At first I thought I had it all figured out by using a laserpointer to trigger my lap timer and lap counter software.
BUT… turns out that my Rally car is “loosing paint” and the laser shines right through the body and triggers the software to count the car 2-3 times each time it comes by.
I also wanted to keep setup time to a very minimum and decided to built a mechanical contact that would simply trigger when the Continue Reading »
Lap Timer Software and Laser triggered Photo Transistor Timing Gate
“Going around in circles is a lot more fun when you keep time!”
Test setup using a Carerra Slotcar Track
Originally I considered programming my own lap timer. I researched several Javascript options and stumbled more or less by accident into several slotcar forums and sites. I grew up with a Carrera 140 Servo Slotcar track and just recently acquired a Carerra Go track for some family fun. Turns out the slotcar boys are really into precise timing and “why re-invent the wheel” when a genius like Gregory Braun over at hoslotcarracing.com already build a great piece of software.
In a nutshell the setup uses a standard Photo transistor connected to a Continue Reading »
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