What are the 0xf3 type of commands in arduino programs

[cabyambo]

I've recently built an LED matrix that scrolls text and was looking to implement animations next. Upon looking up how to do this i found example codes with lines of code resembling 0x0, 0x8, 0x4f and so forth. What is that type of code and how would i implement it into an LED matrix code?

[Hackscribble]

Hi cabyambo

"0x" is a prefix to show that the number that follows is in hexadecimal notation - base 16.

0x4f or 0x4F is 79 in decimal.

0x0 and 0x8 are 0 and 8 respectively.

Regards

Ray

[marco_c]

0x simpily tells the compiler that the number following is a in hexadecimal format (base 16). for example 255 decimal is 0xff hex. You can also use 0b for binary (0xff is 0b11111111).

[cabyambo]

Thanks so much Ray and Marco!