Hi Dan,
All the dot positions are predicted there is no random locations, only the flickering lights has to be in random, something like this ‘https://img.diytrade.com/cdimg/856805/7954021/0/1234318277/LED_Light_Bar.jpg’, the best example would be ‘Computer Modem Lights’ it keeps flickering once in a while and not fully but partially.
Lets say 20 by 10 (20 Column and 10 rows) set of lights, and all the lights are ON, and it flickers every few sec randomly. Few of them is more bright and few are dull (but flickering) and few of them are completely OFF.
Iam not sure if that make sense or not, if not please let me know i’ll make a drawing in step by step.
Thanks
sanj.