9 years, 4 months ago.

Hello Ceri,

I apologize for not posting an example code. I started this library as a set of functions in a simple mbed project. After a while, I decided to convert this set to a library. I am posting the example code below. This code was tested and works adequately. Note that after connecting to my wifi router, I wait for 8 seconds before getting the module IP. When I tried to get it right after connection, I got an "Error" reply. If I wait for about 8 seconds, I can get the IP without errors.

As for PC communication, I am still working on that. So far, I only send commands to the module, and get its reply into a string.l Then, I just print the reply string to the PC serial port (through USB). So far I am not accessing web pages or sockets. I am just checking if I connect to my network and getting the local (router-given) IP address.

As I mentioned in my original post, new commands will be added soon. Until there, you may use the SendCMD function to send any command to the module, passing the command string without the 0x0D-0x0A characters (these are added by the function).

I also recommend to look for recent posts at MCU on Eclipse, where Erich Styger has been working on these modules.

The program was tested with a FRDM-KL25 board, but it should work OK with other platforms. Just remember to change Tx and Rx pins for the ESP8266 object, according to the UART pins at the board you are using.

I hope it helps. Feel free to contact me for more information.

Cheers,

Antonio

#include "mbed.h"
#include <string>
#include "ESP8266.h"

// RUN THIS EXAMPLE WITH A SERIAL TERMINAL AT 115200bps


// Objects
Serial pc(USBTX, USBRX);
ESP8266 esp(PTE0, PTE1); // Tx and Rx, on MCU point of view

// Global variables
char snd[255], rcv[1000]; // Strings for sending and receiving commands / data / replies

int main() {
    pc.baud(115200);
    pc.printf("START\r\n");
    wait(3);
    
    pc.printf("Reset ESP\r\n"); // Resetting ESP
    esp.Reset();
    esp.RcvReply(rcv, 400);
    pc.printf("%s", rcv);
    wait(2);

    pc.printf("Sending AT\r\n"); // Sending "AT" to get "OK" reply
    strcpy(snd, "AT");
    esp.SendCMD(snd);
    esp.RcvReply(rcv, 400);
    pc.printf("%s", rcv);
    wait(2);

    pc.printf("Set mode to AP\r\n");
    esp.SetMode(1);
    esp.RcvReply(rcv, 1000);
    pc.printf("%s", rcv);
    
    pc.printf("Receiving Wifi List\r\n");
    esp.GetList(rcv);
    pc.printf("%s", rcv);
    
    pc.printf("Connecting to AP\r\n");
    esp.Join("MyAP", "MyPwd"); // REPLACE "MyAP" and "MyPwd" by your network name and password, keeping commas
    esp.RcvReply(rcv, 1000);
    pc.printf("%s", rcv);
    wait(8);

    pc.printf("Getting IP\r\n");
    esp.GetIP(rcv);
    pc.printf("%s", rcv);
    pc.printf("Setting multiple connections\r\n");
    esp.SetMultiple();
    esp.RcvReply(rcv, 1000);
    pc.printf("%s", rcv);
    
    pc.printf("THE END");
    while(1);
}