allow disabling global Serial and Serial1 object (#2807)

allow the user to disable specific global `Serial` objects to save memory. that's 0x1c bytes per object.
esp8266 · Dec 29, 2017 · 2b868aa · 2b868aa
1 parent 2880354
commit 2b868aa
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/cores/esp8266/HardwareSerial.cpp b/cores/esp8266/HardwareSerial.cpp
@@ -180,5 +180,10 @@ HardwareSerial::operator bool() const
 }
 
 
+#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_SERIAL)
 HardwareSerial Serial(UART0);
+#endif
+#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_SERIAL1)
 HardwareSerial Serial1(UART1);
+#endif
+