diff --git a/src/plotcontrolpanel.cpp b/src/plotcontrolpanel.cpp
new file mode 100644
--- /dev/null
+++ b/src/plotcontrolpanel.cpp
@@ -0,0 +1,151 @@
+/*
+  Copyright © 2016 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "plotcontrolpanel.h"
+#include "ui_plotcontrolpanel.h"
+
+#include <QVariant>
+
+/// Used for scale range selection combobox
+struct Range
+{
+    double rmin;
+    double rmax;
+};
+
+Q_DECLARE_METATYPE(Range);
+
+PlotControlPanel::PlotControlPanel(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::PlotControlPanel)
+{
+    ui->setupUi(this);
+
+    // set limits for axis limit boxes
+    ui->spYmin->setRange((-1) * std::numeric_limits<double>::max(),
+                         std::numeric_limits<double>::max());
+
+    ui->spYmax->setRange((-1) * std::numeric_limits<double>::max(),
+                         std::numeric_limits<double>::max());
+
+    // connect signals
+    connect(ui->spNumOfSamples, SIGNAL(valueChanged(int)),
+            this, SIGNAL(numOfSamplesChanged(int)));
+
+    connect(ui->cbAutoScale, &QCheckBox::toggled,
+            this, &PlotControlPanel::onAutoScaleChecked);
+
+    connect(ui->spYmax, SIGNAL(valueChanged(double)),
+            this, SLOT(onYScaleChanged()));
+
+    connect(ui->spYmin, SIGNAL(valueChanged(double)),
+            this, SLOT(onYScaleChanged()));
+
+    // init scale range preset list
+    for (int nbits = 8; nbits <= 24; nbits++) // signed binary formats
+    {
+        int rmax = pow(2, nbits-1)-1;
+        int rmin = -rmax-1;
+        Range r = {double(rmin),  double(rmax)};
+        ui->cbRangePresets->addItem(
+            QString().sprintf("Signed %d bits %d to +%d", nbits, rmin, rmax),
+            QVariant::fromValue(r));
+    }
+    for (int nbits = 8; nbits <= 24; nbits++) // unsigned binary formats
+    {
+        int rmax = pow(2, nbits)-1;
+        ui->cbRangePresets->addItem(
+            QString().sprintf("Unsigned %d bits %d to +%d", nbits, 0, rmax),
+            QVariant::fromValue(Range{0, double(rmax)}));
+    }
+    ui->cbRangePresets->addItem("-1 to +1", QVariant::fromValue(Range{-1, +1}));
+    ui->cbRangePresets->addItem("0 to +1", QVariant::fromValue(Range{0, +1}));
+    ui->cbRangePresets->addItem("-100 to +100", QVariant::fromValue(Range{-100, +100}));
+    ui->cbRangePresets->addItem("0 to +100", QVariant::fromValue(Range{0, +100}));
+
+    QObject::connect(ui->cbRangePresets, SIGNAL(activated(int)),
+                     this, SLOT(onRangeSelected()));
+}
+
+PlotControlPanel::~PlotControlPanel()
+{
+    delete ui;
+}
+
+unsigned PlotControlPanel::numOfSamples()
+{
+    return ui->spNumOfSamples->value();
+}
+
+void PlotControlPanel::onAutoScaleChecked(bool checked)
+{
+    if (checked)
+    {
+        // ui->plot->setAxis(true);
+        ui->lYmin->setEnabled(false);
+        ui->lYmax->setEnabled(false);
+        ui->spYmin->setEnabled(false);
+        ui->spYmax->setEnabled(false);
+
+        emit scaleChanged(true); // autoscale
+    }
+    else
+    {
+        ui->lYmin->setEnabled(true);
+        ui->lYmax->setEnabled(true);
+        ui->spYmin->setEnabled(true);
+        ui->spYmax->setEnabled(true);
+
+        // ui->plot->setAxis(false,  ui->spYmin->value(), ui->spYmax->value());
+        emit scaleChanged(false, ui->spYmin->value(), ui->spYmax->value());
+    }
+}
+
+void PlotControlPanel::onYScaleChanged()
+{
+    emit scaleChanged(false, ui->spYmin->value(), ui->spYmax->value());
+}
+
+bool PlotControlPanel::autoScale()
+{
+    return ui->cbAutoScale->isChecked();
+}
+
+double PlotControlPanel::yMax()
+{
+    return ui->spYmax->value();
+}
+
+double PlotControlPanel::yMin()
+{
+    return ui->spYmin->value();
+}
+
+void PlotControlPanel::onRangeSelected()
+{
+    Range r = ui->cbRangePresets->currentData().value<Range>();
+    ui->spYmin->setValue(r.rmin);
+    ui->spYmax->setValue(r.rmax);
+    ui->cbAutoScale->setChecked(false);
+}
+
+void PlotControlPanel::setChannelNamesModel(QAbstractItemModel * model)
+{
+    ui->lvChannelNames->setModel(model);
+}