include "Cellular.h" Cellular::Cellular(MTSBufferedIO* io) : io(io) { } Cellular::~Cellular() { } Cellular::Code Cellular::ATTest() { return sendBasicCommand("AT", 1000); } Cellular::Code Cellular::echoOff(bool state) { if (state) { return sendBasicCommand("ATE0", 1000); } else { return sendBasicCommand("ATE1", 1000); } } int Cellular::getSignalStrength() { string response = sendCommand("AT+CSQ", 1000); if (response.find("OK") == string::npos) { return -1; } int start = response.find(':'); int stop = response.find(',', start); string signal = response.substr(start + 2, stop - start - 2); int value; sscanf(signal.c_str(), "%d", &value); return value; } Cellular::Registration Cellular::getRegistration() { string response = sendCommand("AT+CREG?", 1000); if (response.find("OK") == string::npos) { return UNKNOWN; } int start = response.find(','); int stop = response.find(' ', start); string regStat = response.substr(start + 1, stop - start - 1); int value; sscanf(regStat.c_str(), "%d", &value); switch (value) { case 0: return NOT_REGISTERED; case 1: return REGISTERED; case 2: return SEARCHING; case 3: return DENIED; case 4: return UNKNOWN; case 5: return ROAMING; } } int Cellular::connect(string host, int port) { // Set the Server Address string hostCmd = "AT#TCPSERV=1,\""; hostCmd.append(host); hostCmd.append("\""); if (sendBasicCommand(hostCmd, 1000) != OK) { return -1; } // Set the Server Port string portCmd = "AT#TCPPORT=1,\""; char tmp[7]; if (sprintf(tmp, "%d", port) < 0) { return -1; } portCmd.append(string(tmp)); portCmd.append("\""); if (sendBasicCommand(portCmd, 1000) != OK) { return -1; } // Try and Connect string response = sendCommand("AT#OTCP=1", 2000); if (response.find("Ok_Info_WaitingForData") != string::npos) { return 0; } else { return -1; } } Cellular::Code Cellular::sendBasicCommand(string command, int timeoutMillis, ESC_CHAR esc) { string response = sendCommand(command, timeoutMillis, esc); if (response.size() == 0) { return NO_RESPONSE; } else if (response.find("OK") != string::npos) { return OK; } else if (response.find("ERROR") != string::npos) { return ERROR; } else { return FAILURE; } } Cellular::Code Cellular::sendSMS(string phoneNumber, string message) { Code code = sendBasicCommand("AT+CMGF=1", 1000); if (code != OK) { return code; } string cmd = "AT+CMGS=\"+"; cmd.append(phoneNumber); cmd.append("\""); string response1 = sendCommand(cmd, 1000); if (response1.find('>') == string::npos) { return NO_RESPONSE; } wait(.2); string response2 = sendCommand(message, 4000, CTRL_Z); printf("SMS Response: %s\n", response2); if (response2.find("+CMGS:") == string::npos) { return FAILURE; } return OK; } string Cellular::sendCommand(string command, int timeoutMillis, ESC_CHAR esc) { int size = command.size() + 1; char cmd[size]; strcpy(cmd, command.c_str()); if (esc == CR) { cmd[size -1] = '\r'; } else if (esc == CTRL_Z) { cmd[size -1] = 0x1A; } io->rxClear(); io->txClear(); int status = io->write(cmd, size); int available = io->rxAvailable(); int previous = -1; int timer = 0; while (available != previous && timer < timeoutMillis) { wait(.1); timer = timer + 100; previous = available; available = io->rxAvailable(); } char tmp[available]; io->read(tmp, available); return string(tmp); } #endif /* CELLULAR_CPP */