diff --git a/src/bluetoothmode.h b/src/bluetoothmode.h
new file mode 100644
index 0000000..8f58989
--- /dev/null
+++ b/src/bluetoothmode.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <cstdint>
+
+namespace {
+enum class BluetoothMode : uint8_t
+{
+    Off,
+    Master,
+    Slave
+};
+}
diff --git a/src/main.cpp b/src/main.cpp
index 4a440b3..3095bb2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -18,6 +18,7 @@
 #include "ota.h"
 #include "presets.h"
 #include "statistics.h"
+#include "actions/bluetoothbeginaction.h"
 #include "actions/bluetoothbeginmasteraction.h"
 #include "actions/bluetoothconnectbmsaction.h"
 #include "webserver.h"
@@ -73,11 +74,15 @@ void setup()
     WiFi.softAP(deviceName, "Passwort_123");
     WiFi.begin("realraum", "r3alraum");
 
-    BluetoothBeginMasterAction{}.triggered();
+    if (settings.bluetoothMode == BluetoothMode::Master)
+    {
+        BluetoothBeginMasterAction{}.triggered();
 #ifdef FEATURE_BMS
-    if (settings.autoConnectBms)
-        BluetoothConnectBmsAction{}.triggered();
+        if (settings.autoConnectBms)
+            BluetoothConnectBmsAction{}.triggered();
 #endif
+    } else if (settings.bluetoothMode == BluetoothMode::Slave)
+        BluetoothBeginAction{}.triggered();
 
     front.serial.get().begin(38400, SERIAL_8N1, PINS_RX1, PINS_TX1);
     back.serial.get().begin(38400, SERIAL_8N1, PINS_RX2, PINS_TX2);
diff --git a/src/presets.h b/src/presets.h
index cd8c20b..8a1393c 100644
--- a/src/presets.h
+++ b/src/presets.h
@@ -112,7 +112,8 @@ constexpr Settings defaultSettings{
 #ifdef FEATURE_BMS
     .autoConnectBms = false,
 #endif
-    .reverseBeep = true,
+    .bluetoothMode = BluetoothMode::Off,
+    .reverseBeep = false,
     .reverseBeepFreq0 = 3,
     .reverseBeepFreq1 = 0,
     .reverseBeepDuration0 = 500,
diff --git a/src/settings.h b/src/settings.h
index 0a2a81f..836443d 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -4,6 +4,8 @@
 
 #include "bobbycar-protocol/protocol.h"
 
+#include "bluetoothmode.h"
+
 namespace {
 enum class LarsmModeMode : uint8_t { Mode1, Mode2, Mode3, Mode4 };
 
@@ -12,6 +14,9 @@ struct Settings
 #ifdef FEATURE_BMS
     bool autoConnectBms;
 #endif
+
+    BluetoothMode bluetoothMode;
+
     bool reverseBeep;
     uint8_t reverseBeepFreq0;
     uint8_t reverseBeepFreq1;
@@ -79,6 +84,9 @@ void Settings::executeForEverySetting(T &&callable)
 #ifdef FEATURE_BMS
     callable("autoConnectBms", autoConnectBms);
 #endif
+
+    callable("bluetoothMode", bluetoothMode);
+
     callable("reverseBeep", reverseBeep);
     callable("revBeepFreq0", reverseBeepFreq0);
     callable("revBeepFreq1", reverseBeepFreq1);
diff --git a/src/settingssaver.h b/src/settingssaver.h
index dec0fd0..71cf731 100644
--- a/src/settingssaver.h
+++ b/src/settingssaver.h
@@ -7,6 +7,7 @@
 #include <nvs.h>
 
 #include "settings.h"
+#include "bluetoothmode.h"
 
 namespace {
 class SettingsSaver
@@ -91,6 +92,14 @@ template<> struct nvsGetterHelper<LarsmModeMode> { static esp_err_t nvs_get(nvs_
             *out_value = LarsmModeMode(tempValue);
         return err;
     }};
+template<> struct nvsGetterHelper<BluetoothMode> { static esp_err_t nvs_get(nvs_handle handle, const char* key, BluetoothMode* out_value)
+    {
+        uint8_t tempValue;
+        esp_err_t err = nvs_get_u8(handle, key, &tempValue);
+        if (err == ESP_OK)
+            *out_value = BluetoothMode(tempValue);
+        return err;
+    }};
 
 bool SettingsSaver::load(Settings &settings)
 {
@@ -129,6 +138,10 @@ template<> struct nvsSetterHelper<LarsmModeMode> { static esp_err_t nvs_set(nvs_
     {
         return nvs_set_u8(handle, key, uint8_t(value));
     }};
+template<> struct nvsSetterHelper<BluetoothMode> { static esp_err_t nvs_set(nvs_handle handle, const char* key, BluetoothMode value)
+    {
+        return nvs_set_u8(handle, key, uint8_t(value));
+    }};
 
 bool SettingsSaver::save(Settings &settings)
 {