10:27 am March 6, 2019 By Julian Horsey Makers, Arduino enthusiasts and students looking to learn more about ultrasonic sensors, may be interested in this DIY Arduino radar created by Mr Innovative.

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 ...

In fact, some time ago Oppo showcased a "wide zone" optical fingerprint sensor, which recognises an area up to 15 times bigger than current sensors. A similar technology was also used by Vivo in ...