Introduction - If you have any usage issues, please Google them yourself
C51-based single-chip IO mouth Examples of applications procedures, 4 × 4 determinant keys can be used as a simple system input use
Packet : 933174684by4keyboardc51.rar filelist
4by4keyboard c51\MultipleKey7Led
4by4keyboard c51\MultipleKey7Led.hex
4by4keyboard c51\MultipleKey7Led.lnp
4by4keyboard c51\MultipleKey7Led.lst
4by4keyboard c51\MultipleKey7Led.M51
4by4keyboard c51\MultipleKey7Led.obj
4by4keyboard c51\MultipleKey7Led.Opt
4by4keyboard c51\MultipleKey7Led.plg
4by4keyboard c51\MultipleKey7Led.Uv2
4by4keyboard c51\MultipleKey7Led01
4by4keyboard c51\MultipleKey7Led01.hex
4by4keyboard c51\MultipleKey7Led01.lnp
4by4keyboard c51\MultipleKey7Led01.lst
4by4keyboard c51\MultipleKey7Led01.M51
4by4keyboard c51\MultipleKey7Led01.obj
4by4keyboard c51\MultipleKey7Led01.Opt
4by4keyboard c51\MultipleKey7Led01.plg
4by4keyboard c51\MultipleKey7Led01.Uv2
4by4keyboard c51