This is my initial Flow Chart for how I want the meter to function. I'm still working out a number of details:

• Contact selection for different strips
  
  • Working on a list of strip pin-outs (really "contact-outs")
• Type of configuration for each type of strip
  • I'll cover details of this in my next post.
• Pin selections for different strips
  • Since strips have different contact orientations and different arrangements of electrodes used for glucose measurement (I will cover this in greater detail in a future post - here or on my blog)
    • Some use 1 reference and 1 active
    • Others use 1 reference, 1 active and 1 counter
    • (there may be others, but I haven't seen them yet)
  • This means some strips may need to utilize additional Op-Amps and ADC's to be able to read the strip
  • Many strips also include additional sense electrodes to detect when blood first contacts the strip.
  Below is my initial Flow Chart:

Continuing work on software development (at present this is my biggest challenge, this is my first attempt at using PIC microcontrollers - which require a lot of digging through details in datasheets - in comparison the hardware design is fairly easy) as well as deconstructing commercial strips to determine layouts of contacts and configuration of test strips.