pls can u tell me the hardware how can i use as i connected the rows directly to portd and cols through 595 and uln2803a when i give power my 877a getting heat and not displaying anythi ...
I was trying to build moving messages display as i search in the forums i saw that u made i try to make the same as u did
as is used ur code and PIC16F877A For rows i ...
Please can u help me to build the same as u did LED moving message 8x80 i am begineer in embeded new to ccs c i am trying but till now no results i did in 74hc154 8x32 now i want ...
i build the circuit using pic16f877A and 6 of 5x7 30x7 for cols i am connection through porta to 74hc595 and uln2803a and for rows connecting from portb b