multiple button rev tft example

The ESP32-S2 and -S3 Rev TFT have three buttons. This example demonstrates the Pull.UP vs Pull.DOWN configuration across all three as it is non-intuitive. text to serial will also show up on the TFT. Test on both ESP32-S2 and ESP32-S3 Rev TFT boards with CP 9.2.2. Works!

Author: mikeysklar

CircuitPython_Templates/digital_input_built_in_led_multiple_buttons_rev_tft/code.py

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+# 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 board
+import digitalio
+import time
+
+# 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)