Espressif ESP8266 User Manual

H. HTTP
By connecting to the internet you can exchange data between your ESP8266 and the network.
Let’s look at how we can load content from a web server using the Hyper Text Transfer
Protocol (HTTP). This protocol is the foundation of the World Wide Web.
1 #include <ESP8266WiFi.h>
2
3 char* ssid = "SSID";
4 const char* password = "PASSW0RD";
5
6 const char* host = "www.squix.org";
7
8 void setup() {
9 Serial.begin(115200);
10
11 Serial.print("Connecting to ");
12 Serial.println(ssid);
13
14 WiFi.begin(ssid, password);
15
16 // Wait until WiFi is connected
17 while (WiFi.status() != WL_CONNECTED)
{ 18 delay(500);
19 Serial.print(".");
20 }
21
22 Serial.println("");
23 Serial.println("WiFi connected");
24 Serial.println("IP address: ");
25 Serial.println(WiFi.localIP());
26 }
27
28 void loop()
{ 29 delay(5000);

Espressif ESP8266 Specifications

General

Digital I/O Pins	17
Analog Input Pins	1
Wi-Fi	802.11 b/g/n
Operating Voltage	3.0V - 3.6V
Clock Speed	80 MHz / 160 MHz
Operating Temperature	-40°C to 125°C
Dimensions	24mm x 14mm
Processor	Tensilica L106 32-bit micro controller