Calculate CRC-8
Calculate CRC-8 from text and copy the 2-character hexadecimal result. This variant uses the common CRC-8 profile with polynomial 0x07.
CRC-8 is small, so it catches fewer error patterns than wider CRCs. Use it only when the receiving format or device expects an 8-bit CRC.
Keep leading zeroes
The calculator pads CRC-8 output to 2 hex characters. A result such as 04 is different from 4 when a protocol expects fixed-width fields.