diff --git a/source/application/main/Main.cc b/source/application/main/Main.cc
index 8ed9c5a..e27d5b5 100644
--- a/source/application/main/Main.cc
+++ b/source/application/main/Main.cc
@@ -42,12 +42,10 @@
 int main ()
 {
     hal_platform    platform;
-    data_acq_module dataAcq;
-    data_psn_module dataPsn;
     platform_timer  timer;
 
     /* Initialise the HAL and platform. */
-    hal_init(&platform, &dataAcq, &dataPsn, &timer);
+    hal_init(&platform, &timer);
 
     if (0 == hal_platform_init(&platform)) {
         /* Application information, UART should have been initialised. */
diff --git a/source/application/main/UseCaseCommonUtils.cc b/source/application/main/UseCaseCommonUtils.cc
index d439446..340a767 100644
--- a/source/application/main/UseCaseCommonUtils.cc
+++ b/source/application/main/UseCaseCommonUtils.cc
@@ -36,12 +36,7 @@
     fflush(stdout);
 }
 
-
-
-
-bool PresentInferenceResult(
-    hal_platform &platform,
-    const std::vector<arm::app::ClassificationResult> &results)
+bool PresentInferenceResult(const std::vector<arm::app::ClassificationResult> &results)
 {
     constexpr uint32_t dataPsnTxtStartX1 = 150;
     constexpr uint32_t dataPsnTxtStartY1 = 30;
@@ -51,7 +46,7 @@
 
     constexpr uint32_t dataPsnTxtYIncr = 16;  /* Row index increment. */
 
-    platform.data_psn->set_text_color(COLOR_GREEN);
+    hal_lcd_set_text_color(COLOR_GREEN);
 
     /* Display each result. */
     uint32_t rowIdx1 = dataPsnTxtStartY1 + 2 * dataPsnTxtYIncr;
@@ -66,13 +61,13 @@
                 std::to_string(results[i].m_labelIdx) +
                 " (" + std::to_string(results[i].m_normalisedVal) + ")";
 
-        platform.data_psn->present_data_text(
+        hal_lcd_display_text(
                 resultStr.c_str(), resultStr.size(),
                 dataPsnTxtStartX1, rowIdx1, false);
         rowIdx1 += dataPsnTxtYIncr;
 
         resultStr = std::to_string(i + 1) + ") " + results[i].m_label;
-        platform.data_psn->present_data_text(
+        hal_lcd_display_text(
                 resultStr.c_str(), resultStr.size(),
                 dataPsnTxtStartX2, rowIdx2, 0);
         rowIdx2 += dataPsnTxtYIncr;
@@ -134,12 +129,12 @@
     return runInf;
 }
 
-int ReadUserInputAsInt(hal_platform& platform)
+int ReadUserInputAsInt()
 {
     char chInput[128];
     memset(chInput, 0, sizeof(chInput));
 
-    platform.data_acq->get_input(chInput, sizeof(chInput));
+    hal_get_user_input(chInput, sizeof(chInput));
     return atoi(chInput);
 }
 
@@ -181,7 +176,6 @@
 bool ListFilesHandler(ApplicationContext& ctx)
 {
     auto& model = ctx.Get<Model&>("model");
-    auto& platform = ctx.Get<hal_platform&>("platform");
 
     constexpr uint32_t dataPsnTxtStartX = 20;
     constexpr uint32_t dataPsnTxtStartY = 40;
@@ -192,12 +186,12 @@
     }
 
     /* Clear the LCD */
-    platform.data_psn->clear(COLOR_BLACK);
+    hal_lcd_clear(COLOR_BLACK);
 
     /* Show the total number of embedded files. */
     std::string strNumFiles = std::string{"Total Number of Files: "} +
                                std::to_string(NUMBER_OF_FILES);
-    platform.data_psn->present_data_text(strNumFiles.c_str(),
+    hal_lcd_display_text(strNumFiles.c_str(),
                                          strNumFiles.size(),
                                          dataPsnTxtStartX,
                                          dataPsnTxtStartY,
@@ -210,7 +204,7 @@
         for (uint32_t i = 0; i < NUMBER_OF_FILES; ++i, yVal += dataPsnTxtYIncr) {
 
             std::string currentFilename{get_filename(i)};
-            platform.data_psn->present_data_text(currentFilename.c_str(),
+            hal_lcd_display_text(currentFilename.c_str(),
                                                  currentFilename.size(),
                                                  dataPsnTxtStartX, yVal, false);
 
diff --git a/source/application/main/include/UseCaseCommonUtils.hpp b/source/application/main/include/UseCaseCommonUtils.hpp
index 7f5dde6..9b6d550 100644
--- a/source/application/main/include/UseCaseCommonUtils.hpp
+++ b/source/application/main/include/UseCaseCommonUtils.hpp
@@ -31,12 +31,10 @@
   /**
    * @brief           Presents inference results using the data presentation
    *                  object.
-   * @param[in]       platform    Reference to the hal platform object.
    * @param[in]       results     Vector of classification results to be displayed.
    * @return          true if successful, false otherwise.
    **/
-bool PresentInferenceResult(hal_platform& platform,
-                            const std::vector<arm::app::ClassificationResult>& results);
+bool PresentInferenceResult(const std::vector<arm::app::ClassificationResult>& results);
 
 
 /**
@@ -82,10 +80,9 @@
 
     /**
      * @brief           Read input and return as an integer.
-     * @param[in]       platform   Reference to the hal platform object.
      * @return          Integer value corresponding to the user input.
      **/
-    int ReadUserInputAsInt(hal_platform& platform);
+    int ReadUserInputAsInt();
 
 #if VERIFY_TEST_OUTPUT
     /**