at-command

Please be kind enough to have a look at the following code. I am using QextSerialPort to access ports #include <qstring.h> #include <qdebug.h> #include <QCoreApplication> int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); QList<QextPortInfo> ports = QextSerialEnumerator::getPorts(); QextSerialPort *port; QString portName; int counter=0; //Navigate through ports untill you find huwawei USB dongle while(counter<ports.size()) { portName = ports[counter].portName; QString productId= ports[counter].productID; QString physicalName = ports[counter].physName; QString vendorId = ports

I`m trying to send AT-command via COM-port, but reseived only the same command. package SerialConnections; import jssc.SerialPort; import jssc.SerialPortEvent; import jssc.SerialPortEventListener; import jssc.SerialPortException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import static ru.telemetria.qa.utils.Utilities.waitTime; public class M234Serial { private static Logger log = LoggerFactory.getLogger(M234Serial.class); private SerialPort serialPort; private byte[] receivedData; private boolean isReceived; public M234Serial() throws Exception { serialPort = new SerialPort(

I have written a program that comminucates serially with a USB 3g Modem. When I open the port and write the AT command AT To the modem, I get the normal "OK" response and can read it using a serial read function. In a terminal, when I write the command AT^SYSINFO I get the following response: ^SYSINFO:#,#,#,#,#,# With the #'s being numbers. However, when I attempt to write the same command serially using my program, I read only this reponse: AT^SYSINFO I try to then read another line of incoming data, but no data comes. Can anyone help me with this? There is information in the ^SYSINFO message

I have a gsm-modem and plc, plc sees a modem (I use a *.lib and functional block "openPort"), but I don't understand how write in modem an "at command", for example, "ate0". First, to increase your understanding of AT commands in general, read the V. 250 specification . That will go a long way in making you an AT command expert. Then for the actual implementation, I do not know codesys, so the following is pseudo code of the structure you should have for handling AT commands: the_modem = openPort(); ... // start sending ATE0 writePort(the_modem, "ATE0\r"); do { line = readLinePort(the_modem);

I am working with a GSM SIM900 and an Arduino Uno. I am using AT commands for the SIM900. I am successfully getting data from GET requests and showing on the serial monitor, but after the AT+HTTPREAD command I want to store data into a variable. How can I do this? I am getting a JSON Object from the web server and I want to get the Status property from that object and save it into a variable. #include <SoftwareSerial.h> SoftwareSerial gprsSerial(2,3); void setup() { gprsSerial.begin(9600); Serial.begin(9600); Serial.println("Con"); delay(2000); Serial.println("Done!..."); gprsSerial.flush();