Speed LCD DISPLAY

hi,

i new arduino, received arduino starter kit.

i planning create speed lcd display display speed of rc cars on 1/24 circuit ( mini z if of knows).

i have 3 meters straight line, thinking best put 2 lights detectors in center, 1 meter between each of them.

i don't know if provided in arduino starter kit helps.

if of give me hint on how program it.

thanks,

david

there more 1 "arduino starter kit" out there, 1 have? or rather, if can not see or read content list if have 2 lighsensors, problem first learn (google, wikipedia) lightsensors have (or order 2 of hobby/arduino shops)

assuming not problem, you're doing fine: keep reading lightsensor 1 until blocked, store millis() value in variable , start polling 2nd sensor until blocks, subtract noted millis() value current , print value ( distance/milisdiff speed)

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