add basic pico nodes

IO/INSTRUMENTS/OSCILLOSCOPES/PICO/PICO2000/CONNECTION_2000/CONNECTION_2000.py

@@ -0,0 +1,33 @@
+from flojoy import flojoy, DataContainer, TextBlob
+from typing import Optional
+import ctypes
+from picosdk.ps2000 import ps2000 as ps
+from picosdk.functions import assert_pico2000_ok
+
+
+@flojoy(deps={"picosdk": "1.1"})
+def CONNECTION_2000(
+    default: Optional[DataContainer] = None,
+) -> TextBlob:
+    """The CONNECTION_2000 node connects Flojoy to an available Picoscope.
+
+    If more than one P2000 oscilloscope is available, the first one connected
+    to the PC will likely be chosen. If you need specific device selection,
+    please contact us at: https://www.flojoy.ai/contact-sales.
+
+    Note the P2000 nodes require a device specific driver/SDK downloaded from:
+    https://www.picotech.com/downloads.
+
+    Returns
+    -------
+    TextBlob
+        Placeholder return currently
+    """
+
+    ps.ps2000_close_unit(ctypes.c_int16(1))
+
+    status = {}
+    status["openUnit"] = ps.ps2000_open_unit()
+    assert_pico2000_ok(status["openUnit"])
+
+    return TextBlob(text_blob=str(status["openUnit"]))