Mini4WD Lap Timer

Keep track of Mini4WD and slot cars lap times using your phone camera.
Easy to use:✅ Place the phone alongside the track, with the red line on the camera preview facing on a track lane.✅ Press calibrate: the app will calibrate in a couple seconds.✅ Press start and put your Mini4WD in the track.✅ The app will record your lap times as the Mini4WD passes under the red line.❌ Do not cast shadows on the track or measuring will be wrong.

Can also be used with slot cars or for other purposes.You can export the lap list as CSV (for import in Excel) or send it directly via email.

Category : Tools

Reviews (23)

Dan. P. Oct 30, 2021

Constantly registers a shadow as a lap time every time.

ken. f. Feb 7, 2016

The app installed fine but it did not work very good. It worked once but after that every time I calibrated for a car it would ask to be recalibrated. Perhaps it doesn't like H.O scale cars or maybe it doesn't work well on my phone.

Bil. E. Feb 26, 2018

You should also rename this as a HO SLOT car lap timer as well...works perfect for that set face down over the lane...

Jam. G. Sep 7, 2015

Works great for quadcopter racing! I wish there was an option to change to front camera

SuF. Feb 7, 2015

Can you created tamiya engine rpm checker

Dra. T. Oct 27, 2017

that's exactly what I need

han. k. Nov 30, 2014

any app to calc the rpm of a motor...?

Dav. J. Aug 23, 2014

the timer will not start or stop with the camera, was fine before the latest update.. Update! now it works again thanks guys not sure what you did but working again asus TF101

A. G. u. Sep 3, 2011

5 stars for update..Still a few more ideas like sound for every lap and a sound for best lap..and setup to delay sensor readings to avoid false laps;)

faz. r. Dec 2, 2013

Great app. But can be improved to make the stopwatch accurate to milisecond, 0.001 sec accuracy. Now only 0.1sec.

A. G. u. Mar 16, 2012

Great concept but gets stuck at calibration screen.

A. G. u. Sep 21, 2011

Great idea and concept. Just can not get it to calibrate on my Droid.

A. G. u. May 16, 2012

Thank you so much for a great free app! This app proves how flexible Android is for use in almost any application.

Ash. W. Dec 29, 2013

Ease of use n great mirror to the original lap timer

A. G. u. Nov 23, 2011

Briliant idea, please put sound when the car passes

Zek. K. Jul 4, 2014

Words failed me. Simply cool...

A. G. u. Oct 10, 2011

Can you add another lane? This is a great app. Thanks.

Azm. N. Mar 1, 2014

Good application..

era. f. Mar 31, 2014

The best!!!+++!!!

Ayu. R. Apr 3, 2014

Sometimes it can't detect the car.

A. G. u. Feb 13, 2011

Works well. needs best lap and lap counter. also bigger readout. Ability to count down laps or time also would be great.

A. G. u. Jan 29, 2011

Not working on motodroid awesome concept

Mar. W. R. Mar 28, 2015

Please install "giri - the rpm cheaker". This will help you to check the rpm of your motor