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WiFi: improve WiFiClient(Basic) examples (#5197)

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WiFiClient no longer depends on now-defunct data.sparkfun.com
service, but uses a TCP "quote of the day" service instead.

fixes #4088
This commit is contained in:
Junxiao Shi
2018-10-11 01:08:13 -04:00
committed by Develo
parent a1e59e9c01
commit d17ffc2874
2 changed files with 36 additions and 45 deletions
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25
libraries/ESP8266WiFi/examples/WiFiClientBasic/WiFiClientBasic.ino
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@ -1,11 +1,18 @@
/*
This sketch sends a message to a TCP server
This sketch sends a string to a TCP server, and prints a one-line response.
You must run a TCP server in your local network.
For example, on Linux you can use this command: nc -v -l 3000
*/
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
const char* ssid = "your-ssid";
const char* password = "your-password";
const char* host = "192.168.1.1";
const uint16_t port = 3000;
ESP8266WiFiMulti WiFiMulti;
void setup() {
@ -14,7 +21,7 @@ void setup() {
// We start by connecting to a WiFi network
WiFi.mode(WIFI_STA);
WiFiMulti.addAP("SSID", "passpasspass");
WiFiMulti.addAP(ssid, password);
Serial.println();
Serial.println();
@ -35,13 +42,10 @@ void setup() {
void loop() {
const uint16_t port = 80;
const char * host = "192.168.1.1"; // ip or dns
Serial.print("connecting to ");
Serial.println(host);
Serial.print(host);
Serial.print(':');
Serial.println(port);
// Use WiFiClient class to create TCP connections
WiFiClient client;
@ -54,9 +58,10 @@ void loop() {
}
// This will send the request to the server
client.println("Send this data to server");
client.println("hello from ESP8266");
//read back one line from server
Serial.println("receiving from remote server");
String line = client.readStringUntil('\r');
Serial.println(line);