Introduction:
Ronald J. Portugal invention of the modern breadboard in 1971 had a significant impact
on electrical design and prototyping. The holes of the breadboard connect electrically from being
plugged with ends of wires, resistors, capacitors, inductors, and motors leads. The breadboard
has columns a-j and rows 1-30. In this lab, the pattern of connected holes will be experimentally
deduced using the IOLab by applying ​intelligence​ and attempting enough holes so that the
pattern of connections is clear. The device will be a source of voltage as well as measurement
with the input A7 used in this lab. The objective of this lab is to form a map of all connections
across the breadboard and mimic complex circuits by "hopping" a connection using multiple
wires using wire leads on the breadboard. It can be expected that the positive and negative power
rails will not be connected on both sides.
Methods/Procedure​:
1. Determine all holes connected to the Left Positive Power Rail and then the Left Negative
Power Rail.
2. Determine all holes connected to the Right Positive Power Rail and then the Right
Negative Power Rail.
3. Determine the pattern of connections in the central region.
Hopping Exercise
1. Put a set of several wires in series to complete a circuit.
2. If three hops are successful, then a connection is made from 3.3V to A7 and the IOLab
will read 3.3V instead of about half its battery voltage ( disconnected).
3. Document Two 2-hop circuits connecting IOLab(3.3V) to IOLab(A7)
4. Document Two 3-hop circuits connecting IOLab(3.3V) to IOLab(A7)
5. Document Two 4-hop circuits connecting IOLab(3.3V) to IOLab(A7)
6. Run the IOLab be certain of circuit function and then document with a list of connections
and a figure.
7. Verify and document the full set of "hop" exercises