Matrix keyboard

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(what to do with keyboard)
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Choose whatever microprocessor you like (among those we have), connect also some LED(s) using ideas from our [[First AVR experiment|previous seminar]] and:
Choose whatever microprocessor you like (among those we have), connect also some LED(s) using ideas from our [[First AVR experiment|previous seminar]] and:
-
*detect and indicate that one particular key is presses (plan your keyboard connection but at this moment you may just use one wire instead of the keyboard)
+
*detect and indicate that one particular key is pressed (plan your keyboard connection but at this moment you may just use one wire instead of the keyboard)
*connect the keyboard, detect that ANY key is pressed
*connect the keyboard, detect that ANY key is pressed
*detect WHICH key is pressed
*detect WHICH key is pressed

Verze z 1. 3. 2012, 07:39

Matrix keyboard looks like this:


It can be connected like this (you may use different microprocessor, this is just an example):

Soubor:IC-matrix keyb.png


Choose whatever microprocessor you like (among those we have), connect also some LED(s) using ideas from our previous seminar and:

  • detect and indicate that one particular key is pressed (plan your keyboard connection but at this moment you may just use one wire instead of the keyboard)
  • connect the keyboard, detect that ANY key is pressed
  • detect WHICH key is pressed
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