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menu.py
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menu.py
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#!/usr/bin/python3
# -*- encoding: utf-8 -*-
from datetime import datetime
import KY040, lcddriver, time
import RPi.GPIO as GPIO
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(17,GPIO.IN,pull_up_down=GPIO.PUD_UP)
lcd = lcddriver.lcd()
rot = KY040.KY040(21,20,24)
class menu():
def __init__(self):
self.stringdict = {1:"",2:"",3:"",4:""}
self.blinkline = 1
self.blinkon = 0
self.button = 0
self.lcd = lcddriver.lcd()
self.rot = KY040.KY040(21,20,24,self.rotarycallback,self.switchcallback)
self.rot.start()
def hello(self):
for x in self.stringdict:
self.stringdict[x] = "Hello"
self.lcd.lcd_clear()
z = 0
while True:
if self.blinkon == 1:
for x in self.stringdict:
if x == self.blinkline:
if z == 1:
self.lcd.lcd_display_string(self.stringdict[self.blinkline],self.blinkline)
z = 0
else:
self.lcd.lcd_display_string("",self.blinkline)
z = 1
else:
self.lcd.lcd_display_string(self.stringdict[x],x)
time.sleep(.5)
self.lcd.lcd_clear()
else:
for x in self.stringdict:
self.lcd.lcd_display_string(self.stringdict[x],x)
time.sleep(.5)
self.lcd.lcd_clear()
def rotarycallback(self,direction):
if self.blinkon == 1:
if direction == 0:
self.blinkline +=1
if self.blinkline > 4: self.blinkline = 1
else:
self.blinkline -=1
if self.blinkline < 1: self.blinkline = 4
print(self.blinkline)
def switchcallback(self):
print("Button pressed")
if self.blinkon == 0: self.blinkon = 1
else: self.blinkon = 0
def run(self):
try:
self.hello()
except KeyboardInterrupt:
self.rot.stop()
GPIO.cleanup()
if __name__=="__main__":
menu = menu()
menu.run()