• weight card
    i have the load cell of 100kg i have a ADC NAU7802. i have to calculate weight through this ADC. can anyone have idea how to convert ADC value to weight.
  • 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
  • Interfacing MMC card with P89C669
    Hi everyone, Is there anybody who has experience with hardware interfacing an MMC card with the Philips P89C669 controller, who has no SPI bus? Are there any C-code examples for accessing such a card...
  • 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 ...