ARDUINO MEGA + ESP8266 with AT commands
Posted: Wed Dec 18, 2019 5:21 pmHi,
I'm adding wifi access to an ARDUINO MEGA project. I would like to use ESP8266 both in AP and CLIENT MODE. For CLIENT mode I want to choose a specific PORT (in spite of the usual 80). The code under reported WORKS ONLY if I maintain the PORT 80. If I change the PORT number to any other number than 80 after the first "AT+CIPSEND" the connection is closed (and I cannot BUILD the page). Where is the mistake? SOLUTIONS? Thanks.
p.
For sending the pages to ESP I use the following code:
I'm adding wifi access to an ARDUINO MEGA project. I would like to use ESP8266 both in AP and CLIENT MODE. For CLIENT mode I want to choose a specific PORT (in spite of the usual 80). The code under reported WORKS ONLY if I maintain the PORT 80. If I change the PORT number to any other number than 80 after the first "AT+CIPSEND" the connection is closed (and I cannot BUILD the page). Where is the mistake? SOLUTIONS? Thanks.
p.
Code: Select all
void setup() {
Serial.begin(9600);
Serial3.begin(115200); // esp's baud rate might be different
sendData("AT+RST\r\n",2000,DEBUG); // reset module
Serial.println("Set mode 1/3");// was 1
sendData("AT+CWMODE=3\r\n",1000,DEBUG); // configure as both mode 3000
Serial.println("Setting for multiple connection");
sendData("AT+CIPMUX=1\r\n",1000,DEBUG); // configure for multiple connections 2000
Serial.println("define fixed IP");
sendData("AT+CIPSTA=\"192.168.178.151\"\r\n",1000,DEBUG); //SET STA IP ADDED
Serial.println("joining AP");
//sendData("AT+CWJAP=\"DWR-116_PR\",\"1234_abcd_!_9876\"\r\n", 8000, DEBUG); // connect to wifi 8000
sendData("AT+CWJAP=\"FRITZ!Box7490_PR\",\"1234_abcd_!_9876\"\r\n", 10000, DEBUG); // connect to wifi 8000
Serial.println("Testing CIFSR");
sendData("AT+CIFSR\r\n",2000,DEBUG); // get ip address 7000
Serial.println("Set AP name, pw");
sendData("AT+CWSAP=\"ESP8266\",\"1234567890\",5,3,1,0\r\n",1000,DEBUG); // turn on server on port 80 1000
Serial.println("set port for server");
sendData("AT+CIPSERVER=1,80\r\n",1000,DEBUG); // turn on server on port 80 1000
}
For sending the pages to ESP I use the following code:
Code: Select all
String webpage = "<h1>PR Smart Home</h1><button>LED1</button><button>LED2</button><button>LED3</button>"
"<button>LED4</button><button>LED5</button>";
String cipSend = "AT+CIPSEND=";
cipSend += connectionId;
cipSend += ",";
cipSend +=webpage.length();
//cipSend += ",192.168.178.151,5556";
cipSend +="\r\n";
sendData(cipSend,1000,DEBUG);
sendData(webpage,1000,DEBUG);