Import led-driver app: pico/ and esp32/ layout

Co-authored-by: Cursor <cursoragent@cursor.com>

esp32/test/test_uart_tx.py

@@ -0,0 +1,32 @@
+"""
+ESP32-C6 UART TX + LED test. Sends a few commands on GPIO17, blinks LED on GPIO15.
+Run on device: exec(open('test/test_uart_tx').read()) or import test.test_uart_tx
+Does not require Pico connected.
+"""
+import machine
+import time
+
+UART_TX_PIN = 17
+LED_PIN = 15
+
+def main():
+    uart = machine.UART(1, baudrate=115200, tx=UART_TX_PIN)
+    led = machine.Pin(LED_PIN, machine.Pin.OUT)
+
+    def send(cmd):
+        uart.write(cmd + "\n")
+        print("TX:", cmd)
+
+    # Blink and send a short command sequence
+    commands = ["off", "fill 255 0 0", "fill 0 255 0", "fill 0 0 255", "off"]
+    for i, cmd in enumerate(commands):
+        led.value(1)
+        send(cmd)
+        time.sleep(0.3)
+        led.value(0)
+        time.sleep(0.2)
+
+    print("Done. Connect Pico to see strip follow commands.")
+
+if __name__ == "__main__":
+    main()