Takehisa Oneta / ESP8266

modified by ohneta

Dependencies:   ATParser

Dependents:   ESP8266Interface

Fork of ESP8266 by NetworkSocketAPI

ESP8266.cpp@15:1ff5d44d5e30, 2015-11-11 (annotated)

Committer:
ohneta
Date:
Wed Nov 11 03:40:18 2015 +0000
Revision:
15:1ff5d44d5e30
Parent:
14:71474261a9d7 
check of disconnected on close()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sarahmarshy 8:80048194de79 1 /* ESP8266 Example
sarahmarshy 8:80048194de79 2 * Copyright (c) 2015 ARM Limited
sarahmarshy 8:80048194de79 3 *
sarahmarshy 8:80048194de79 4 * Licensed under the Apache License, Version 2.0 (the "License");
sarahmarshy 8:80048194de79 5 * you may not use this file except in compliance with the License.
sarahmarshy 8:80048194de79 6 * You may obtain a copy of the License at
sarahmarshy 8:80048194de79 7 *
sarahmarshy 8:80048194de79 8 * http://www.apache.org/licenses/LICENSE-2.0
sarahmarshy 8:80048194de79 9 *
sarahmarshy 8:80048194de79 10 * Unless required by applicable law or agreed to in writing, software
sarahmarshy 8:80048194de79 11 * distributed under the License is distributed on an "AS IS" BASIS,
sarahmarshy 8:80048194de79 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sarahmarshy 8:80048194de79 13 * See the License for the specific language governing permissions and
sarahmarshy 8:80048194de79 14 * limitations under the License.
sarahmarshy 8:80048194de79 15 */
sam_grove 9:dcf3aa250bc1 16
sarahmarshy 8:80048194de79 17 #include "ESP8266.h"
sarahmarshy 8:80048194de79 18
sam_grove 9:dcf3aa250bc1 19 ESP8266::ESP8266(PinName tx, PinName rx) : serial(tx, rx), atParser(serial)
sarahmarshy 8:80048194de79 20 {
sarahmarshy 8:80048194de79 21 serial.baud(115200);
sarahmarshy 8:80048194de79 22 }
sarahmarshy 8:80048194de79 23
sarahmarshy 8:80048194de79 24 bool ESP8266::startup(void)
sarahmarshy 8:80048194de79 25 {
sarahmarshy 8:80048194de79 26 return (atParser.send("AT") && atParser.recv("OK"));
sarahmarshy 8:80048194de79 27 }
sam_grove 9:dcf3aa250bc1 28
sarahmarshy 8:80048194de79 29 bool ESP8266::reset(void)
sarahmarshy 8:80048194de79 30 {
sarahmarshy 8:80048194de79 31 return (atParser.send("AT+RST") && atParser.recv("OK\r\nready"));
sarahmarshy 8:80048194de79 32 }
sam_grove 9:dcf3aa250bc1 33
sarahmarshy 8:80048194de79 34 bool ESP8266::wifiMode(int mode)
sarahmarshy 8:80048194de79 35 {
sarahmarshy 8:80048194de79 36 //only 3 valid modes
sam_grove 9:dcf3aa250bc1 37 if(mode < 1 || mode > 3) {
sarahmarshy 8:80048194de79 38 return false;
sam_grove 9:dcf3aa250bc1 39 }
sam_grove 9:dcf3aa250bc1 40
sarahmarshy 8:80048194de79 41 char modestr[1];
sarahmarshy 8:80048194de79 42 sprintf(modestr,"%d",mode);
sarahmarshy 8:80048194de79 43 string mode_command = "AT+CWMODE="+string(modestr);
sam_grove 9:dcf3aa250bc1 44 return (atParser.send(mode_command.c_str()) && atParser.recv("OK"));
sarahmarshy 8:80048194de79 45 }
sam_grove 9:dcf3aa250bc1 46
sarahmarshy 8:80048194de79 47 bool ESP8266::multipleConnections(bool enabled)
sarahmarshy 8:80048194de79 48 {
sarahmarshy 8:80048194de79 49 int on = (int)enabled;
sarahmarshy 8:80048194de79 50 char enable[1];
sarahmarshy 8:80048194de79 51 sprintf(enable,"%d",on);
sarahmarshy 8:80048194de79 52 string mux_command = "AT+CIPMUX="+string(enable);
sam_grove 9:dcf3aa250bc1 53 return (atParser.send(mux_command.c_str()) && atParser.recv("OK"));
sarahmarshy 8:80048194de79 54 }
sam_grove 9:dcf3aa250bc1 55
sarahmarshy 8:80048194de79 56 bool ESP8266::dhcp(int mode, bool enabled)
sarahmarshy 8:80048194de79 57 {
sarahmarshy 8:80048194de79 58 //only 3 valid modes
sam_grove 9:dcf3aa250bc1 59 if(mode < 0 || mode > 2) {
sarahmarshy 8:80048194de79 60 return false;
sam_grove 9:dcf3aa250bc1 61 }
sarahmarshy 8:80048194de79 62 int on = (int)enabled;
sarahmarshy 8:80048194de79 63 char enable[1];
sarahmarshy 8:80048194de79 64 sprintf(enable,"%d",on);
sarahmarshy 8:80048194de79 65 char modestr[1];
sarahmarshy 8:80048194de79 66 sprintf(modestr,"%d",mode);
sarahmarshy 8:80048194de79 67 string mode_command = "AT+CWDHCP="+string(modestr)+","+string(enable);
sarahmarshy 8:80048194de79 68 return (atParser.send(mode_command.c_str()) && atParser.recv("OK"));
sarahmarshy 8:80048194de79 69 }
sarahmarshy 8:80048194de79 70
sarahmarshy 8:80048194de79 71 bool ESP8266::connect(const char *ap, const char *passPhrase)
sarahmarshy 8:80048194de79 72 {
sarahmarshy 8:80048194de79 73 string connect_command = "AT+CWJAP=\""+(string)ap+"\",\""+(string)passPhrase+"\"";
sam_grove 9:dcf3aa250bc1 74 return (atParser.send(connect_command.c_str()) && atParser.recv("OK"));
sarahmarshy 8:80048194de79 75 }
sarahmarshy 8:80048194de79 76
sarahmarshy 8:80048194de79 77 bool ESP8266::disconnect(void)
sarahmarshy 8:80048194de79 78 {
sarahmarshy 8:80048194de79 79 return (atParser.send("AT+CWQAP") && atParser.recv("OK"));
sarahmarshy 8:80048194de79 80 }
sarahmarshy 8:80048194de79 81
sarahmarshy 8:80048194de79 82 bool ESP8266::getIPAddress(char* ip)
sarahmarshy 8:80048194de79 83 {
ohneta 14:71474261a9d7 84 return (atParser.send("AT+CIPSTA?") && atParser.recv("+CIPSTA:ip:\"%[^\"]\"", ip));
ohneta 14:71474261a9d7 85
sarahmarshy 8:80048194de79 86 }
sam_grove 9:dcf3aa250bc1 87
sam_grove 9:dcf3aa250bc1 88 bool ESP8266::isConnected(void)
sarahmarshy 8:80048194de79 89 {
sam_grove 9:dcf3aa250bc1 90 char* ip = "";
sarahmarshy 8:80048194de79 91 return getIPAddress(ip);
sarahmarshy 8:80048194de79 92 }
sam_grove 9:dcf3aa250bc1 93
sam_grove 9:dcf3aa250bc1 94 bool ESP8266::openSocket(string sockType, int id, int port, const char* addr)
sarahmarshy 8:80048194de79 95 {
sarahmarshy 8:80048194de79 96 //IDs only 0-4
sam_grove 9:dcf3aa250bc1 97 if(id > 4) {
sarahmarshy 8:80048194de79 98 return false;
sam_grove 9:dcf3aa250bc1 99 }
sarahmarshy 8:80048194de79 100 char portstr[5];
sarahmarshy 8:80048194de79 101 char idstr[2];
sarahmarshy 8:80048194de79 102 sprintf(idstr,"%d",id);
sarahmarshy 8:80048194de79 103 sprintf(portstr, "%d", port);
sarahmarshy 8:80048194de79 104
sarahmarshy 8:80048194de79 105 string start_command = "AT+CIPSTART="+(string)idstr+",\""+sockType+"\",\""+(string)addr+"\","+(string)portstr;
sam_grove 9:dcf3aa250bc1 106 if (!(atParser.send(start_command.c_str()) && atParser.recv("OK"))) {
sarahmarshy 8:80048194de79 107 return false;//opening socket not succesful
sarahmarshy 8:80048194de79 108 }
sarahmarshy 8:80048194de79 109 return true;
sarahmarshy 8:80048194de79 110 }
sarahmarshy 8:80048194de79 111
sarahmarshy 8:80048194de79 112 bool ESP8266::sendData(int id, const void *data, uint32_t amount)
sarahmarshy 8:80048194de79 113 {
sarahmarshy 8:80048194de79 114 char idstr[2];
sarahmarshy 8:80048194de79 115 sprintf(idstr,"%d",id);
sarahmarshy 8:80048194de79 116 char lenstr[5];
sarahmarshy 8:80048194de79 117 sprintf(lenstr,"%d",(int)amount);
sam_grove 9:dcf3aa250bc1 118
sarahmarshy 8:80048194de79 119 string send_command = "AT+CIPSEND="+(string)idstr+","+(string)lenstr;
sarahmarshy 13:4c014a7f0c63 120 if(!atParser.send(send_command.c_str(),">")) {
sarahmarshy 8:80048194de79 121 return false;
sam_grove 9:dcf3aa250bc1 122 }
sarahmarshy 13:4c014a7f0c63 123 wait_ms(10);
sarahmarshy 8:80048194de79 124 atParser.write((char*)data, (int)amount);
sarahmarshy 13:4c014a7f0c63 125 wait_ms(10);
sarahmarshy 8:80048194de79 126 return true;
sarahmarshy 8:80048194de79 127 }
sarahmarshy 8:80048194de79 128
sarahmarshy 8:80048194de79 129 uint32_t ESP8266::recv(void *data, uint32_t amount)
sarahmarshy 8:80048194de79 130 {
sarahmarshy 8:80048194de79 131 int length;
sarahmarshy 8:80048194de79 132 int id;
ohneta 14:71474261a9d7 133
ohneta 14:71474261a9d7 134 if (!(atParser.recv("+IPD,%d,%d:", &id, &length) && atParser.read((char*)data, length))) {
sarahmarshy 8:80048194de79 135 return 0;
sarahmarshy 8:80048194de79 136 }
ohneta 14:71474261a9d7 137
ohneta 14:71474261a9d7 138 char idstr[2];
ohneta 14:71474261a9d7 139 sprintf(idstr, "%d", id);
ohneta 14:71474261a9d7 140 string close_command = (string)idstr + ",CLOSED";
ohneta 14:71474261a9d7 141 atParser.recv(close_command.c_str());
ohneta 14:71474261a9d7 142
sam_grove 9:dcf3aa250bc1 143 return length;
sarahmarshy 8:80048194de79 144 }
sam_grove 9:dcf3aa250bc1 145
sam_grove 9:dcf3aa250bc1 146 bool ESP8266::close(int id)
sarahmarshy 8:80048194de79 147 {
ohneta 15:1ff5d44d5e30 148 // if status = Disconnected , port was closed.
ohneta 15:1ff5d44d5e30 149 {
ohneta 15:1ff5d44d5e30 150 int status;
ohneta 15:1ff5d44d5e30 151 atParser.send("AT+CIPSTATUS");
ohneta 15:1ff5d44d5e30 152 atParser.recv("STATUS:%d", &status);
ohneta 15:1ff5d44d5e30 153 atParser.recv("OK");
ohneta 15:1ff5d44d5e30 154 if (status == 4) {
ohneta 15:1ff5d44d5e30 155 return true;
ohneta 15:1ff5d44d5e30 156 }
ohneta 15:1ff5d44d5e30 157 }
ohneta 15:1ff5d44d5e30 158
ohneta 15:1ff5d44d5e30 159
sarahmarshy 8:80048194de79 160 //IDs only 0-4
sam_grove 9:dcf3aa250bc1 161 if(id > 4) {
sarahmarshy 8:80048194de79 162 return false;
sam_grove 9:dcf3aa250bc1 163 }
sarahmarshy 8:80048194de79 164 char idstr[2];
sarahmarshy 8:80048194de79 165 sprintf(idstr,"%d",id);
sam_grove 9:dcf3aa250bc1 166 string close_command = "AT+CIPCLOSE="+(string)idstr;
ohneta 14:71474261a9d7 167 string closed_response = (string)idstr + ",CLOSED OK";
sam_grove 9:dcf3aa250bc1 168
ohneta 14:71474261a9d7 169 return (atParser.send(close_command.c_str()) && atParser.recv(closed_response.c_str()));
sarahmarshy 8:80048194de79 170 }
sam_grove 9:dcf3aa250bc1 171
sarahmarshy 8:80048194de79 172 void ESP8266::setTimeout(uint32_t timeout_ms)
sarahmarshy 8:80048194de79 173 {
sarahmarshy 8:80048194de79 174 atParser.setTimeout(timeout_ms);
sam_grove 9:dcf3aa250bc1 175 }