Simple encoder. Case sensitive. Uses 1 costume. A little slow. Drag it to your backpack and please give credit. To use, make sure you have at least two costumes. "ABCDEFGHIJKLMNOPQRSTUVWXYZ" and some other one, such as "null". They can be any number.
*still cutting down on variables V1.7 - Added a couple characters V1.6 - Doubled encoder speed V1.5 - Streamlined 2 custom blocks V1.4 - 3 custom blocks V1.3 - Decoder V1.2 - Encoder V1.1 - Case sensor V1.0 - Started project