const int strobePin = 8; const int clockPin = 9; const int dataPin = 10; void setup() { pinMode(strobePin, OUTPUT); pinMode(clockPin, OUTPUT); pinMode(dataPin, OUTPUT); // set up our pins as OUTPUTs digitalWrite(strobePin, LOW); //set the strobe low so it'll accept instruction shiftOut(dataPin, clockPin, LSBFIRST, 0x8F); // send the instruction to activate the board and set brightness to max digitalWrite(strobePin, HIGH); //we will always set the strobe high after the completion of each instruction and data set } void loop() { // put your main code here, to run repeatedly: }