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Post Reopened by Michel Keijzers, per1234, jose can u c, gre_gor, sa_leinad
Format code, fix typos
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per1234
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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

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, Community Bot, jose can u c, per1234, sa_leinad
Source Link

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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