use /opt/arduino installation

diff --git a/HX711/Makefile b/HX711/Makefile
index 5f20fd6..cb1f10a 100644 (file)
--- a/HX711/Makefile
+++ b/HX711/Makefile
@@ -1,5 +1,7 @@
 # Arduino Make file. Refer to https://github.com/sudar/Arduino-Makefile
 
+ARDUINO_DIR=/opt/arduino
+
 BOARD_TAG    = leonardo
 
 include /usr/share/arduino/Arduino.mk