n2roy
Newbie level 3
I like to build a Scrolling text to Led Dot Matrix display.
In my project im using At89s52 , 4094 shift register, 74hc154 decoder. now my problem is, in my city 74hc154 is out of market, so i want to change some source code for scanning led Row directly by Microcontroller I/O pin, coz my Led dot matrix has 16 Row , and at89s52 has 32 I/O pin. Can someone help me ?? I attached my project..
here is mediafire link
https://www.mediafire.com/download.php?a5tpzmalmbbo4bc
In my project im using At89s52 , 4094 shift register, 74hc154 decoder. now my problem is, in my city 74hc154 is out of market, so i want to change some source code for scanning led Row directly by Microcontroller I/O pin, coz my Led dot matrix has 16 Row , and at89s52 has 32 I/O pin. Can someone help me ?? I attached my project..
here is mediafire link
https://www.mediafire.com/download.php?a5tpzmalmbbo4bc