Trick of using userDefined_Function() in Arduino

Such types of functions are called as User Defined Functions (UDFs). They are NOT the default functions of Arduino. The userDefined_Function() function can be used in the program as follows: The Code int LED0=0; int LED1=1; int LED2=2; int LED3=3; int LED4=4; int LED5=5; int LED6=6; int LED7=7; void allLEDs_ON() { digitalWrite(LED0, HIGH);    digitalWrite(LED1, […]