I posted this question on the wrong board "General Chat"...what i really wanted to do was post it on here here....
I want to build a pinewood derby calculation device to measure how fast the car is going? I want to start the clock when the car takes off, and stop the clock when the car reaches the end, and do the d/t = speed. What electronic circuit can I use to do this? 555 timer? 8 bit micro? any help would be appreciated.
I want to build a pinewood derby calculation device to measure how fast the car is going? I want to start the clock when the car takes off, and stop the clock when the car reaches the end, and do the d/t = speed. What electronic circuit can I use to do this? 555 timer? 8 bit micro? any help would be appreciated.