Fix #1611
@@ -33,7 +33,7 @@
#endif
#define BIT(b) (1<<(b))
-#define TEST(n,b) ((n)&BIT(b)!=0)
+#define TEST(n,b) (((n)&BIT(b))!=0)
// Arduino < 1.0.0 does not define this, so we need to do it ourselves
#ifndef analogInputToDigitalPin