Added led_ring example

Author: ArisMorgens

examples/led_ring.py

@@ -0,0 +1,72 @@
+# ,---------,       ____  _ __
+# |  ,-^-,  |      / __ )(_) /_______________ _____  ___
+# | (  O  ) |     / __  / / __/ ___/ ___/ __ `/_  / / _ \
+# | / ,--'  |    / /_/ / / /_/ /__/ /  / /_/ / / /_/  __/
+#    +------`   /_____/_/\__/\___/_/   \__,_/ /___/\___/
+#
+# Copyright (C) 2026 Bitcraze AB
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+"""
+Simple example that connects to the crazyflie at `URI` and writes to
+the LED memory so that individual leds in the LED-ring can be set,
+it has been tested with (and designed for) the LED-ring deck.
+
+Change the URI variable to your Crazyflie configuration.
+"""
+
+import asyncio
+from dataclasses import dataclass
+
+import tyro
+
+from cflib2 import Crazyflie, LedRingColor, LinkContext
+
+
+@dataclass
+class Args:
+    uri: str = "radio://0/80/2M/E7E7E7E7E7"
+    """Crazyflie URI"""
+
+
+async def main() -> None:
+    args = tyro.cli(Args)
+
+    print(f"Connecting to {args.uri}...")
+    ctx = LinkContext()
+    cf = await Crazyflie.connect_from_uri(ctx, args.uri)
+    print("Connected!")
+
+    try:
+        # Set virtual mem effect
+        await cf.param().set("ring.effect", 13)
+
+        # Build LED list and set individual LEDs
+        leds = [LedRingColor() for _ in range(12)]
+        leds[0].set(r=0, g=100, b=0)
+        leds[3].set(r=0, g=0, b=100)
+        leds[6].set(r=100, g=0, b=0)
+        leds[9].set(r=100, g=100, b=100)
+        await cf.memory().write_led_ring(leds)
+
+        await asyncio.sleep(2)
+
+    finally:
+        print("Disconnecting...")
+        await cf.disconnect()
+        print("Done!")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())