I can match sensors and outputs to the physical quantities and actions required by a mission.
POE Unit 3 • Lesson 3.4
Inputs, Outputs, and Sensors
Focus question: How do engineers select sensors and outputs that match the information and action a mission requires?
Mission Briefing
Today’s Plan
A focused sequence that advances the rover and VEX ground-support mission.
Opening promptConcept modelGuided practiceInteractive applicationEvidence checkExit ticket
Lesson Targets
What You Will Be Able to Do
I/O selection table
Every device is classified correctly and connected to a meaningful mission variable or action.
Activity Flow
How the Lesson Moves
Each step builds the control-systems reasoning needed for today’s deliverable.
1. Identify variables
List what the system must detect, measure, or change.
2. Select devices
Match each variable to a suitable sensor or output.
3. Check interfaces
Confirm signal type, range, and mounting needs.
Lesson Interactive
I/O selection table Practice
Apply the lesson concept to an aerospace rover or VEX ground-support scenario. Use the feedback to correct reasoning before documenting the main deliverable.
Mission Variables
RangeStation distance
HueMarker color
ContactLimit reached
AngleRover heading
Match Each Sensor
| Device | Best Measurement |
|---|---|
| Distance sensor | |
| Optical sensor | |
| Bumper switch | |
| Inertial/gyro sensor |
Match the physical quantity to the sensing principle rather than choosing by device name alone.
Today’s Work
Main Deliverable
Mission I/O Selection Table
Create one focused engineering artifact that demonstrates today’s learning.
- Identify at least three inputs and two outputs for the rover mission.
- For each device, state what it measures or changes and why its range is appropriate.
Exit Ticket
Mission Debrief
State one control-systems or automation idea from today in your own words.
Name one measurement, calculation, trace, or test result that supports your design decision.
Identify one interface, logic, safety, or reliability risk to carry into the next lesson.
Resources
Lesson Resources
Lesson 3.4 PowerPoint
Use the presentation to review the lesson concepts, examples, and activity directions.
Principles of Engineering
Return to the POE course hub for units, resources, certifications, and course information.
Rover Mission + VEX Ground Support System
Use the integrated mission context when connecting logic, sensing, actuation, testing, and design-review evidence.