Re: help needed to run a 5x7 led display from a mcu


How about a part number? This sounds suspiciously like the dinosaur-old
HDSP displays from the 70s. They suck an enormous amount of current and
require constant baby-sitting from the MCU.

http://www.dfpresource.org/hdsp2000_133.jpg

Do they look like that?

The product im trying to make is scrolling marquee as part of my
college course this is the LED display im wanting to use
https://www.lc-led.com/View/itemNumber/183. obviously more than one
will be connected, but one step at a time.

Im just struggling to get my head around the strobing, my confusion
comes from. Lets say i want the top right led lit up. I put a 1 at the
last column and the rows will strobe through, whats stopping this
strobing effect lighting up the rest of the LEDs below that top right
one.

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