Sunglasses that serve an even more useful purpose than protecting the eyes of the blind. They can help them detect objects in front of them.
Project tutorial by GardnerTech
A pair of talking smart glass, intended to help the visually impaired.
Project tutorial by Amal Shajan
Speedometer that uses a GPS for speed sensing and an RGB LED to indicate speed to the user. Also features a blinking white light.
Project tutorial by Jeremy S. Cook
There are a lot of Arduino-based metal detectors using various technologies. This is one of them that uses direct frequency measurement.
Project tutorial by Andrius Purr
A low-power Arduino car counter that works by logging each time a car drives over a rubber tube across the road.
Project tutorial by Aetos999
Move your hand around - lights ON. Move hands over that again - lights OFF. Cool, right?
Project tutorial by ashraf_minhaj
The VL53l01x distance sensor as EV3 sensor.
Project in progress by Tom Eilers
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