Schematic annotation in PCB Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to assign unique designators to components automatically.

PCB Design

annotation_tool.assign_designators([1])

Drag options to blanks, or click blank then click option'

Apcb_layout

Bnetlist

Cschematic_view

Dcomponents_list

Attempts:

3 left

💡 Hint

Common Mistakes

Using netlist instead of components list

Confusing PCB layout with schematic components

The components_list contains all components that need unique designators during annotation.

2fill in blank

medium

Complete the code to start annotation with a specific prefix for designators.

PCB Design

annotation_tool.start_annotation(prefix=[1])

Drag options to blanks, or click blank then click option'

A'U'

B'R'

C'C'

D'D'

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'R' which is for resistors

Using 'C' which is for capacitors

The prefix 'U' is commonly used for ICs or integrated circuits in schematic annotation.

3fill in blank

hard

Fix the error in the annotation command to avoid duplicate designators.

PCB Design

annotation_tool.annotate_components(allow_duplicates=[1])

Drag options to blanks, or click blank then click option'

AFalse

BTrue

CNone

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Setting allow_duplicates to True

Using None which is invalid here

Setting allow_duplicates to False prevents assigning the same designator to multiple components.

4fill in blank

hard

Fill both blanks to filter components and assign designators starting from 100.

PCB Design

filtered = [comp for comp in components if comp.type [1] 'Resistor']
annotation_tool.assign_designators(filtered, start=[2])

Drag options to blanks, or click blank then click option'

A==

B!=

C100

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using != which excludes resistors

Starting from 1 instead of 100

The filter uses == to select resistors only, and designators start from 100.

5fill in blank

hard

Fill both blanks to create a dictionary of designators mapped to component values for capacitors only.

PCB Design

cap_values = { comp.designator: comp.value [1] comp in components if comp.type [2] 'Capacitor'}

Drag options to blanks, or click blank then click option'

A{

Bfor

C==

D}

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' instead of '=='

Missing curly braces for dictionary comprehension

The dictionary comprehension starts with {, uses for to iterate, and filters with == for capacitors.