Hello World demo for the Adafruit ESP8266 Huzzah Wi-Fi module and mbed LPC1768
Dependencies: mbed
main.cpp@0:57cec3469a80, 2015-10-22 (annotated)
- Committer:
- jhunter029
- Date:
- Thu Oct 22 16:18:21 2015 +0000
- Revision:
- 0:57cec3469a80
Hello World demo for the Adafruit ESP8266 Huzzah Wi-Fi Module
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jhunter029 | 0:57cec3469a80 | 1 | #include "mbed.h" |
jhunter029 | 0:57cec3469a80 | 2 | |
jhunter029 | 0:57cec3469a80 | 3 | Serial pc(USBTX, USBRX); |
jhunter029 | 0:57cec3469a80 | 4 | Serial esp(p28, p27); // tx, rx |
jhunter029 | 0:57cec3469a80 | 5 | DigitalOut reset(p26); |
jhunter029 | 0:57cec3469a80 | 6 | DigitalOut led1(LED1); |
jhunter029 | 0:57cec3469a80 | 7 | DigitalOut led4(LED4); |
jhunter029 | 0:57cec3469a80 | 8 | Timer t; |
jhunter029 | 0:57cec3469a80 | 9 | |
jhunter029 | 0:57cec3469a80 | 10 | int count,ended,timeout; |
jhunter029 | 0:57cec3469a80 | 11 | char buf[2024]; |
jhunter029 | 0:57cec3469a80 | 12 | char snd[1024]; |
jhunter029 | 0:57cec3469a80 | 13 | |
jhunter029 | 0:57cec3469a80 | 14 | char ssid[32] = "SwagInABag"; // enter WiFi router ssid inside the quotes |
jhunter029 | 0:57cec3469a80 | 15 | char pwd [32] = "yoloswag"; // enter WiFi router password inside the quotes |
jhunter029 | 0:57cec3469a80 | 16 | |
jhunter029 | 0:57cec3469a80 | 17 | void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate(); |
jhunter029 | 0:57cec3469a80 | 18 | void dev_recv() |
jhunter029 | 0:57cec3469a80 | 19 | { |
jhunter029 | 0:57cec3469a80 | 20 | led1 = !led1; |
jhunter029 | 0:57cec3469a80 | 21 | while(esp.readable()) { |
jhunter029 | 0:57cec3469a80 | 22 | pc.putc(esp.getc()); |
jhunter029 | 0:57cec3469a80 | 23 | } |
jhunter029 | 0:57cec3469a80 | 24 | } |
jhunter029 | 0:57cec3469a80 | 25 | |
jhunter029 | 0:57cec3469a80 | 26 | void pc_recv() |
jhunter029 | 0:57cec3469a80 | 27 | { |
jhunter029 | 0:57cec3469a80 | 28 | led4 = !led4; |
jhunter029 | 0:57cec3469a80 | 29 | while(pc.readable()) { |
jhunter029 | 0:57cec3469a80 | 30 | esp.putc(pc.getc()); |
jhunter029 | 0:57cec3469a80 | 31 | } |
jhunter029 | 0:57cec3469a80 | 32 | } |
jhunter029 | 0:57cec3469a80 | 33 | |
jhunter029 | 0:57cec3469a80 | 34 | |
jhunter029 | 0:57cec3469a80 | 35 | int main() |
jhunter029 | 0:57cec3469a80 | 36 | { |
jhunter029 | 0:57cec3469a80 | 37 | reset=0; //hardware reset for 8266 |
jhunter029 | 0:57cec3469a80 | 38 | pc.baud(9600); // set what you want here depending on your terminal program speed |
jhunter029 | 0:57cec3469a80 | 39 | pc.printf("\f\n\r-------------ESP8266 Hardware Reset-------------\n\r"); |
jhunter029 | 0:57cec3469a80 | 40 | wait(0.5); |
jhunter029 | 0:57cec3469a80 | 41 | reset=1; |
jhunter029 | 0:57cec3469a80 | 42 | timeout=2; |
jhunter029 | 0:57cec3469a80 | 43 | getreply(); |
jhunter029 | 0:57cec3469a80 | 44 | |
jhunter029 | 0:57cec3469a80 | 45 | esp.baud(9600); // change this to the new ESP8266 baudrate if it is changed at any time. |
jhunter029 | 0:57cec3469a80 | 46 | |
jhunter029 | 0:57cec3469a80 | 47 | //ESPsetbaudrate(); //****************** include this routine to set a different ESP8266 baudrate ****************** |
jhunter029 | 0:57cec3469a80 | 48 | |
jhunter029 | 0:57cec3469a80 | 49 | ESPconfig(); //****************** include Config to set the ESP8266 configuration *********************** |
jhunter029 | 0:57cec3469a80 | 50 | |
jhunter029 | 0:57cec3469a80 | 51 | |
jhunter029 | 0:57cec3469a80 | 52 | |
jhunter029 | 0:57cec3469a80 | 53 | pc.attach(&pc_recv, Serial::RxIrq); |
jhunter029 | 0:57cec3469a80 | 54 | esp.attach(&dev_recv, Serial::RxIrq); |
jhunter029 | 0:57cec3469a80 | 55 | |
jhunter029 | 0:57cec3469a80 | 56 | // continuosly get AP list and IP |
jhunter029 | 0:57cec3469a80 | 57 | while(1) { |
jhunter029 | 0:57cec3469a80 | 58 | sleep(); |
jhunter029 | 0:57cec3469a80 | 59 | } |
jhunter029 | 0:57cec3469a80 | 60 | |
jhunter029 | 0:57cec3469a80 | 61 | } |
jhunter029 | 0:57cec3469a80 | 62 | |
jhunter029 | 0:57cec3469a80 | 63 | // Sets new ESP8266 baurate, change the esp.baud(xxxxx) to match your new setting once this has been executed |
jhunter029 | 0:57cec3469a80 | 64 | void ESPsetbaudrate() |
jhunter029 | 0:57cec3469a80 | 65 | { |
jhunter029 | 0:57cec3469a80 | 66 | strcpy(snd, "AT+CIOBAUD=115200\r\n"); // change the numeric value to the required baudrate |
jhunter029 | 0:57cec3469a80 | 67 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 68 | } |
jhunter029 | 0:57cec3469a80 | 69 | |
jhunter029 | 0:57cec3469a80 | 70 | // +++++++++++++++++++++++++++++++++ This is for ESP8266 config only, run this once to set up the ESP8266 +++++++++++++++ |
jhunter029 | 0:57cec3469a80 | 71 | void ESPconfig() |
jhunter029 | 0:57cec3469a80 | 72 | { |
jhunter029 | 0:57cec3469a80 | 73 | |
jhunter029 | 0:57cec3469a80 | 74 | wait(5); |
jhunter029 | 0:57cec3469a80 | 75 | pc.printf("\f---------- Starting ESP Config ----------\r\n\n"); |
jhunter029 | 0:57cec3469a80 | 76 | strcpy(snd,".\r\n.\r\n"); |
jhunter029 | 0:57cec3469a80 | 77 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 78 | wait(1); |
jhunter029 | 0:57cec3469a80 | 79 | pc.printf("---------- Reset & get Firmware ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 80 | strcpy(snd,"node.restart()\r\n"); |
jhunter029 | 0:57cec3469a80 | 81 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 82 | timeout=5; |
jhunter029 | 0:57cec3469a80 | 83 | getreply(); |
jhunter029 | 0:57cec3469a80 | 84 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 85 | |
jhunter029 | 0:57cec3469a80 | 86 | wait(2); |
jhunter029 | 0:57cec3469a80 | 87 | |
jhunter029 | 0:57cec3469a80 | 88 | pc.printf("\n---------- Get Version ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 89 | strcpy(snd,"print(node.info())\r\n"); |
jhunter029 | 0:57cec3469a80 | 90 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 91 | timeout=4; |
jhunter029 | 0:57cec3469a80 | 92 | getreply(); |
jhunter029 | 0:57cec3469a80 | 93 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 94 | |
jhunter029 | 0:57cec3469a80 | 95 | wait(3); |
jhunter029 | 0:57cec3469a80 | 96 | |
jhunter029 | 0:57cec3469a80 | 97 | // set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station) |
jhunter029 | 0:57cec3469a80 | 98 | pc.printf("\n---------- Setting Mode ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 99 | strcpy(snd, "wifi.setmode(wifi.STATION)\r\n"); |
jhunter029 | 0:57cec3469a80 | 100 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 101 | timeout=4; |
jhunter029 | 0:57cec3469a80 | 102 | getreply(); |
jhunter029 | 0:57cec3469a80 | 103 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 104 | |
jhunter029 | 0:57cec3469a80 | 105 | wait(2); |
jhunter029 | 0:57cec3469a80 | 106 | |
jhunter029 | 0:57cec3469a80 | 107 | |
jhunter029 | 0:57cec3469a80 | 108 | |
jhunter029 | 0:57cec3469a80 | 109 | pc.printf("\n---------- Listing Access Points ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 110 | strcpy(snd, "function listap(t)\r\n"); |
jhunter029 | 0:57cec3469a80 | 111 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 112 | wait(1); |
jhunter029 | 0:57cec3469a80 | 113 | strcpy(snd, "for k,v in pairs(t) do\r\n"); |
jhunter029 | 0:57cec3469a80 | 114 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 115 | wait(1); |
jhunter029 | 0:57cec3469a80 | 116 | strcpy(snd, "print(k..\" : \"..v)\r\n"); |
jhunter029 | 0:57cec3469a80 | 117 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 118 | wait(1); |
jhunter029 | 0:57cec3469a80 | 119 | strcpy(snd, "end\r\n"); |
jhunter029 | 0:57cec3469a80 | 120 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 121 | wait(1); |
jhunter029 | 0:57cec3469a80 | 122 | strcpy(snd, "end\r\n"); |
jhunter029 | 0:57cec3469a80 | 123 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 124 | wait(1); |
jhunter029 | 0:57cec3469a80 | 125 | strcpy(snd, "wifi.sta.getap(listap)\r\n"); |
jhunter029 | 0:57cec3469a80 | 126 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 127 | wait(1); |
jhunter029 | 0:57cec3469a80 | 128 | timeout=15; |
jhunter029 | 0:57cec3469a80 | 129 | getreply(); |
jhunter029 | 0:57cec3469a80 | 130 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 131 | |
jhunter029 | 0:57cec3469a80 | 132 | wait(2); |
jhunter029 | 0:57cec3469a80 | 133 | |
jhunter029 | 0:57cec3469a80 | 134 | pc.printf("\n---------- Connecting to AP ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 135 | pc.printf("ssid = %s pwd = %s\r\n",ssid,pwd); |
jhunter029 | 0:57cec3469a80 | 136 | strcpy(snd, "wifi.sta.config(\""); |
jhunter029 | 0:57cec3469a80 | 137 | strcat(snd, ssid); |
jhunter029 | 0:57cec3469a80 | 138 | strcat(snd, "\",\""); |
jhunter029 | 0:57cec3469a80 | 139 | strcat(snd, pwd); |
jhunter029 | 0:57cec3469a80 | 140 | strcat(snd, "\")\r\n"); |
jhunter029 | 0:57cec3469a80 | 141 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 142 | timeout=10; |
jhunter029 | 0:57cec3469a80 | 143 | getreply(); |
jhunter029 | 0:57cec3469a80 | 144 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 145 | |
jhunter029 | 0:57cec3469a80 | 146 | wait(5); |
jhunter029 | 0:57cec3469a80 | 147 | |
jhunter029 | 0:57cec3469a80 | 148 | pc.printf("\n---------- Get IP's ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 149 | strcpy(snd, "print(wifi.sta.getip())\r\n"); |
jhunter029 | 0:57cec3469a80 | 150 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 151 | timeout=3; |
jhunter029 | 0:57cec3469a80 | 152 | getreply(); |
jhunter029 | 0:57cec3469a80 | 153 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 154 | |
jhunter029 | 0:57cec3469a80 | 155 | wait(1); |
jhunter029 | 0:57cec3469a80 | 156 | |
jhunter029 | 0:57cec3469a80 | 157 | pc.printf("\n---------- Get Connection Status ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 158 | strcpy(snd, "print(wifi.sta.status())\r\n"); |
jhunter029 | 0:57cec3469a80 | 159 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 160 | timeout=5; |
jhunter029 | 0:57cec3469a80 | 161 | getreply(); |
jhunter029 | 0:57cec3469a80 | 162 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 163 | |
jhunter029 | 0:57cec3469a80 | 164 | pc.printf("\n\n\n If you get a valid (non zero) IP, ESP8266 has been set up.\r\n"); |
jhunter029 | 0:57cec3469a80 | 165 | pc.printf(" Run this if you want to reconfig the ESP8266 at any time.\r\n"); |
jhunter029 | 0:57cec3469a80 | 166 | pc.printf(" It saves the SSID and password settings internally\r\n"); |
jhunter029 | 0:57cec3469a80 | 167 | wait(10); |
jhunter029 | 0:57cec3469a80 | 168 | |
jhunter029 | 0:57cec3469a80 | 169 | |
jhunter029 | 0:57cec3469a80 | 170 | pc.printf("\n---------- Setting up http server ----------\r\n"); |
jhunter029 | 0:57cec3469a80 | 171 | strcpy(snd, "srv=net.createServer(net.TCP)\r\n"); |
jhunter029 | 0:57cec3469a80 | 172 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 173 | wait(1); |
jhunter029 | 0:57cec3469a80 | 174 | strcpy(snd, "srv:listen(80,function(conn)\r\n"); |
jhunter029 | 0:57cec3469a80 | 175 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 176 | wait(1); |
jhunter029 | 0:57cec3469a80 | 177 | strcpy(snd, "conn:on(\"receive\",function(conn,payload)\r\n"); |
jhunter029 | 0:57cec3469a80 | 178 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 179 | wait(1); |
jhunter029 | 0:57cec3469a80 | 180 | strcpy(snd, "print(payload)\r\n"); |
jhunter029 | 0:57cec3469a80 | 181 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 182 | wait(1); |
jhunter029 | 0:57cec3469a80 | 183 | |
jhunter029 | 0:57cec3469a80 | 184 | strcpy(snd, "conn:send(\"<!DOCTYPE html>\")\r\n"); |
jhunter029 | 0:57cec3469a80 | 185 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 186 | wait(1); |
jhunter029 | 0:57cec3469a80 | 187 | |
jhunter029 | 0:57cec3469a80 | 188 | strcpy(snd, "conn:send(\"<html>\")\r\n"); |
jhunter029 | 0:57cec3469a80 | 189 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 190 | wait(1); |
jhunter029 | 0:57cec3469a80 | 191 | |
jhunter029 | 0:57cec3469a80 | 192 | strcpy(snd, "conn:send(\"<h1> Hi James, NodeMcu.</h1>\")\r\n"); |
jhunter029 | 0:57cec3469a80 | 193 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 194 | wait(1); |
jhunter029 | 0:57cec3469a80 | 195 | |
jhunter029 | 0:57cec3469a80 | 196 | strcpy(snd, "conn:send(\"<h2> test</h2>\")\r\n"); |
jhunter029 | 0:57cec3469a80 | 197 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 198 | wait(1); |
jhunter029 | 0:57cec3469a80 | 199 | |
jhunter029 | 0:57cec3469a80 | 200 | strcpy(snd, "conn:send(\"</html>\")\r\n"); |
jhunter029 | 0:57cec3469a80 | 201 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 202 | wait(1); |
jhunter029 | 0:57cec3469a80 | 203 | |
jhunter029 | 0:57cec3469a80 | 204 | strcpy(snd, "end)\r\n"); |
jhunter029 | 0:57cec3469a80 | 205 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 206 | wait(1); |
jhunter029 | 0:57cec3469a80 | 207 | |
jhunter029 | 0:57cec3469a80 | 208 | strcpy(snd, "conn:on(\"sent\",function(conn) conn:close() end)\r\n"); |
jhunter029 | 0:57cec3469a80 | 209 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 210 | wait(1); |
jhunter029 | 0:57cec3469a80 | 211 | strcpy(snd, "end)\r\n"); |
jhunter029 | 0:57cec3469a80 | 212 | SendCMD(); |
jhunter029 | 0:57cec3469a80 | 213 | wait(1); |
jhunter029 | 0:57cec3469a80 | 214 | timeout=17; |
jhunter029 | 0:57cec3469a80 | 215 | getreply(); |
jhunter029 | 0:57cec3469a80 | 216 | pc.printf(buf); |
jhunter029 | 0:57cec3469a80 | 217 | pc.printf("\r\nDONE"); |
jhunter029 | 0:57cec3469a80 | 218 | } |
jhunter029 | 0:57cec3469a80 | 219 | |
jhunter029 | 0:57cec3469a80 | 220 | void SendCMD() |
jhunter029 | 0:57cec3469a80 | 221 | { |
jhunter029 | 0:57cec3469a80 | 222 | esp.printf("%s", snd); |
jhunter029 | 0:57cec3469a80 | 223 | } |
jhunter029 | 0:57cec3469a80 | 224 | |
jhunter029 | 0:57cec3469a80 | 225 | void getreply() |
jhunter029 | 0:57cec3469a80 | 226 | { |
jhunter029 | 0:57cec3469a80 | 227 | memset(buf, '\0', sizeof(buf)); |
jhunter029 | 0:57cec3469a80 | 228 | t.start(); |
jhunter029 | 0:57cec3469a80 | 229 | ended=0; |
jhunter029 | 0:57cec3469a80 | 230 | count=0; |
jhunter029 | 0:57cec3469a80 | 231 | while(!ended) { |
jhunter029 | 0:57cec3469a80 | 232 | if(esp.readable()) { |
jhunter029 | 0:57cec3469a80 | 233 | buf[count] = esp.getc(); |
jhunter029 | 0:57cec3469a80 | 234 | count++; |
jhunter029 | 0:57cec3469a80 | 235 | } |
jhunter029 | 0:57cec3469a80 | 236 | if(t.read() > timeout) { |
jhunter029 | 0:57cec3469a80 | 237 | ended = 1; |
jhunter029 | 0:57cec3469a80 | 238 | t.stop(); |
jhunter029 | 0:57cec3469a80 | 239 | t.reset(); |
jhunter029 | 0:57cec3469a80 | 240 | } |
jhunter029 | 0:57cec3469a80 | 241 | } |
jhunter029 | 0:57cec3469a80 | 242 | } |
jhunter029 | 0:57cec3469a80 | 243 | |
jhunter029 | 0:57cec3469a80 | 244 |