Maker Spacer
October 26, 2026 This is my very first time learning and working with a UNO R3 kit. I am starting with the basic blink code. I changed the delay (1000) to delay (500). /* Blink Turns an LED on for one second, then off for one second, repeatedly. */ // Pin 13 has an LED connected on most Arduino boards. // give it a name: int led = 12 ; // the setup routine runs once when you press reset: void setup () { // initialize the digital pin as an output. pinMode ( led, OUTPUT ) ; } // the loop routine runs over and over again forever: void loop () { digitalWrite ( led, HIGH ) ; // turn the LED on (HIGH is the voltage level) delay ( 500 ) ; // wait for a second digitalWrite ( led, LOW ) ; // turn the LED off by making the voltage LOW delay ( 500 ) ; ...