// Rel1 btn click
        mRel1Btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mRel1Btn.setClickable(false);
                if (mBlueAdapter.isEnabled()) {
                    try {

                        OutputStream mOutputStream = mBtSocket.getOutputStream();
                        mOutputStream.write(RELAY1_JDY30_ON);

                        //showToast("Relais 1 an");

                        try {
                            Thread.sleep(1000);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                        mOutputStream.write(RELAY1_JDY30_OFF);

                        //showToast("Relais 1 aus");
                    }
                    catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                mRel1Btn.setClickable(true);
            }