Code: Select all
from machine import Pin
from time import sleep
try:
import usocket as socket
except:
import socket
import network
import esp
esp.osdebug(None)
import gc
gc.collect()
ssid = 'ESP32-AP-WebServer'
password = '123456789'
ap = network.WLAN(network.AP_IF)
ap.active(True)
ap.config(essid=ssid, password=password)
while not ap.active():
pass
print('network config:', ap.ifconfig())
# output pins
segA = Pin(23, Pin.OUT)
segB = Pin(22, Pin.OUT)
segC = Pin(33, Pin.OUT)
segD = Pin(13, Pin.OUT)
segE = Pin(21, Pin.OUT)
segF = Pin(19, Pin.OUT)
segG = Pin(18, Pin.OUT)
# input pins
button1 = Pin(36, Pin.IN) # increment
button2 = Pin(34, Pin.IN) # decrement
button3 = Pin(35, Pin.IN) # reset
segments = [segA, segB, segC, segD, segE, segF, segG] # assigning pins to arrary to ease addressing in loops
seven = [0b0111111, 0b0000110, 0b1011011, 0b1001111, 0b1100110, 0b1101101, 0b1111101, 0b0000111, 0b1111111, 0b1101111] #Binary values of seven segment numbers
global current_number
current_number = 0 # Default 7-segment value
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # server socket
s.bind(('',80)) # specifies that the socket is reachable by any address the machine happens to have
s.listen(5) # max of 5 socket connections
# functions
def increment(self):
global current_number
sleep(.3)
if current_number == 9 :
current_number=0
else :
current_number = current_number+1
for i in range(7):
segments[i].value(seven[current_number]>>i & 1)
def decrement(self):
global current_number
sleep(.3)
if current_number == 0 :
current_number=9
else :
current_number = current_number-1
for i in range(7):
segments[i].value(seven[current_number]>>i & 1)
def reset(self):
global current_number
sleep(.1)
current_number = 0
for i in range(7):
segments[i].value(seven[current_number]>>i & 1)
def seven_seg(current_number, button):
if button == 1:
sleep(.3)
if current_number == 9 :
current_number=0
else :
current_number = current_number+1
elif button == 2 :
sleep(.3)
if current_number == 0 :
current_number=9
else :
current_number = current_number-1
elif button == 0:
sleep(.1)
current_number = 0
else:
current_number = current_number
return current_number
def web_page(current_number):
print('7-segment is at ' + str(current_number))
html = """<!DOCTYPE HTML>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<center><h2>ESP32 Web Server in MicroPython </h2></center>
<center>
<form>
<button type='submit' name="SEVEN" value='1'> INCREASE</button>
<button type='submit' name="SEVEN" value='2'> DECREASE</button>
<button type='submit' name="SEVEN" value='0'> RESET</button>
</form>
</center>
<center><p>seven segment is at <strong>""" + str(current_number) + """</strong>.</p></center>
<center><p>PRESS ANY BUTTON <strong></strong>.</p></center>
</body>
</html>"""
return html
#Defining external interrupt pins
button1.irq(trigger=Pin.IRQ_FALLING , handler = increment)
button2.irq(trigger=Pin.IRQ_RISING , handler = decrement)
button3.irq(trigger=Pin.IRQ_RISING , handler = reset)
while True:
for i in range(7):
segments[i].value(seven[current_number]>>i & 1)
conn, addr = s.accept()
print("Got connection from %s" % str(addr))
# Socket accept()
# Socket receive()
request=conn.recv(1024)
print("")
print("")
print("Content %s" % str(request))
# Socket send()
request = str(request)
check = request.find('/?SEVEN')
if check == 6:
print(str(check))
current_number = seven_seg(current_number,int(request[14]))
response = web_page(current_number)
conn.send('HTTP/1.1 200 OK\n')
conn.send('Content-Type: text/html\n')
conn.send('Connection: close\n\n')
conn.sendall(response)
# Socket close()
conn.close()
