Hello,
I need a little help with a problem.
I want to make a webserver that will reply to a GET request from a page(android app) with a Json format.
The Json will show the values of 3 sensors.
The hardware is like this : Arduino Mega, wifi module ESP8266 connected on serial1.
I need to say that i'm very low on programing but here is what i have done until now :
strcpy(html,"HTTP/1.1 200 OK");
strcpy(command,"AT+CIPSEND=0,25\r\n");
Serial1.print(command);
getReply( 2000 );
Serial1.print(html);
getReply( 2000 );
strcpy(html,"Content-Type: application/json");
strcpy(command,"AT+CIPSEND=0,50\r\n");
Serial1.print(command);
getReply( 2000 );
Serial1.print(html);
getReply( 2000 );
strcpy(html,"Connection: close");
strcpy(command,"AT+CIPSEND=0,50\r\n");
Serial1.print(command);
getReply( 2000 );
Serial1.print(html);
getReply( 2000 );
strcpy(html,"");
strcpy(command,"AT+CIPSEND=0,1\r\n");
Serial1.print(command);
getReply( 2000 );
Serial1.print(html);
getReply( 2000 );
strcpy(html,"{"StatusALL:":"OK","Room1:":"100","TEXT:":"200"}");
strcpy(command,"AT+CIPSEND=0,50\r\n");
Serial1.print(command);
getReply( 2000 );
Serial1.print(html);
getReply( 2000 );
// close the connection
Serial1.print( "AT+CIPCLOSE=0\r\n" );
getReply( 1500 );
On serial monitor i get OK for each line until the line with the json string where i get an error message.
Can you tell me what is wrong ?
I found on the internet a library ESP8266wifi ( made for arduino ) not for the esp8266 (WiFi) but i can not find any examples for creating an webserver with the ESP connected to an AP.
One other way that i found for the Json is with the library ArduinoJson.h but i don't know how to print the result to the esp8266.
The library has something like this : root.printTo(Serial); or : root.prettyPrintTo(Serial);
PLS HELP