Probably most piclisters knows the Morgan Logic Probe..
 is based on a PIC 12C508 and is able to sense
 hree-states: 0,1, and high-z...

 The probe is simply connected to one pin and,
 trough a 100k resistor, to another pin....

 How does it works? i.e. how the third state
 is interpreted?


--

   - *Alex* -

      (azummo@ita.flashnet.it)