Revision 0:57cec3469a80, committed 2015-10-22

Comitter:

jhunter029

Date:

Thu Oct 22 16:18:21 2015 +0000

Commit message:

Hello World demo for the Adafruit ESP8266 Huzzah Wi-Fi Module

Changed in this revision

diff -r 000000000000 -r 57cec3469a80 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Oct 22 16:18:21 2015 +0000
@@ -0,0 +1,244 @@
+#include "mbed.h"
+ 
+Serial pc(USBTX, USBRX);
+Serial esp(p28, p27); // tx, rx
+DigitalOut reset(p26);
+DigitalOut led1(LED1);
+DigitalOut led4(LED4);
+Timer t;
+ 
+int  count,ended,timeout;
+char buf[2024];
+char snd[1024];
+ 
+char ssid[32] = "SwagInABag";     // enter WiFi router ssid inside the quotes
+char pwd [32] = "yoloswag"; // enter WiFi router password inside the quotes
+ 
+void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate();
+ void dev_recv()
+{
+    led1 = !led1;
+    while(esp.readable()) {
+        pc.putc(esp.getc());
+    }
+}
+ 
+void pc_recv()
+{
+    led4 = !led4;
+    while(pc.readable()) {
+        esp.putc(pc.getc());
+    }
+}
+ 
+ 
+int main()
+{
+    reset=0; //hardware reset for 8266
+    pc.baud(9600);  // set what you want here depending on your terminal program speed
+    pc.printf("\f\n\r-------------ESP8266 Hardware Reset-------------\n\r");
+    wait(0.5);
+    reset=1;
+    timeout=2;
+    getreply();
+ 
+    esp.baud(9600);   // change this to the new ESP8266 baudrate if it is changed at any time.
+ 
+    //ESPsetbaudrate();   //******************  include this routine to set a different ESP8266 baudrate  ******************
+ 
+    ESPconfig();        //******************  include Config to set the ESP8266 configuration  ***********************
+ 
+ 
+ 
+    pc.attach(&pc_recv, Serial::RxIrq);
+    esp.attach(&dev_recv, Serial::RxIrq);
+    
+    // continuosly get AP list and IP
+    while(1) {
+        sleep();
+    }
+ 
+}
+ 
+// Sets new ESP8266 baurate, change the esp.baud(xxxxx) to match your new setting once this has been executed
+void ESPsetbaudrate()
+{
+    strcpy(snd, "AT+CIOBAUD=115200\r\n");   // change the numeric value to the required baudrate
+    SendCMD();
+}
+ 
+//  +++++++++++++++++++++++++++++++++ This is for ESP8266 config only, run this once to set up the ESP8266 +++++++++++++++
+void ESPconfig()
+{
+
+    wait(5);
+    pc.printf("\f---------- Starting ESP Config ----------\r\n\n");
+        strcpy(snd,".\r\n.\r\n");
+    SendCMD();
+        wait(1);
+    pc.printf("---------- Reset & get Firmware ----------\r\n");
+    strcpy(snd,"node.restart()\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Get Version ----------\r\n");
+    strcpy(snd,"print(node.info())\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(3);
+ 
+    // set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station)
+    pc.printf("\n---------- Setting Mode ----------\r\n");
+    strcpy(snd, "wifi.setmode(wifi.STATION)\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(2);
+ 
+   
+ 
+    pc.printf("\n---------- Listing Access Points ----------\r\n");
+    strcpy(snd, "function listap(t)\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "for k,v in pairs(t) do\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "print(k..\" : \"..v)\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "end\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "end\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "wifi.sta.getap(listap)\r\n");
+    SendCMD();
+    wait(1);
+        timeout=15;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Connecting to AP ----------\r\n");
+    pc.printf("ssid = %s   pwd = %s\r\n",ssid,pwd);
+    strcpy(snd, "wifi.sta.config(\"");
+    strcat(snd, ssid);
+    strcat(snd, "\",\"");
+    strcat(snd, pwd);
+    strcat(snd, "\")\r\n");
+    SendCMD();
+    timeout=10;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(5);
+ 
+    pc.printf("\n---------- Get IP's ----------\r\n");
+    strcpy(snd, "print(wifi.sta.getip())\r\n");
+    SendCMD();
+    timeout=3;
+    getreply();
+    pc.printf(buf);
+ 
+    wait(1);
+ 
+    pc.printf("\n---------- Get Connection Status ----------\r\n");
+    strcpy(snd, "print(wifi.sta.status())\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buf);
+ 
+    pc.printf("\n\n\n  If you get a valid (non zero) IP, ESP8266 has been set up.\r\n");
+    pc.printf("  Run this if you want to reconfig the ESP8266 at any time.\r\n");
+    pc.printf("  It saves the SSID and password settings internally\r\n");
+    wait(10);
+        
+        
+          pc.printf("\n---------- Setting up http server ----------\r\n");
+    strcpy(snd, "srv=net.createServer(net.TCP)\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "srv:listen(80,function(conn)\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "conn:on(\"receive\",function(conn,payload)\r\n");
+        SendCMD();
+        wait(1);
+        strcpy(snd, "print(payload)\r\n");
+        SendCMD();
+        wait(1);
+        
+        strcpy(snd, "conn:send(\"<!DOCTYPE html>\")\r\n");
+        SendCMD();
+      wait(1);
+        
+        strcpy(snd, "conn:send(\"<html>\")\r\n");
+        SendCMD();
+      wait(1);
+        
+        strcpy(snd, "conn:send(\"<h1> Hi James, NodeMcu.</h1>\")\r\n");
+      SendCMD();
+        wait(1);
+        
+        strcpy(snd, "conn:send(\"<h2> test</h2>\")\r\n");
+        SendCMD();
+        wait(1);
+        
+        strcpy(snd, "conn:send(\"</html>\")\r\n");
+    SendCMD();
+    wait(1);
+        
+        strcpy(snd, "end)\r\n");
+    SendCMD();
+    wait(1);
+        
+        strcpy(snd, "conn:on(\"sent\",function(conn) conn:close() end)\r\n");
+    SendCMD();
+    wait(1);
+        strcpy(snd, "end)\r\n");
+    SendCMD();
+    wait(1);
+        timeout=17;
+    getreply();
+    pc.printf(buf);
+        pc.printf("\r\nDONE");
+}
+ 
+void SendCMD()
+{
+    esp.printf("%s", snd);
+}
+ 
+void getreply()
+{
+    memset(buf, '\0', sizeof(buf));
+    t.start();
+    ended=0;
+    count=0;
+    while(!ended) {
+        if(esp.readable()) {
+            buf[count] = esp.getc();
+            count++;
+        }
+        if(t.read() > timeout) {
+            ended = 1;
+            t.stop();
+            t.reset();
+        }
+    }
+}
+ 
+    
\ No newline at end of file

diff -r 000000000000 -r 57cec3469a80 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Oct 22 16:18:21 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/4f6c30876dfa
\ No newline at end of file