Added error message if library run on old uf2 files

Author: ksiegall

XRPLib/__init__.py

@@ -0,0 +1,10 @@
+"""
+    THIS LIBRARY WAS MADE FOR THE SPARKFUN XRP CONTROL BOARD.
+    PLEASE USE THE ASSOCIATED MICROPYTHON UF2 FILE.
+"""
+
+import sys
+if not "XRP" in sys.implementation._machine:
+    raise NotImplementedError("This library does not support your version of MicroPython. "
+                              + "Please update your UF2 File for the Beta XRP Controller here: "
+                              + "https://github.com/Open-STEM/XRP_MicroPython/releases/tag/v2.0.0")