Koji Soon's Coding Projects
Hello, I am Koji! I enjoy building robots and using coding to solve real-world problems. Starting with block-based coding helped me understand how to control my robots and test new ideas. Learning robotics has strengthened my problem-solving and critical-thinking skills, because I have to break big challenges into smaller steps and troubleshoot when things don’t work as expected. It has also taught me patience and creativity, since designing, building, and programming robots often requires multiple experiments and improvements. Through robotics, I’m learning how software and hardware work together, which helps me better understand technology and how it can be used to make everyday tasks easier and more efficient.
Bumper Car
I learned how to use LEGO Technic parts to design and build functional mechanical systems. By applying coding concepts such as conditionals (if-else) and integrating various sensors, I programmed my creations to respond dynamically to their environment. One example was a bumper car that automatically reverses when its front touch sensor detects a collision—mimicking real-world applications of obstacle detection used in autonomous vehicles and robotic systems to enhance safety and navigation.
Sushi Belt
I enjoy going to the restaurant for sushi and decided to recreate an automated one. Using the lego technic parts and a colour sensor, I created a sushi belt that is activated to move only when it detects the colour green. This reduces unnecessary motion and saves energy.
Distance Sensor Coin Dispenser
Inspired by arcade coin dispensers, I applied the design principles and coding skills I learned to build a distance-activated coin dispenser. The dispenser uses two ultrasonic sensors that detect my hand in a specific sequence within a defined distance threshold. When both sensors are triggered in order, the mechanism opens to release coins. This project demonstrates how sensor integration and conditional logic can create automated systems, similar to those used in vending machines .
