186 lines
5.2 KiB
Python
186 lines
5.2 KiB
Python
import network
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import socket
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from machine import Pin
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import time
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import errno # untuk kode error
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SSID = "SANGATLUCU"
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PASSWORD = "SANGATLUXU"
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# LED onboard ESP8266 (D4 / GPIO2) = active LOW
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led = Pin(2, Pin.OUT)
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led.value(1) # awal MATI (active LOW)
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# LED eksternal (umumnya active HIGH)
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led3 = Pin(15, Pin.OUT) # GPIO15 (D8)
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led4 = Pin(13, Pin.OUT) # GPIO13 (D7)
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led3.value(0) # awal MATI
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led4.value(0) # awal MATI
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def connect_wifi():
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wlan = network.WLAN(network.STA_IF)
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wlan.active(True)
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if not wlan.isconnected():
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print("Connecting to WiFi...")
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wlan.connect(SSID, PASSWORD)
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while not wlan.isconnected():
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time.sleep(0.5)
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print(".", end="")
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print("\nWiFi connected!")
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ip = wlan.ifconfig()[0]
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print("IP address:", ip)
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return ip
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def web_page():
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# status LED onboard (active LOW)
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state = "ON" if led.value() == 0 else "OFF"
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# status LED eksternal (active HIGH)
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state1 = "ON" if led3.value() == 1 else "OFF"
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state2 = "ON" if led4.value() == 1 else "OFF"
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html = f"""<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>ESP8266 LED WEB</title>
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<style>
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body {{ font-family: Arial; text-align:center; margin-top:50px; }}
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button {{
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font-size:20px; padding:15px 30px; margin:10px;
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border:none; border-radius:10px; cursor:pointer;
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}}
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.on {{ background:#2ecc71; color:white; }}
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.off {{ background:#e74c3c; color:white; }}
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</style>
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</head>
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<body>
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<h2>Kontrol LED ESP8266 via Web</h2>
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<p>Status LED_biru: <b>{state}</b></p>
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<p>Status LED_hijau: <b>{state1}</b></p>
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<p>Status LED_kuning: <b>{state2}</b></p>
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<p>
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<a href="/on"><button class="on">LED BIRU ON</button></a>
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<a href="/off"><button class="off">LED BIRU OFF</button></a>
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<br>
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<a href="/pin1_on"><button class="on">LED HIJAU ON</button></a>
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<a href="/pin1_off"><button class="off">LED HIJAU OFF</button></a>
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<br>
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<a href="/pin2_on"><button class="on">LED KUNING ON</button></a>
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<a href="/pin2_off"><button class="off">LED KUNING OFF</button></a>
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</p>
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</body>
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</html>"""
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return html
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# ----- Fungsi anti-EADDRINUSE -----
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def start_server(preferred_port=80):
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global s
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# coba tutup server lama kalau masih ada
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try:
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s.close()
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except:
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pass
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# coba bind port yang diinginkan
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for port in (preferred_port, 8080):
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try:
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addr = socket.getaddrinfo("0.0.0.0", port)[0][-1]
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s = socket.socket()
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# reuse address biar port nggak nyangkut
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s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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s.bind(addr)
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s.listen(1)
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print("Server listening on port:", port)
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return port
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except OSError as e:
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# kalau EADDRINUSE, coba port berikutnya
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if e.args and e.args[0] == errno.EADDRINUSE:
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print("Port", port, "in use, trying another port...")
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try:
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s.close()
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except:
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pass
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continue
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else:
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# error lain, lempar lagi biar kelihatan
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raise e
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# kalau dua-duanya gagal
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raise OSError("Cannot bind to port 80 or 8080")
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ip = connect_wifi()
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PORT = start_server(80)
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print("Web server ready. Open browser to:")
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print("http://{}:{}/".format(ip, PORT) if PORT != 80 else "http://{}/".format(ip))
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while True:
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conn = None
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try:
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conn, addr = s.accept()
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try:
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request = conn.recv(1024)
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if not request:
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conn.close()
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continue
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request = request.decode()
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except OSError as e:
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# ECONNRESET biasanya terjadi di recv
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if e.args and e.args[0] == errno.ECONNRESET:
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# client reset koneksi, abaikan saja
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continue
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else:
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raise e
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first_line = request.split("\r\n")[0]
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path = first_line.split(" ")[1]
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# LED biru (onboard, active LOW)
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if path == "/on":
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led.value(0) # nyala
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elif path == "/off":
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led.value(1) # mati
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# LED hijau (GPIO15, active HIGH)
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elif path == "/pin1_on":
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led3.value(1)
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elif path == "/pin1_off":
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led3.value(0)
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# LED kuning (GPIO13, active HIGH)
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elif path == "/pin2_on":
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led4.value(1)
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elif path == "/pin2_off":
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led4.value(0)
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response = web_page()
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try:
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conn.send("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n")
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conn.sendall(response)
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except OSError as e:
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# ECONNRESET bisa juga terjadi saat send
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if e.args and e.args[0] == errno.ECONNRESET:
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continue
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else:
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raise e
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except Exception as e:
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print("Error:", e)
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finally:
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if conn:
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try:
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conn.close()
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except:
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pass
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