initial commit

.vscode/settings.json

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+{
+    "python.languageServer": "Pylance",
+    "python.analysis.diagnosticSeverityOverrides": {
+        "reportMissingModuleSource": "none",
+        "reportShadowedImports": "none"
+    },
+    "circuitpython.board.version": "9.2.7",
+    "circuitpython.board.vid": "0x239A",
+    "circuitpython.board.pid": "0x80F4",
+    "python.analysis.extraPaths": [
+        "/home/mackan/.vscode/extensions/wmerkens.vscode-circuitpython-v2-0.3.3/boards/0x239A/0x80F4",
+        "/home/mackan/.vscode/extensions/wmerkens.vscode-circuitpython-v2-0.3.3/stubs",
+        "/home/mackan/.config/Code/User/globalStorage/wmerkens.vscode-circuitpython-v2/bundle/20250222/adafruit-circuitpython-bundle-py-20250222/lib"
+    ]
+}

boot.py

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+import usb_cdc
+
+usb_cdc.enable(console=True, data=True)

boot_out.txt

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+Adafruit CircuitPython 9.2.7 on 2025-04-01; Raspberry Pi Pico with rp2040
+Board ID:raspberry_pi_pico
+UID:504450612057BD1C
+boot.py output:

code.py

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+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)

sd/placeholder.txt

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+SD cards mounted at /sd will hide this file from Python. SD cards are not visible via USB CIRCUITPY.