Adafruit ESP32-S2 Reverse TFT Feather

by Kattni Rembor and

published February 14, 2023, last edited January 22, 2025
last major update July 28, 2023

posted in Adafruit Products Arduino Compatibles CircuitPython Feather/ Feather Boards LCDs & Displays/ Graphic TFTs

Save Download

Beginner

Product guide

Digital Input Multiple Buttons

Controlling the LED and TFT with Multiple Buttons

Note how button D0 uses Pull.UP while the remaining D1 and D2 buttons use Pull.DOWN logic.

Download Project Bundle

Copy Code

# SPDX-FileCopyrightText: 2022 Kattni Rembor for Adafruit Industries
# SPDX-License-Identifier: MIT
"""
CircuitPython Multiple Button Digital Input Example - Handling multiple buttons with simple logic.
"""
import time
import board
import digitalio

# LED setup
led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

# Button setup
button0 = digitalio.DigitalInOut(board.D0)
button0.switch_to_input(pull=digitalio.Pull.UP)

button1 = digitalio.DigitalInOut(board.D1)
button1.switch_to_input(pull=digitalio.Pull.DOWN)

button2 = digitalio.DigitalInOut(board.D2)
button2.switch_to_input(pull=digitalio.Pull.DOWN)

while True:
    # Check Button D0
    if not button0.value:  # button0 is active (Pull.UP, active LOW)
        print("Button D0 pressed")
        led.value = True
    # Check Button D1
    elif button1.value:  # button1 is active (Pull.DOWN, active HIGH)
        print("Button D1 pressed")
        led.value = True
    # Check Button D2
    elif button2.value:  # button2 is active (Pull.DOWN, active HIGH)
        print("Button D2 pressed")
        led.value = True
    else:
        led.value = False  # No buttons are pressed, turn off the LED

    # Small delay to debounce buttons and reduce serial output spam
    time.sleep(0.1)

# SPDX-FileCopyrightText: 2022 Kattni Rembor for Adafruit Industries
# SPDX-License-Identifier: MIT
"""
CircuitPython Multiple Button Digital Input Example - Handling multiple buttons with simple logic.
"""
import time
import board
import digitalio

# LED setup
led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

# Button setup
button0 = digitalio.DigitalInOut(board.D0)
button0.switch_to_input(pull=digitalio.Pull.UP)

button1 = digitalio.DigitalInOut(board.D1)
button1.switch_to_input(pull=digitalio.Pull.DOWN)

button2 = digitalio.DigitalInOut(board.D2)
button2.switch_to_input(pull=digitalio.Pull.DOWN)

while True:
    # Check Button D0
    if not button0.value:  # button0 is active (Pull.UP, active LOW)
        print("Button D0 pressed")
        led.value = True
    # Check Button D1
    elif button1.value:  # button1 is active (Pull.DOWN, active HIGH)
        print("Button D1 pressed")
        led.value = True
    # Check Button D2
    elif button2.value:  # button2 is active (Pull.DOWN, active HIGH)
        print("Button D2 pressed")
        led.value = True
    else:
        led.value = False  # No buttons are pressed, turn off the LED

    # Small delay to debounce buttons and reduce serial output spam
    time.sleep(0.1)

Page last edited January 14, 2025