pimoroni-pico/micropython/examples/pico_display/buttons.py

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