Miguel Maldonado / ESP01

Libreria basica para el manejo del ESP01

Dependents:   Gateway_Cotosys Gateway_Cotosys_os5

ESP01.cpp@9:21290fc75c17, 2020-01-06 (annotated)

Committer:
Thrillex13
Date:
Mon Jan 06 04:39:26 2020 +0000
Revision:
9:21290fc75c17
Parent:
8:ef9014a530cf 
Se arreglo la funcion ReceiveSingleReply para evitar que se quede atascado en un loop.

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 8:ef9014a530cf 45 bool ended = 0;
Thrillex13 8:ef9014a530cf 46 char c;
Thrillex13 8:ef9014a530cf 47
Thrillex13 6:54b89962c798 48 strcpy(r, "");
Thrillex13 6:54b89962c798 49 t.start();
Thrillex13 8:ef9014a530cf 50 while(!ended) {
Thrillex13 6:54b89962c798 51 if(comm.readable()) {
Thrillex13 8:ef9014a530cf 52 c = comm.getc();
Thrillex13 8:ef9014a530cf 53 AddChar(r, c);
Thrillex13 6:54b89962c798 54 t.start();
Thrillex13 6:54b89962c798 55 }
Thrillex13 8:ef9014a530cf 56 if(t.read_ms() > to) {
Thrillex13 8:ef9014a530cf 57 ended = 1;
Thrillex13 8:ef9014a530cf 58 }
Thrillex13 8:ef9014a530cf 59 }
Thrillex13 8:ef9014a530cf 60
Thrillex13 6:54b89962c798 61 AddChar(r, '\0');
Thrillex13 6:54b89962c798 62 return r[0] != '\0';
Thrillex13 6:54b89962c798 63 }
Thrillex13 6:54b89962c798 64
Thrillex13 6:54b89962c798 65 // Gets the AP list. Parameter: the string to receive the list
Thrillex13 7:8c6f56470ba7 66 bool ESP01::GetList(char *l)
Thrillex13 7:8c6f56470ba7 67 {
Thrillex13 6:54b89962c798 68 SendCMD("AT+CWLAP");
Thrillex13 6:54b89962c798 69 return RcvReply(l, 5000); // Needs big timeout because it takes long to start replying
Thrillex13 6:54b89962c798 70 }
Thrillex13 6:54b89962c798 71
Thrillex13 6:54b89962c798 72 // Joins a Wifi AP. Parameters: SSID and Password (strings)
Thrillex13 7:8c6f56470ba7 73 void ESP01::Join(char *id, char *pwd)
Thrillex13 7:8c6f56470ba7 74 {
Thrillex13 6:54b89962c798 75 char cmd[255];
Thrillex13 6:54b89962c798 76 sprintf(cmd, "AT+CWJAP=\"%s\",\"%s\"", id, pwd);
Thrillex13 6:54b89962c798 77 SendCMD(cmd);
Thrillex13 6:54b89962c798 78 }
Thrillex13 6:54b89962c798 79
Thrillex13 6:54b89962c798 80 // Gets ESP IP. Parameter: string to contain IP
Thrillex13 7:8c6f56470ba7 81 bool ESP01::GetIP(char *ip)
Thrillex13 7:8c6f56470ba7 82 {
Thrillex13 6:54b89962c798 83 SendCMD("AT+CIFSR");
Thrillex13 9:21290fc75c17 84 return RcvReply(ip, 3000);
Thrillex13 6:54b89962c798 85 }
Thrillex13 6:54b89962c798 86
Thrillex13 6:54b89962c798 87 //Defines wifi mode; Parameter: mode; 1= STA, 2= AP, 3=both
Thrillex13 7:8c6f56470ba7 88 void ESP01::SetMode(WiFiMode mode)
Thrillex13 7:8c6f56470ba7 89 {
Thrillex13 6:54b89962c798 90 char cmd[15];
Thrillex13 6:54b89962c798 91 strcpy(cmd, "AT+CWMODE=");
Thrillex13 8:ef9014a530cf 92 AddChar(cmd, mode + '0'); // // Converts number into corresponding ASCII character
Thrillex13 6:54b89962c798 93 SendCMD(cmd);
Thrillex13 6:54b89962c798 94 }
Thrillex13 6:54b89962c798 95
Thrillex13 6:54b89962c798 96 // Quits the AP
Thrillex13 7:8c6f56470ba7 97 void ESP01::Quit(void)
Thrillex13 7:8c6f56470ba7 98 {
Thrillex13 6:54b89962c798 99 SendCMD("AT+CWQAP");
Thrillex13 6:54b89962c798 100 }
Thrillex13 6:54b89962c798 101
Thrillex13 6:54b89962c798 102 // Sets single connection
Thrillex13 7:8c6f56470ba7 103 void ESP01::SetSingle(void)
Thrillex13 7:8c6f56470ba7 104 {
Thrillex13 6:54b89962c798 105 SendCMD("AT+CIPMUX=0");
Thrillex13 6:54b89962c798 106 }
Thrillex13 6:54b89962c798 107
Thrillex13 6:54b89962c798 108 // Sets multiple connection
Thrillex13 7:8c6f56470ba7 109 void ESP01::SetMultiple(void)
Thrillex13 7:8c6f56470ba7 110 {
Thrillex13 6:54b89962c798 111 SendCMD("AT+CIPMUX=1");
Thrillex13 6:54b89962c798 112 }
Thrillex13 6:54b89962c798 113
Thrillex13 6:54b89962c798 114 // Gets connection status. Parameter: string to contain status
Thrillex13 7:8c6f56470ba7 115 bool ESP01::GetConnStatus(char * st)
Thrillex13 7:8c6f56470ba7 116 {
Thrillex13 6:54b89962c798 117 SendCMD("AT+CIPSTATUS");
Thrillex13 6:54b89962c798 118 return RcvReply(st, 2000);
Thrillex13 6:54b89962c798 119 }
Thrillex13 6:54b89962c798 120
Thrillex13 6:54b89962c798 121 // Starts server mode. Parameter: port to be used
Thrillex13 7:8c6f56470ba7 122 void ESP01::StartServerMode(int port)
Thrillex13 7:8c6f56470ba7 123 {
Thrillex13 6:54b89962c798 124 char rs[25];
Thrillex13 6:54b89962c798 125 sprintf(rs, "AT+CIPSERVER=1,%d", port);
Thrillex13 6:54b89962c798 126 SendCMD(rs);
Thrillex13 6:54b89962c798 127 }
Thrillex13 6:54b89962c798 128
Thrillex13 6:54b89962c798 129 // Close server mode.
Thrillex13 7:8c6f56470ba7 130 void ESP01::CloseServerMode(void)
Thrillex13 7:8c6f56470ba7 131 {
Thrillex13 6:54b89962c798 132 SendCMD("AT+CIPSERVER=0");
Thrillex13 6:54b89962c798 133 }
Thrillex13 6:54b89962c798 134
Thrillex13 7:8c6f56470ba7 135 void ESP01::setTransparent(void)
Thrillex13 7:8c6f56470ba7 136 {
Thrillex13 6:54b89962c798 137 SendCMD("AT+CIPMODE=0");
Thrillex13 6:54b89962c798 138 }
Thrillex13 6:54b89962c798 139
Thrillex13 7:8c6f56470ba7 140 void ESP01::startTCPConn(char *IP, int port)
Thrillex13 7:8c6f56470ba7 141 {
Thrillex13 6:54b89962c798 142 char rs[100];
Thrillex13 6:54b89962c798 143 sprintf(rs, "AT+CIPSTART=0,\"TCP\",\"%s\",%d", IP, port);
Thrillex13 6:54b89962c798 144 SendCMD(rs);
Thrillex13 6:54b89962c798 145 }
Thrillex13 6:54b89962c798 146
Thrillex13 7:8c6f56470ba7 147 void ESP01::sendURL(char *URL, char* IP, char *command)
Thrillex13 7:8c6f56470ba7 148 {
Thrillex13 6:54b89962c798 149 char snd[20], http_cmd[300];
Thrillex13 6:54b89962c798 150
Thrillex13 6:54b89962c798 151 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 152 sprintf(snd,"AT+CIPSEND=0,%d",strlen(http_cmd));
Thrillex13 6:54b89962c798 153 strcpy(command, http_cmd);
Thrillex13 7:8c6f56470ba7 154
Thrillex13 6:54b89962c798 155 SendCMD(snd);
Thrillex13 6:54b89962c798 156 wait(1);
Thrillex13 6:54b89962c798 157 SendCMD(http_cmd);
Thrillex13 6:54b89962c798 158 }
Thrillex13 7:8c6f56470ba7 159
Thrillex13 7:8c6f56470ba7 160 void ESP01::deepsleep(size_t ms)
Thrillex13 7:8c6f56470ba7 161 {
Thrillex13 6:54b89962c798 162 char snd[20];
Thrillex13 6:54b89962c798 163 sprintf(snd, "AT+GSLP=%d", ms);
Thrillex13 6:54b89962c798 164 SendCMD(snd);
Thrillex13 6:54b89962c798 165 }
Thrillex13 6:54b89962c798 166
Thrillex13 6:54b89962c798 167 //------------------ FUNCIONES QUE YO HE AGREGADO ------------------//
Thrillex13 6:54b89962c798 168 // Starts SmartConfig
Thrillex13 7:8c6f56470ba7 169 void ESP01::StartSmartConfig(void)
Thrillex13 7:8c6f56470ba7 170 {
Thrillex13 7:8c6f56470ba7 171 SendCMD("AT+CWSTARTSMART=1");
Thrillex13 6:54b89962c798 172 }
Thrillex13 6:54b89962c798 173
Thrillex13 6:54b89962c798 174 //Disable Echo
Thrillex13 7:8c6f56470ba7 175 void ESP01::DisableEcho(void)
Thrillex13 7:8c6f56470ba7 176 {
Thrillex13 6:54b89962c798 177 SendCMD("ATE0");
Thrillex13 6:54b89962c798 178 }
Thrillex13 6:54b89962c798 179
Thrillex13 6:54b89962c798 180 //Enable DHCP
Thrillex13 7:8c6f56470ba7 181 void ESP01::EnableDHCP(void)
Thrillex13 7:8c6f56470ba7 182 {
Thrillex13 6:54b89962c798 183 SendCMD("AT+CWDHCP=1,1");
Thrillex13 6:54b89962c798 184 }
Thrillex13 6:54b89962c798 185
Thrillex13 6:54b89962c798 186 // Receive reply until no character is received after a given timeout in miliseconds
Thrillex13 7:8c6f56470ba7 187 void ESP01::RcvSingleReply(char * r)
Thrillex13 7:8c6f56470ba7 188 {
Thrillex13 6:54b89962c798 189 bool ended = 0;
Thrillex13 6:54b89962c798 190 char c;
Thrillex13 9:21290fc75c17 191 Timer t;
Thrillex13 7:8c6f56470ba7 192
Thrillex13 6:54b89962c798 193 strcpy(r, "");
Thrillex13 9:21290fc75c17 194 t.start();
Thrillex13 6:54b89962c798 195 while(!ended) {
Thrillex13 6:54b89962c798 196 if(comm.readable()) {
Thrillex13 6:54b89962c798 197 c = comm.getc();
Thrillex13 6:54b89962c798 198 AddChar(r, c);
Thrillex13 6:54b89962c798 199 }
Thrillex13 9:21290fc75c17 200 if((c==0x0D)||(t.read_ms() > 5000)) {
Thrillex13 7:8c6f56470ba7 201 ended = 1;
Thrillex13 6:54b89962c798 202 }
Thrillex13 6:54b89962c798 203 }
Thrillex13 6:54b89962c798 204 //AddChar(r, 0x00);
Thrillex13 6:54b89962c798 205 }
Thrillex13 6:54b89962c798 206
Thrillex13 6:54b89962c798 207 // Gets connection status code. Parameter: string to contain status
Thrillex13 7:8c6f56470ba7 208 void ESP01::GetConnStatusCode(char * st)
Thrillex13 7:8c6f56470ba7 209 {
Thrillex13 8:ef9014a530cf 210 char cmd[25];
Thrillex13 6:54b89962c798 211 strcpy(cmd, "AT+CIPSTATUS");
Thrillex13 6:54b89962c798 212 SendCMD(cmd);
Thrillex13 6:54b89962c798 213 RcvSingleReply(st);
Thrillex13 6:54b89962c798 214 }
Thrillex13 7:8c6f56470ba7 215
Thrillex13 7:8c6f56470ba7 216 // Set the Maximum Connections Allowed by Server. Parameter: maximum number of connections
Thrillex13 7:8c6f56470ba7 217 void ESP01::SetMaxTCPConn(int maxconn)
Thrillex13 7:8c6f56470ba7 218 {
Thrillex13 7:8c6f56470ba7 219 char rs[50];
Thrillex13 7:8c6f56470ba7 220 sprintf(rs, "AT+CIPSERVERMAXCONN=%d", maxconn);
Thrillex13 7:8c6f56470ba7 221 SendCMD(rs);
Thrillex13 7:8c6f56470ba7 222 }
Thrillex13 7:8c6f56470ba7 223
Thrillex13 7:8c6f56470ba7 224 // Returns true if data has been received. Parameter: string to contain data received
Thrillex13 7:8c6f56470ba7 225 bool ESP01::TCPDataAvailable(char *data)
Thrillex13 7:8c6f56470ba7 226 {
Thrillex13 7:8c6f56470ba7 227 return RcvReply(data, 500);
Thrillex13 7:8c6f56470ba7 228 }
Thrillex13 7:8c6f56470ba7 229
Thrillex13 7:8c6f56470ba7 230 // Send TCP Data. Parameter:
Thrillex13 7:8c6f56470ba7 231 void ESP01::SendTCPData(int socket,int len, char *data)
Thrillex13 7:8c6f56470ba7 232 {
Thrillex13 7:8c6f56470ba7 233 char i;
Thrillex13 7:8c6f56470ba7 234 char rs[50];
Thrillex13 7:8c6f56470ba7 235 sprintf(rs, "AT+CIPSEND=%d,%d",socket,len);
Thrillex13 7:8c6f56470ba7 236 SendCMD(rs);
Thrillex13 7:8c6f56470ba7 237 wait(1);
Thrillex13 7:8c6f56470ba7 238 SendCMD(data);
Thrillex13 7:8c6f56470ba7 239 }