SunFounder Da Vinci Kit Bedienungsanleitung Seite 377

time.sleep(5)
init_new_value()
lcd_show_input(0)
return
LCD1602.write(0,0,'Enter
LCD1602.write(13,0,str(count))
LCD1602.write(0,1,str(lower))
LCD1602.write(3,1,' < Point <
LCD1602.write(13,1,str(upper))
def loop():
global keypad, last_key_pressed,count
while(True):
result = 0
pressed_keys
if len(pressed_keys)
if pressed_keys
init_new_value()
lcd_show_input(0)
elif pressed_keys
result
lcd_show_input(result)
elif pressed_keys[0]
if pressed_keys[0]
continue
count
count
if count
result
lcd_show_input(result)
print(pressed_keys)
last_key_pressed
time.sleep(0.1)
# Define a destroy function for clean up everything after the script finished
def destroy():
# Release resource
GPIO.cleanup()
LCD1602.clear()
if __name__ == '__main__':
try:
setup()
while True:
loop()
except KeyboardInterrupt:
be executed.
destroy()
Code Erklärung
Am Anfang des Codes stehen die Funktionsfunktionen der Tastatur und des I2C LCD1602. Weitere Informationen
hierzu finden Sie in den Tasten 1.1.7 I2C LCD1602 und 2.1.5 Tastatur.
Hier müssen wir Folgendes wissen:
def init_new_value():
1.9. 3 Erweiterung
number:')
')
= keypad.read()
!= 0 and last_key_pressed
== ["A"]:
== ["D"]:
= detect_point()
in keys:
in list(["A","B","C","D","#"," *
= count 10
*
+= int(pressed_keys[0])
>= 10:
= detect_point()
= pressed_keys
# Program start from here
# When 'Ctrl+C' is pressed, the program destroy() will
SunFounder Da Vinci Kit
(Fortsetzung der vorherigen Seite)
!= pressed_keys:
"]):
(Fortsetzung auf der nächsten Seite)
373