initial commit

Makefile

@@ -0,0 +1,6 @@
+all: upload
+
+upload:
+	cp -r ./*.py /media/brennen/CIRCUITPY/
+	cp -r ./lib /media/brennen/CIRCUITPY/
+	sync

main.py

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+import time
+import board
+import digitalio
+import gc
+import busio
+
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keycode import Keycode
+from adafruit_hid.mouse import Mouse
+from adafruit_neotrellis.neotrellis import NeoTrellis
+
+#create the i2c object for the trellis
+i2c_bus = busio.I2C(board.SCL, board.SDA)
+
+#create the trellis
+trellis = NeoTrellis(i2c_bus)
+
+SWITCH_PINS = (board.D5, board.D6, board.D9, board.D10, board.D11, board.D12, board.A1)
+BOUNCE_SECS = 0.100
+
+gc.collect()
+print(gc.mem_free())
+
+switch_ins = tuple(digitalio.DigitalInOut(pin) for pin in SWITCH_PINS)
+for switch_in in switch_ins:
+    switch_in.switch_to_input(pull=digitalio.Pull.UP)
+
+kbd = Keyboard()
+
+OFF = (1, 0, 0)
+LIT = (40, 20, 0)
+
+states = {}
+
+def toggle(event):
+    #turn the LED on when a rising edge is detected
+    if event.edge == NeoTrellis.EDGE_RISING:
+        states[event.number] = not states[event.number]
+
+        for state, value in states.items():
+            if value:
+                trellis.pixels[state] = LIT
+            else:
+                trellis.pixels[state] = OFF
+
+for i in range(16):
+    states[i] = False
+    #activate rising edge events on all keys
+    trellis.activate_key(i, NeoTrellis.EDGE_RISING)
+    #activate falling edge events on all keys
+    trellis.activate_key(i, NeoTrellis.EDGE_FALLING)
+    #set all keys to trigger the blink callback
+    trellis.callbacks[i] = toggle
+
+"""Start shortcut processing. Run forever."""
+while True:
+    for switch, switch_in in enumerate(switch_ins):
+        trellis.sync()
+        if not switch_in.value:
+            # If switch is pressed, it's pulled low. Debounce by waiting for bounce time.
+            time.sleep(BOUNCE_SECS)
+            print('switch: ', switch)
+            print(gc.mem_free())
+            kbd.send(Keycode.LEFT_GUI, Keycode.TAB)
+
+            # Wait for switch to be released.
+            while not switch_in.value:
+                pass