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ESP8266AT.cpp
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ESP8266AT.cpp
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#include <ESP8266AT.h>
void ESP8266AT::sendSocket(String data) {
Serial1.print(data);
}
bool ESP8266AT::sendSocket(String *data, int count) {
rx_empty();
// String tar[] = {"STATUS:3","OK", "no"};
// if (recvFind(tar, 10)){return;}
int i = 0;
while(i<count){
Serial1.print(data[i]);
Serial.print(data[i]);
++i;
}
return recvFind("SEND OK", 5000);
}
void ESP8266AT::sendSocket(char data) {
Serial1.print(data);
}
void ESP8266AT::sendSocket(int data) {
Serial1.print(data);
}
void ESP8266AT::rx_empty(void){
while(Serial1.available() > 0) {
Serial1.read();
}
}
void ESP8266AT::sendHandshake(char hostname[]) {
Serial1.println(F("GET /socket.io/1/?transport=polling&b64=true HTTP/1.1"));
Serial1.print(F("Host: "));
Serial1.println(hostname);
Serial1.println(F("Origin: Arduino"));
Serial1.println("");
Serial.println("Handshake Sent");
return;
}
void ESP8266AT::readHandshake(char sid[], char hostname[]) {
Serial1.print(F("GET /socket.io/1/websocket/?transport=websocket&b64=true&sid="));
Serial1.print(sid);
Serial1.println(F(" HTTP/1.1"));
Serial1.print(F("Host: "));
Serial1.println(hostname);
Serial1.println(F("Origin: ArduinoSocketIOClient"));
Serial1.print(F("Sec-WebSocket-Key: "));
Serial1.println(sid);
Serial1.println(F("Sec-WebSocket-Version: 13"));
Serial1.println(F("Upgrade: websocket")); // must be camelcase ?!
Serial1.println(F("Connection: Upgrade"));
Serial1.println("");
return;
}
bool ESP8266AT::connected(){
String data;
rx_empty();
Serial1.println("AT+CIPSTATUS");
String tar[] = {"STATUS:4", "ERROR", "no"};
return !recvFind(tar,60);
}
bool ESP8266AT::stop(){
rx_empty();
Serial1.println("AT+CIPCLOSE");
return recvFind("OK", 5000);
}
bool ESP8266AT::setup(int baud){
String data;
Serial1.begin(baud);
delay(100);
rx_empty();
Serial1.println("AT+CWMODE=1");
delay(100);
Serial1.println("AT+CIPMUX=0");
delay(100);
String tar[] = {"OK", "FAIL", "no"};
data = recvString(tar, 10000);
if (data.indexOf("OK") != -1) {
Serial.println("Ready!");
return true;
}
Serial.print("Oops!");
return false;
}
bool ESP8266AT::begin(String ssid, String pwd){
rx_empty();
String data;
Serial1.print("AT+CWJAP=\"");
Serial1.print(ssid);
Serial1.print("\",\"");
Serial1.print(pwd);
Serial1.println("\"");
String tar[] = {"OK", "FAIL", "no"};
data = recvString(tar, 10000);
if (data.indexOf("OK") != -1) {
Serial.println("Connected to AP");
return true;
}
Serial.print("Oops!");
return false;
}
bool ESP8266AT::SEND(int len){
rx_empty();
Serial1.print("AT+CIPSEND=");
Serial1.println(len);
if (recvFind(">", 10000)) {
return true;
}
stop();
return false;
}
bool ESP8266AT::connect(char addr[], int port){
String data;
String add = String(addr);
String por = String(port, DEC);
rx_empty();
Serial1.print("AT+CIPSTART=\"TCP\",\"");
Serial1.print(add);
Serial1.print("\",");
Serial1.println(por);
String tar[] = {"OK","ERROR", "ALREADY CONNECT", "no"};
// data = recvString("OK","ERROR", "ALREADY CONNECT", 10000);
data = recvString(tar, 10000);
if (data.indexOf("OK") != -1 || data.indexOf("ALREADY CONNECT") != -1) {
Serial.println("Connected to Server");
return true;
}
return false;
}
String ESP8266AT::recvString(String target, uint32_t timeout){
String data;
char a;
unsigned long start = millis();
while (millis() - start < timeout) {
while(Serial1.available() > 0) {
a = Serial1.read();
if(a == '\0') continue;
data += a;
}
if (data.indexOf(target) != -1) {
break;
}
}
return data;
}
String ESP8266AT::recvString(String *target, uint32_t timeout){
String data;
int i, x = 0;
char a;
unsigned long start = millis();
while (millis() - start < timeout) {
i =0;
while(Serial1.available() > 0) {
a = Serial1.read();
if(a == '\0') continue;
data += a;
}
while (target[i] != "no"){
if (data.indexOf(target[i]) != -1){
x = 1;
break;
}
i++;
}
if(x==1){break;}
}
return data;
}
bool ESP8266AT::recvFind(String target, uint32_t timeout){
String data_tmp;
data_tmp = recvString(target, timeout);
if (data_tmp.indexOf(target) != -1) {
return true;
}
return false;
}
bool ESP8266AT::recvFind(String *target, uint32_t timeout){
String data_tmp;
int i = 0;
data_tmp = recvString(*target, timeout);
while (target[i] != "no"){
if (data_tmp.indexOf(target[i]) != -1) {
return true;
}
i++;
}
return false;
}