53 lines
1.9 KiB
Python
53 lines
1.9 KiB
Python
# This example shows you a simple, non-interrupt way of reading Pico Display's buttons with a loop that checks to see if buttons are pressed.
|
|
|
|
import picodisplay as display
|
|
import utime
|
|
|
|
# Initialise display with a bytearray display buffer
|
|
buf = bytearray(display.get_width() * display.get_height() * 2)
|
|
display.init(buf)
|
|
display.set_backlight(0.5)
|
|
|
|
|
|
# sets up a handy function we can call to clear the screen
|
|
def clear():
|
|
display.set_pen(0, 0, 0)
|
|
display.clear()
|
|
display.update()
|
|
|
|
|
|
while True:
|
|
if display.is_pressed(display.BUTTON_A): # if a button press is detected then...
|
|
clear() # clear to black
|
|
display.set_pen(255, 255, 255) # change the pen colour
|
|
display.text("Button A pressed", 10, 10, 240, 4) # display some text on the screen
|
|
display.update() # update the display
|
|
utime.sleep(1) # pause for a sec
|
|
clear() # clear to black again
|
|
elif display.is_pressed(display.BUTTON_B):
|
|
clear()
|
|
display.set_pen(0, 255, 255)
|
|
display.text("Button B pressed", 10, 10, 240, 4)
|
|
display.update()
|
|
utime.sleep(1)
|
|
clear()
|
|
elif display.is_pressed(display.BUTTON_X):
|
|
clear()
|
|
display.set_pen(255, 0, 255)
|
|
display.text("Button X pressed", 10, 10, 240, 4)
|
|
display.update()
|
|
utime.sleep(1)
|
|
clear()
|
|
elif display.is_pressed(display.BUTTON_Y):
|
|
clear()
|
|
display.set_pen(255, 255, 0)
|
|
display.text("Button Y pressed", 10, 10, 240, 4)
|
|
display.update()
|
|
utime.sleep(1)
|
|
clear()
|
|
else:
|
|
display.set_pen(255, 0, 0)
|
|
display.text("Press any button!", 10, 10, 240, 4)
|
|
display.update()
|
|
utime.sleep(0.1) # this number is how frequently the Pico checks for button presses
|