Ultrasonic sensors provide a more accurate fingerprint scan when compared to traditional optical scanners, but they're also more expensive. Goodix's under-display ultrasonic fingerprint scanner aims ...

There is a lot of buzz about electromagnetic (EM) detection and ranging sensor technology, which encompass radar, lidar, infrared (IR), ultra-wide bandwidth (UWB), and many others. However, there are ...

💧 Monitoring water tanker level using NodeMCU ESP8266 and HC-SR04P Ultrasonic Sensor and broadcasting it using a simple HTTP server inside NodeMCU ESP8266 and show data in an Android App ...

This tutorial covers the basic to connect and use the ultrasonic hc-sr04 sensor to a Calliope Mini together with the Open Roberta Lab. The official supported Grove - Ultrasonic Ranger sensor works ...

Abstract: This paper presents the simulation and experimental investigation on mapping done using ultrasonic sensor(HC-SR04). Issues related to exploration, mapping and localization are discussed.

ABSTRACT: In this study, a simple Arduino-based experiment was designed to examine the acceleration of the object during free fall and to calculate the value of “g” (acceleration due to gravity).

1 Department of Mechatronics Engineering, CEME, National University of Sciences and Technology, Islamabad, Pakistan. 2 DBS&H, CEME, National University of Sciences and Technology, Islamabad, Pakistan.