I would like to have an array of eight 7- and 8-segment LED numerical displays on my Adafruit Trinket. I know that there are some prebuilt arrays of 4 LED's. So 2 in array would do just fine. However, my Adafruit Trinket doesn't have enough ports for that. I have heard something about connecting it to a small piece of controlling hardware that makes me able to have way less ports in need. What is the appropriate way of connecting a lot of those LED's on only a few ports on a micro controller?
My ideal output would be as follow: 88 88:88:88 or maybe 88 88.88.88 So ideally there would be a small space between the first group of 2 digits and the rest. Basically, the last 6 digits will represent a time in minutes, seconds and hundreds of seconds.