i made a 10 x 5 led matrix display using pic18f2550 and 10 bc548 transistor for 10 columns (negative supply) and 5 bc548 and 5 bc557 coupling for 5 rows(positive supply). positive supply is from a lm317 ic its the basic hardware
pic is configured as 8 bit internal oscillator without prescaler for better row scanning
i made into each led is x y addressable and working fine i can liight any led using x and y positions of the matrix
i can show characters or any thing but the problem is with scrolling messages
am using mplapbs c18 compiler so please give me the correct code using x and y positions from left to right or right to left
pic is configured as 8 bit internal oscillator without prescaler for better row scanning
i made into each led is x y addressable and working fine i can liight any led using x and y positions of the matrix
i can show characters or any thing but the problem is with scrolling messages
am using mplapbs c18 compiler so please give me the correct code using x and y positions from left to right or right to left