Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

To supply targeting data for the launcher, an Arduino Uno uses an ultrasonic sensor pair mounted atop a servo. As the servo rotates, the returns from the ultrasonic sensor are plotted on a screen ...

Arduino is little open source circuit board that lets you create some fairly compelling projects with a few lines of code and some circuit boards. The ...

Do you desire a teeny, tiny, little Arduino board with OLED display? You bet you do! Microview is a new "chip-sized" Arduino on Kickstarter that costs $45. What can it do? All kinds of stuff!

Let's continue our series looking at some of the good projects surfacing via crowdfunding, on sites like KickStarter. You never know, you may be tempted to contribute, and help make something happen..

The MicroView is a "Chip-Sized" arduino-compatible that features a built-in OLED display, and is sized perfectly for bread boarding, or use in many different projects.

This one is an unusual smart home project, potentially - how to monitor a fish tank’s health with an AI-enabled ultrasonic sensor system. The detailed project is highlighted on Hackser.io and features ...

The sensor package comprises an ultrasonic distance sensor, a microcontroller running Arduino firmware, a micro-SD card for datalogging, a real-time clock for timekeeping and sleep functions, and an ...

Qualcomm has unveiled the 3D Sonic Sensor Gen 2 with a larger ultrasonic fingerprint reader area and much-improved performance.