I have 8x44 led matrix has 11pcs HCF4094BE. I tried lots of things and code but I can't run. I want to make scrolling text. I connected like this http://senster.com/blog/wp-content/uploads/2009/02/expanding_outputs.pdf
I tried some codes (I changed according to me) . I looked shift register. LEDs light up in mixed form, irregular.
Sory for my English.
Thank you in advance
every parts 4x8 leds.
Also if add to code
and I connected cathode,
all leds on. so leds works. :)
Have you tried with just one HCF4094BE and a 4x8 matrix? Start small and work your way up.
What is the orange stuff on some pins? Is that hair that's bridging pins?
Thanks for Reply
I worked 8 PCS led with 4094. Orange Stuff are rust :)
but i worked all leds. I gave the signal to only the first 4 columns.
AND all leds worked.
Orange Stuff are rust
I wouldn't be smiling about it, that's bad.
I have 28 pcs same panels. Some of them are very clean. Don't worry I worked on a clean one. Actually I removed from the old city bus.
in the meantime I have tried solutions and codes in the following links
but lights It moving absurdly. Also I don't fully understand shift register('cos my english is not good) How I can create characters using shift register. Of course this is next job. First I should succeed light right led I want . I should choose any rows and columns.