Algorithms! Modulus 43 algorithm.

The most difficult part of barcodes. Try understanding them and if you need help feel free to ask one of our group members! Have fun! Try solving for the different barcodes around you that use Mod43!

The check digit for Code 39 can be calculated using Modulus 43. Code 39 barcodes can come with numbers and letters, and using the table below we can obtain a number which represents the symbol reflected on the barcode. By adding all the values up and dividing by 43, the remainder is the check digit.