initial commit

code.py

@@ -0,0 +1,31 @@
+import time
+import board
+import usb_cdc
+import pwmio
+import digitalio
+
+pwm_X = pwmio.PWMOut(board.GP17, frequency=1000, duty_cycle=0)
+pwm_Y = pwmio.PWMOut(board.GP18, frequency=1000, duty_cycle=0)
+pen = digitalio.DigitalInOut(board.GP16)
+pen.direction = digitalio.Direction.OUTPUT
+pen.value = False  # Set pen to up position
+
+def message_handler(msg):
+    parts = msg.split(',')
+    if len(parts) != 3:
+        print("Invalid message format")
+        return
+    print(f"X: {parts[0]}, Y: {parts[1]}, Pen: {parts[2]}")
+    pwm_X.duty_cycle = int(parts[0])
+    pwm_Y.duty_cycle = int(parts[1])
+    pen.value = True if int(parts[2]) == 1 else False
+
+print("Booted")
+while True:
+    if usb_cdc.data.in_waiting:
+        data = usb_cdc.data.read(usb_cdc.data.in_waiting)
+        message = data.decode('utf-8').strip()
+        message_handler(message)
+        time.sleep(0.5)
+        usb_cdc.data.write(b"OK\n")
+    time.sleep(0.1)