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Juno Rover: intro to electronics and coding

by ExploreMaking, published

Juno Rover: intro to electronics and coding by ExploreMaking Aug 15, 2016

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Summary

Juno is fun, charismatic, and a great introduction to making! Unlike other robot projects, you don’t need to have any prior experience with electronics or 3D printing to make Juno.

Follow Juno’s step-by-step instructions and you will learn about basic wiring, LEDs, Servo motors, and introductory Arduino code. Juno’s 3D printable parts are well designed and optimised for success on any desktop 3D printer. If you’re looking for an in-depth 3D printing project, Juno is a great place to start!

Juno doesn’t stop - it’s adaptable and expandable.

Note: Hardware Kits can be ordered from ExploreMaking (contact for details)
3D Printed Parts plus Hardware Kits can be ordered from ExploreMaking (contactfor details)

How I Designed This

Juno is designed using SolidWorks. The design took many weeks of trial and error to make sure all of the pieces fit together well and printed reliably and efficiently. One of the most notable design features are the break-away support tabs that are used on the body. We left a 0.2mm gap between the support tabs and the body. We found that this distance was close enough to hold the overhang layer on the body in place, but also far enough away to reduce the layer adhesion so that it could be removed after printing. We drew an “X” on the break away tabs so that they are easily distinguishable as removable parts.

Standards

Overview and Background

Juno is an introductory Arduino-based rover for beginner makers. Once the original rover is made, different Arduino sensors and modules can expand its functions and allow students to decide their direction in their coding experiences.

Objectives
• Follow instructions to create a functional Juno.
• Demonstrate understanding of circuits to power LEDs and motors
• Describe the functions in the provided Arduino code
• Creative design to personalize each Juno

Lesson Plan and Activity

Students can work in groups of 2 or 3, promoting teamwork and reducing material costs. If teams used, we recommend having the students switch roles every 5 to 10 minutes so all students assemble, read, and document. One suggestion for homework is the documentation of their process.

We've worked hard to create a step by step assembly guide with suggestions for extensions. Please also see the resources section and Thing files.

You can extend the lessons by adapting the Juno with new Arduino modules. One suggestion is to create a class challenge that would use various sensors or outputs.

Materials Needed

  1. 3D printed parts (as uploaded here)
  2. Arduino Uno

  3. HC-06 Bluetooth module

  4. 2 servo motors

  5. LEDs: 2 red for back, 2 green for front
  6. jumper wires – 4 male/female; 10 male/male
  7. small breadboard

  8. switch

  9. 2 screws (12)

  10. battery holder for 4xAA batteries

  11. pin connectors

  12. shrink tube

  13. zip-ties
  14. double-sided tape
  15. Phillips screwdriver
  16. wire stripper
(optional)
  17. heat gun/hair dryer for shrink tape (optional)
  18. soldering
(optional)
  19. glue/super glue (optional)

Skills Learned

  • documentation
  • design
  • Arduino
  • circuitry

Duration of Lesson

This will take several class sessions. Depending on the number of students and their experience, assembly takes 2 hours and adding code is 1 hour. However, there are lots of opportunities to expand each section (e.g. do an introductory Arduino exercise before adding code) so it can be spread across several months and/or different types of classes.

Rubric and Assessment

Students could be assessed on the following:
• Documentation of the process
• Completed Juno that drives forwards, backwards, and turns.
• Designing a plan for adapting the Juno.

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Look great. Thanks

Great project, I'll try it!

Nice Work !!!, Thank you for sharing .I will make one.

Wow!!! Thanks for sharing this very nice project!!!

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