diff --git a/platform/arduino/knx_facade_samd.cpp b/platform/arduino/knx_facade_samd.cpp
deleted file mode 100644
index db2e2f4..0000000
--- a/platform/arduino/knx_facade_samd.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-#include "knx_facade.h"
-#if 0
-KnxFacade knx;
-
-
-#define SerialDBG SerialUSB
-
-void buttonUp();
-long buttonTimestamp = 0;
-void buttonDown()
-{
-    buttonTimestamp = millis();
-    attachInterrupt(knx.buttonPin(), buttonUp, RISING);
-}
-
-void buttonUp()
-{
-    // keep short/long for now 
-    if (millis() - buttonTimestamp > 1000)
-    {
-        SerialDBG.println("long button press");
-    }
-    else
-    {
-        SerialDBG.println("short button press");
-    }
-
-    if (knx.progMode())
-    {
-        digitalWrite(knx.ledPin(), LOW);
-        knx.progMode(false);
-    }
-    else
-    {
-        digitalWrite(knx.ledPin(), HIGH);
-        knx.progMode(true);
-    }
-
-    attachInterrupt(knx.buttonPin(), buttonDown, FALLING);
-}
-
-KnxFacade::KnxFacade() : _bau(_platform)
-{
-    manufacturerId(0xfa);
-}
-
-bool KnxFacade::enabled()
-{
-    return _bau.enabled();
-}
-
-void KnxFacade::enabled(bool value)
-{
-    _bau.enabled(true);
-}
-
-bool KnxFacade::progMode()
-{
-    return _bau.deviceObject().progMode();
-}
-
-void KnxFacade::progMode(bool value)
-{
-    _bau.deviceObject().progMode(value);
-}
-
-bool KnxFacade::configured()
-{
-    return _bau.configured();
-}
-
-uint32_t KnxFacade::ledPin()
-{
-    return _ledPin;
-}
-
-void KnxFacade::ledPin(uint32_t value)
-{
-    _ledPin = value;
-}
-
-uint32_t KnxFacade::buttonPin()
-{
-    return _buttonPin;
-}
-
-void KnxFacade::buttonPin(uint32_t value)
-{
-    _buttonPin = value;
-}
-
-void KnxFacade::readMemory()
-{
-    _bau.readMemory();
-}
-
-void KnxFacade::loop()
-{
-    _bau.loop();
-}
-
-void KnxFacade::registerGroupObjects(GroupObject* groupObjects, uint16_t count)
-{
-    _bau.groupObjectTable().groupObjects(groupObjects, count);
-}
-
-void KnxFacade::manufacturerId(uint16_t value)
-{
-    _bau.deviceObject().manufacturerId(value);
-}
-
-void KnxFacade::bauNumber(uint32_t value)
-{
-    _bau.deviceObject().bauNumber(value);
-}
-
-void KnxFacade::orderNumber(const char* value)
-{
-    _bau.deviceObject().orderNumber(value);
-}
-
-void KnxFacade::hardwareType(uint8_t* value)
-{
-    _bau.deviceObject().hardwareType(value);
-}
-
-void KnxFacade::version(uint16_t value)
-{
-    _bau.deviceObject().version(value);
-}
-
-void KnxFacade::start()
-{
-    pinMode(_ledPin, OUTPUT);
-
-    pinMode(_buttonPin, INPUT_PULLUP);
-    attachInterrupt(_buttonPin, buttonDown, FALLING);
-    enabled(true);
-}
-
-uint8_t* KnxFacade::paramData(uint32_t addr)
-{
-    if (!_bau.configured())
-        return nullptr;
-    
-    return _bau.parameters().data(addr);
-}
-
-uint8_t KnxFacade::paramByte(uint32_t addr)
-{
-    if (!_bau.configured())
-        return 0;
-
-    return _bau.parameters().getByte(addr);
-}
-
-uint16_t KnxFacade::paramWord(uint32_t addr)
-{
-    if (!_bau.configured())
-        return 0;
-
-    return _bau.parameters().getWord(addr);
-}
-
-uint32_t KnxFacade::paramInt(uint32_t addr)
-{
-    if (!_bau.configured())
-        return 0;
-
-    return _bau.parameters().getInt(addr);
-}
-
-
-#endif
\ No newline at end of file