diff --git a/rec_to_nwb/processing/nwb/components/dio/dio_files.py b/rec_to_nwb/processing/nwb/components/dio/dio_files.py
index a66b93c4..3e2a65cc 100644
--- a/rec_to_nwb/processing/nwb/components/dio/dio_files.py
+++ b/rec_to_nwb/processing/nwb/components/dio/dio_files.py
@@ -3,33 +3,51 @@
 
 
 class DioFiles:
-
     def __init__(self, directories, dio_metadata):
         self.directories = directories
         self.dio_metadata = dio_metadata
 
     def get_files(self):
-        multiple_datasets_dio_files = [self.__get_dict(
-            dataset) for dataset in self.directories]
+        multiple_datasets_dio_files = [
+            self.__get_dict(dataset) for dataset in self.directories
+        ]
         filtered_datasets_dio_files = self.__filter_files(
-            multiple_datasets_dio_files, self.dio_metadata)
+            multiple_datasets_dio_files, self.dio_metadata
+        )
         return filtered_datasets_dio_files
 
     @classmethod
     def __filter_files(cls, multiple_datasets_dio_files, dio_metadata):
-        return [{dio_file: single_dataset[dio_file] for dio_file in single_dataset
-                 if dio_file in [dio_event['description'] for dio_event in dio_metadata]}
-                for single_dataset in multiple_datasets_dio_files]
+        return [
+            {
+                dio_file: single_dataset[dio_file]
+                for dio_file in single_dataset
+                if dio_file in [dio_event["description"] for dio_event in dio_metadata]
+            }
+            for single_dataset in multiple_datasets_dio_files
+        ]
 
     @classmethod
     def __get_dict(cls, directory):
         dio_dict = {}
-        for file in glob.glob(os.path.join(directory, '*.dat')):
-            if file.split('.')[-2].split('_')[-2] == "MCU":
+        for file in glob.glob(os.path.join(directory, "*.dat")):
+            if file.split(".")[-2].split("_")[-2] == "MCU":
                 # To avoid this warning, remove MCU_IO data from being displayed via the .trodesconf, this will stop MCU_IO extraction
-                print(f'WARNING: MCU_IO data are not currently handled by rec_to_nwb. Skipping file: {file}.')
+                print(
+                    f"WARNING: MCU_IO data are not currently handled by rec_to_nwb. Skipping file: {file}."
+                )
                 # TODO: find MCU_IO binaries if they exist and appropriately insert these data into nwbs in future version of rec_to_nwb
+            elif file.split(".")[-2].split("_")[-2] == "Controller":
+                print(
+                    f"WARNING: Controller_IO data are not currently handled by rec_to_nwb. Skipping file: {file}."
+                )
             else:
-                dio_name = file.split('.')[-2].split('_')[-1] # This string should be of the form "Din12" "Dout5"
+                if not(file.split(".")[-2].split("_")[-2] == "ECU"):
+                 print(
+                    f"WARNING: {file.split('.')[-2].split("_")[-2]} is not a recognized dio type. Including file: {file}, but proceed with caution."
+                )   
+                dio_name = file.split(".")[-2].split("_")[
+                    -1
+                ]  # This string should be of the form "Din12" "Dout5"
                 dio_dict[dio_name] = os.path.join(directory, file)
         return dio_dict