diff --git a/plugins/samplesource/plutosdrinput/plutosdrinputgui.cpp b/plugins/samplesource/plutosdrinput/plutosdrinputgui.cpp
index 5d9e3fdca..55a743c73 100644
--- a/plugins/samplesource/plutosdrinput/plutosdrinputgui.cpp
+++ b/plugins/samplesource/plutosdrinput/plutosdrinputgui.cpp
@@ -17,6 +17,7 @@
 #include <stdio.h>
 
 #include "device/devicesourceapi.h"
+#include "plutosdrinput.h"
 #include "ui_plutosdrinputgui.h"
 #include "plutosdrinputgui.h"
 
@@ -24,8 +25,40 @@ PlutoSDRInputGui::PlutoSDRInputGui(DeviceSourceAPI *deviceAPI, QWidget* parent)
     QWidget(parent),
     ui(new Ui::PlutoSDRInputGUI),
     m_deviceAPI(deviceAPI),
-    m_settings()
+    m_settings(),
+    m_forceSettings(true),
+    m_sampleSource(NULL),
+    m_sampleRate(0),
+    m_deviceCenterFrequency(0),
+    m_lastEngineState((DSPDeviceSourceEngine::State)-1)
 {
+    m_sampleSource = new PlutoSDRInput(m_deviceAPI);
+    m_deviceAPI->setSource(m_sampleSource);
+
+    float minF, maxF, stepF;
+    // TODO: call device core to get values
+    minF = 100000;
+    maxF = 4000000;
+    stepF = 1000;
+
+    ui->setupUi(this);
+    ui->centerFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
+    ui->centerFrequency->setValueRange(7, 325000U, 3800000U);
+
+    ui->sampleRate->setColorMapper(ColorMapper(ColorMapper::GrayGreenYellow));
+    ui->sampleRate->setValueRange(8, (uint32_t) minF, (uint32_t) maxF);
+
+    ui->lpf->setColorMapper(ColorMapper(ColorMapper::GrayYellow));
+    ui->lpf->setValueRange(6, (minF/1000)+1, maxF/1000);
+
+    ui->lpFIR->setColorMapper(ColorMapper(ColorMapper::GrayYellow));
+    ui->lpFIR->setValueRange(5, 1U, 56000U);
+
+    connect(&m_updateTimer, SIGNAL(timeout()), this, SLOT(updateHardware()));
+    connect(&m_statusTimer, SIGNAL(timeout()), this, SLOT(updateStatus()));
+    m_statusTimer.start(500);
+
+    connect(m_deviceAPI->getDeviceOutputMessageQueue(), SIGNAL(messageEnqueued()), this, SLOT(handleDSPMessages()), Qt::QueuedConnection);
 }
 
 PlutoSDRInputGui::~PlutoSDRInputGui()
diff --git a/plugins/samplesource/plutosdrinput/plutosdrinputgui.h b/plugins/samplesource/plutosdrinput/plutosdrinputgui.h
index b312705b4..79fb70d2b 100644
--- a/plugins/samplesource/plutosdrinput/plutosdrinputgui.h
+++ b/plugins/samplesource/plutosdrinput/plutosdrinputgui.h
@@ -17,13 +17,16 @@
 #ifndef PLUGINS_SAMPLESOURCE_PLUTOSDRINPUT_PLUTOSDRINPUTGUI_H_
 #define PLUGINS_SAMPLESOURCE_PLUTOSDRINPUT_PLUTOSDRINPUTGUI_H_
 
-#include <plugin/plugininstanceui.h>
 #include <QObject>
 #include <QWidget>
+#include <QTimer>
+
+#include <plugin/plugininstanceui.h>
 
 #include "plutosdrinputsettings.h"
 
 class DeviceSourceAPI;
+class DeviceSampleSource;
 
 namespace Ui {
     class PlutoSDRInputGUI;
@@ -50,6 +53,13 @@ private:
     Ui::PlutoSDRInputGUI* ui;
     DeviceSourceAPI* m_deviceAPI;
     PlutoSDRInputSettings m_settings;
+    bool m_forceSettings;
+    QTimer m_updateTimer;
+    QTimer m_statusTimer;
+    DeviceSampleSource* m_sampleSource;
+    int m_sampleRate;
+    quint64 m_deviceCenterFrequency; //!< Center frequency in device
+    int m_lastEngineState;
 };
 
 #endif /* PLUGINS_SAMPLESOURCE_PLUTOSDRINPUT_PLUTOSDRINPUTGUI_H_ */
diff --git a/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui b/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui
index 233c8c532..0580cc607 100644
--- a/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui
+++ b/plugins/samplesource/plutosdrinput/plutosdrinputgui.ui
@@ -297,7 +297,7 @@
     </widget>
    </item>
    <item>
-    <layout class="QHBoxLayout" name="ncoSampleRateLayout">
+    <layout class="QHBoxLayout" name="decimationLayout">
      <property name="topMargin">
       <number>2</number>
      </property>
@@ -399,14 +399,14 @@
       </widget>
      </item>
      <item>
-      <widget class="QLabel" name="label">
+      <widget class="QLabel" name="fcPosLabel">
        <property name="text">
         <string>Fc</string>
        </property>
       </widget>
      </item>
      <item>
-      <widget class="QComboBox" name="comboBox">
+      <widget class="QComboBox" name="fcPos">
        <property name="maximumSize">
         <size>
          <width>55</width>
@@ -446,6 +446,10 @@
        </property>
       </spacer>
      </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="sampleRateLayout">
      <item>
       <widget class="QLabel" name="samplerateLabel">
        <property name="sizePolicy">
@@ -496,23 +500,19 @@
        </property>
       </widget>
      </item>
-    </layout>
-   </item>
-   <item>
-    <widget class="Line" name="line_freq">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-    </widget>
-   </item>
-   <item>
-    <layout class="QHBoxLayout" name="lpfLayout">
-     <property name="topMargin">
-      <number>2</number>
-     </property>
-     <property name="bottomMargin">
-      <number>2</number>
-     </property>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
      <item>
       <widget class="QLabel" name="lpfLabel">
        <property name="text">
@@ -548,6 +548,7 @@
        <property name="toolTip">
         <string>Analog lowpass filer bandwidth (kHz)</string>
        </property>
+       <zorder>lpfUnits</zorder>
       </widget>
      </item>
      <item>
@@ -557,6 +558,23 @@
        </property>
       </widget>
      </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="Line" name="line_freq">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="firLayout">
+     <property name="topMargin">
+      <number>2</number>
+     </property>
+     <property name="bottomMargin">
+      <number>2</number>
+     </property>
      <item>
       <widget class="ButtonSwitch" name="lpFIREnable">
        <property name="toolTip">
@@ -596,7 +614,7 @@
       </widget>
      </item>
      <item>
-      <widget class="QLabel" name="lpFIRUnits">
+      <widget class="QLabel" name="lpfUnits_2">
        <property name="text">
         <string>kHz</string>
        </property>
@@ -663,6 +681,19 @@
        </item>
       </widget>
      </item>
+     <item>
+      <spacer name="horizontalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
     </layout>
    </item>
    <item>