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BS2 and a keypad integration — Parallax Forums

BS2 and a keypad integration

CruxCrux Posts: 74
edited 2007-05-31 00:49 in BASIC Stamp
I am a newbie and not really familiar w/ matrix keypad. Ive tried browsing the nuts n volts column but still the tutorial wasnt enough. I need a schematic diagram and code,or lets say tutotrial, on BS2 and a keypad(3x4 Matrix) integrated together.I hope you guys can help me out w/ this one.

Comments

  • PJAllenPJAllen Banned Posts: 5,065
    edited 2007-05-30 23:33
    You didn't cite the N&V article that you read.

    N&V #22·spells out everything (schematic, samples, etc.) -- http://www.parallax.com/dl/docs/cols/nv/vol1/col/nv22.pdf
  • DosManDanDosManDan Posts: 179
    edited 2007-05-31 00:49
    I made a small keypad reader circuit using the EDE1144 chip and interfaced that with the BS2. Works like a charm and takes the processing load off the BS2.

    If you are an SX chip fan, you could easily program this functionality and save yourself the cost of the EDE1144 chip. Of course I bought the EDE1144 before I learned how to use the SX, otherwise I would have just done it myself.

    Dan
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