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Topic: What are the 0xf3 type of commands in arduino programs (Read 557 times) previous topic - next topic

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

#1
Jul 07, 2015, 12:18 am Last Edit: Jul 07, 2015, 12:18 am by 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
Hackscribble.  Writing about making things
hackscribble@outlook.com

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


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