[Mr Muntarg]

While researching this project i came across this forum and thought this may be of interest to people. Hopefully some far more knowledgeable people may be able to give me some advice along the way

I run a semi temporary 2 lane Scalextric sport track  with an arc one for timing along with a basic base and 2 power supplies. My plan is to build the following 


Single power base 
Single power supply
Photo-sensors for timing 
Blu tooth connection to PC
Plug in booster cables
Start lights
Call button/buttons

The plan is a base plate glued or screwed to the under side of a half straight , with a box on the side for all the electronics . An overhead gantry will house the IR emitter along with 16 addressable RGB LEDS. I'll be going along the well trodden route on an Arduino Uno for the PC connection along with a relay box to turn power on and off to  the circuit. This is largely unnecessary, but i like techy things and the relay boxs aren't expensive.  Ill be sticking with the sport controller 3.5mm jack plugs as there small and readily available. 

The main parts will be 3d printed for now. But i do run a CNC machine shop so may be from aluminium eventually. Picture below is first model files that are currently on the printer. They will no doubt get a complete re-design as i compact the electric down and hopefully make them a bit more visually appealing