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Hello World demo for the Adafruit ESP8266 Huzzah Wi-Fi module and mbed LPC1768
Dependencies: mbed
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
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
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