58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
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#!/usr/bin/env python3
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# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import digitalio
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import board
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from adafruit_rgb_display.rgb import color565
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from adafruit_rgb_display import st7789
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# Configuration for CS and DC pins for Raspberry Pi
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cs_pin = digitalio.DigitalInOut(board.CE0)
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dc_pin = digitalio.DigitalInOut(board.D25)
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reset_pin = None
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BAUDRATE = 64000000 # The pi can be very fast!
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# Create the ST7789 display:
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display = st7789.ST7789(
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board.SPI(),
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cs=cs_pin,
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dc=dc_pin,
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rst=reset_pin,
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baudrate=BAUDRATE,
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width=135,
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height=240,
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x_offset=53,
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y_offset=40,
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)
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backlight = digitalio.DigitalInOut(board.D22)
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backlight.switch_to_output()
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backlight.value = True
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buttonA = digitalio.DigitalInOut(board.D23)
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buttonB = digitalio.DigitalInOut(board.D24)
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buttonA.switch_to_input()
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buttonB.switch_to_input()
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buttonAToggle = False
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buttonBToggle = False
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# Main loop:
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while True:
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if buttonA.value and buttonB.value:
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backlight.value = False # turn off backlight
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else:
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backlight.value = True # turn on backlight
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if buttonB.value and not buttonA.value: # just button A pressed
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display.fill(color565(255, 0, 0)) # red
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if buttonA.value and not buttonB.value: # just button B pressed
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display.fill(color565(0, 0, 255)) # blue
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if not buttonA.value and not buttonB.value: # none pressed
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display.fill(color565(0, 255, 0)) # green
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if buttonA.value != buttonAToggle:
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print("buttonA toggle state")
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buttonAToggle = buttonA.value
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if buttonB.value != buttonBToggle:
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print("buttonB toggle state")
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buttonBToggle = buttonB.value
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