How-to on dronecell/APM further to ur video?

Sinamics

Hi Frejus.. Im fine thank you.. Quite busy these days with homework. uhh ;) That is quite interesting code you refer to.. Im using while loop when accumulating serial data into character / byte in C. I have not study line by line so this might be incorrect but try something like this.. Can look deeper into this code later... while (mySerial.available() > 0) { char b=mySerial.read();

frejus

Thanks. I tried with the instruction "while", same result. Looks like the Arduino is not communicating with the APM I leave you with your homeworks, come back when you can :-) Also to note : I have stable power between APM RX and APM ground (4,30) and unstable power between APM TX and ground (goes wild between 3.8 and 4.8v). Cheers

Sinamics

If the there are no serial data between APM and Arduino, then this loop will never run.. while (mySerial.available() > 0) Remeber, APM Telemetry port are disabled when USB cable are connected!

frejus

Perfectly right, but I am not connected to the USB :-) I added the reset and power up / down cables.

Sinamics

Hi When you start this script, are you able to initialize the GSM module at the very beginning? Serial.begin wont be configured if not. Serial.begin(57600); // Start Serial port for communication with Ardupilot

frejus

Hi, Thx for your question. I am able to lighten a led right after that line, so it goes over it, but I do not now whether answer on that line gives an OK or not. How could I check that ? Some "if (){}" test ?

Sinamics

You could just add a serial write and look in Arduino Terminal if you get the respons. while(!isReady){ if(mySerial.available()){ String b=mySerial.readString(); if(b.indexOf("+CREG: 1") > 0 || b.indexOf("+CREG: 2") > 0){ isReady = true; //while(!sendATCommand("AT+IPR=57600","OK",100)); // Uncomment to set Modem Baudrate //while(!sendATCommand("AT&W","OK",100)); // Uncomment to write settings to non-volatile memory while(!sendATCommand("AT V1 E1 X1 S0=0","OK",100)); // Set error response and do not pickup on ring while(!sendATCommand("AT+CREG=2","OK",100)); // Set various notice messages and parameters while(!sendATCommand("AT+CMEE=2","OK",100)); while(!sendATCommand("AT+CR=1","OK",100)); while(!sendATCommand("AT+CRC=1","OK",100)); while(!sendATCommand("AT+CSNS=4","OK",100)); while(!sendATCommand("AT+CSMINS=1","OK",100)); while(!sendATCommand("AT+CSCLK=0","OK",100)); while(!sendATCommand("AT+CIURC=1","OK",100)); while(!sendATCommand("AT+CGEREP=2","OK",100)); while(!sendATCommand("AT+CIPMUX=0","OK",100)); // Single channel communication (ie only one socket can be opened) while(!sendATCommand("AT+CIPMODE=1","OK",100)); // Transparent bridge mode while(!sendATCommand("AT+CIPCCFG=8,10,400,0","OK",100)); // GPRS params mySerial.print("AT+CMUX=0,0,4,32768,10,3,30,10,2\r"); // GPRS/IP params delay(2000); while(!sendATCommand("AT+CGATT?","OK",1000)); // Make sure GPRS is Attached while(!sendATCommand("AT+CSTT= \"zain\",\"\",\"\"","OK",1000)); // AT+CSTT="APN","username","password" - login to service provider/carrier while(!sendATCommand("AT+CIICR","OK",1000)); // Connect! while(!sendATCommand("AT+CIFSR",".",100)); // Get IP address (for info only); while(!sendATCommand("AT+CLPORT=\"UDP\",8888","OK",100)); // Prep UDP Port 8888 while(!sendATCommand("AT+CIPSTART=\"UDP\",\"drone.dyndns.biz\",8888","OK",1000)); // AT+CIPSTART="protocol","ip address or domain","port #" Serial.begin(57600); // Start Serial port for communication with Ardupilot Serial.write("Serial initialized and OK"); digitalWrite(LED,HIGH); // Turn on All Good LED digitalWrite(ERR,LOW); // Turn off Warning LED delay(1000); digitalWrite(LED,LOW); } else { digitalWrite(ERR,HIGH); // Turn on Warning LED digitalWrite(LED,LOW); // Turn off All Good LED } }

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