A Johnson Counter, or ring counter, is very easy to use. It has 9 (or 10, doesn't matter) output legs for numbers. Each time it receives an impulse, the leg that is high changes. It has a reset leg, which resets the counter to the first leg when it goes high. The trick is to connect the 7th to the reset leg, so that when the 7th goes high, the counter resets to 0 (which is number 1, it is simply called 0). Now you simply connect all the legs to some LEDs, or perhaps a display.
Do you want some info on how to make an oscillator?
You can chat with me on erik.rambowjo (at) gmail(dot)com (live messenger)
|
|
Bookmarks