默认选中485读模式

mpmaster/src/main/java/com/xypower/mpmaster/MainActivity.java

@@ -107,6 +107,8 @@ public class MainActivity extends AppCompatActivity {
             }
         });
 
+        Switch sw = (Switch)findViewById(R.id.btn485ReadMode);
+        sw.setChecked(true);
         findViewById(R.id.btn485ReadMode).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {