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Raspberry Pi Sense HAT impact recorder for your car

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Posted August 7, 2019

Let the accelerometer and gyroscope of your Raspberry Pi Sense HAT measure and record impact sustained in a car collision.

Image credit: Ashu_d/instructables.com, Creative Commons Attribution Non-Commercial Share-Alike. Click to open larger image

Raspberry Pi Sense HAT

The Raspberry Pi Sense HAT was originally designed for the European Astro Pi Challenge, inviting schoolchildren to code their own experiments for two Raspberry Pi units currently orbiting the Earth upon the International Space Station.

Image credit: Raspberry Pi Foundation. Click to open larger image

The Sense HAT is kitted out with an 8×8 RGB LED matrix and a five-button joystick, and it houses an array of useful sensors, including an accelerometer and gyroscope.

And it’s these two sensors that Instructables user Ashu_d has used for their Impact Recorder for Vehicles.

Impact Recorder for Vehicles

“Impact Recorder is designed to record impact sustained to a vehicle while driving or stationary,” Ashu_d explains. Alongside the Raspberry Pi and Sense HAT, the build also uses a Raspberry Pi Camera Module to record footage, saving video and/or picture files to the SD card for you to examine after a collision. “The impacts are stored in the database in the form of readings as well as video/picture.”

By following Ashu_d’s Instructables tutorial, you’re essentially building yourself a black box for your car, recording impact data as the Sense HAT records outside the standard parameters of your daily commute.

Image credit: Ashu_d/instructables.com, Creative Commons Attribution Non-Commercial Share-Alike. Click to open larger image

“Upon impact, remote users can be verified in real time,” they continue, “and remote users can then watch the saved video or take remote access to the Pi Camera Module and watch events accordingly.”

Ashu_d goes into great detail on how to use Node-RED and MQTT to complete the project, how you can view video in real time using VLC, and how each element works to create the final build over at Instructables.

Source: Raspberry Pi blog, by Alex Bate.

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