Schematics must show all the details of your circuit. If any information
is missing the design can not be produced.

Rules for drawing circuit diagrams

0. Rule 0 is the most important. Circuit diagrams must be created before
   you attempt to build your design, and you must have an up-to-date copy
   with you during assembly, debugging, and testing. A 10% grade reduction
   penalty will be assessed for each violation of this rule.

1. Draw with a  pencil unless you use a CAD program.

2. Neatness is important. I must be able to read the details.

3. Represent each component with a simple symbol (e.g., a rectangle for an
   IC) that includes the pins and pin numbers.

4. Label each connection (wire) with a unique name.

5. Use a dot at the intersection of connecting wires.

6. Do NOT draw a loop or bridge when unconnected wires cross.

7. Label each component with a unique name (e.g. U37, C14, R23). The first
   letter of the name should indicate the type of component (e.g., R for
   resistor, C for capacitor, L for inductor, and so on). The ICs are
   often specified by U, but this is not a hard rule.

8. Place above each component (or group of components) a functional
   description (e.g., above a group of decoder ICs would be Address
   Decoders, above a group of 7-segment LEDs would be Output Display).

9. Label each component with it's part number (e.g., 74LS38, MC68HC11).
   For resistors and capacitors, simply specify their value and the units.

10. Put pin LABELS on the inside of each chip block but put pin NUMBERS
on the outside of the chip blocks.

11. Include your name and the date.