Installez le pilote pour votre système d'exploitation :

https://www.wemos.cc/downloads

Installez la plaquette ESP8266 dans l'environnement Arduino :

(De https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-arduino-ide)

Ajouter http://arduino.esp8266.com/stable/package_esp8266com_index.json sous 'preferences' → 'additional board managers'

Ajouter ensuite la définition matérielle sous :

Dans Arduino, sélectionnez 'D1 mini' dans la liste des cartes; 115200 Bauds pour la vitesse de transfert

Pour aller lire une page web.

/*
 *  Simple client HTTP 'get'
 */

#include <ESP8266WiFi.h>

const char* ssid     = "mon point d'accès";
const char* password = "son mot de passe";

const char* host = "artengine.ca";

void setup() {
  Serial.begin(115200);
  delay(100);

  // We start by connecting to a WiFi network

  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  
  WiFi.begin(ssid, password);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");  
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

int value = 0;

void loop() {
  delay(5000);
  ++value;

  Serial.print("connecting to ");
  Serial.println(host);
  
  // Use WiFiClient class to create TCP connections
  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }
  
  // We now create a URI for the request
  String url = "/acastonguay/AVM3301/wemos/index.html";
  Serial.print("Requesting URL: ");
  Serial.println(url);
  
  // This will send the request to the server
  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" + 
               "Connection: close\r\n\r\n");
  delay(500);
  
  // Read all the lines of the reply from server and print them to Serial
  while(client.available()){
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }
  
  Serial.println();
  Serial.println("closing connection");
}