ESP8266 + 433Mhz

main.c

//#include <Hash.h>

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>

#include <RCSwitch.h>
 
const char* ssid = "Chris's ESP8266";
const char* password = "12345678";
MDNSResponder mdns;

ESP8266WebServer server(80);

const int led = 13;

RCSwitch mySwitch = RCSwitch();

void handleRoot() {
  digitalWrite(led, 1);
  server.send(200, "text/plain", "hello from esp8266!");
  digitalWrite(led, 0);
}

void handleNotFound(){
  digitalWrite(led, 1);
  String message = "File Not Found\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET)?"GET":"POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";
  for (uint8_t i=0; i<server.args(); i++){
    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
  }
  server.send(404, "text/plain", message);
  digitalWrite(led, 0);
}
 
void setup(void){
  pinMode(led, OUTPUT);
  digitalWrite(led, 0);
  Serial.begin(115200);
//  WiFi.begin(ssid, password);
  WiFi.softAP(ssid, password);

  mySwitch.enableTransmit(4);
  
  Serial.println("SETUP");

//  // Wait for connection
//  while (WiFi.status() != WL_CONNECTED) {
//    delay(500);
//    Serial.print(".");
//  }
//  Serial.println("");
//  Serial.print("Connected to ");
//  Serial.println(ssid);
//  Serial.print("IP address: ");
//  Serial.println(WiFi.localIP());
  
  if (mdns.begin("esp8266", WiFi.localIP())) {
    Serial.println("MDNS responder started");
  }
  
  server.on("/", handleRoot);

  //000000000011000000111001
  //000000000011000000111000
  
  server.on("/send", [](){
    String code = server.arg("code");
    mySwitch.send(code.c_str());

    Serial.println("code: " + code);
      
    char buffer[100];
    sprintf(buffer, "sent %s", code.c_str());
    server.send(200, "text/plain", buffer);
  });

  server.onNotFound(handleNotFound);
  
  server.begin();
  Serial.println("HTTP server started");
}
 
void loop(void){
  server.handleClient();
}