Simple detection for LE910-NA1 modules
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Diff: Cellular/Cellular.h
- Revision:
- 1:f155d94d6f3a
- Parent:
- 0:830c436480e3
- Child:
- 2:10e72dce251d
--- a/Cellular/Cellular.h Thu May 15 22:16:46 2014 +0000 +++ b/Cellular/Cellular.h Mon May 19 12:34:32 2014 -0500 @@ -1,4 +1,315 @@ #ifndef CELLULAR_H #define CELLULAR_H -#endif \ No newline at end of file +#include <string> +#include <vector> + +#include "IPStack.h" +#include "MTSBufferedIO.h" +#include "mbed.h" + +namespace mts +{ + +/** This is a class for communicating with a Cellular radio device. +* This class supports three main types of cellular radio interactions including: +* configuration and status processing, SMS processing, and TCP/UDP Socket +* data connections. This class also inherits from IPStack providing a common set of commands +* for communication devices that support IP protocols. It is also integrated with the standard +* mbed Sockets package and can therefore be used seamlessly with clients and services built +* on top of this interface already within the mbed library. +* +* For all examples below please change Pin Names to match your hardware configuration. +* It also assumes the use of RTS/CTS hardware handshaking using GPIOs. To disable this +* you will need to change settings on the radio module and and use the MTSSerial class +* instead of MTSSerialFlowControl. +* +* The following set of example code demonstrates how to send and receive configuration and +* status AT commands with the radio, create a data connection and test it: +* @code +* #include "mbed.h" +* #include "mtech.h" +* +* using namespace mts; +* +* main() { +* //Setup serial interface to radio +* MTSSerialFlowControl* serial = new MTSSerialFlowControl(YOUR_TXD, YOUR_RXD, YOUR_RTS, YOUR_CTS); +* serial->baud(YOUR_BAUD); +* +* //Setup Cellular class - Select your radio type +* Cellular* cellular = new UniversalIP(); +* //Cellular cellular = new TelitIP(); +* cellular->init(serial); +* +* //Run status and configuration commands +* printf("\n\r////Start Status and Configuration Commands////\n\r"); +* printf("Command Test: %s\n\r", getCodeNames(cellular->test()).c_str()); +* wait(1); +* printf("Signal Strength: %d\n\r", cellular->getSignalStrength()); +* wait(1); +* printf("Registration State: %s\n\r", Cellular::getRegistrationNames(cellular->getRegistration()).c_str()); +* wait(1); +* printf("Send Basic Command (AT): %s\n\r", getCodeNames(cellular->sendBasicCommand("AT", 1000)).c_str()); +* wait(1); +* printf("Send Command (AT+CSQ): %s\n\r", cellular->sendCommand("AT+CSQ", 1000).c_str()); +* wait(1); +* +* //Start Test +* printf("\n\r////Start Network Connectivity Test////\n\r"); +* printf("Set APN: %s\n\r", getCodeNames(cellular->setApn("wap.cingular")).c_str()); //Use APN from service provider!!! +* +* //Setup a data connection +* printf("Attempting to Connect, this may take some time...\n\r"); +* while (!cellular->connect()) { +* printf("Failed to connect... Trying again.\n\r"); +* wait(1); +* } +* printf("Connected to the Network!\n\r"); +* +* //Try pinging default server "8.8.8.8" +* printf("Ping Valid: %s\n\r", cellular->ping() ? "true" : "false"); +* +* //Perform HTTP transfer over TCP socket connection +* printf("Open Connection: %s\n\r", cellular->open("echo.200please.com", 80, IPStack::TCP) ? "Success" : "Failure"); +* printf("Performing HTTP GET on echo.200please.com\n\r"); +* string httpGET = "GET / HTTP/1.1\r\nHost: echo.200please.com\r\nConnection: keep-alive\r\n\r\n"; +* printf("Wrote %d of %d bytes\n\r", cellular->write(httpGET.data(), httpGET.size(), 2000), httpGET.size()); +* char buffer[256]; +* buffer[255] = '\0'; +* printf("Read %d bytes\n\r", cellular->read(buffer, 255, 2000)); +* printf("HTTP Response:\n\r %s", buffer); +* wait(1); +* printf("Close Connection: %s\n\r", cellular->close() ? "Success" : "Failure"); +* +* //Disconnect from network +* printf("Disconnecting...\n\r"); +* cellular->disconnect(); +* printf("Is Connected: %s\n\r", cellular->isConnected() ? "True" : "False"); +* +* printf("End Program\n\r"); +* } +* @endcode +* +* The following set of example code demonstrates how process SMS messages: +* @code +* #include "mbed.h" +* #include "mtech.h" +* +* using namespace mts; +* +* main() { +* //Setup serial interface to radio +* MTSSerialFlowControl* serial = new MTSSerialFlowControl(YOUR_TXD, YOUR_RXD, YOUR_RTS, YOUR_CTS); +* serial->baud(YOUR_BAUD); +* +* //Setup Cellular class +* //Setup Cellular class - Select your radio type +* Cellular* cellular = new UniversalIP(); +* //Cellular cellular = new TelitIP(); +* cellular->init(serial); +* +* //Start test +* printf("AT Test: %s\n\r", getCodeNames(cellular->test()).c_str()); +* +* //Waiting for network registration +* printf("Checking Network Registration, this may take some time...\n\r"); +* while (cellular->getRegistration() != Cellular::REGISTERED) { +* printf("Still waiting... Checking again.\n\r"); +* wait(1); +* } +* printf("Connected to the Network!\n\r"); +* +* //Send SMS Message +* Code code; +* std::string sMsg("Hello from Multi-Tech MBED!"); +* std::string sPhoneNum("16128675309"); //Put your phone number here or leave Jenny's... +* +* printf("Sending message [%s] to [%s]\r\n", sMsg.c_str(), sPhoneNum.c_str()); +* code = cellular->sendSMS(sPhoneNum, sMsg); +* +* if(code != SUCCESS) { +* printf("Error during SMS send [%s]\r\n", getCodeNames(code).c_str()); +* } else { +* printf("Success!\r\n"); +* } +* +* //Try and receive SMS messages +* //To determine your radio's phone number send yourself an SMS and check the received # +* printf("Checking Received Messages\r\n"); +* while (true) { +* std::vector<Cellular::Sms> vSms = cellular->getReceivedSms(); +* printf("\r\n"); +* for(unsigned int i = 0; i < vSms.size(); i++) { +* printf("[%d][%s][%s][%s]\r\n", i, vSms[i].timestamp.c_str(), +* vSms[i].phoneNumber.c_str(), vSms[i].message.c_str()); +* } +* wait(10); +* } +* } +* @endcode +*/ + +class Cellular : public IPStack +{ +public: + // Class ping paramter constants + static const unsigned int PINGDELAY = 3; //Time to wait on each ping for a response before timimg out (seconds) + static const unsigned int PINGNUM = 4; //Number of pings to try on ping command + + /// Enumeration for different cellular radio types. + enum Radio { + NA, E1, G2, EV2, H4, EV3, H5 + }; + + /// An enumeration of radio registration states with a cell tower. + enum Registration { + NOT_REGISTERED, REGISTERED, SEARCHING, DENIED, UNKNOWN, ROAMING + }; + + /** This structure contains the data for an SMS message. + */ + struct Sms { + /// Message Phone Number + std::string phoneNumber; + /// Message Body + std::string message; + /// Message Timestamp + std::string timestamp; + }; + + /** This method initializes the object with the underlying radio + * interface to use. Note that this function MUST be called before + * any other calls will function correctly on a Cellular object. Also + * note that MTSBufferedIO is abstract, so you must use one of + * its inherited classes like MTSSerial or MTSSerialFlowControl. + * + * @param io the buffered io interface that is attached to the cellular + * radio. + * @param DCD this is the dcd signal from the radio. If attached the + * the pin must be passed in here for this class to operate correctly. + * The default is not connected. + * @param DTR this is the dtr signal from the radio. If attached the + * the pin must be passed in here for this class to operate correctly. + * The default is not connected. + * @returns true if the init was successful, otherwise false. + */ + virtual bool init(MTSBufferedIO* io) = 0; + + /** A method for testing command access to the radio. This method sends the + * command "AT" to the radio, which is a standard radio test to see if you + * have command access to the radio. The function returns when it receives + * the expected response from the radio. + * + * @returns the standard AT Code enumeration. + */ + virtual Code test(); + + /** A method for getting the signal strength of the radio. This method allows you to + * get a value that maps to signal strength in dBm. Here 0-1 is Poor, 2-9 is Marginal, + * 10-14 is Ok, 15-19 is Good, and 20+ is Excellent. If you get a result of 99 the + * signal strength is not known or not detectable. + * + * @returns an integer representing the signal strength. + */ + virtual int getSignalStrength(); + + /** This method is used to check the registration state of the radio with the cell tower. + * If not appropriatley registered with the tower you cannot make a cellular connection. + * + * @returns the registration state as an enumeration type. + */ + virtual Registration getRegistration(); + + /** This method is used to set the radios APN if using a SIM card. Note that the APN + * must be set correctly before you can make a data connection. The APN for your SIM + * can be obtained by contacting your cellular service provider. + * + * @param the APN as a string. + * @returns the standard AT Code enumeration. + */ + virtual Code setApn(const std::string& apn) = 0; + + /** This method is used to set the DNS which enables the use of URLs instead + * of IP addresses when making a socket connection. + * + * @param the DNS server address as a string in form xxx.xxx.xxx.xxx. + * @returns the standard AT Code enumeration. + */ + virtual Code setDns(const std::string& primary, const std::string& secondary = "0.0.0.0") = 0; + + /** This method is used to send an SMS message. Note that you cannot send an + * SMS message and have a data connection open at the same time. + * + * @param phoneNumber the phone number to send the message to as a string. + * @param message the text message to be sent. + * @returns the standard AT Code enumeration. + */ + virtual Code sendSMS(const std::string& phoneNumber, const std::string& message); + + /** This method is used to send an SMS message. Note that you cannot send an + * SMS message and have a data connection open at the same time. + * + * @param sms an Sms struct that contains all SMS transaction information. + * @returns the standard AT Code enumeration. + */ + virtual Code sendSMS(const Sms& sms); + + /** This method retrieves all of the SMS messages currently available for + * this phone number. + * + * @returns a vector of existing SMS messages each as an Sms struct. + */ + virtual std::vector<Cellular::Sms> getReceivedSms(); + + /** This method can be used to remove/delete all received SMS messages + * even if they have never been retrieved or read. + * + * @returns the standard AT Code enumeration. + */ + virtual Code deleteAllReceivedSms(); + + /** This method can be used to remove/delete all received SMS messages + * that have been retrieved by the user through the getReceivedSms method. + * Messages that have not been retrieved yet will be unaffected. + * + * @returns the standard AT Code enumeration. + */ + virtual Code deleteOnlyReceivedReadSms(); + + //Cellular Radio Specific + /** A method for sending a generic AT command to the radio. Note that you cannot + * send commands and have a data connection at the same time. + * + * @param command the command to send to the radio without the escape character. + * @param timeoutMillis the time in millis to wait for a response before returning. + * @param esc escape character to add at the end of the command, defaults to + * carriage return (CR). Does not append any character if esc == 0. + * @returns all data received from the radio after the command as a string. + */ + virtual std::string sendCommand(const std::string& command, unsigned int timeoutMillis, char esc = CR) = 0; + + /** A method for sending a basic AT command to the radio. A basic AT command is + * one that simply has a response of either OK or ERROR without any other information. + * Note that you cannot send commands and have a data connection at the same time. + * + * @param command the command to send to the radio without the escape character. + * @param timeoutMillis the time in millis to wait for a response before returning. + * @param esc escape character to add at the end of the command, defaults to + * carriage return (CR). + * @returns the standard Code enumeration. + */ + virtual Code sendBasicCommand(const std::string& command, unsigned int timeoutMillis, char esc = CR) = 0; + + /** A static method for getting a string representation for the Registration + * enumeration. + * + * @param code a Registration enumeration. + * @returns the enumeration name as a string. + */ + static std::string getRegistrationNames(Registration registration); +}; + +} + +#endif /* CELLULAR_H */ \ No newline at end of file