https://www.baldengineer.com/tag/arraysRecent content in arrays on Bald EngineerHugoen-USSun, 03 Apr 2022 07:46:40 +0000https://www.baldengineer.com/arduino-chasing-leds-with-millis.htmlThu, 12 Dec 2013 12:00:34 +0000https://www.baldengineer.com/?p=2117A popular LED project is the “Larson Scanner.” This scanner emulates the effect seen on KIT from Knight Rider and the Cylons in Battlestar Galactica. The code is usually written using “delay()” which means you can’t combine it with anything else. The following code could be put into a function, called periodically and allow your code to scan while doing other things. One thing to note, a proper Larson Scanner has some persistence to the next and previous LEDs, this code does not. Maybe that would be a good exercise for the reader?