HC-SR04 - Ultrasonic sensor
Introduction
The HC-SR04 is an ultrasonic sensor consisting of a transmitter and a receiver that can be used to detect objects and measure the distance to them up to 4m from the device.
Application: software and function
The HC-SR04 is a candidate component for use in the sensor networks. Further investigation of the licensing of software libraries available to manage the device is required before a final decision can be made whether to adopt it for use.