ESP8266 NodeMCU v3 (LoLin) - работа в режиме точки доступа, т.е. без использования роутера. В качестве примера, включаем или отключаем светодиод на плате с веббраузера смартфона
Ip адрес создаваемой точки доступа: http://192.168.4.1
/*
* NodeMCU/ESP8266 act as AP (Access Point) and simplest Web Server
* to control GPIO (on-board LED)
* Connect to AP "lampa", password = "password"
* Open browser, visit 192.168.4.1
*/
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
const char *ssid = "lampa";
const char *password = "password";
int stateLED = LOW;
ESP8266WebServer server(80);
void handleRoot() {
response();
}
void handleLedOn() {
stateLED = LOW;
digitalWrite(2, stateLED);
response();
}
void handleLedOff() {
stateLED = HIGH;
digitalWrite(2, stateLED);
response();
}
const String HtmlHtml = "<html><head>"
"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" /></head>";
const String HtmlHtmlClose = "</html>";
const String HtmlTitle = "<h1>Arduino-er: ESP8266 AP WebServer exercise</h1><br/>\n";
const String HtmlLedStateLow = "<big>LED is now <b>ON</b></big><br/>\n";
const String HtmlLedStateHigh = "<big>LED is now <b>OFF</b></big><br/>\n";
const String HtmlButtons =
"<a href=\"LEDOn\"><button style=\"display: block; width: 100%;\">ON</button></a><br/>"
"<a href=\"LEDOff\"><button style=\"display: block; width: 100%;\">OFF</button></a><br/>";
void response(){
String htmlRes = HtmlHtml + HtmlTitle;
if(stateLED == LOW){
htmlRes += HtmlLedStateLow;
}else{
htmlRes += HtmlLedStateHigh;
}
htmlRes += HtmlButtons;
htmlRes += HtmlHtmlClose;
server.send(200, "text/html", htmlRes);
}
void setup() {
delay(1000);
Serial.begin(9600);
// prepare GPIO2
pinMode(14, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
pinMode(15, OUTPUT);
digitalWrite(14, 0);
digitalWrite(12, 0);
digitalWrite(13, 0);
digitalWrite(15, 0);
Serial.println();
WiFi.softAP(ssid, password);
IPAddress apip = WiFi.softAPIP();
Serial.print("visit: \n");
Serial.println(apip);
server.on("/", handleRoot);
server.on("/LEDOn", handleLedOn);
server.on("/LEDOff", handleLedOff);
server.begin();
Serial.println("HTTP server beginned");
pinMode(2, OUTPUT);
digitalWrite(2, stateLED);
}
void loop() {
server.handleClient();
}
Источник:
http://arduino-er.blogspot.com/2016/05/nodemcuesp8266-act-as-ap-access-point_3.html
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