diff --git a/software/contrib/cvecorder.py b/software/contrib/cvecorder.py
index b85afbb7b..7f648f844 100644
--- a/software/contrib/cvecorder.py
+++ b/software/contrib/cvecorder.py
@@ -6,7 +6,8 @@
 import json
 import gc
 import os
-#import framebuf
+import micropython
+import framebuf
 
 '''
 CVecorder
@@ -86,7 +87,7 @@ def __init__(self):
 
         # Test routine, pick a random bank n times and save, then load the state
         if self.initTest:
-            #print(micropython.mem_info("level"))
+            print(micropython.mem_info("level"))
             for n in range(3000):
                 # Clear vars
                 #self.CvRecording = []
@@ -271,7 +272,7 @@ def saveState(self):
                     print(f'[{attempts}] Error: Memory allocation failed, retrying: {e}')
                 if self.debugLogging:
                     self.writeToDebugLog(f"[saveState] Error: Memory allocation failed, retrying: {e}")
-                    #print(micropython.mem_info("level"))
+                    print(micropython.mem_info("level"))
                 else:
                     pass
 
@@ -430,9 +431,8 @@ def writeToDebugLog(self, msg):
     def showLoadingScreen(self):
         # push the bytearray of the Rpi logo into a 32 x 32 framebuffer, then show on the screen
         
-        # framebuf stuff commented out until we have framebuf testing built
-        # buffer = bytearray(b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00|?\x00\x01\x86@\x80\x01\x01\x80\x80\x01\x11\x88\x80\x01\x05\xa0\x80\x00\x83\xc1\x00\x00C\xe3\x00\x00~\xfc\x00\x00L'\x00\x00\x9c\x11\x00\x00\xbf\xfd\x00\x00\xe1\x87\x00\x01\xc1\x83\x80\x02A\x82@\x02A\x82@\x02\xc1\xc2@\x02\xf6>\xc0\x01\xfc=\x80\x01\x18\x18\x80\x01\x88\x10\x80\x00\x8c!\x00\x00\x87\xf1\x00\x00\x7f\xf6\x00\x008\x1c\x00\x00\x0c \x00\x00\x03\xc0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
-        # fb = framebuf.FrameBuffer(buffer, 32, 32, framebuf.MONO_HLSB)
+        buffer = bytearray(b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00|?\x00\x01\x86@\x80\x01\x01\x80\x80\x01\x11\x88\x80\x01\x05\xa0\x80\x00\x83\xc1\x00\x00C\xe3\x00\x00~\xfc\x00\x00L'\x00\x00\x9c\x11\x00\x00\xbf\xfd\x00\x00\xe1\x87\x00\x01\xc1\x83\x80\x02A\x82@\x02A\x82@\x02\xc1\xc2@\x02\xf6>\xc0\x01\xfc=\x80\x01\x18\x18\x80\x01\x88\x10\x80\x00\x8c!\x00\x00\x87\xf1\x00\x00\x7f\xf6\x00\x008\x1c\x00\x00\x0c \x00\x00\x03\xc0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
+        fb = framebuf.FrameBuffer(buffer, 32, 32, framebuf.MONO_HLSB)
         oled.fill(0)
         #oled.blit(fb, 0,0)
         oled.text('Loading...', 40, 12, 1)
diff --git a/software/firmware/europi.py b/software/firmware/europi.py
index c38af7127..fe2ff2dae 100644
--- a/software/firmware/europi.py
+++ b/software/firmware/europi.py
@@ -13,6 +13,7 @@
 
 Will set the CV output 3 to a voltage of 4.5V.
 """
+import sys
 import time
 
 from machine import ADC
@@ -22,10 +23,9 @@
 
 from ssd1306 import SSD1306_I2C
 
-try:
-    import micropython
+if sys.implementation.name == "micropython":
     TEST_ENV = False # We're in micropython, so we can assume access to real hardware
-except ModuleNotFoundError:
+else:
     TEST_ENV = True # This var is set when we don't have any real hardware, for example in a test or doc generation setting
 
 try:
diff --git a/software/tests/mocks/framebuf.py b/software/tests/mocks/framebuf.py
new file mode 100644
index 000000000..a25437a71
--- /dev/null
+++ b/software/tests/mocks/framebuf.py
@@ -0,0 +1,3 @@
+
+class FrameBuffer:
+    pass
\ No newline at end of file
diff --git a/software/tests/mocks/micropython.py b/software/tests/mocks/micropython.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/software/tests/mocks/rp2.py b/software/tests/mocks/rp2.py
new file mode 100644
index 000000000..c5be4606d
--- /dev/null
+++ b/software/tests/mocks/rp2.py
@@ -0,0 +1,16 @@
+import functools
+
+class PIO:
+    OUT_LOW = 0
+
+class StateMachine:
+    pass
+
+
+def asm_pio(**kwargs):
+    def decorator(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            pass
+        return wrapper
+    return decorator
\ No newline at end of file