diff --git a/platformio.ini b/platformio.ini
index 6ef9b91..4d05774 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -68,6 +68,7 @@ build_flags =
 build_flags =
   ${common_env_data.build_flags}
   ${peters_platine.build_flags}
+  -DDEVICE_PREFIX=bobbyquad
   -DFEATURE_3WIRESW
   -DPINS_3WIRESW_OUT=0
   -DPINS_3WIRESW_IN1=16
@@ -131,6 +132,7 @@ build_flags =
   ${common_env_data.build_flags}
   ${peters_platine.build_flags}
   ${default_limits.build_flags}
+  -DDEVICE_PREFIX=bobbycar
   -DDEFAULT_GASMIN=400
   -DDEFAULT_GASMAX=2000
   -DDEFAULT_BREMSMIN=600
@@ -179,6 +181,7 @@ upload_port = /dev/ttyUSB*
 build_flags =
   ${common_env_data.build_flags}
   ${peters_platine.build_flags}
+  -DDEVICE_PREFIX=bobbyquad
 ;  -DFEATURE_3WIRESW
 ;  -DPINS_3WIRESW_OUT=0
 ;  -DPINS_3WIRESW_IN1=16
@@ -214,6 +217,7 @@ upload_speed = 921600
 
 build_flags =
   ${common_env_data.build_flags}
+  -DDEVICE_PREFIX=testbench
   -DILI9341_DRIVER=1
   -DTFT_MOSI=22
   -DTFT_SCLK=21
@@ -260,6 +264,7 @@ upload_speed = 921600
 
 build_flags =
   ${common_env_data.build_flags}
+  -DDEVICE_PREFIX=bobbyquad
   -DUSER_SETUP_LOADED=1
   -DRPI_DISPLAY_TYPE
   -DILI9486_DRIVER
diff --git a/src/actions/bluetoothbeginaction.h b/src/actions/bluetoothbeginaction.h
index c73a562..0801fb7 100644
--- a/src/actions/bluetoothbeginaction.h
+++ b/src/actions/bluetoothbeginaction.h
@@ -11,7 +11,7 @@ class BluetoothBeginAction : public virtual ActionInterface
 public:
     void triggered() override
     {
-        if (!bluetoothSerial.begin("bobbyquad"))
+        if (!bluetoothSerial.begin(deviceName))
         {
             Serial.println("Could not begin bluetooth");
             // TODO: better error handling
diff --git a/src/actions/bluetoothbeginmasteraction.h b/src/actions/bluetoothbeginmasteraction.h
index d4b4253..3d862f2 100644
--- a/src/actions/bluetoothbeginmasteraction.h
+++ b/src/actions/bluetoothbeginmasteraction.h
@@ -11,7 +11,7 @@ class BluetoothBeginMasterAction : public virtual ActionInterface
 public:
     void triggered() override
     {
-        if (!bluetoothSerial.begin("bobbyquad", true))
+        if (!bluetoothSerial.begin(deviceName, true))
         {
             Serial.println("Could not begin bluetooth master");
             // TODO: better error handling
diff --git a/src/globals.h b/src/globals.h
index 134402f..e36702c 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -24,6 +24,8 @@ float gametrakX, gametrakY, gametrakDist;
 #endif
 float avgSpeed, avgSpeedKmh, sumCurrent, sumAbsoluteCurrent;
 
+char deviceName[16];
+
 Settings settings;
 SettingsSaver settingsSaver;
 
diff --git a/src/main.cpp b/src/main.cpp
index f45a2f4..4a440b3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,3 +1,5 @@
+#include <cstdio>
+
 #include <Arduino.h>
 #include <HardwareSerial.h>
 #include <WiFi.h>
@@ -61,10 +63,15 @@ void setup()
 
     updateSwapFrontBack();
 
+    {
+        uint8_t macAddress[6];
+        WiFi.macAddress(&macAddress[0]);
+        std::sprintf(deviceName, __STRINGIFY(DEVICE_PREFIX) "_%02hhx%02hhx%02hhx", macAddress[3], macAddress[4], macAddress[5]);
+    }
+
     WiFi.mode(WIFI_AP_STA);
-    WiFi.softAP("bobbyquad", "Passwort_123");
+    WiFi.softAP(deviceName, "Passwort_123");
     WiFi.begin("realraum", "r3alraum");
-    //WiFi.begin("McDonalds Free WiFi 2.4GHz", "Passwort_123");
 
     BluetoothBeginMasterAction{}.triggered();
 #ifdef FEATURE_BMS