Miguel Maldonado / ESP01

Libreria basica para el manejo del ESP01

Dependents:   Gateway_Cotosys Gateway_Cotosys_os5

ESP01.cpp@7:8c6f56470ba7, 2019-06-11 (annotated)

Committer:
Thrillex13
Date:
Tue Jun 11 00:22:45 2019 +0000
Revision:
7:8c6f56470ba7
Parent:
6:54b89962c798
Child:
8:ef9014a530cf
Function SendTCPData was added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Thrillex13 6:54b89962c798 1 #include "ESP01.h"
Thrillex13 6:54b89962c798 2
Thrillex13 6:54b89962c798 3 // Constructor
Thrillex13 7:8c6f56470ba7 4 ESP01::ESP01(PinName tx, PinName rx, int br) : comm(tx, rx)
Thrillex13 7:8c6f56470ba7 5 {
Thrillex13 6:54b89962c798 6 comm.baud(br);
Thrillex13 6:54b89962c798 7 }
Thrillex13 6:54b89962c798 8
Thrillex13 6:54b89962c798 9 // Destructor
Thrillex13 6:54b89962c798 10 ESP01::~ESP01() { }
Thrillex13 6:54b89962c798 11
Thrillex13 6:54b89962c798 12 // Add <CR> + <LF> at the end of the string
Thrillex13 7:8c6f56470ba7 13 void ESP01::AddEOL(char * s)
Thrillex13 7:8c6f56470ba7 14 {
Thrillex13 6:54b89962c798 15 char k = strlen(s); // Finds position of NULL character
Thrillex13 6:54b89962c798 16 s[k] = '\r'; // switch NULL for <CR>
Thrillex13 6:54b89962c798 17 s[k + 1] = '\n'; // Add <LF>
Thrillex13 6:54b89962c798 18 s[k + 2] = '\0'; // Add NULL at the end
Thrillex13 6:54b89962c798 19 }
Thrillex13 6:54b89962c798 20
Thrillex13 6:54b89962c798 21 // Add one ASCII character at the end of the string
Thrillex13 7:8c6f56470ba7 22 void ESP01::AddChar(char * s, char c)
Thrillex13 7:8c6f56470ba7 23 {
Thrillex13 6:54b89962c798 24 char k = strlen(s);
Thrillex13 6:54b89962c798 25 s[k] = c;
Thrillex13 6:54b89962c798 26 s[k + 1] = '\0';
Thrillex13 6:54b89962c798 27 }
Thrillex13 6:54b89962c798 28
Thrillex13 6:54b89962c798 29 // Sends command to ESP01. Receives the command string
Thrillex13 7:8c6f56470ba7 30 void ESP01::SendCMD(char* s)
Thrillex13 7:8c6f56470ba7 31 {
Thrillex13 6:54b89962c798 32 comm.printf("%s%s", s, CMD_END);
Thrillex13 6:54b89962c798 33 }
Thrillex13 6:54b89962c798 34
Thrillex13 6:54b89962c798 35 // Resets the ESP01
Thrillex13 7:8c6f56470ba7 36 void ESP01::Reset(void)
Thrillex13 7:8c6f56470ba7 37 {
Thrillex13 6:54b89962c798 38 SendCMD("AT+RST");
Thrillex13 6:54b89962c798 39 }
Thrillex13 6:54b89962c798 40
Thrillex13 6:54b89962c798 41 // Receive reply until no character is received after a given timeout in miliseconds
Thrillex13 7:8c6f56470ba7 42 bool ESP01::RcvReply(char* r, int to)
Thrillex13 7:8c6f56470ba7 43 {
Thrillex13 6:54b89962c798 44 Timer t;
Thrillex13 6:54b89962c798 45 strcpy(r, "");
Thrillex13 6:54b89962c798 46 t.start();
Thrillex13 7:8c6f56470ba7 47
Thrillex13 6:54b89962c798 48 do {
Thrillex13 6:54b89962c798 49 if(comm.readable()) {
Thrillex13 6:54b89962c798 50 AddChar(r, comm.getc());
Thrillex13 6:54b89962c798 51 t.start();
Thrillex13 6:54b89962c798 52 }
Thrillex13 6:54b89962c798 53 } while(t.read_ms() < to);
Thrillex13 6:54b89962c798 54
Thrillex13 6:54b89962c798 55 AddChar(r, '\0');
Thrillex13 6:54b89962c798 56 return r[0] != '\0';
Thrillex13 6:54b89962c798 57 }
Thrillex13 6:54b89962c798 58
Thrillex13 6:54b89962c798 59 // Gets the AP list. Parameter: the string to receive the list
Thrillex13 7:8c6f56470ba7 60 bool ESP01::GetList(char *l)
Thrillex13 7:8c6f56470ba7 61 {
Thrillex13 6:54b89962c798 62 SendCMD("AT+CWLAP");
Thrillex13 6:54b89962c798 63 return RcvReply(l, 5000); // Needs big timeout because it takes long to start replying
Thrillex13 6:54b89962c798 64 }
Thrillex13 6:54b89962c798 65
Thrillex13 6:54b89962c798 66 // Joins a Wifi AP. Parameters: SSID and Password (strings)
Thrillex13 7:8c6f56470ba7 67 void ESP01::Join(char *id, char *pwd)
Thrillex13 7:8c6f56470ba7 68 {
Thrillex13 6:54b89962c798 69 char cmd[255];
Thrillex13 6:54b89962c798 70 sprintf(cmd, "AT+CWJAP=\"%s\",\"%s\"", id, pwd);
Thrillex13 6:54b89962c798 71 SendCMD(cmd);
Thrillex13 6:54b89962c798 72 }
Thrillex13 6:54b89962c798 73
Thrillex13 6:54b89962c798 74 // Gets ESP IP. Parameter: string to contain IP
Thrillex13 7:8c6f56470ba7 75 bool ESP01::GetIP(char *ip)
Thrillex13 7:8c6f56470ba7 76 {
Thrillex13 6:54b89962c798 77 SendCMD("AT+CIFSR");
Thrillex13 6:54b89962c798 78 return RcvReply(ip, 2000);
Thrillex13 6:54b89962c798 79 }
Thrillex13 6:54b89962c798 80
Thrillex13 6:54b89962c798 81 //Defines wifi mode; Parameter: mode; 1= STA, 2= AP, 3=both
Thrillex13 7:8c6f56470ba7 82 void ESP01::SetMode(WiFiMode mode)
Thrillex13 7:8c6f56470ba7 83 {
Thrillex13 6:54b89962c798 84 char cmd[15];
Thrillex13 6:54b89962c798 85 strcpy(cmd, "AT+CWMODE=");
Thrillex13 6:54b89962c798 86 AddChar(cmd, mode + '0'); // Completes command string
Thrillex13 6:54b89962c798 87 SendCMD(cmd);
Thrillex13 6:54b89962c798 88 }
Thrillex13 6:54b89962c798 89
Thrillex13 6:54b89962c798 90 // Quits the AP
Thrillex13 7:8c6f56470ba7 91 void ESP01::Quit(void)
Thrillex13 7:8c6f56470ba7 92 {
Thrillex13 6:54b89962c798 93 SendCMD("AT+CWQAP");
Thrillex13 6:54b89962c798 94 }
Thrillex13 6:54b89962c798 95
Thrillex13 6:54b89962c798 96 // Sets single connection
Thrillex13 7:8c6f56470ba7 97 void ESP01::SetSingle(void)
Thrillex13 7:8c6f56470ba7 98 {
Thrillex13 6:54b89962c798 99 SendCMD("AT+CIPMUX=0");
Thrillex13 6:54b89962c798 100 }
Thrillex13 6:54b89962c798 101
Thrillex13 6:54b89962c798 102 // Sets multiple connection
Thrillex13 7:8c6f56470ba7 103 void ESP01::SetMultiple(void)
Thrillex13 7:8c6f56470ba7 104 {
Thrillex13 6:54b89962c798 105 SendCMD("AT+CIPMUX=1");
Thrillex13 6:54b89962c798 106 }
Thrillex13 6:54b89962c798 107
Thrillex13 6:54b89962c798 108 // Gets connection status. Parameter: string to contain status
Thrillex13 7:8c6f56470ba7 109 bool ESP01::GetConnStatus(char * st)
Thrillex13 7:8c6f56470ba7 110 {
Thrillex13 6:54b89962c798 111 SendCMD("AT+CIPSTATUS");
Thrillex13 6:54b89962c798 112 return RcvReply(st, 2000);
Thrillex13 6:54b89962c798 113 }
Thrillex13 6:54b89962c798 114
Thrillex13 6:54b89962c798 115 // Starts server mode. Parameter: port to be used
Thrillex13 7:8c6f56470ba7 116 void ESP01::StartServerMode(int port)
Thrillex13 7:8c6f56470ba7 117 {
Thrillex13 6:54b89962c798 118 char rs[25];
Thrillex13 6:54b89962c798 119 sprintf(rs, "AT+CIPSERVER=1,%d", port);
Thrillex13 6:54b89962c798 120 SendCMD(rs);
Thrillex13 6:54b89962c798 121 }
Thrillex13 6:54b89962c798 122
Thrillex13 6:54b89962c798 123 // Close server mode.
Thrillex13 7:8c6f56470ba7 124 void ESP01::CloseServerMode(void)
Thrillex13 7:8c6f56470ba7 125 {
Thrillex13 6:54b89962c798 126 SendCMD("AT+CIPSERVER=0");
Thrillex13 6:54b89962c798 127 }
Thrillex13 6:54b89962c798 128
Thrillex13 7:8c6f56470ba7 129 void ESP01::setTransparent(void)
Thrillex13 7:8c6f56470ba7 130 {
Thrillex13 6:54b89962c798 131 SendCMD("AT+CIPMODE=0");
Thrillex13 6:54b89962c798 132 }
Thrillex13 6:54b89962c798 133
Thrillex13 7:8c6f56470ba7 134 void ESP01::startTCPConn(char *IP, int port)
Thrillex13 7:8c6f56470ba7 135 {
Thrillex13 6:54b89962c798 136 char rs[100];
Thrillex13 6:54b89962c798 137 sprintf(rs, "AT+CIPSTART=0,\"TCP\",\"%s\",%d", IP, port);
Thrillex13 6:54b89962c798 138 SendCMD(rs);
Thrillex13 6:54b89962c798 139 }
Thrillex13 6:54b89962c798 140
Thrillex13 7:8c6f56470ba7 141 void ESP01::sendURL(char *URL, char* IP, char *command)
Thrillex13 7:8c6f56470ba7 142 {
Thrillex13 6:54b89962c798 143 char snd[20], http_cmd[300];
Thrillex13 6:54b89962c798 144
Thrillex13 6:54b89962c798 145 sprintf(http_cmd, "GET %s HTTP/1.1%sHost: %s%sConnection: close%s%s", URL, CMD_END, IP, CMD_END, CMD_END, CMD_END);
Thrillex13 6:54b89962c798 146 sprintf(snd,"AT+CIPSEND=0,%d",strlen(http_cmd));
Thrillex13 6:54b89962c798 147 strcpy(command, http_cmd);
Thrillex13 7:8c6f56470ba7 148
Thrillex13 6:54b89962c798 149 SendCMD(snd);
Thrillex13 6:54b89962c798 150 wait(1);
Thrillex13 6:54b89962c798 151 SendCMD(http_cmd);
Thrillex13 6:54b89962c798 152 }
Thrillex13 7:8c6f56470ba7 153
Thrillex13 7:8c6f56470ba7 154 void ESP01::deepsleep(size_t ms)
Thrillex13 7:8c6f56470ba7 155 {
Thrillex13 6:54b89962c798 156 char snd[20];
Thrillex13 6:54b89962c798 157 sprintf(snd, "AT+GSLP=%d", ms);
Thrillex13 6:54b89962c798 158 SendCMD(snd);
Thrillex13 6:54b89962c798 159 }
Thrillex13 6:54b89962c798 160
Thrillex13 6:54b89962c798 161 //------------------ FUNCIONES QUE YO HE AGREGADO ------------------//
Thrillex13 6:54b89962c798 162 // Starts SmartConfig
Thrillex13 7:8c6f56470ba7 163 void ESP01::StartSmartConfig(void)
Thrillex13 7:8c6f56470ba7 164 {
Thrillex13 7:8c6f56470ba7 165 SendCMD("AT+CWSTARTSMART=1");
Thrillex13 6:54b89962c798 166 }
Thrillex13 6:54b89962c798 167
Thrillex13 6:54b89962c798 168 //Disable Echo
Thrillex13 7:8c6f56470ba7 169 void ESP01::DisableEcho(void)
Thrillex13 7:8c6f56470ba7 170 {
Thrillex13 6:54b89962c798 171 SendCMD("ATE0");
Thrillex13 6:54b89962c798 172 }
Thrillex13 6:54b89962c798 173
Thrillex13 6:54b89962c798 174 //Enable DHCP
Thrillex13 7:8c6f56470ba7 175 void ESP01::EnableDHCP(void)
Thrillex13 7:8c6f56470ba7 176 {
Thrillex13 6:54b89962c798 177 SendCMD("AT+CWDHCP=1,1");
Thrillex13 6:54b89962c798 178 }
Thrillex13 6:54b89962c798 179
Thrillex13 6:54b89962c798 180 // Receive reply until no character is received after a given timeout in miliseconds
Thrillex13 7:8c6f56470ba7 181 void ESP01::RcvSingleReply(char * r)
Thrillex13 7:8c6f56470ba7 182 {
Thrillex13 6:54b89962c798 183 bool ended = 0;
Thrillex13 6:54b89962c798 184 char c;
Thrillex13 7:8c6f56470ba7 185
Thrillex13 6:54b89962c798 186 strcpy(r, "");
Thrillex13 6:54b89962c798 187 while(!ended) {
Thrillex13 6:54b89962c798 188 if(comm.readable()) {
Thrillex13 6:54b89962c798 189 c = comm.getc();
Thrillex13 6:54b89962c798 190 AddChar(r, c);
Thrillex13 6:54b89962c798 191 }
Thrillex13 6:54b89962c798 192 if(c == 0x0D) {
Thrillex13 7:8c6f56470ba7 193 ended = 1;
Thrillex13 6:54b89962c798 194 }
Thrillex13 6:54b89962c798 195 }
Thrillex13 6:54b89962c798 196 //AddChar(r, 0x00);
Thrillex13 6:54b89962c798 197 }
Thrillex13 6:54b89962c798 198
Thrillex13 6:54b89962c798 199 // Gets connection status code. Parameter: string to contain status
Thrillex13 7:8c6f56470ba7 200 void ESP01::GetConnStatusCode(char * st)
Thrillex13 7:8c6f56470ba7 201 {
Thrillex13 6:54b89962c798 202 char cmd[15];
Thrillex13 6:54b89962c798 203 strcpy(cmd, "AT+CIPSTATUS");
Thrillex13 6:54b89962c798 204 SendCMD(cmd);
Thrillex13 6:54b89962c798 205 RcvSingleReply(st);
Thrillex13 6:54b89962c798 206 }
Thrillex13 7:8c6f56470ba7 207
Thrillex13 7:8c6f56470ba7 208 // Set the Maximum Connections Allowed by Server. Parameter: maximum number of connections
Thrillex13 7:8c6f56470ba7 209 void ESP01::SetMaxTCPConn(int maxconn)
Thrillex13 7:8c6f56470ba7 210 {
Thrillex13 7:8c6f56470ba7 211 char rs[50];
Thrillex13 7:8c6f56470ba7 212 sprintf(rs, "AT+CIPSERVERMAXCONN=%d", maxconn);
Thrillex13 7:8c6f56470ba7 213 SendCMD(rs);
Thrillex13 7:8c6f56470ba7 214 }
Thrillex13 7:8c6f56470ba7 215
Thrillex13 7:8c6f56470ba7 216 // Returns true if data has been received. Parameter: string to contain data received
Thrillex13 7:8c6f56470ba7 217 bool ESP01::TCPDataAvailable(char *data)
Thrillex13 7:8c6f56470ba7 218 {
Thrillex13 7:8c6f56470ba7 219 return RcvReply(data, 500);
Thrillex13 7:8c6f56470ba7 220 }
Thrillex13 7:8c6f56470ba7 221
Thrillex13 7:8c6f56470ba7 222 // Send TCP Data. Parameter:
Thrillex13 7:8c6f56470ba7 223 void ESP01::SendTCPData(int socket,int len, char *data)
Thrillex13 7:8c6f56470ba7 224 {
Thrillex13 7:8c6f56470ba7 225 char i;
Thrillex13 7:8c6f56470ba7 226 char rs[50];
Thrillex13 7:8c6f56470ba7 227 sprintf(rs, "AT+CIPSEND=%d,%d",socket,len);
Thrillex13 7:8c6f56470ba7 228 SendCMD(rs);
Thrillex13 7:8c6f56470ba7 229 wait(1);
Thrillex13 7:8c6f56470ba7 230 SendCMD(data);
Thrillex13 7:8c6f56470ba7 231 }