code for big switch kb2040

code for big switch kb2040

Big_Switch_KB2040/code.py

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+# SPDX-FileCopyrightText: 2021 Collin Cunningham for Adafruit Industries
+# SPDX-License-Identifier: MIT
+
+import time
+import board
+import usb_hid
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS
+from adafruit_hid.keycode import Keycode
+from digitalio import DigitalInOut, Direction, Pull
+
+# The pins connected to each switch/button
+buttonpins = [board.D3, board.D4, board.D5]
+# The pins connected to each LED
+ledpins = [board.D2, board.D6, board.D7]
+
+# our array of button & LED objects
+buttons = []
+leds = []
+
+# The keycode sent for each switch/button
+buttonkeys = [Keycode.B, Keycode.C, Keycode.A]
+buttonspressed = [False, False, False]
+buttonspressedlast = [False, False, False]
+
+# the keyboard object!
+kbd = Keyboard(usb_hid.devices)
+# we're americans :)
+layout = KeyboardLayoutUS(kbd)
+
+# make all button pin objects, make them inputs w/pullups
+for pin in buttonpins:
+    button = DigitalInOut(pin)
+    button.direction = Direction.INPUT
+    button.pull = Pull.UP
+    buttons.append(button)
+
+# make all LED objects, make them outputs
+for pin in ledpins:
+    led = DigitalInOut(pin)
+    led.direction = Direction.OUTPUT
+    leds.append(led)
+
+# set up the status LED
+statusled = DigitalInOut(board.D13)
+statusled.direction = Direction.OUTPUT
+
+print("Waiting for button presses")
+
+
+def pressbutton(index):
+    switch_led = leds[index]  # find the switch LED
+    k = buttonkeys[index]  # get the corresp. keycode/str
+    switch_led.value = True  # turn on LED
+    kbd.press(k)  # send keycode
+
+
+def releasebutton(index):
+    switch_led = leds[index]  # find the switch LED
+    k = buttonkeys[index]  # get the corresp. keycode/str
+    switch_led.value = False  # turn on LED
+    kbd.release(k)  # send keycode
+
+while True:
+    # check each button
+    for button in buttons:
+        i = buttons.index(button)
+        if button.value is False:  # button is pressed?
+            buttonspressed[i] = True  # save pressed button
+            # was button not pressed last time?
+            if buttonspressedlast[i] is False:
+                print("Pressed #%d" % i)
+                pressbutton(i)
+        else:
+            buttonspressed[i] = False  # button was not pressed
+            if buttonspressedlast[i] is True:  # was button pressed last time?
+                print("Released #%d" % i)
+                releasebutton(i)
+    #lightneopixels()
+    # save pressed buttons as pressed last
+    buttonspressedlast = list(buttonspressed)
+    time.sleep(0.01)