A program source code on the microcontroller, 44 keyboard, is a very good learning materials.

4x4键盘\4×4键盘.c
.......\4x4.plg
.......\4x4_Uv2.Bak
.......\4x4.lnp
.......\4x4.M51
.......\4x4.Uv2
.......\4x4_Opt.Bak
.......\4x4.hex
.......\Protouse\timer.PWI
.......\........\Last Loaded timer.DBK
.......\........\timer.DSN
.......\Protouse
.......\4x4.Opt
.......\4×4键盘.LST
.......\4×4键盘.OBJ
.......\4x4
.......\4x4.JPG
4x4键盘

• We are an exchange download platform that only provides communication channels. The downloaded content comes from the internet. Except for download issues, please Google on your own.
• The downloaded content is provided for members to upload. If it unintentionally infringes on your copyright, please contact us.
• Please use Winrar for decompression tools
• If download fail, Try it againg or Feedback to us.
• If downloaded content did not match the introduction, Feedback to us，Confirm and will be refund.
• Before downloading, you can inquire through the uploaded person information

Nothing．