1. Physics 4341 Some lessons from Module 1. A control usually needs a default –It is not the equivalent to a constant, unless you make “current value default” after setting it. How about the low current limit? Didn’t those wiggles bother you when you were measuring small currents? –The range counts! Default is 0 to +10, so 10V/4096=2.5 mV!

2. Physics 4342 Notes on Module 2 Two VI’s, due before next class. –(Note that you can combine them into one, using a listbox or ring ) –TTL output logic levels: 4.35 V on. –Input: open means on, closed (shorted to ground) is off. Don’t need all the colors for the wires. (But distinguish ground). Use ~300  current-limiting resistors. Note that same 8 lines are output (part I) and input (part II). –You can set up your breadboard to do both You have to deal with binary numbers (table II is a worksheet) –Note the Format & Precision menu item for a numeric constant, which can be used to set binary (or octal or hexadecimal). Note the requirement: your VI should turn the LED’s off when it stops. (think about how to do it.)

3. Physics 4343 The AT-E board

4. Physics 4344 Seven segment wiring (common cathode) A14 B13 C8 D7 E6 F1 G2 dp9 Cath4,12

5. Physics 4345 Notes on mapping How do you convert the numbers 1-9 to a different sequence? In most languages, two choices: –case or if-elseif (adds code, complexity) –Table lookup (adds to memory) How does this map into G? See the Demo VI.Demo VI