Persistence of Vision

Question

Draw out a state machine that will cycle through displaying different digit on the multiple digit seven segments display. How quickly should that state machine cycle through the digits so that the digits don't appear to blink

shabaz · Answer

Another option is to use a driver that won't flicker, i.e. don't multiplex. PCA9634 PCA9634 is really nice for this, one behind each 7-segment digit. I like it for really high quality displays that don't exhibit any flicker even when you move your eyes or head quickly!

mcb1 · Answer

Seems to be a wide variance according to this.

Persistence of Vision

Top Replies