HTTP get request using Arduino Uno and ESP8266

Question

I have an Arduino Uno and an ESP8266 and I want to send a HTTP get request to google.com and print the response. Please help me thanks.

• Juraj: if you have AT firmware in esp8266, use AT commands or WiFiEsp library. the library has examples. for AT commands you can google may examples.

Answer 1

You can use ESP8266Wifi Arduino Library.

Here an example:

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
const char* ssid = "yourNetworkName";
const char* password = "yourNetworkPassword";
void setup () {
 Serial.begin(115200);
 WiFi.begin(ssid, password);
 while (WiFi.status() != WL_CONNECTED) {
 delay(1000);
 Serial.print("Connecting..");
 }
}
void loop() {
 if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status
 HTTPClient http; //Declare an object of class HTTPClient
 http.begin("http://www.google.com"); //Specify request destination
 int httpCode = http.GET(); //Send the request 
 if (httpCode > 0) { //Check the returning code
 String payload = http.getString(); //Get the request response payload
 Serial.println(payload); //Print the response payload
 }
 http.end(); //Close connection
 }
 delay(30000); //Send a request every 30 seconds
}

• alireza: but this is for coding directly on esp8266 I want to upload the code to arduino uno
• leoc7: Ok, do you want to use AT commands? See this post: arduino.stackexchange.com/questions/32567/…