# Hot Wheels Electronic Finish Line with Arduino and Sensors
**URL:** https://discourse.processing.org/t/hot-wheels-electronic-finish-line-with-arduino-and-sensors/21787
**Category:** Gallery
**Created:** [June 11, 2020, 7:16pm UTC](https://discourse.processing.org/t/hot-wheels-electronic-finish-line-with-arduino-and-sensors/21787 "2020-06-11T19:16:13Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@tomjuggler](https://discourse.processing.org/u/tomjuggler)
#### Post date: [June 11, 2020, 7:16pm UTC](https://discourse.processing.org/t/hot-wheels-electronic-finish-line-with-arduino-and-sensors/21787/1 "2020-06-11T19:16:13Z")
I made a Hot Wheels car finish line for my son. Naturally the Arduino controlled sensors needed to be connected to my Laptop running a Processing sketch. “Winner, Lane Two!”
All code and circuit is included in the write-up here:
> **[Hot Wheels Electronic Finish Line - with Arduino and Light Sensors - Circus...](https://www.circusscientist.com/hot-wheels-electronic-finish-line-with-arduino-and-light-sensors/)**
>
> My son saw loves his Hot Wheels. We have tracks, multiple cars, and many addons like the Shark Beach Battle (his favorite) but many of these items are really costly. The latest Hot Wheels high tech item is called Hot Wheels ID, which is an Augmented...
I am going to be developing this into a wireless version, using Processing for Android. Inspired by “Hot Wheels ID”, the new augmented reality Hot Wheels product.
Let me know what you think!
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### Author:  [@BillV](https://discourse.processing.org/u/BillV)
#### Post date: [August 24, 2021, 8:11pm UTC](https://discourse.processing.org/t/hot-wheels-electronic-finish-line-with-arduino-and-sensors/21787/2 "2021-08-24T20:11:57Z")
Just an FYI - Suggest using photo transistors/diodes for your sensors instead of photo resistors. Photo resistors typically have a slow reaction time which is not good when measuring times to the millisecond or less.