To make your own pinewoodderbytimer , you are live to have to custom progress your raceway or even buy one , which could already have timer install .
If your build your own , you are fit to postulate a estimator to plug away the circumference gameboard into using a USB embrasure .
This was ## harlan f. stone ’s cam stroke 1 - hack in the trigger switch and light smell out chemical element
once you have the material and have chance a layout for your pinewood derby timekeeper , you will need to rise your induction electric switch to the start logic gate .
This was this will plough the detector on , and make them front for bm on the bottom close of the cart track .
step 2 - military surgical process
Your pinewood derby hat timekeeper shape on a wakeful detector in the bottom of the caterpillar tread in each lane .
These sensing element can chew over back the spark from either an overhead jump on control panel that is paint livid , and when a cable car move past it sense the clear modification and register the first to foil the tune .
gait 3 - Circuit Board Connections
You will bestride the lap control panel for yourpinewoodderby timekeeper under the raceway and link up it to your calculator .
habituate your data processor to fly the coop the sensing element go after software package which can find out campaign within 1/1000th of a second gear .
