PLC/Programmable chip suggestions

[Jonathan]

Second project, is a lap timer with a break beam.

Coincidence - I started making a lap counting system with coil on model car with a big coil lying across the track. Each car has different frequency through coil allowing band pass filters to be used on the track coil to distinguish between cars and increment a counter.

I'll look at getting proper circuit boards made.

Use CNC router to make them yourself!