Better NFC component


made most better(complete) NFC component something like this

can read uid
encode data
more easy to read and write
read hex info
ect ect


you could write your own extension and create some blocks yourself…

more information about how to create an extension see the App Inventor Extensions document
however that will be more advanced and will require some Java skills…



Some of extension developers like @Andres_Cotes might be able to develop this