diff --git a/src/demodisplay.h b/src/demodisplay.h
deleted file mode 100644
index 750f5cd..0000000
--- a/src/demodisplay.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#pragma once
-
-#include "actioninterface.h"
-#include "display.h"
-
-namespace {
-class DemoDisplay : public Display, public virtual ActionInterface
-{
-public:
-    void confirm() override;
-};
-
-void DemoDisplay::confirm()
-{
-    triggered();
-}
-}
diff --git a/src/displays/bmsdisplay.h b/src/displays/bmsdisplay.h
index 1c47c8b..a3cc21e 100644
--- a/src/displays/bmsdisplay.h
+++ b/src/displays/bmsdisplay.h
@@ -2,7 +2,7 @@
 
 #include <Arduino.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 #include "globals.h"
 #include "bmsutils.h"
@@ -15,7 +15,7 @@ class StatusDisplay;
 }
 namespace {
 #ifdef FEATURE_BMS
-class BmsDisplay : public DemoDisplay, public SwitchScreenAction<MainMenu>
+class BmsDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<MainMenu>>
 {
 public:
     void initScreen() override;
diff --git a/src/displays/calibratedisplay.h b/src/displays/calibratedisplay.h
index 61f1c20..e3fa022 100644
--- a/src/displays/calibratedisplay.h
+++ b/src/displays/calibratedisplay.h
@@ -4,9 +4,10 @@
 
 #include <WString.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 #include "globals.h"
+#include "utils.h"
 #include "texts.h"
 #include "widgets/label.h"
 #include "widgets/progressbar.h"
@@ -18,39 +19,68 @@ class BoardcomputerHardwareSettingsMenu;
 }
 
 namespace {
-class CalibrateDisplay : public DemoDisplay
+class CalibrateDisplay : public Display
 {
-    using Base = DemoDisplay;
-
 public:
     CalibrateDisplay() = default;
     CalibrateDisplay(bool bootup);
 
     void start() override;
     void initScreen() override;
+    void update() override;
     void redraw() override;
     void stop() override;
 
+    void rotate(int offset) override;
+
     void back() override;
 
-    void triggered() override;
+    void confirm() override;
 
 private:
+    void copyFromSettings();
+    void copyToSettings();
+
     const bool m_bootup{false};
     ModeInterface *m_oldMode;
     IgnoreInputMode m_mode{0, ControlType::FieldOrientedControl, ControlMode::Torque};
 
-    std::array<Label, 4> m_labels {{
-        Label{25, 50}, // 100, 23
-        Label{25, 75}, // 100, 23
-        Label{25, 100}, // 100, 23
-        Label{25, 125} // 100, 23
+    std::array<Label, 11> m_labels {{
+        Label{25, 72}, // 100, 23
+        Label{145, 72}, // 100, 23
+        Label{25, 97}, // 100, 23
+        Label{145, 97}, // 100, 23
+
+        Label{25, 172}, // 100, 23
+        Label{145, 172}, // 100, 23
+        Label{25, 197}, // 100, 23
+        Label{145, 197}, // 100, 23
+
+        Label{25, 247}, // 190, 23
+
+        Label{25, 275}, // 100, 23
+        Label{145, 275}, // 100, 23
     }};
 
     std::array<ProgressBar, 2> m_progressBars {{
-        ProgressBar{20, 200, 200, 10, 0, 1000},
-        ProgressBar{20, 230, 200, 10, 0, 1000}
+        ProgressBar{20, 129, 200, 10, 0, 1000},
+        ProgressBar{20, 229, 200, 10, 0, 1000}
     }};
+
+    enum Status {
+        Begin,
+        GasMin,
+        GasMax,
+        BremsMin,
+        BremsMax,
+        Confirm
+    };
+
+    int8_t m_selectedButton, m_renderedButton;
+
+    Status m_status;
+    int16_t m_gasMin, m_gasMax, m_bremsMin, m_bremsMax;
+    float m_gas, m_brems;
 };
 
 CalibrateDisplay::CalibrateDisplay(bool bootup) :
@@ -62,6 +92,11 @@ void CalibrateDisplay::start()
 {
     m_oldMode = currentMode;
     currentMode = &m_mode;
+    m_selectedButton = 0;
+    m_status = Status::Begin;
+    copyFromSettings();
+    m_gas = 0.f;
+    m_brems = 0.f;
 }
 
 void CalibrateDisplay::initScreen()
@@ -76,23 +111,78 @@ void CalibrateDisplay::initScreen()
 
     tft.setTextColor(TFT_WHITE, TFT_BLACK);
 
+    tft.drawString("gas:", 25, 47);
+    tft.drawString("brems:", 25, 147);
+
     for (auto &label : m_labels)
         label.start();
 
     for (auto &progressBar : m_progressBars)
         progressBar.start();
+
+    m_renderedButton = -1;
+}
+
+void CalibrateDisplay::update()
+{
+    m_gas = scaleBetween<float>(raw_gas, m_gasMin, m_gasMax, 0., 1000.);
+    m_brems = scaleBetween<float>(raw_brems, m_bremsMin, m_bremsMax, 0., 1000.);
 }
 
 void CalibrateDisplay::redraw()
 {
-    m_labels[0].redraw(String{gas});
-    m_labels[1].redraw(String{raw_gas});
+    m_labels[0].redraw(toString(m_gas));
+    m_labels[1].redraw(toString(raw_gas));
+    m_labels[2].redraw(toString(m_gasMin));
+    m_labels[3].redraw(toString(m_gasMax));
 
-    m_labels[2].redraw(String{brems});
-    m_labels[3].redraw(String{raw_brems});
+    m_progressBars[0].redraw(m_gas);
 
-    m_progressBars[0].redraw(gas);
-    m_progressBars[1].redraw(brems);
+    m_labels[4].redraw(toString(m_brems));
+    m_labels[5].redraw(toString(raw_brems));
+    m_labels[6].redraw(toString(m_bremsMin));
+    m_labels[7].redraw(toString(m_bremsMax));
+
+    m_progressBars[1].redraw(m_brems);
+
+    m_labels[8].redraw([&](){
+        switch (m_status)
+        {
+        case Status::Begin: return "Start calibrating?";
+        case Status::GasMin: return "Release gas";
+        case Status::GasMax: return "Press gas";
+        case Status::BremsMin: return "Release brems";
+        case Status::BremsMax: return "Press brems";
+        case Status::Confirm: return "Verify";
+        }
+        __builtin_unreachable();
+    }());
+
+    m_labels[9].redraw([&](){
+        switch (m_status)
+        {
+        case Status::Begin: return "Yes";
+        case Status::GasMin:
+        case Status::GasMax:
+        case Status::BremsMin:
+        case Status::BremsMax: return "Next";
+        case Status::Confirm: return "Save";
+        }
+        __builtin_unreachable();
+    }());
+
+    m_labels[10].redraw([&](){
+        switch (m_status)
+        {
+        case Status::Begin: return "No";
+        case Status::GasMin:
+        case Status::GasMax:
+        case Status::BremsMin:
+        case Status::BremsMax:
+        case Status::Confirm: return "Restart";
+        }
+        __builtin_unreachable();
+    }());
 }
 
 void CalibrateDisplay::stop()
@@ -101,17 +191,59 @@ void CalibrateDisplay::stop()
         currentMode = m_oldMode;
 }
 
-void CalibrateDisplay::back()
+void CalibrateDisplay::rotate(int offset)
 {
-    if (!m_bootup)
-        switchScreen<BoardcomputerHardwareSettingsMenu>();
+    m_selectedButton += offset;
+
+    if (m_selectedButton < 0)
+        m_selectedButton = 1;
+    if (m_selectedButton > 1)
+        m_selectedButton = 0;
 }
 
-void CalibrateDisplay::triggered()
+void CalibrateDisplay::back()
 {
-    if (m_bootup)
-        switchScreen<StatusDisplay>();
+    if (m_status == Status::Begin)
+    {
+        if (!m_bootup)
+            switchScreen<BoardcomputerHardwareSettingsMenu>();
+    }
     else
-        switchScreen<BoardcomputerHardwareSettingsMenu>();
+    {
+        m_status = Status::Begin;
+        copyFromSettings();
+    }
+}
+
+void CalibrateDisplay::confirm()
+{
+    if (m_status == Status::Begin)
+    {
+        if (m_bootup)
+            switchScreen<StatusDisplay>();
+        else
+            switchScreen<BoardcomputerHardwareSettingsMenu>();
+    }
+    else
+    {
+        m_status = Status::Begin;
+        copyFromSettings();
+    }
+}
+
+void CalibrateDisplay::copyFromSettings()
+{
+    m_gasMin = settings.boardcomputerHardware.gasMin;
+    m_gasMax = settings.boardcomputerHardware.gasMax;
+    m_bremsMin = settings.boardcomputerHardware.bremsMin;
+    m_bremsMax = settings.boardcomputerHardware.bremsMax;
+}
+
+void CalibrateDisplay::copyToSettings()
+{
+    settings.boardcomputerHardware.gasMin = m_gasMin;
+    settings.boardcomputerHardware.gasMax = m_gasMax;
+    settings.boardcomputerHardware.bremsMin = m_bremsMin;
+    settings.boardcomputerHardware.bremsMax = m_bremsMax;
 }
 }
diff --git a/src/displays/dualgraphdisplay.h b/src/displays/dualgraphdisplay.h
index 1bddc63..1976fb4 100644
--- a/src/displays/dualgraphdisplay.h
+++ b/src/displays/dualgraphdisplay.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 #include "textinterface.h"
 #include "widgets/label.h"
@@ -13,10 +13,8 @@ class GraphsMenu;
 }
 
 namespace {
-class DualGraphDisplay : public DemoDisplay, public SwitchScreenAction<GraphsMenu>, public BackActionInterface<SwitchScreenAction<GraphsMenu>>
+class DualGraphDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<GraphsMenu>>, public BackActionInterface<SwitchScreenAction<GraphsMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     void initScreen() override;
     void redraw() override;
diff --git a/src/displays/gameoflifedisplay.h b/src/displays/gameoflifedisplay.h
index 4c72b00..6be42b3 100644
--- a/src/displays/gameoflifedisplay.h
+++ b/src/displays/gameoflifedisplay.h
@@ -6,7 +6,7 @@
 #include <Arduino.h>
 #include <HardwareSerial.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 
 namespace {
@@ -14,10 +14,8 @@ class DemosMenu;
 }
 
 namespace {
-class GameOfLifeDisplay : public DemoDisplay, public SwitchScreenAction<DemosMenu>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
+class GameOfLifeDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<DemosMenu>>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     void start() override;
     void initScreen() override;
diff --git a/src/displays/gametrakcalibratedisplay.h b/src/displays/gametrakcalibratedisplay.h
index 6eee5c1..5b9b090 100644
--- a/src/displays/gametrakcalibratedisplay.h
+++ b/src/displays/gametrakcalibratedisplay.h
@@ -4,7 +4,7 @@
 
 #include <WString.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 #include "globals.h"
 #include "texts.h"
@@ -19,10 +19,8 @@ class BoardcomputerHardwareSettingsMenu;
 
 namespace {
 #ifdef FEATURE_GAMETRAK
-class GametrakCalibrateDisplay : public DemoDisplay, public SwitchScreenAction<BoardcomputerHardwareSettingsMenu>, public BackActionInterface<SwitchScreenAction<BoardcomputerHardwareSettingsMenu>>
+class GametrakCalibrateDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<BoardcomputerHardwareSettingsMenu>>, public BackActionInterface<SwitchScreenAction<BoardcomputerHardwareSettingsMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     void initScreen() override;
     void redraw() override;
diff --git a/src/displays/graphdisplay.h b/src/displays/graphdisplay.h
index 40bb1b7..dc99b1a 100644
--- a/src/displays/graphdisplay.h
+++ b/src/displays/graphdisplay.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 #include "textinterface.h"
 #include "widgets/label.h"
@@ -30,10 +30,13 @@ public:
 };
 
 template<size_t COUNT>
-class GraphDisplay : public DemoDisplay, public SwitchScreenAction<GraphsMenu>, public virtual TextInterface, public BackActionInterface<SwitchScreenAction<GraphsMenu>>, public virtual MultiStatisticsInterface<COUNT>
+class GraphDisplay :
+        public Display,
+        public virtual TextInterface,
+        public ConfirmActionInterface<SwitchScreenAction<GraphsMenu>>,
+        public BackActionInterface<SwitchScreenAction<GraphsMenu>>,
+        public virtual MultiStatisticsInterface<COUNT>
 {
-    using Base = DemoDisplay;
-
 public:
     void initScreen() override;
     void redraw() override;
diff --git a/src/displays/metersdisplay.h b/src/displays/metersdisplay.h
index 598083e..08ed1fd 100644
--- a/src/displays/metersdisplay.h
+++ b/src/displays/metersdisplay.h
@@ -4,7 +4,7 @@
 
 #include <Arduino.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 #include "globals.h"
 #include "utils.h"
@@ -16,10 +16,8 @@ class BmsDisplay;
 }
 
 namespace {
-class MetersDisplay : public DemoDisplay, public SwitchScreenAction<MainMenu>, public BackActionInterface<SwitchScreenAction<MainMenu>>
+class MetersDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<MainMenu>>, public BackActionInterface<SwitchScreenAction<MainMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     void initScreen() override;
     void redraw() override;
diff --git a/src/displays/pingpongdisplay.h b/src/displays/pingpongdisplay.h
index 1c76c02..da377f2 100644
--- a/src/displays/pingpongdisplay.h
+++ b/src/displays/pingpongdisplay.h
@@ -5,7 +5,7 @@
 #include <Arduino.h>
 #include <HardwareSerial.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 
 namespace {
@@ -13,10 +13,8 @@ class DemosMenu;
 }
 
 namespace {
-class PingPongDisplay : public DemoDisplay, public SwitchScreenAction<DemosMenu>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
+class PingPongDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<DemosMenu>>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     PingPongDisplay();
 
diff --git a/src/displays/spirodisplay.h b/src/displays/spirodisplay.h
index 6c33556..226516f 100644
--- a/src/displays/spirodisplay.h
+++ b/src/displays/spirodisplay.h
@@ -5,7 +5,7 @@
 #include <Arduino.h>
 #include <HardwareSerial.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 
 namespace {
@@ -13,10 +13,8 @@ class DemosMenu;
 }
 
 namespace {
-class SpiroDisplay : public DemoDisplay, public SwitchScreenAction<DemosMenu>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
+class SpiroDisplay : public Display, public SwitchScreenAction<DemosMenu>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     void initScreen() override;
     void redraw() override;
diff --git a/src/displays/starfielddisplay.h b/src/displays/starfielddisplay.h
index a37c678..2d56f2a 100644
--- a/src/displays/starfielddisplay.h
+++ b/src/displays/starfielddisplay.h
@@ -4,7 +4,7 @@
 
 #include <Arduino.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 #include "globals.h"
 
@@ -13,10 +13,8 @@ class DemosMenu;
 }
 
 namespace {
-class StarfieldDisplay : public DemoDisplay, public SwitchScreenAction<DemosMenu>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
+class StarfieldDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<DemosMenu>>, public BackActionInterface<SwitchScreenAction<DemosMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     StarfieldDisplay();
 
diff --git a/src/displays/statusdisplay.h b/src/displays/statusdisplay.h
index 799b2f4..698c538 100644
--- a/src/displays/statusdisplay.h
+++ b/src/displays/statusdisplay.h
@@ -3,7 +3,7 @@
 #include <HardwareSerial.h>
 #include <WiFi.h>
 
-#include "demodisplay.h"
+#include "display.h"
 #include "actions/switchscreenaction.h"
 
 #include "modeinterface.h"
@@ -20,10 +20,8 @@ class MetersDisplay;
 }
 
 namespace {
-class StatusDisplay : public DemoDisplay, public SwitchScreenAction<MainMenu>
+class StatusDisplay : public Display, public ConfirmActionInterface<SwitchScreenAction<MainMenu>>
 {
-    using Base = DemoDisplay;
-
 public:
     void initScreen() override;
     void redraw() override;
diff --git a/src/main.cpp b/src/main.cpp
index 0645d38..2810c7e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -29,10 +29,12 @@
 
 namespace {
 ModeInterface *lastMode{};
+millis_t lastPotiRead{};
 millis_t lastModeUpdate{};
 millis_t lastStatsUpdate{};
 millis_t lastDisplayRedraw{};
 
+constexpr auto potiReadRate = 50;
 constexpr auto modeUpdateRate = 50;
 constexpr auto statsUpdateRate = 50;
 constexpr auto displayRedrawRate = 50;
@@ -148,12 +150,19 @@ void loop()
     dpad3wire::update();
 #endif
 
+    if (!lastPotiRead)
+        lastPotiRead = now;
+    else if (now - lastPotiRead >= 1000/potiReadRate)
+    {
+        readPotis();
+
+        lastPotiRead = now;
+    }
+
     if (!lastModeUpdate)
         lastModeUpdate = now;
     else if (now - lastModeUpdate >= 1000/modeUpdateRate)
     {
-        readPotis();
-
         if (lastMode != currentMode)
         {
             if (lastMode)