I tried controlling the LEGO SPIKE Prime using C language to evaluate its usability, processing speed, and potential for robot competitions. To test its performance, I implemented a Line Follower algorithm.
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Two Key Experiments
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1.Comparing the Line Follower performance using SPIKE App’s Word Blocks vs. C language
2.Maximizing Line Follower speed using C language with PD control
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1. Comparing SPIKE App Word Blocks vs. C Language
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I created a Line Follower program using both SPIKE App (Word Blocks) and C language, keeping the control logic the same.
- The C language version provided more stable driving performance compared to the SPIKE App.
- Watch the comparison video here: [Video Link]
- Below is the source code for both versions:
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2. Improving Line Follower Speed with C
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I tested how much I could increase the Line Follower speed using C language.
- Watch the actual test video: [Video Link]
- Without extensive tuning, I achieved speeds of approximately 820 deg/s.
- Adding a second color sensor or optimizing the robot assembly could further improve stability.
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Development Environment & Resources
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For C programming, I used this development environment: [spike-rt]
If you want to try it, there is a beginner-friendly tutorial available, including a trial (as of February 2025).
🔹 Download the program used in this article: [Download Link]
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To see more
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If you want to see a demonstration of SPIKE-RT in action, please refer to the following.
- Testing LEGO SPIKE Prime with C: Line Follower Speed & Stability
- Comparing LEGO SPIKE Prime Programming : Which is Best for Robotics Competitions? - 1
- Comparing LEGO SPIKE Prime Programming : Which is Best for Robotics Competitions? - 2 (Coming Soon)
Future Tests & Robot Competition Applications
I plan to conduct further tests on the usefulness of C language for robot competitions and will share my findings in upcoming articles. Stay tuned!
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