diff --git a/main.cpp b/main.cpp
index ecda1b3..32d30ca 100644
--- a/main.cpp
+++ b/main.cpp
@@ -9,22 +9,25 @@
 #include "commands_to_update_dc.h"
 #include "plugins/interfaces.h"
 
+#include "DCPlugin/include/hwapi.h"
+
 #include <unistd.h>
 #include <thread>
+#include <memory>
 
-static void updateDC(hwinf const *hw) {
-    qDebug() << "ENTER";
-    //return;
-    for (int i=0; i< 1;++i) {
-        hw->dc_updateDC("dc2c4.bin", "115200", "ttymxc2");
+//static void updateDC(hwinf const *hw) {
+static void updateDC(std::unique_ptr<hwinf> hw,
+                     char const *fileToSendToDC,
+                     char const *baudrate,
+                     char const *serialInterface) {
+    for (int i=0; i < 1;++i) {
+        hw->dc_updateDC(fileToSendToDC, baudrate, serialInterface);
         std::this_thread::sleep_for(std::chrono::milliseconds(3000));
     }
-    qDebug() << "LEAVE";
     QCoreApplication::quit();
 }
 
-int main(int argc, char *argv[])
-{
+int main(int argc, char *argv[]) {
     QApplication a(argc, argv);
 
     if (!messageHandlerInstalled()) { // change internal qt-QDebug-handling
@@ -33,15 +36,17 @@ int main(int argc, char *argv[])
         //setDebugLevel(QtMsgType::QtDebugMsg);
     }
 
-    DCPlugin plugin;
-    hwinf const* hw = plugin.loadPlugin();
-    if (!hw) {
-        qCritical() << "Cannot load plugin";
+    if (argc > 2) {
+        qCritical() << "Usage: " << argv[0] << "<file to send to dc>";
         return -1;
     }
 
-    std::thread t(updateDC, hw);
-
+    std::unique_ptr<hwinf> hw(new hwapi());
+#ifdef PTU5
+    std::thread t(updateDC, std::move(hw), argv[1], "115200", "ttymxc2");
+#else
+    std::thread t(updateDC, std::move(hw), "dc2c4.bin", "115200", "ttyUSB0");
+#endif
     int ret = a.exec();
     t.join();
     return ret;