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    By the way, I want to design a digital balance with set option, on the other hand I don't have any idea about sensors for wieght. can you achieve me to guide my goal?
  • chip card
    I developing time control device for entertaiment machine, which have to read and write chip cards with internal reader. I have standard conector fow chip cards with 8 contatcs (ISO). Chip cards would...
  • MMC card
    I am trying to use a MMC with AT89C51RD2, but my SPI port is already occuped. Does anyone knows a library that do this without using SPI ports. Regards Gustavo
  • Smart Cards Question
    Hi, when working with smart cards and micro controllers you have five signals interfacing them: Clock, Reset, I/O line, Vcc and Ground. Clock and Reset...are they supposed to be quasi-bidirectional ...
  • CF card programming
    Hi all, I want to programm compact flash memory card. that is want to read and write data from CF card. can any one give some information regarding how to start this.