Pet Car Alarm for TI-Nspire CX

Pets suffer when left unattended in a car on a sunny day. Understand the science behind the greenhouse effect. Use math, computer programming and engineering to design a pet-smart alarm system.

Author: Texas Instruments Inc.

Topic:  Biology  Computer Science  Physics  STEM




Save a Pet

Design a car alarm system that protects pets from overheating.

click here for a larger view of the project

Students create a system to measure temperature and the presence of a magnetic field to trigger an alarm.

Greenhouse Effect

Homeostasis of mammals

Temperature scale conversion

Multiple inputs / outputs

Feedback and Control system

Coding concepts:


  Conditional Statements



Demonstration video  link


Project Resources

Download Teacher Document PDF  link  Word Doc  link 

Download Student Document PDF  link  Word Doc link

Download Zipped file of TI-Nspire TNS program files for all project challenges link

Download TI-Nspire TNS program file for the final challenge link



Display Image of sun rays striking automobile link

Display Table of internal auto temperatures vs. time link

Display Image of example Pet Car Alarm Project  link

Display Image of TI-Innovator Hub set-up diagram for Pet Car Alarm Project link


Learn to do the project yourself

Download Learn to do the project PDF link



Setting up

Update your TI-Nspire CX family handheld, TI-Nspire computer software and TI-Innovator sketch link

TI-Innovator White LED PDF link

Download a step-by-step guide to updating your TI-Innovator Hub  PDF link 


Own project equipment

Here is information for budget requests and grant proposals.

Download a PDF listing the equipment needs for each TI-Innovator Hub Project  link

 See a list of TI Instructional Product Dealers and request a quote  link


See other projects at

Contact with questions or comments.


Publisher specific license