yarons/esp32_micropython_webserver_led.py

## esp32_micropython_webserver_led.py
# First replace SSID and PASS with yor Wi-Fi's SSID and password.
# The IP for the Webserver will appear in the console.
# In order to make the LED blink type the following
# in your Web Browser or curl:
# http://<esp32_ip>/blink=<amount>
# For example:
# http://192.168.1.50/blink=4
import socket
from machine import Pin
from time import sleep_ms
import re

led = Pin(2, Pin.OUT)

HOST = "0.0.0.0"  # Standard loopback interface address (localhost)
PORT = 80  # Port to listen on (non-privileged ports are > 1023)
SSID = 'YOUR_WIFI_SSID'
PASS = 'YOUR_WIFI_PASS'

def do_connect():
    import network
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print('connecting to network...')
        wlan.connect(SSID, PASS)
        while not wlan.isconnected():
            pass
    print('network config:', wlan.ifconfig())


def blink_led(num):
    for i in range(num*2):
        led.value(not led.value())
        sleep_ms(500)
    led.value(0)

def http_server():
    html = """<!DOCTYPE html>
    <html>
        <head> <title>ESP32 Server</title> </head>
        <body>
        <h1>Welcome to ESP32 Server, the LED will blink if the correct parameter specified</h1>
        </body>
    </html>
    """

    addr = socket.getaddrinfo(HOST, PORT)[0][-1]

    s = socket.socket()
    s.bind(addr)
    s.listen(1)

    print('listening on', addr)

    while True:
        cl, addr = s.accept()
        print('client connected from', addr)
        cl_file = cl.makefile('rwb', 0)
        while True:
            line = cl_file.readline()
            r1 = re.match('GET',line)
            if r1:
                param = line.decode().split()[1].replace('?','=').split('=')[1]
                if param == 'blink':
                    blink_num = int(line.decode().split()[1].replace('?','=').split('=')[2])
            if not line or line == b'\r\n':
                break
        cl.send('HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n')
        cl.send(html)
        try:
            blink_num
            blink_led(blink_num)
        except NameError:
            blink_num = None
        cl.close()


do_connect()
http_server()
	# First replace SSID and PASS with yor Wi-Fi's SSID and password.
	# The IP for the Webserver will appear in the console.
	# In order to make the LED blink type the following
	# in your Web Browser or curl:
	# http://<esp32_ip>/blink=<amount>
	# For example:
	# http://192.168.1.50/blink=4
	import socket
	from machine import Pin
	from time import sleep_ms
	import re

	led = Pin(2, Pin.OUT)

	HOST = "0.0.0.0" # Standard loopback interface address (localhost)
	PORT = 80 # Port to listen on (non-privileged ports are > 1023)
	SSID = 'YOUR_WIFI_SSID'
	PASS = 'YOUR_WIFI_PASS'

	def do_connect():
	import network
	wlan = network.WLAN(network.STA_IF)
	wlan.active(True)
	if not wlan.isconnected():
	print('connecting to network...')
	wlan.connect(SSID, PASS)
	while not wlan.isconnected():
	pass
	print('network config:', wlan.ifconfig())


	def blink_led(num):
	for i in range(num*2):
	led.value(not led.value())
	sleep_ms(500)
	led.value(0)

	def http_server():
	html = """<!DOCTYPE html>
	<html>
	<head> <title>ESP32 Server</title> </head>
	<body>
	<h1>Welcome to ESP32 Server, the LED will blink if the correct parameter specified</h1>
	</body>
	</html>
	"""

	addr = socket.getaddrinfo(HOST, PORT)[0][-1]

	s = socket.socket()
	s.bind(addr)
	s.listen(1)

	print('listening on', addr)

	while True:
	cl, addr = s.accept()
	print('client connected from', addr)
	cl_file = cl.makefile('rwb', 0)
	while True:
	line = cl_file.readline()
	r1 = re.match('GET',line)
	if r1:
	param = line.decode().split()[1].replace('?','=').split('=')[1]
	if param == 'blink':
	blink_num = int(line.decode().split()[1].replace('?','=').split('=')[2])
	if not line or line == b'\r\n':
	break
	cl.send('HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n')
	cl.send(html)
	try:
	blink_num
	blink_led(blink_num)
	except NameError:
	blink_num = None
	cl.close()


	do_connect()
	http_server()