include stdlib.h

add include stdlib.h, for function random.
2019-07-06 10:41:18 +08:00
parent 2f978e2955
commit cf72fae877
1 changed files with 2 additions and 1 deletions
@@ -2,11 +2,12 @@
 * Filename    : ColorfulLED.c
 * Description : A auto flash ColorfulLED
 * Author      : freenove
-* modification: 2016/06/14
+* modification: 2019/07/05
 **********************************************************************/
 #include <wiringPi.h>
 #include <softPwm.h>
 #include <stdio.h>
+#include <stdlib.h>

 #define ledPinRed    0
 #define ledPinGreen  1