//www.themonoclecat.de
//26. Nov. 2014
//User interface for ESP8266
//For commands in text block form go to very bottom
int buf;
int timer = 0;
void setup()
{
 Serial.begin(9600); //Communication with computer
 Serial.setTimeout(1000);
 Serial1.begin(9600); //Communication with ESP8266
 Serial1.setTimeout(5000); //This is very important for the Serial.find() function
}
void nl() //== newline; you need these at the end of every command
{
 Serial1.write(13); //same as pressing ctrl+J in 'screen'
 Serial1.write(10); //same as pressing ctrl+M in 'screen'
}
void qu() //== a -> " <- symbol; you need this because sadly the Serial.print() command won't send a "
{
 Serial1.write(34);
}
void waitdebug() //Print incoming and wait till over
{
 wait();
 while (Serial1.available() > 0)
 {
 delay(10);
 Serial.write(Serial1.read());
 }
}
void wait()
{
 while (Serial1.available() == 0)
 {
 if (timer >= 10)
 {
 timer = 0;
 Serial.print(".");
 }
 timer += 1;
 delay(100);
 }
}
void loop()
{
 while (Serial.available() > 0)
 {
 buf = Serial.read();
 switch (buf)
 {
 case '@': //much information about the ESP8266
 Serial.print("Own IP: ");
 Serial1.print("AT+CIFSR");
 nl();
 waitdebug();
 Serial.print("Parameters of own AP: ");
 Serial1.print("AT+CWSAP?");
 nl();
 waitdebug();
 Serial.print("Connected devices' IP: ");
 Serial1.print("AT+CWLIF");
 nl();
 waitdebug();
 Serial.print("The AP the ESP is connected to: ");
 Serial1.print("AT+CWJAP?");
 nl();
 waitdebug();
 Serial.print("Connection status: ");
 Serial1.print("AT+CIPSTATUS");
 nl();
 break;

 case '$': //Connect to Router
 Serial1.print("AT+CWMODE=3");
 nl();
 waitdebug();
 Serial1.print("AT+CWJAP=");
 qu();
 Serial1.print("---enter ssid here--");
 qu();
 Serial1.print(",");
 qu();
 Serial1.print("---enter password here---");
 qu();
 nl();
 if (Serial1.find("OK") == true)
 {
 //Connected to Wifi
 Serial.println("--Connected--");
 }
 else
 {
 Serial.println("--Not Connected!--");
 }
 break;

 case 13:
 nl();
 break;

 case '#': //Manual
 Serial.println("Own commands: '$'=Connect to Wifi AP '@'=Get lots of info");
 Serial.println("Commands (Just copy and paste into screen:");
 Serial.println("Baud rate: AT+CIOBAUD? (check) AT+CIOBAUD=57600 (set)");
 Serial.println("Wifi mode: AT+CWMODE? AT+CWMODE=3 [1= Sta, 2= AP, 3=both, Sta is the default");
 Serial.println(" mode of router, AP is a normal mode for devices]");
 Serial.println(" ");
 Serial.println("List the APs: AT+CWLAP");
 Serial.println("Join AP: AT+CWJAP=<ssid>,<p@$$word>");
 Serial.println("Join AP: AT+CWJAP=<ssid>,<p@$$word>");
 Serial.println("Current AP: AT+CWJAP?");
 Serial.println("Address: AT+CIFSR");
 Serial.println(" ");
 Serial.println("Set parameters of AP: AT+ CWSAP= <ssid>,<p@$$wordMin8Char>,<chl>, <ecn>");
 Serial.println("Current parameters: AT+CWSAP?");
 Serial.println(" ");
 Serial.println("Check joined devices' IP: AT+CWLIF");
 Serial.println(" ");
 Serial.println("Set TCP mutiple connection: AT+CIPMUX=<mode> AT+ CIPMUX? [0 for single connection 1 for multiple connection]");
 Serial.println("Set as TCP server: AT+ CIPSERVER= <mode>[,<port] [mode 0 to close server mode, mode 1 to open; port = port;");
 Serial.println(" ---type IP:Port into browser to connect--- eg. turn on as a TCP server: AT+CIPSERVER=1,8888,");
 Serial.println(" check the self server IP address: AT+CIFSR=? ]");
 break;

 default:
 Serial1.write(buf);
 break;
 }
 }

 while (Serial1.available() > 0)
 {
 Serial.write(Serial1.read());
 }
}
/* screen /dev/tty.usbmodem453811
Commands (Just copy and paste into screen):

Baud rate: AT+CIOBAUD? (check) AT+CIOBAUD=9600 (set)
Wifi mode: AT+CWMODE? AT+CWMODE=3 [1= Sta, 2= AP, 3=both, Sta is the default
 mode of router, AP is a normal mode for devices]
List the APs: AT+CWLAP
Join AP: AT+CWJAP=<ssid>,<p@$$word>
Current AP: AT+CWJAP?
Address: AT+CIFSR
Set parameters of AP: AT+CWSAP=<ssid>,<p@$$wordMin8Char>,<chl>,<ecn> ---- Current: AT+CWSAP="ESP8266 Wifi SoC","teensyyy",7,3
Current parameters: AT+CWSAP?
Check joined devices' IP: AT+CWLIF
TCP:
Set mutiple connection: AT+CIPMUX=<mode> AT+ CIPMUX? [0 for single connection 1 for multiple connection]
Set as server: AT+ CIPSERVER= <mode>[,<port] [mode 0 to close server mode, mode 1 to open; port = port;
 ---type IP:Port into browser to connect--- eg. turn on as a TCP server: AT+CIPSERVER=1,8888,
 check the self server IP address: AT+CIFSR=? ]
*/