Lab1 page1 BXST-DIGI-252 Lab 1 Notes ©Paul Godin Updated December 2014

Lab1 page2 Vulcan Logic Trainer Switch bank Connections for Switches Breadboard or Experimenter’s Board Jack for power adapter Clock postProbe post Probe LED Power Switch Clock LED

Lab1 page3 Vulcan Logic Trainer Bar LEDs Connections for Bar LEDs Variable Resistors for Clock +5V Ground Horizontal bus (red & blue) Vertical buses (red & blue)

Lab1 page4 Breadboard Internal Wiring

Lab1 page5 Resource information: Layout of the breadboard

Lab1 page6 +5 Volt = Red Ground = Black Clock Output = Green Probe = Yellow Wire Configuration ADD THESE WIRES

Proper Wiring “My circuit doesn’t work and I can’t find the error.” “Can you help me? Please?” Lab1 page7

Features of a properly-wired circuit RED reserved for Vcc connections BLACK reserved for GND Connection Wires routed around the IC Wires the proper length Wires routed along horizontal and vertical plane Little or no exposed conductor IC is fully visible and accessible Lab1 page8

Can you find the errors in this circuit? Lab1 page9

Exposed conductors Short Circuit Bent Contact Wires routed over component Wrong color (shouldn’t be black or red) Wire too long Wrong color (should be black) Wires not on vertical or horizontal plane Lab1 page10

Wire Tips ◊Use properly-adjusted wire strippers only (not cutters or teeth). Stripping must not affect the conductor in any way (scrapes, cuts or nicks). ◊The strip length should the height of the breadboard minus approximately 2 mm. ◊If wires are too short, there may be poor electrical contact. Frustrating error as it appears connected. ◊If the wires are too long there is risk of a short circuit. END Lab1 page11