Ultrasonic sensor

I will show you how to use an ultrasonic sensor.

Disclosure: This post contains affiliate links and I may be compensated if you make a purchase after clicking through one of my links. All of the components for the object avoidance robot with the exception of the cover are available through Amazon. The complete robot project instructions are presented in posts one through ten. The […]

In this tutorial we will learn how to use the HC-SR04 Ultrasonic sensor with Arduino. It's the most popular sensor for measuring distance.

Ultrasonic sensor for distance measurements. The HY-SRF05 is an ultrasonic emitter/receiver used to measure distance with a precision of ~0.3cm.

Measuring Water Level With Ultrasonic Sensor: For my next big project (automated plant watering system) I was in need of having water level meter. I was choosing from contact and contactless methods of measuring fluid level in tank. Contact methods are resistive method, capacitive and inductive…

This is a simple tutorial on interfacing ultrasonic sensor with nodemcu WiFi module and measure distance. Recently i made an internet of things project which involves an ultrasonic sensor and nodemcu WiFi module in it. Ultrasonic sensor which is used in the project is the most popular one among the diy circuit community, the hcsr04…

A brief read on the Introduction to Ultrasonic Sensor HC-SR04. It is a sensor based on transmitter and receiver where former is used to send the waves...

Introduction: HC-SR04 ultrasonic module can offer non-contact distance sensing function, the range from 2cm to 400cm. and the range accuracy is up to 3mm; the module includes ultrasonic transmitter, receiver and control circuit. The sensor measures distance using sonar; an ultrasonic (well above human hearing) pulse is transmitted from the unit and distance-to-target is determined by measuring the time required for the echo return. The module is based on the measurement of time flight of…

Learn about HC-SR04 Ultrasonic Distance Sensor module. This tutorial includes working, Pinout, Specs, Datasheet, Wiring, Library, Code & Arduino Project.

The Key Differences in PIR vs Ultrasonic Occupancy Sensors