Post Reopened by Michel Keijzers, per1234, jose can u c, gre_gor, sa_leinad

occurred Dec 21, 2017 at 3:06

Format code, fix typos

Source Link

edited Dec 20, 2017 at 13:53

per1234

4.3k
2
24
44

Receive data using esp8266ESP8266

I have connected esp8266ESP8266 to my Raspberry pi's wifiPi's WiFi network and assigned ana static IP.

My arduinoArduino code

#include "SoftwareSerial.h"

String ssid ="Rpi";
String password="raspberry";

SoftwareSerial esp(3, 2);// RX, TX

String server = "192.168.50.1"; //my Host 


void setup() {
  
  esp.begin(115200);
  
  Serial.begin(115200);

  connectWifi();
  
  httpget();
  
  delay(1000);

}
void connectWifi() {

String cmd = "AT+CWJAP=\"" +ssid+"\",\"" + password + "\"";

esp.println(cmd);

delay(4000);

if(esp.find("OK")) {

Serial.println("Connected!");

}
else {

Serial.println("Cannot connect to wifi ! Connecting again..."); }
connectWifi();

}
/////////////////////////////GET METHOD///////////////////////////////
void httpget() {
esp.println("AT+CIPSTART=\"TCP\",\"" + server + "\",1234");//start a TCP connection.

if( esp.find("OK")) {

Serial.println("TCP connection ready");

} delay(1000);
/*
String getRequest =
"GET " + uri + " HTTP/1.0\r\n" +
"Host: " + server + "\r\n" +
"Accept: *" + "/" + "*\r\n" +
"Content-Type: application/json\r\n" +
"\r\n";
*/
String sendCmd = "AT+CIPSEND=";

esp.print(sendCmd);

//esp.println(getRequest.length() );

delay(500);

if(esp.find(">")) { 
  Serial.println("Sending.."); 
//  esp.print(getRequest);
  
if( esp.find("SEND OK")) { 
  
Serial.println("Packet sent");

while (esp.available()) {

String response = esp.readString();

}
esp.println("AT+CIPCLOSE");

}
}
}

void loop() {
  httpget();
}

#include "SoftwareSerial.h"

String ssid = "Rpi";
String password = "raspberry";

SoftwareSerial esp(3, 2);// RX, TX

String server = "192.168.50.1"; //my Host


void setup() {
  esp.begin(115200);
  Serial.begin(115200);
  connectWifi();
  httpget();
  delay(1000);
}

void connectWifi() {
  String cmd = "AT+CWJAP=\"" + ssid + "\",\"" + password + "\"";
  esp.println(cmd);
  delay(4000);
  if (esp.find("OK")) {
    Serial.println("Connected!");
  }
  else {
    Serial.println("Cannot connect to wifi ! Connecting again...");
  }
  connectWifi();
}

/////////////////////////////GET METHOD///////////////////////////////
void httpget() {
  esp.println("AT+CIPSTART=\"TCP\",\"" + server + "\",1234");//start a TCP connection.
  if ( esp.find("OK")) {
    Serial.println("TCP connection ready");
  }
  delay(1000);
  /*
    String getRequest =
    "GET " + uri + " HTTP/1.0\r\n" +
    "Host: " + server + "\r\n" +
    "Accept: *" + "/" + "*\r\n" +
    "Content-Type: application/json\r\n" +
    "\r\n";
  */
  String sendCmd = "AT+CIPSEND=";
  esp.print(sendCmd);
  //esp.println(getRequest.length() );
  delay(500);
  if (esp.find(">")) {
    Serial.println("Sending..");
    //  esp.print(getRequest);
    if ( esp.find("SEND OK")) {
      Serial.println("Packet sent");
      while (esp.available()) {
        String response = esp.readString();
      }
      esp.println("AT+CIPCLOSE");
    }
  }
}

void loop() {
  httpget();
}

But I can not see it in my serial monitorSerial Monitor. Do I need to create a separate program for getting from wifiWiFi?

Thanks in advance.

Receive data using esp8266

I have connected esp8266 to my Raspberry pi's wifi network and assigned an static IP.

My arduino code

#include "SoftwareSerial.h"

String ssid ="Rpi";
String password="raspberry";

SoftwareSerial esp(3, 2);// RX, TX

String server = "192.168.50.1"; //my Host 


void setup() {
  
  esp.begin(115200);
  
  Serial.begin(115200);

  connectWifi();
  
  httpget();
  
  delay(1000);

}
void connectWifi() {

String cmd = "AT+CWJAP=\"" +ssid+"\",\"" + password + "\"";

esp.println(cmd);

delay(4000);

if(esp.find("OK")) {

Serial.println("Connected!");

}
else {

Serial.println("Cannot connect to wifi ! Connecting again..."); }
connectWifi();

}
/////////////////////////////GET METHOD///////////////////////////////
void httpget() {
esp.println("AT+CIPSTART=\"TCP\",\"" + server + "\",1234");//start a TCP connection.

if( esp.find("OK")) {

Serial.println("TCP connection ready");

} delay(1000);
/*
String getRequest =
"GET " + uri + " HTTP/1.0\r\n" +
"Host: " + server + "\r\n" +
"Accept: *" + "/" + "*\r\n" +
"Content-Type: application/json\r\n" +
"\r\n";
*/
String sendCmd = "AT+CIPSEND=";

esp.print(sendCmd);

//esp.println(getRequest.length() );

delay(500);

if(esp.find(">")) { 
  Serial.println("Sending.."); 
//  esp.print(getRequest);
  
if( esp.find("SEND OK")) { 
  
Serial.println("Packet sent");

while (esp.available()) {

String response = esp.readString();

}
esp.println("AT+CIPCLOSE");

}
}
}

void loop() {
  httpget();
}

But I can not see it in my serial monitor. Do I need to create a separate program for getting from wifi?

Thanks in advance.

Receive data using ESP8266

I have connected ESP8266 to my Raspberry Pi's WiFi network and assigned a static IP.

My Arduino code

#include "SoftwareSerial.h"

String ssid = "Rpi";
String password = "raspberry";

SoftwareSerial esp(3, 2);// RX, TX

String server = "192.168.50.1"; //my Host


void setup() {
  esp.begin(115200);
  Serial.begin(115200);
  connectWifi();
  httpget();
  delay(1000);
}

void connectWifi() {
  String cmd = "AT+CWJAP=\"" + ssid + "\",\"" + password + "\"";
  esp.println(cmd);
  delay(4000);
  if (esp.find("OK")) {
    Serial.println("Connected!");
  }
  else {
    Serial.println("Cannot connect to wifi ! Connecting again...");
  }
  connectWifi();
}

/////////////////////////////GET METHOD///////////////////////////////
void httpget() {
  esp.println("AT+CIPSTART=\"TCP\",\"" + server + "\",1234");//start a TCP connection.
  if ( esp.find("OK")) {
    Serial.println("TCP connection ready");
  }
  delay(1000);
  /*
    String getRequest =
    "GET " + uri + " HTTP/1.0\r\n" +
    "Host: " + server + "\r\n" +
    "Accept: *" + "/" + "*\r\n" +
    "Content-Type: application/json\r\n" +
    "\r\n";
  */
  String sendCmd = "AT+CIPSEND=";
  esp.print(sendCmd);
  //esp.println(getRequest.length() );
  delay(500);
  if (esp.find(">")) {
    Serial.println("Sending..");
    //  esp.print(getRequest);
    if ( esp.find("SEND OK")) {
      Serial.println("Packet sent");
      while (esp.available()) {
        String response = esp.readString();
      }
      esp.println("AT+CIPCLOSE");
    }
  }
}

void loop() {
  httpget();
}

But I can not see it in my Serial Monitor. Do I need to create a separate program for getting from WiFi?

added new code segment

Source Link

edited Dec 20, 2017 at 5:32

Sachith Muhandiram

121
2
12

When I execute AT+CIPSTA?

Output :My arduino code

+CIPSTA:ip:#include "SoftwareSerial.h"

String ssid ="Rpi";
String password="raspberry";

SoftwareSerial esp(3, 2);// RX, TX

String server = "192.168.50.18"1"; //my Host 
+CIPSTA:gateway:"192

void setup() {
  
  esp.168begin(115200);
  
  Serial.50begin(115200);

  connectWifi();
  
  httpget();
  
  delay(1000);

}
void connectWifi() {

String cmd = "AT+CWJAP=\"" +ssid+"\",\"" + password + "\"";

esp.1"println(cmd);
+CIPSTA
delay(4000);

if(esp.find("OK")) {

Serial.println("Connected!");

}
else {

Serial.println("Cannot connect to wifi ! Connecting again..."); }
connectWifi();

}
/////////////////////////////GET METHOD///////////////////////////////
void httpget() {
esp.println("AT+CIPSTART=\"TCP\",\"" + server + "\",1234");//start a TCP connection.

if( esp.find("OK")) {

Serial.println("TCP connection ready");

} delay(1000);
/*
String getRequest =
"GET " + uri + " HTTP/1.0\r\n" +
"Host:netmask " + server + "\r\n" +
"Accept:"255 *" + "/" + "*\r\n" +
"Content-Type: application/json\r\n" +
"\r\n";
*/
String sendCmd = "AT+CIPSEND=";

esp.255print(sendCmd);

//esp.255println(getRequest.0"length() );

delay(500);

if(esp.find(">")) { 
  Serial.println("Sending.."); 
//  esp.print(getRequest);
  
if( esp.find("SEND OK")) { 
  
Serial.println("Packet sent");

while (esp.available()) {

String response = esp.readString();

}
esp.println("AT+CIPCLOSE");

}
}
}

void loop() {
  httpget();
}

I get this message

Cannot connect to wifi ! Connecting again...

import socket

TCP_IP = '192.168.50.1' #Local Host
TCP_PORT = 30071234            #Listening Port
BUFFER_SIZE = 12

SERVER_IP = '192.168.50.18'  #Arduino IP
SERVER_PORT = 3007            #Server Port

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((TCP_IP,TCP_PORT))
#s.listen(1)

#(conn,addr) = s.accept()
#print 'Connection address: ',addr
while True:
    print 'Sending message'
    s.sendto('1',(SERVER_IP,SERVER_PORT))
    print 'Waiting for response'
    data,addr = s.recvfrom(BUFFER_SIZE)
    if not data: break
    print 'received data: ',data
    print 'data recieved from: ',addr
    conn.close()
s.close()

When I execute AT+CIPSTA?

Output :

+CIPSTA:ip:"192.168.50.18"
+CIPSTA:gateway:"192.168.50.1"
+CIPSTA:netmask:"255.255.255.0"

import socket

TCP_IP = '192.168.50.1' #Local Host
TCP_PORT = 3007            #Listening Port
BUFFER_SIZE = 12

SERVER_IP = '192.168.50.18'  #Arduino IP
SERVER_PORT = 3007            #Server Port

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((TCP_IP,TCP_PORT))
#s.listen(1)

#(conn,addr) = s.accept()
#print 'Connection address: ',addr
while True:
    print 'Sending message'
    s.sendto('1',(SERVER_IP,SERVER_PORT))
    print 'Waiting for response'
    data,addr = s.recvfrom(BUFFER_SIZE)
    if not data: break
    print 'received data: ',data
    print 'data recieved from: ',addr
    conn.close()
s.close()

My arduino code

#include "SoftwareSerial.h"

String ssid ="Rpi";
String password="raspberry";

SoftwareSerial esp(3, 2);// RX, TX

String server = "192.168.50.1"; //my Host 


void setup() {
  
  esp.begin(115200);
  
  Serial.begin(115200);

  connectWifi();
  
  httpget();
  
  delay(1000);

}
void connectWifi() {

String cmd = "AT+CWJAP=\"" +ssid+"\",\"" + password + "\"";

esp.println(cmd);

delay(4000);

if(esp.find("OK")) {

Serial.println("Connected!");

}
else {

Serial.println("Cannot connect to wifi ! Connecting again..."); }
connectWifi();

}
/////////////////////////////GET METHOD///////////////////////////////
void httpget() {
esp.println("AT+CIPSTART=\"TCP\",\"" + server + "\",1234");//start a TCP connection.

if( esp.find("OK")) {

Serial.println("TCP connection ready");

} delay(1000);
/*
String getRequest =
"GET " + uri + " HTTP/1.0\r\n" +
"Host: " + server + "\r\n" +
"Accept: *" + "/" + "*\r\n" +
"Content-Type: application/json\r\n" +
"\r\n";
*/
String sendCmd = "AT+CIPSEND=";

esp.print(sendCmd);

//esp.println(getRequest.length() );

delay(500);

if(esp.find(">")) { 
  Serial.println("Sending.."); 
//  esp.print(getRequest);
  
if( esp.find("SEND OK")) { 
  
Serial.println("Packet sent");

while (esp.available()) {

String response = esp.readString();

}
esp.println("AT+CIPCLOSE");

}
}
}

void loop() {
  httpget();
}

I get this message

Cannot connect to wifi ! Connecting again...

import socket

TCP_IP = '192.168.50.1' #Local Host
TCP_PORT = 1234            #Listening Port
BUFFER_SIZE = 12

SERVER_IP = '192.168.50.18'  #Arduino IP
SERVER_PORT = 3007            #Server Port

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((TCP_IP,TCP_PORT))
#s.listen(1)

#(conn,addr) = s.accept()
#print 'Connection address: ',addr
while True:
    print 'Sending message'
    s.sendto('1',(SERVER_IP,SERVER_PORT))
    print 'Waiting for response'
    data,addr = s.recvfrom(BUFFER_SIZE)
    if not data: break
    print 'received data: ',data
    print 'data recieved from: ',addr
    conn.close()
s.close()

Post Closed as "Needs more focus" by gre_gor, CommunityBot, jose can u c, per1234, sa_leinad

occurred Dec 20, 2017 at 4:34

Source Link

asked Dec 19, 2017 at 6:55

Sachith Muhandiram

121
2
12

Receive data using esp8266

I have connected esp8266 to my Raspberry pi's wifi network and assigned an static IP.

When I execute AT+CIPSTA?

Output :

+CIPSTA:ip:"192.168.50.18"
+CIPSTA:gateway:"192.168.50.1"
+CIPSTA:netmask:"255.255.255.0"

In my Raspberry Pi I am constantly sending a signal to this IP address.

import socket

TCP_IP = '192.168.50.1' #Local Host
TCP_PORT = 3007            #Listening Port
BUFFER_SIZE = 12

SERVER_IP = '192.168.50.18'  #Arduino IP
SERVER_PORT = 3007            #Server Port

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((TCP_IP,TCP_PORT))
#s.listen(1)

#(conn,addr) = s.accept()
#print 'Connection address: ',addr
while True:
    print 'Sending message'
    s.sendto('1',(SERVER_IP,SERVER_PORT))
    print 'Waiting for response'
    data,addr = s.recvfrom(BUFFER_SIZE)
    if not data: break
    print 'received data: ',data
    print 'data recieved from: ',addr
    conn.close()
s.close()

But I can not see it in my serial monitor. Do I need to create a separate program for getting from wifi?

Thanks in advance.

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