blownelco Plaetevoet / ESP8266Interface

Voor Arne

Fork of ESP8266Interface by ESP8266

ESP8266/ESP8266.cpp@50:3727afa4c1b5, 2017-02-06 (annotated)

Committer:
blownelco
Date:
Mon Feb 06 08:18:23 2017 +0000
Revision:
50:3727afa4c1b5
Parent:
49:5a4798ccba07 
Voor Arne

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:fb4494783863 1 /* Copyright (C) 2012 mbed.org, MIT License
samux 1:fb4494783863 2 *
samux 1:fb4494783863 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:fb4494783863 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
samux 1:fb4494783863 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
samux 1:fb4494783863 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
samux 1:fb4494783863 7 * furnished to do so, subject to the following conditions:
samux 1:fb4494783863 8 *
samux 1:fb4494783863 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:fb4494783863 10 * substantial portions of the Software.
samux 1:fb4494783863 11 *
samux 1:fb4494783863 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:fb4494783863 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:fb4494783863 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:fb4494783863 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:fb4494783863 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:fb4494783863 17 */
samux 1:fb4494783863 18
samux 1:fb4494783863 19 #include "mbed.h"
michaeljkoster 13:41098c907200 20 #include "ESP8266.h"
blownelco 49:5a4798ccba07 21
samux 1:fb4494783863 22 #include <string>
samux 1:fb4494783863 23 #include <algorithm>
samux 1:fb4494783863 24
samux 1:fb4494783863 25 //Debug is disabled by default
sarahmarshy 46:913d07795182 26 #if 0
mbedAustin 42:3f62103a4f3c 27 #define DBG(x, ...) printf("[ESP8266 : DBG]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
mbedAustin 42:3f62103a4f3c 28 #define WARN(x, ...) printf("[ESP8266 : WARN]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
mbedAustin 42:3f62103a4f3c 29 #define ERR(x, ...) printf("[ESP8266 : ERR]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
samux 1:fb4494783863 30 #else
sarahmarshy 46:913d07795182 31 #define DBG(x, ...) //wait_us(10);
sarahmarshy 46:913d07795182 32 #define WARN(x, ...) //wait_us(10);
samux 1:fb4494783863 33 #define ERR(x, ...)
samux 1:fb4494783863 34 #endif
samux 1:fb4494783863 35
mbedAustin 47:1f4dd0e91837 36 #if 0
mbedAustin 42:3f62103a4f3c 37 #define INFO(x, ...) printf("[ESP8266 : INFO]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
samux 1:fb4494783863 38 #else
samux 1:fb4494783863 39 #define INFO(x, ...)
samux 1:fb4494783863 40 #endif
samux 1:fb4494783863 41
mbedAustin 30:c035696b9397 42 #define ESP_MAX_TRY_JOIN 3
mbedAustin 30:c035696b9397 43 #define ESP_MAXID 4 // the largest possible ID Value (max num of sockets possible)
samux 1:fb4494783863 44
blownelco 49:5a4798ccba07 45
blownelco 49:5a4798ccba07 46 DigitalOut led4(PTA14); // RGB LED
blownelco 49:5a4798ccba07 47 DigitalOut led3(PTA13); // RGB LED
blownelco 50:3727afa4c1b5 48 //RawSerial pc(USBTX, USBRX); // Serial interface
blownelco 50:3727afa4c1b5 49
blownelco 49:5a4798ccba07 50
michaeljkoster 13:41098c907200 51 ESP8266 * ESP8266::inst;
mbedAustin 29:939372104145 52 char* ip = NULL;
samux 1:fb4494783863 53
sam_grove 40:0a83315aea0a 54 ESP8266::ESP8266(PinName tx, PinName rx, PinName reset, const char *ssid, const char *phrase, uint32_t baud) :
sam_grove 40:0a83315aea0a 55 wifi(tx, rx), reset_pin(reset), buf_ESP8266(ESP_MBUFFE_MAX)
samux 1:fb4494783863 56 {
mbedAustin 36:e1545c6c2cb3 57 INFO("Initializing ESP8266 object");
samux 1:fb4494783863 58 memset(&state, 0, sizeof(state));
samux 1:fb4494783863 59
michaeljkoster 26:0d5bcb3903e2 60 // change all ' ' in '$' in the ssid and the passphrase
samux 1:fb4494783863 61 strcpy(this->ssid, ssid);
samux 1:fb4494783863 62 for (int i = 0; i < strlen(ssid); i++) {
samux 1:fb4494783863 63 if (this->ssid[i] == ' ')
samux 1:fb4494783863 64 this->ssid[i] = '$';
samux 1:fb4494783863 65 }
sam_grove 40:0a83315aea0a 66
samux 1:fb4494783863 67 strcpy(this->phrase, phrase);
samux 1:fb4494783863 68 for (int i = 0; i < strlen(phrase); i++) {
samux 1:fb4494783863 69 if (this->phrase[i] == ' ')
samux 1:fb4494783863 70 this->phrase[i] = '$';
samux 1:fb4494783863 71 }
michaeljkoster 26:0d5bcb3903e2 72
samux 1:fb4494783863 73 inst = this;
samux 1:fb4494783863 74 attach_rx(false);
mbedAustin 28:91e65e22e63a 75
mbedAustin 28:91e65e22e63a 76 wifi.baud(baud); // initial baud rate of the ESP8266
mbedAustin 28:91e65e22e63a 77
michaeljkoster 22:c4360e61486a 78 state.associated = false;
michaeljkoster 22:c4360e61486a 79 state.cmdMode = false;
samux 1:fb4494783863 80 }
samux 1:fb4494783863 81
michaeljkoster 13:41098c907200 82 bool ESP8266::join()
samux 1:fb4494783863 83 {
michaeljkoster 23:de9221771e96 84 sendCommand( "AT+CWMODE=1", "change", NULL, 1000);
michaeljkoster 16:3f0efaa57a12 85 string cmd="AT+CWJAP=\""+(string)this->ssid+"\",\""+(string)this->phrase+"\"";
mbedAustin 28:91e65e22e63a 86 if( sendCommand( cmd.c_str(), "OK", NULL, 10000) ) {
michaeljkoster 16:3f0efaa57a12 87 // successfully joined the network
samux 1:fb4494783863 88 state.associated = true;
blownelco 50:3727afa4c1b5 89 //pc.printf("connected");
blownelco 49:5a4798ccba07 90 //INFO("ssid: %s, phrase: %s", this->ssid, this->phrase);
samux 1:fb4494783863 91 return true;
samux 1:fb4494783863 92 }
blownelco 50:3727afa4c1b5 93 //pc.printf(" not connected");
samux 1:fb4494783863 94 return false;
samux 1:fb4494783863 95 }
samux 1:fb4494783863 96
michaeljkoster 13:41098c907200 97 bool ESP8266::connect()
samux 1:fb4494783863 98 {
blownelco 50:3727afa4c1b5 99 //pc.printf("connect");
blownelco 49:5a4798ccba07 100 //sendCommand("AT+CWDHCP=1,1","OK",NULL,1000); // DHCP Enabled in Station Mode
mbedAustin 28:91e65e22e63a 101 return ESP8266::join();
samux 1:fb4494783863 102 }
samux 1:fb4494783863 103
michaeljkoster 15:37a7a56a424f 104 bool ESP8266::is_connected()
michaeljkoster 15:37a7a56a424f 105 {
michaeljkoster 15:37a7a56a424f 106 return true;
michaeljkoster 15:37a7a56a424f 107 }
michaeljkoster 15:37a7a56a424f 108
mbedAustin 30:c035696b9397 109 bool ESP8266::start(bool type,char* ip, int port, int id)
mbedAustin 30:c035696b9397 110 {
mbedAustin 30:c035696b9397 111 // Error Check
mbedAustin 30:c035696b9397 112 if(id > ESP_MAXID) {
mbedAustin 30:c035696b9397 113 ERR("startUDPMulti: max id is: %d, id given is %d",ESP_MAXID,id);
mbedAustin 30:c035696b9397 114 return false;
mbedAustin 30:c035696b9397 115 }
mbedAustin 30:c035696b9397 116 // Single Connection Mode
mbedAustin 30:c035696b9397 117 if(id < 0) {
mbedAustin 30:c035696b9397 118 DBG("Start Single Connection Mode");
mbedAustin 30:c035696b9397 119 char portstr[5];
mbedAustin 30:c035696b9397 120 char idstr[2];
mbedAustin 30:c035696b9397 121 bool check [3] = {0};
mbedAustin 30:c035696b9397 122 sprintf(idstr,"%d",id);
mbedAustin 30:c035696b9397 123 sprintf(portstr, "%d", port);
mbedAustin 30:c035696b9397 124 switch(type) {
mbedAustin 30:c035696b9397 125 case ESP_UDP_TYPE : //UDP
mbedAustin 32:cf071dc33972 126 check[0] = sendCommand(( "AT+CIPSTART=\"UDP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 30:c035696b9397 127 break;
mbedAustin 30:c035696b9397 128 case ESP_TCP_TYPE : //TCP
mbedAustin 32:cf071dc33972 129 check[0] = sendCommand(( "AT+CIPSTART=\"TCP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 30:c035696b9397 130 break;
mbedAustin 30:c035696b9397 131 default:
mbedAustin 30:c035696b9397 132 ERR("Default hit for starting connection, this shouldnt be possible!!");
mbedAustin 30:c035696b9397 133 break;
mbedAustin 30:c035696b9397 134 }
mbedAustin 30:c035696b9397 135 check[1] = sendCommand("AT+CIPMODE=1", "OK", NULL, 1000);// go into transparent mode
mbedAustin 30:c035696b9397 136 check[2] = sendCommand("AT+CIPSEND", ">", NULL, 1000);// go into transparent mode
mbedAustin 30:c035696b9397 137 // check that all commands were sucessful
mbedAustin 32:cf071dc33972 138 if(check[0] and check[1] and check[2]) {
mbedAustin 30:c035696b9397 139 state.cmdMode = false;
mbedAustin 30:c035696b9397 140 return true;
mbedAustin 30:c035696b9397 141 } else {
mbedAustin 36:e1545c6c2cb3 142 ERR("startUDPTransparent Failed for ip:%s, port:%d",ip,port);
mbedAustin 30:c035696b9397 143 return false;
mbedAustin 30:c035696b9397 144 }
mbedAustin 30:c035696b9397 145 }
mbedAustin 30:c035696b9397 146 // Multi Connection Mode
mbedAustin 30:c035696b9397 147 else {
mbedAustin 30:c035696b9397 148 //TODO: impliment Multi Connection Mode
mbedAustin 30:c035696b9397 149 ERR("Not currently Supported!");
mbedAustin 30:c035696b9397 150 return false;
mbedAustin 32:cf071dc33972 151
mbedAustin 32:cf071dc33972 152 // DBG("Start Multi Connection Mode");
mbedAustin 32:cf071dc33972 153 // char portstr[5];
mbedAustin 32:cf071dc33972 154 // char idstr[2];
mbedAustin 32:cf071dc33972 155 // bool check [3] = {0};
mbedAustin 32:cf071dc33972 156 // sprintf(idstr,"%d",id);
mbedAustin 32:cf071dc33972 157 // sprintf(portstr, "%d", port);
mbedAustin 32:cf071dc33972 158 // switch(type) {
mbedAustin 32:cf071dc33972 159 // case ESP_UDP_TYPE : //UDP
mbedAustin 32:cf071dc33972 160 // check[0] = sendCommand(( "AT+CIPSTART=" + (string) idstr + ",\"UDP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 32:cf071dc33972 161 // break;
mbedAustin 32:cf071dc33972 162 // case ESP_TCP_TYPE : //TCP
mbedAustin 32:cf071dc33972 163 // check[0] = sendCommand(( "AT+CIPSTART=" + (string) idstr + ",\"TCP\",\"" + (string) ip + "\"," + (string) portstr ).c_str(), "OK", NULL, 10000);
mbedAustin 32:cf071dc33972 164 // break;
mbedAustin 32:cf071dc33972 165 // default:
mbedAustin 32:cf071dc33972 166 // ERR("Default hit for starting connection, this shouldnt be possible!!");
mbedAustin 32:cf071dc33972 167 // break;
mbedAustin 32:cf071dc33972 168 // }
mbedAustin 30:c035696b9397 169 }
mbedAustin 30:c035696b9397 170 }
mbedAustin 30:c035696b9397 171
sarahmarshy 44:3a7b6083210b 172 bool ESP8266::startUDP(char* ip, int port, int id, int length)
mbedAustin 28:91e65e22e63a 173 {
michaeljkoster 17:d11fa4c3ac65 174 char portstr[5];
sarahmarshy 44:3a7b6083210b 175 char idstr[1];
sarahmarshy 44:3a7b6083210b 176 char lenstr[2];
sarahmarshy 44:3a7b6083210b 177
michaeljkoster 16:3f0efaa57a12 178 sprintf(portstr, "%d", port);
sarahmarshy 44:3a7b6083210b 179 sprintf(idstr, "%d", id);
sarahmarshy 44:3a7b6083210b 180 sprintf(lenstr, "%d", length);
sarahmarshy 44:3a7b6083210b 181
sarahmarshy 44:3a7b6083210b 182 sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 183 sendCommand(( "AT+CIPSTART=" + string(idstr) + ",\"UDP\",\"" + (string) ip + "\"," + (string) portstr + ",1112,0").c_str(), "OK", NULL, 10000);
sarahmarshy 44:3a7b6083210b 184 sendCommand(("AT+CIPSEND=" + (string)idstr + "," + (string)lenstr).c_str(), ">", NULL, 1000);// go into transparent mode
mbedAustin 34:7ccda5d68a00 185 DBG("Data Mode\r\n");
michaeljkoster 22:c4360e61486a 186 state.cmdMode = false;
mbedAustin 28:91e65e22e63a 187
michaeljkoster 16:3f0efaa57a12 188 return true;
michaeljkoster 16:3f0efaa57a12 189 }
michaeljkoster 16:3f0efaa57a12 190
sarahmarshy 44:3a7b6083210b 191 bool ESP8266::startTCPServer(int port)
sarahmarshy 44:3a7b6083210b 192 {
sarahmarshy 44:3a7b6083210b 193 bool command_results[3];
sarahmarshy 44:3a7b6083210b 194 command_results[0]=sendCommand("AT+CWMODE=3", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 195 command_results[1]=sendCommand("AT+CIPMUX=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 196 if(port == 333){
sarahmarshy 44:3a7b6083210b 197 command_results[2]=sendCommand("AT+CIPSERVER=1", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 198 }
sarahmarshy 44:3a7b6083210b 199 else{
sarahmarshy 44:3a7b6083210b 200 char portstr[5];
sarahmarshy 44:3a7b6083210b 201 sprintf(portstr, "%d", port);
sarahmarshy 44:3a7b6083210b 202 command_results[2]=sendCommand(("AT+CIPSERVER=1," + (string)portstr).c_str(), "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 203 }
sarahmarshy 44:3a7b6083210b 204 //sendCommand("AT+CIFSR", "OK", NULL, 1000);
sarahmarshy 44:3a7b6083210b 205 DBG("Data Mode\r\n");
sarahmarshy 44:3a7b6083210b 206 state.cmdMode = false;
sarahmarshy 44:3a7b6083210b 207 if (command_results[0] and command_results[1] and command_results[2]){
sarahmarshy 44:3a7b6083210b 208 return true;
sarahmarshy 44:3a7b6083210b 209 }
sarahmarshy 44:3a7b6083210b 210 else{
sarahmarshy 44:3a7b6083210b 211 return false;
sarahmarshy 44:3a7b6083210b 212 }
sarahmarshy 44:3a7b6083210b 213 }
sarahmarshy 44:3a7b6083210b 214
michaeljkoster 15:37a7a56a424f 215 bool ESP8266::close()
michaeljkoster 15:37a7a56a424f 216 {
sam_grove 40:0a83315aea0a 217 wait(0.1f);
michaeljkoster 17:d11fa4c3ac65 218 send("+++",3);
sam_grove 40:0a83315aea0a 219 wait(1.0f);
michaeljkoster 22:c4360e61486a 220 state.cmdMode = true;
michaeljkoster 16:3f0efaa57a12 221 sendCommand("AT+CIPCLOSE","OK", NULL, 10000);
michaeljkoster 15:37a7a56a424f 222 return true;
michaeljkoster 15:37a7a56a424f 223 }
michaeljkoster 15:37a7a56a424f 224
michaeljkoster 15:37a7a56a424f 225 bool ESP8266::disconnect()
michaeljkoster 15:37a7a56a424f 226 {
michaeljkoster 15:37a7a56a424f 227 // if already disconnected, return
michaeljkoster 15:37a7a56a424f 228 if (!state.associated)
michaeljkoster 15:37a7a56a424f 229 return true;
michaeljkoster 15:37a7a56a424f 230 // send command to quit AP
mbedAustin 28:91e65e22e63a 231 sendCommand("AT+CWQAP", "OK", NULL, 10000);
michaeljkoster 15:37a7a56a424f 232 state.associated = false;
michaeljkoster 15:37a7a56a424f 233 return true;
michaeljkoster 15:37a7a56a424f 234 }
michaeljkoster 15:37a7a56a424f 235
mbedAustin 28:91e65e22e63a 236 /*
mbedAustin 28:91e65e22e63a 237 Assuming Returned data looks like this:
mbedAustin 28:91e65e22e63a 238 +CIFSR:STAIP,"192.168.11.2"
mbedAustin 28:91e65e22e63a 239 +CIFSR:STAMAC,"18:fe:34:9f:3a:f5"
mbedAustin 28:91e65e22e63a 240 grabbing IP from first set of quotation marks
mbedAustin 28:91e65e22e63a 241 */
michaeljkoster 15:37a7a56a424f 242 char* ESP8266::getIPAddress()
michaeljkoster 15:37a7a56a424f 243 {
blownelco 50:3727afa4c1b5 244 //pc.printf("getting ip\n");
mbedAustin 28:91e65e22e63a 245 char result[30] = {0};
mbedAustin 28:91e65e22e63a 246 int check = 0;
blownelco 49:5a4798ccba07 247 check = sendCommand("AT", "OK", NULL, 1000);
blownelco 50:3727afa4c1b5 248 //pc.printf("\r\nReceivedInfo for IP Command is: %s\r\n",result);
blownelco 49:5a4798ccba07 249
blownelco 49:5a4798ccba07 250 check = sendCommand("AT+CIFSR", NULL, result, 3000);
blownelco 50:3727afa4c1b5 251 //pc.printf("\r\nReceivedInfo for IP Command is: %s\r\n",result);
blownelco 49:5a4798ccba07 252
blownelco 49:5a4798ccba07 253
blownelco 49:5a4798ccba07 254 //ip = ipString;
blownelco 49:5a4798ccba07 255 /* if(check) {
mbedAustin 28:91e65e22e63a 256 // Success
mbedAustin 28:91e65e22e63a 257 string resultString(result);
mbedAustin 28:91e65e22e63a 258 uint8_t pos1 = 0, pos2 = 0;
mbedAustin 28:91e65e22e63a 259 //uint8_t pos3 = 0, pos4 = 0;
mbedAustin 28:91e65e22e63a 260 pos1 = resultString.find("+CIFSR:STAIP");
mbedAustin 28:91e65e22e63a 261 pos1 = resultString.find('"',pos1);
mbedAustin 28:91e65e22e63a 262 pos2 = resultString.find('"',pos1+1);
mbedAustin 28:91e65e22e63a 263 //pos3 = resultString.find('"',pos2+1); //would find mac address
mbedAustin 28:91e65e22e63a 264 //pos4 = resultString.find('"',pos3+1);
mbedAustin 28:91e65e22e63a 265 strncpy(ipString,resultString.substr(pos1,pos2).c_str(),sizeof(ipString));
mbedAustin 28:91e65e22e63a 266 ipString[pos2 - pos1 +1] = 0; // null terminate string correctly.
blownelco 49:5a4798ccba07 267 pc.printf(ipString);
mbedAustin 29:939372104145 268 ip = ipString;
mbedAustin 29:939372104145 269
mbedAustin 29:939372104145 270 } else {
mbedAustin 28:91e65e22e63a 271 // Failure
blownelco 49:5a4798ccba07 272 pc.printf("getIPAddress() failed");
mbedAustin 29:939372104145 273 ip = NULL;
mbedAustin 28:91e65e22e63a 274 }
blownelco 49:5a4798ccba07 275 */ return ip;
michaeljkoster 15:37a7a56a424f 276 }
michaeljkoster 15:37a7a56a424f 277
michaeljkoster 13:41098c907200 278 bool ESP8266::gethostbyname(const char * host, char * ip)
samux 1:fb4494783863 279 {
samux 1:fb4494783863 280 string h = host;
samux 1:fb4494783863 281 int nb_digits = 0;
samux 1:fb4494783863 282
samux 1:fb4494783863 283 // no dns needed
samux 1:fb4494783863 284 int pos = h.find(".");
samux 1:fb4494783863 285 if (pos != string::npos) {
samux 1:fb4494783863 286 string sub = h.substr(0, h.find("."));
samux 1:fb4494783863 287 nb_digits = atoi(sub.c_str());
samux 1:fb4494783863 288 }
samux 1:fb4494783863 289 //printf("substrL %s\r\n", sub.c_str());
samux 1:fb4494783863 290 if (count(h.begin(), h.end(), '.') == 3 && nb_digits > 0) {
samux 1:fb4494783863 291 strcpy(ip, host);
michaeljkoster 13:41098c907200 292 return true;
mbedAustin 28:91e65e22e63a 293 } else {
michaeljkoster 13:41098c907200 294 // dns needed, not currently available
mbedAustin 30:c035696b9397 295 ERR("gethostbyname(): DNS Not currently available, only use IP Addresses!");
michaeljkoster 13:41098c907200 296 return false;
michaeljkoster 13:41098c907200 297 }
michaeljkoster 13:41098c907200 298 }
samux 1:fb4494783863 299
michaeljkoster 13:41098c907200 300 void ESP8266::reset()
samux 1:fb4494783863 301 {
blownelco 50:3727afa4c1b5 302 // reset_pin = 0;
blownelco 50:3727afa4c1b5 303 // wait_us(20);
blownelco 50:3727afa4c1b5 304 // reset_pin = 1; // MAGENTO SENSOR WERKT NIET MEER ALS DIT AANSTAAT
blownelco 49:5a4798ccba07 305 led4 = 1;
sam_grove 40:0a83315aea0a 306 //wait(1);
sarahmarshy 46:913d07795182 307 //reset_pin = !reset_pin
michaeljkoster 24:03585a13ff3b 308 //send("+++",3);
sarahmarshy 46:913d07795182 309 wait(1);
michaeljkoster 24:03585a13ff3b 310 state.cmdMode = true;
michaeljkoster 24:03585a13ff3b 311 sendCommand("AT", "OK", NULL, 1000);
mbedAustin 28:91e65e22e63a 312 sendCommand("AT+RST", "ready", NULL, 10000);
michaeljkoster 24:03585a13ff3b 313 state.associated = false;
blownelco 49:5a4798ccba07 314 led4 =0;
samux 1:fb4494783863 315 }
samux 1:fb4494783863 316
michaeljkoster 13:41098c907200 317 bool ESP8266::reboot()
samux 3:9aa05e19c62e 318 {
michaeljkoster 16:3f0efaa57a12 319 reset();
samux 3:9aa05e19c62e 320 return true;
samux 3:9aa05e19c62e 321 }
samux 3:9aa05e19c62e 322
michaeljkoster 15:37a7a56a424f 323 void ESP8266::handler_rx(void)
samux 1:fb4494783863 324 {
michaeljkoster 15:37a7a56a424f 325 //read characters
michaeljkoster 16:3f0efaa57a12 326 char c;
mbedAustin 28:91e65e22e63a 327 while (wifi.readable()) {
michaeljkoster 16:3f0efaa57a12 328 c=wifi.getc();
blownelco 49:5a4798ccba07 329 //pc.putc(c);
michaeljkoster 16:3f0efaa57a12 330 buf_ESP8266.queue(c);
michaeljkoster 26:0d5bcb3903e2 331 //if (state.cmdMode) pc.printf("%c",c); //debug echo, needs fast serial console to prevent UART overruns
michaeljkoster 16:3f0efaa57a12 332 }
michaeljkoster 15:37a7a56a424f 333 }
michaeljkoster 15:37a7a56a424f 334
michaeljkoster 15:37a7a56a424f 335 void ESP8266::attach_rx(bool callback)
michaeljkoster 15:37a7a56a424f 336 {
sam_grove 40:0a83315aea0a 337 if (!callback) {
michaeljkoster 15:37a7a56a424f 338 wifi.attach(NULL);
sam_grove 40:0a83315aea0a 339 }
sam_grove 40:0a83315aea0a 340 else {
michaeljkoster 15:37a7a56a424f 341 wifi.attach(this, &ESP8266::handler_rx);
sam_grove 40:0a83315aea0a 342 }
samux 1:fb4494783863 343 }
samux 1:fb4494783863 344
michaeljkoster 13:41098c907200 345 int ESP8266::readable()
samux 1:fb4494783863 346 {
michaeljkoster 13:41098c907200 347 return buf_ESP8266.available();
samux 1:fb4494783863 348 }
samux 1:fb4494783863 349
michaeljkoster 13:41098c907200 350 int ESP8266::writeable()
samux 1:fb4494783863 351 {
samux 1:fb4494783863 352 return wifi.writeable();
samux 1:fb4494783863 353 }
samux 1:fb4494783863 354
michaeljkoster 13:41098c907200 355 char ESP8266::getc()
samux 1:fb4494783863 356 {
michaeljkoster 14:4d1128f72e00 357 char c=0;
michaeljkoster 13:41098c907200 358 while (!buf_ESP8266.available());
michaeljkoster 13:41098c907200 359 buf_ESP8266.dequeue(&c);
samux 1:fb4494783863 360 return c;
samux 1:fb4494783863 361 }
samux 1:fb4494783863 362
michaeljkoster 15:37a7a56a424f 363 int ESP8266::putc(char c)
samux 1:fb4494783863 364 {
michaeljkoster 20:d764237405c2 365 while (!wifi.writeable() || wifi.readable()); //wait for echoed command characters to be read first
michaeljkoster 15:37a7a56a424f 366 return wifi.putc(c);
samux 1:fb4494783863 367 }
samux 1:fb4494783863 368
michaeljkoster 15:37a7a56a424f 369 void ESP8266::flush()
samux 1:fb4494783863 370 {
michaeljkoster 15:37a7a56a424f 371 buf_ESP8266.flush();
samux 1:fb4494783863 372 }
samux 1:fb4494783863 373
michaeljkoster 16:3f0efaa57a12 374 int ESP8266::send(const char * buf, int len)
michaeljkoster 15:37a7a56a424f 375 {
mbedAustin 32:cf071dc33972 376 //TODO: need to add handler for data > 2048B, this is the max packet size of the ESP8266.
mbedAustin 43:2e326d95fe2c 377 if(len >= 2048){
mbedAustin 43:2e326d95fe2c 378 WARN("send buffer >= 2048B, need to chunk this up to be less.");
mbedAustin 43:2e326d95fe2c 379 }
michaeljkoster 16:3f0efaa57a12 380 const char* bufptr=buf;
mbedAustin 28:91e65e22e63a 381 for(int i=0; i<len; i++) {
michaeljkoster 17:d11fa4c3ac65 382 putc((int)*bufptr++);
michaeljkoster 18:60422852e99c 383 }
michaeljkoster 19:fb8d5bff2076 384 return len;
michaeljkoster 15:37a7a56a424f 385 }
samux 1:fb4494783863 386
michaeljkoster 16:3f0efaa57a12 387 bool ESP8266::sendCommand(const char * cmd, const char * ACK, char * res, int timeout)
samux 1:fb4494783863 388 {
samux 1:fb4494783863 389 char read;
samux 1:fb4494783863 390 size_t found = string::npos;
sam_grove 40:0a83315aea0a 391 string checking = "";
samux 1:fb4494783863 392 Timer tmr;
samux 1:fb4494783863 393 int result = 0;
samux 1:fb4494783863 394
mbedAustin 42:3f62103a4f3c 395 DBG("sendCmd:\t %s",cmd);
samux 1:fb4494783863 396
michaeljkoster 17:d11fa4c3ac65 397 attach_rx(true);
samux 1:fb4494783863 398
samux 1:fb4494783863 399 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 400 while (readable())
michaeljkoster 17:d11fa4c3ac65 401 getc();
mbedAustin 28:91e65e22e63a 402
samux 1:fb4494783863 403 if (!ACK || !strcmp(ACK, "NO")) {
mbedAustin 28:91e65e22e63a 404 for (int i = 0; i < strlen(cmd); i++) {
michaeljkoster 16:3f0efaa57a12 405 result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
sam_grove 40:0a83315aea0a 406 wait(0.005f); // prevents stuck recieve ready (?) need to let echoed character get read first
michaeljkoster 16:3f0efaa57a12 407 }
michaeljkoster 16:3f0efaa57a12 408 putc(13); //CR
sam_grove 40:0a83315aea0a 409 wait(0.005f); // wait for echo
michaeljkoster 16:3f0efaa57a12 410 putc(10); //LF
michaeljkoster 16:3f0efaa57a12 411
samux 1:fb4494783863 412 } else {
samux 1:fb4494783863 413 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 414 while (readable())
michaeljkoster 17:d11fa4c3ac65 415 getc();
samux 1:fb4494783863 416
samux 1:fb4494783863 417 tmr.start();
mbedAustin 28:91e65e22e63a 418 for (int i = 0; i < strlen(cmd); i++) {
michaeljkoster 16:3f0efaa57a12 419 result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result;
michaeljkoster 20:d764237405c2 420 wait(.005); // wait for echo
michaeljkoster 16:3f0efaa57a12 421 }
michaeljkoster 16:3f0efaa57a12 422 putc(13); //CR
sam_grove 40:0a83315aea0a 423 wait(0.005f); // wait for echo
michaeljkoster 16:3f0efaa57a12 424 putc(10); //LF
samux 1:fb4494783863 425
samux 1:fb4494783863 426 while (1) {
samux 1:fb4494783863 427 if (tmr.read_ms() > timeout) {
samux 1:fb4494783863 428 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 429 while (readable())
michaeljkoster 17:d11fa4c3ac65 430 getc();
samux 1:fb4494783863 431
mbedAustin 42:3f62103a4f3c 432 DBG("check:\t %s", checking.c_str());
samux 1:fb4494783863 433
samux 1:fb4494783863 434 attach_rx(true);
samux 1:fb4494783863 435 return -1;
michaeljkoster 17:d11fa4c3ac65 436 } else if (readable()) {
michaeljkoster 17:d11fa4c3ac65 437 read = getc();
blownelco 50:3727afa4c1b5 438 //pc.putc(read); //debug echo
samux 1:fb4494783863 439 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 440 checking += read;
samux 1:fb4494783863 441 found = checking.find(ACK);
samux 1:fb4494783863 442 if (found != string::npos) {
sam_grove 40:0a83315aea0a 443 wait(0.01f);
samux 1:fb4494783863 444
samux 1:fb4494783863 445 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 446 while (readable())
michaeljkoster 26:0d5bcb3903e2 447 read = getc();
sam_grove 40:0a83315aea0a 448 //printf("%c",read); //debug echo
samux 1:fb4494783863 449 break;
samux 1:fb4494783863 450 }
samux 1:fb4494783863 451 }
samux 1:fb4494783863 452 }
samux 1:fb4494783863 453 }
mbedAustin 36:e1545c6c2cb3 454 DBG("check: %s", checking.c_str());
samux 1:fb4494783863 455
samux 1:fb4494783863 456 attach_rx(true);
samux 1:fb4494783863 457 return result;
samux 1:fb4494783863 458 }
samux 1:fb4494783863 459
samux 1:fb4494783863 460 //the user wants the result from the command (ACK == NULL, res != NULL)
sarahmarshy 46:913d07795182 461 if (res != NULL) {
samux 1:fb4494783863 462 int i = 0;
samux 1:fb4494783863 463 Timer timeout;
samux 1:fb4494783863 464 timeout.start();
samux 1:fb4494783863 465 tmr.reset();
samux 1:fb4494783863 466 while (1) {
samux 1:fb4494783863 467 if (timeout.read() > 2) {
samux 1:fb4494783863 468 if (i == 0) {
samux 1:fb4494783863 469 res = NULL;
samux 1:fb4494783863 470 break;
samux 1:fb4494783863 471 }
samux 1:fb4494783863 472 res[i] = '\0';
mbedAustin 36:e1545c6c2cb3 473 DBG("user str 1: %s", res);
samux 1:fb4494783863 474
samux 1:fb4494783863 475 break;
samux 1:fb4494783863 476 } else {
samux 1:fb4494783863 477 if (tmr.read_ms() > 300) {
samux 1:fb4494783863 478 res[i] = '\0';
mbedAustin 36:e1545c6c2cb3 479 DBG("user str: %s", res);
samux 1:fb4494783863 480
samux 1:fb4494783863 481 break;
samux 1:fb4494783863 482 }
michaeljkoster 17:d11fa4c3ac65 483 if (readable()) {
samux 1:fb4494783863 484 tmr.start();
michaeljkoster 17:d11fa4c3ac65 485 read = getc();
samux 1:fb4494783863 486
samux 1:fb4494783863 487 // we drop \r and \n
samux 1:fb4494783863 488 if ( read != '\r' && read != '\n') {
samux 1:fb4494783863 489 res[i++] = read;
samux 1:fb4494783863 490 }
samux 1:fb4494783863 491 }
samux 1:fb4494783863 492 }
samux 1:fb4494783863 493 }
mbedAustin 36:e1545c6c2cb3 494 DBG("user str: %s", res);
samux 1:fb4494783863 495 }
samux 1:fb4494783863 496
samux 1:fb4494783863 497 //We flush the buffer
michaeljkoster 17:d11fa4c3ac65 498 while (readable())
michaeljkoster 17:d11fa4c3ac65 499 getc();
samux 1:fb4494783863 500
samux 1:fb4494783863 501 attach_rx(true);
mbedAustin 36:e1545c6c2cb3 502 DBG("result: %d", result)
samux 1:fb4494783863 503 return result;
michaeljkoster 15:37a7a56a424f 504 }