Develop Efficient Arduino-Based Lap Timer

The goal is to turn an Arduino into reliable timing equipment for track-day cars. I already know the core requirement: precise lap timing triggered by track-side sensors, with each lap time shown live on an attached LCD screen so drivers can see their results as they pass the pit wall... (Budget: ₹1500 - ₹12500 INR, Jobs: Arduino, C Programming, C++ Programming, Electronics, Embedded Systems, Hardware Security Module, Microcontroller, Prototyping, Robotics, Sensor Integration)