SunFounder GalaxyRVR Kit for Arduino, Release 1.0
• Why do you think we prioritized the obstacle avoidance module before the ultrasonic sensor in our obstacle
avoidance system, and vice versa in the following system?
• How would the outcome differ if we were to swap the order in which these modules are checked in the code?
Challenges and problems are an integral part of the STEAM learning process, offering valuable opportunities for
improvement. Don’t shy away from troubleshooting - it’s a powerful learning tool in itself!
As you continue on your journey, know that every obstacle you overcome brings you one step closer to mastering your
STEAM skills. Keep going and enjoy the journey!
3.9 Lesson 9: Lighting the Way with RGB LED Strips
In our journey so far, we’ve transformed our Mars Rover into a smart explorer, capable of skilfully manoeuvring around
obstacles. It’s become quite adept at navigating the Mars-like terrains we’ve set up for it.
But, what if we could add a bit of flair to its practicality? Let’s give our Rover the ability to express itself through a
spectacle of colors and light. We’re talking about incorporating RGB LED strips - a cool feature that would allow our
Rover to illuminate its path, even in the darkest conditions.
Picture this - the Rover leaves a trail of color-coded signals, making it easier for us to understand its moves. A green
glow when it’s on the go, a stern red when it halts, or a flashy yellow during those swift turns. It could even light up in
an array of colors just for the sheer fun of it!
Our goal in this lesson is to understand the principles of RGB LED strips, learn to control their color and brightness,
and then synchronize this with the Rover’s movements. By the end, our Mars Rover will be more than a machine. It’ll
be a luminous, color-changing entity, leading the way in the vast Martian landscape!
Note: If you are learning this course after fully assembling the GalaxyRVR, you need to move this switch to the right
before uploading the code.
70 Chapter 3. Course Mode
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