Skip to main content

Budget-friendly devices for every classroom starting at $189

Harnessing Electricity to Communicate Students build a telegraph out of everyday objects to understand electrical energy and its role in communications. Then, they use a customized workbook to send and receive information in Morse code using their telegraph.

Harnessing Electricity to Communicate

Students build a telegraph out of everyday objects to understand electrical energy and its role in communications. Then, they use a customized workbook to send and receive information in Morse code using their telegraph.

Lesson Basics

Takes 1 to 2 weeks of classroom time

Costs approximately $3.00 USD per student, excluding tools and microcontroller

Aligns with middle school science, technology, engineering and math standards (STEM)

GET THE LESSON PLAN

What you'll need

Instructions


A step-by-step guide for building a telegraph. Includes patterns, a list of things you need, and detailed instructions.


DOWNLOAD THE PDF

Customized Excel Workbook


A customized Excel workbook that codes/encodes real-time communication data from student built telegraphs. Requires the Data Streamer add-in listed below.


DOWNLOAD THE WORKBOOK

Materials List


A spreadsheet with links to online resources to help you bring these projects to your classroom.


GO SHOPPING

Code for the Project


Pre-built code for your microcontroller to help you and your students visualize live data.


FLASH YOUR BOARD

Technical requirements

Data Streamer Add-in

Modernize your existing copy of Microsoft Excel with this free add-in to support real-time data streaming from your projects.

Read more

Microsoft Excel 2016 (Desktop)

Students and teachers are eligible for free Office 365 Education, which includes online Word, Excel, PowerPoint, and OneNote.

Read more

Arduino IDE

The free Integrated Development Environment enables you to write code that connects your project to an Arduino microcontroller.

Read more

Windows 10

This project requires a PC running Windows 10. To update your version of Windows, click here.

Read more
MORE LESSONS & ACTIVITIES

Hacking STEM library

Hacking STEM offers bite-sized, hands-on, teacher-tested projects and activities that use everyday materials to make STEM affordable, accessible, and fun for everyone. Browse our library for downloadable, printable materials.


EXPLORE THE LIBRARY

Need Help? Have Questions?