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hai...yuk belajar membuat lampu berjalan maju dan mundur,dengan peralatan seadanya,beberapa led,resistor comotan,...
langkah selanjutnya konekkan nodemcu mu ke arduino pilih board nya
langkah selanjutnya coding
ini hasilnya
#include <ESP8266WiFi.h>
const char* ssid = "isi nama routermu";
const char* password = "password routermu";
int ledPins1[]={D0,D1,D2,D3,D4,D5,D6,D7};
int ledPins2[]={D7,D6,D5,D4,D3,D2,D1,D0};
WiFiServer server(80);
void setup()
{
Serial.begin(115200);
delay(10);
for (int i =0; i <8; i++)
{
pinMode(ledPins1[i],OUTPUT);
pinMode(ledPins2[i],OUTPUT);
}
// Connect to 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");
// Start the server
server.begin();
Serial.println("Server started");
// Print the IP address
Serial.print("Use this URL to connect: ");
Serial.print("http://");
Serial.print(WiFi.localIP());
Serial.println("/");
}
void loop()
{
// Check if a client has connected
WiFiClient client = server.available();
if (!client)
{
return;
}
// Wait until the client sends some data
Serial.println("new client");
while(!client.available())
{
delay(1);
}
// Read the first line of the request
String request = client.readStringUntil('\r');
Serial.println(request);
client.flush();
// Match the request maju
{ int value = LOW;
if (request.indexOf("/LED=maju")!= -1 )
for(int i =0; i<8; i++)
{
digitalWrite(ledPins1[i],HIGH);
delay(1000);
digitalWrite(ledPins1[i],LOW);
}
for(int i =7; i<1; i--)
{
digitalWrite(ledPins1[i],HIGH);
delay(1000);
digitalWrite(ledPins1[i],LOW);
}
}
// Match the request mundur
{
int value = HIGH;
if (request.indexOf("/LED=mundur")!= -1 )
for(int i =0; i<8; i++)
{
digitalWrite(ledPins2[i],HIGH);
delay(1000);
digitalWrite(ledPins2[i],LOW);
}
for(int i =7; i<1; i--)
{
digitalWrite(ledPins2[i],HIGH);
delay(1000);
digitalWrite(ledPins2[i],LOW);
}
}
// Set ledPin according to the request
//digitalWrite(ledPin, value);
// Return the response
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("");
// do not forget this one
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.print("Led pin is now: ");
client.println("<br><br>");
client.println("<a href=\"/LED=maju\"\"><button>maju </button></a>");
client.println("<a href=\"/LED=mundur\"\"><button>mundur </button></a><br />"); client.println("</html>");
delay(1);
Serial.println("Client disonnected");
Serial.println("");
}
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