7 Segment LED Display

7 Segment LED Display

7 Segment LED Display has a common anode.  It have a forward voltage of 3VDC and a max forward current of 20mA. This is the way the display works. It’s multiplexed, so you select the digit by setting its pin (we’ll get into pins later) High, and you select the section by setting its pin Low. You display multiple digits at once by rapidly cycling through them. Uses timer, counter, watch, stopwatch, token display machine ETC.