https://github.com/sparkfun/speed_trap

Use a LIDAR to display the speed of people walking by
https://github.com/sparkfun/speed_trap

lidar sparkfun sparkfun-projects

Last synced: 8 months ago
JSON representation

Use a LIDAR to display the speed of people walking by

• Host: GitHub
• URL: https://github.com/sparkfun/speed_trap
• Owner: sparkfun
• Created: 2015-06-17T19:13:49.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2022-07-02T19:31:22.000Z (almost 4 years ago)
• Last Synced: 2025-07-17T12:15:54.356Z (11 months ago)
• Topics: lidar, sparkfun, sparkfun-projects
• Language: C++
• Size: 4.12 MB
• Stars: 22
• Watchers: 14
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
SparkFun Speed Trap

=======

This is a project demonstrating how to display instantaneous speed from a LIDAR on two [large 7-segment displays](https://www.sparkfun.com/products/8530).

![Speed displayed on wall](https://github.com/sparkfun/Speed_Trap/blob/master/Wall%20Display.png)

*Note the handprints on the wall...*

The new [LIDAR-Lite](https://www.sparkfun.com/products/13167) from PulsedLight is pretty nice. It outputs readings very quickly. From multiple distance readings we can calculate speed (velocity is the derivative of position).

Repository Contents

-------------------

* **/firmware** - The code that runs on the Arduino

* **/hardware** - An Arduino shield to easily connect a computer PSU and the 6 wires for the large digit driver backpack

License Information

-------------------

This design is [OSHW](http://www.oshwa.org/definition/) and public domain but you buy me a beer if you use this and we meet someday ([Beerware license](http://en.wikipedia.org/wiki/Beerware)).