from flask import Flask
from flask import render_template, request
import RPi.GPIO as gpio
import os, time
app = Flask(__name__)
RS =18
EN =23
D4 =24
D5 =16
D6 =20
D7 =21
HIGH=1
LOW=0
OUTPUT=1
INPUT=0
gpio.setwarnings(False)
gpio.setmode(gpio.BCM)
gpio.setup(RS, gpio.OUT)
gpio.setup(EN, gpio.OUT)
gpio.setup(D4, gpio.OUT)
gpio.setup(D5, gpio.OUT)
gpio.setup(D6, gpio.OUT)
gpio.setup(D7, gpio.OUT)
def begin():
  lcdcmd(0x33) 
  lcdcmd(0x32) 
  lcdcmd(0x06)
  lcdcmd(0x0C) 
  lcdcmd(0x28) 
  lcdcmd(0x01) 
  time.sleep(0.0005)
 
def lcdcmd(ch): 
  GPIO.output(RS, 0)
  GPIO.output(D4, 0)
  GPIO.output(D5, 0)
  GPIO.output(D6, 0)
  GPIO.output(D7, 0)
  if ch&0x10==0x10:
    GPIO.output(D4, 1)
  if ch&0x20==0x20:
    GPIO.output(D5, 1)
  if ch&0x40==0x40:
    GPIO.output(D6, 1)
  if ch&0x80==0x80:
    GPIO.output(D7, 1)
  GPIO.output(EN, 1)
  time.sleep(0.0005)
  GPIO.output(EN, 0)
  # Low bits
  GPIO.output(D4, 0)
  GPIO.output(D5, 0)
  GPIO.output(D6, 0)
  GPIO.output(D7, 0)
  if ch&0x01==0x01:
    GPIO.output(LCD_D4, 1)
  if ch&0x02==0x02:
    GPIO.output(LCD_D5, 1)
  if ch&0x04==0x04:
    GPIO.output(LCD_D6, 1)
  if ch&0x08==0x08:
    GPIO.output(LCD_D7, 1)
  GPIO.output(EN, 1)
  time.sleep(0.0005)
  GPIO.output(EN, 0)
  
 def lcdwrite(ch): 
  GPIO.output(RS, 1)
  GPIO.output(D4, 0)
  GPIO.output(D5, 0)
  GPIO.output(D6, 0)
  GPIO.output(D7, 0)
  if ch&0x10==0x10:
    GPIO.output(D4, 1)
  if ch&0x20==0x20:
    GPIO.output(D5, 1)
  if ch&0x40==0x40:
    GPIO.output(D6, 1)
  if ch&0x80==0x80:
    GPIO.output(D7, 1)
  GPIO.output(EN, 1)
  time.sleep(0.0005)
  GPIO.output(EN, 0)
  # Low bits
  GPIO.output(D4, 0)
  GPIO.output(D5, 0)
  GPIO.output(D6, 0)
  GPIO.output(D7, 0)
  if ch&0x01==0x01:
    GPIO.output(LCD_D4, 1)
  if ch&0x02==0x02:
    GPIO.output(LCD_D5, 1)
  if ch&0x04==0x04:
    GPIO.output(LCD_D6, 1)
  if ch&0x08==0x08:
    GPIO.output(LCD_D7, 1)
  GPIO.output(EN, 1)
  time.sleep(0.0005)
  GPIO.output(EN, 0)
 
def lcdprint(Str):
  l=0;
  l=len(Str)
  for i in range(l):
    lcdwrite(ord(Str[i]))
begin()
lcdprint("Circuit Digest")
lcdcmd(0xc0)
lcdprint("Welcomes You")
time.sleep(5)
@app.route("/")
def index():
    return render_template('web.html')
@app.route("/change", methods=['POST'])
def change():
 if request.method == 'POST':
    # Getting the value from the webpage
   data1 = request.form['lcd']
   lcdcmd(0x01)
   lcdprint(data1)
 return render_template('web.html', value=data1)
if __name__ == "__main__":
    app.debug = True
    app.run('192.168.1.14', port=8080,debug=True)