An Arduino project implementing a security alarm system featuring PIN code access via a 4x4 keypad, status updates on a 16x2 LCD, motion detection using an HC-SR04 ultrasonic sensor, and ...

Taste The Code How to make an ultrasonic non-contact Arduino Air Drum Set for hours of fun Posted: May 14, 2025 | Last updated: May 14, 2025 Hi, I'm Bill. I'm a software developer with a passion ...

The Raspberry Pi is a credit card-sized computer capable of running full-fledged Linux distributions such as Raspberry Pi OS, ...

Abstract: This paper presents a multi-ultrasonic-sensor system designed for Simultaneous Localization and Mapping (SLAM) on the open source robot Kobuki Turtlebot. The operating system used in this ...

The smart collision detection is only available if you have mounted the ultrasonic sensor in the top position ... Play predefined melodies with the buzzer with buzzer_melody(). You can also specifiy ...

A pocket-size ultrasonic bladder-volume sensor has been constructed and tested with successful results. This paper describes the sensor and presents results from its use on healthy volunteers.