Ultrasonic module hc-sr04 pdf

The ultrasonic receiver would detect the reflected wave and stop the stop timer. As we connect the module to 5v and initialize the input pin, it starts transmitting the sound waves which then travel through the air and hit the. Complete guide for ultrasonic sensor hcsr04 with arduino this article is a guide about the popular ultrasonic sensor hc sr04. The module sends a short pulse through pin trig to. It will give a brief explanation of how ultrasonic sensors work in general. Each hcsr04 module includes an ultrasonic transmitter, a receiver and a control circuit. The senor receives this signal and converts it to an electric signal. Head to toe product users manual hcsr04 ultrasonic sensor users manual v1. In this arduino tutorial you will learn how to use the hcsr04 ultrasonic sensor. This economical sensor provides 2cm to 400cm of noncontact measurement functionality with a ranging accuracy that can reach up to 3mm. Ultrasonic sensors use sound to determine the distance between the sensor and the closest object in its. Hcsr04 ultrasonic sensor working as shown above the hcsr04 ultrasonic us sensor is a 4 pin module, whose pin names are vcc, trigger, echo and ground respectively. Hcsr04 datasheet ultrasonic ranging detector sensor. Hcsr04 is an ultrasonic ranging module that provides 2 cm to 400 cm non contact measurement function.

The purpose of this file is to explain how the hcsr04 works. Hcsr04 datasheet pdf pinout ultrasonic ranging module. Complete guide for ultrasonic sensor hcsr04 with arduino. The ranging accuracy can reach to 3mm and effectual angle is hcsr04 pdf datasheet. Water level meter using ultrasonic hcsr04 and wifi module. The next pulse can be transmitted when the echo is faded away. Hcsr04 user guide the transmitter emits a 8 bursts of an directional 40khz ultrasonic wave when triggered and starts a timer.

Hcsr04 datasheet, hcsr04 pdf, hcsr04 pinout, equivalent, replacement ultrasonic ranging module elecfreaks, schematic, circuit, manual. Ultrasonic sensor hcsr04 and arduino tutorial youtube. Hcsr04 is an ultrasonic ranging module that provides 2 cm to 400 cm noncontact measurement function. It is very useful for accurate distance measurement of the target object and mainly works on the sound waves.

Well explain how it works, show you some of its features and share an arduino project example you can follow to integrate in your projects. Ultrasonic pulses travel outward until they encounter an object, the object causes the the wave to be reflected back towards the unit. Ultrasonic ranging module hc sr04 provides 2cm 400cm noncontact measurement function, the ranging accuracy can reach to 3mm. Bc04 has external 8m flash and edr module hc06 is industrial, and compatible with civil hc04 hc 49 tape and reel, insulator tab,3lead,and custom lead length options available. This ultrasonic ranging alarm kit is composed of one hcsr04 ultrasonic sensor module, a buzzer and the stc89c25 chipready to use. Arduino ultrasonic sensor hcsr04 or hysrf05 energia zero. Ultrasonic sensor hcsr04 and arduino tutorial how to mechatronics. It will also explain how to wire the sensor up to a microcontroller and how to takeinterpret readings. This sensor is a very popular sensor used in many applications where measuring distance or sensing objects are required. The hcsr04 ultrasonic us sensor is an ultrasonic transducer that comes with 4 pin interface named as vcc, trigger, echo, and ground. To check the water level, ultrasonic hcsr04 is the distance sensor. The waves are tranismittd and received by the module and calculate the next. Ultrasonic ranging module hc sr04 sparkfun electronics. Both these ultrasonic range modules are fairly cheap modules, expect the hy srf05 to be the more expensive of the these two.