A new technology has been developed that enables cuffless noninvasive blood pressure monitoring by using ultrasonic to track real-time changes in vascular diameter—without the need for a traditional ...

Default value for maximum measurement distance is 4m, since HC-SR04 sensor can't measure reliably beyond that. However, if you are using another sensor or if you you don't care about distances larger ...

Abstract: This paper presents design and implementation of an ultrasonic sensor based walking stick for visually impaired person. An ultrasonic sensor module, HC-SR04 is used for obstacle detection in ...

Abstract: In this paper, ultrasonic sensor based on multimode interference in single-mode–multimode–single-mode optic fiber structure for non-contact displacement measurement is presented and ...

This repository is for interfacing the HC-SR04 Ultrasonic sensor with the Firebird Robot. You will need both the HC-SR04 sensor and the Firebird robot in order to work on this repository. This ...

Precision sowing requires that the seeds be sown to a sowing depth suitable for seed germination according to the accurate sowing amount and appropriate seed spacing ( Zhai et al., 2014). The ...