You simply read a register from the sensor and determine which key to send using the Nicohood library. The serial communications is I2C and there’s a tiny optical sensor onboard along with an IR ...

How Aptiv Plans to Make Cars Better to Drive, Prettier, and Easier to Build Urban hands-free driving, a much-needed replacement for ugly ultrasonic parking sensors, and a fresh take on electrical ...

[Andy] demonstrates building an ultrasonic anemometer using a cheap after-market parking distance sensor kit and an Arduino. Demo video after the break.

A low-cost (~$100), do-it-yourself (DIY) ultrasonic water level sensor/datalogger has been designed, constructed, and tested for use in education, citizen/community science, and research settings. The ...