Gray Code for decimal Digits
Gray Code 0 = % 0000 1 = % 0001 2 = % 0011 3 = % 0010 4 = % 0110 5 = % 1110 6 = % 1010 7 = % 1011 8 = % 1001 9 = % 1000
A Gray code changes by only 1 bit for adjacent values. This is also called a ‘thumbwheel’ code because a thumbwheel for choosing a decimal digit can only change to an adjacent value (4 to 5 to 6, etc) with each click of the thumbwheel. This allows the binary output of the thumbwheel to only change one bit at a time; this can help reduce circuit complexity and also reduce signal noise.