As shown above the hcsr04 ultrasonic us sensor is a 4 pin module, whose pin names are vcc, trigger, echo and ground respectively. Hcsr04 is an ultrasonic ranging module that provides 2 cm to 400 cm noncontact measurement function. Each hcsr04 module includes an ultrasonic transmitter, a receiver and a control circuit. Timing chart, pin explanations and taking distance measurements 4. Etc2, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The ranging accuracy can reach to 3mm and effectual angle is pdf datasheet. To use equation 1 the speed of sound needs to determined,which is 343 meters per second at standard temperature and pressure. It is very easy to connect to microcontrollers such. Ultrasonic pulses travel outward until they encounter an object, the object causes the the wave to be reflected back towards the unit. Hcsr04 ultrasonic sensor user guide components datasheet pdf data sheet free from datasheet data sheet search for integrated. The senor receives this signal and converts it to an electric signal.
This economical sensor provides 2cm to 400cm of noncontact measurement functionality with a ranging accuracy that can reach up to 3mm. Hcsr04 datasheet ultrasonic ranging detector sensor. The transmitter emits a 8 bursts of an directional 40khz ultrasonic wave when triggered and starts a timer. The hcsr04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. This sensor is a very popular sensor used in many applications where measuring distance or sensing objects are required. How ultrasonic sensors work ultrasonic sensors use sound to determine the distance between the sensor and the. Hcsr04 user guide the transmitter emits a 8 bursts of an directional 40khz ultrasonic wave when triggered and starts a timer. The parallax ping ultrasonic distance sensor provides precise, noncontact distance measurements from about 2 cm 0.
Ultrasonic sensor, hcsr04 datasheet, hcsr04 circuit, hcsr04 data sheet. The modules includes ultrasonic transmitters, receiver and control circuit. Hcsr04 datasheet, hcsr04 pdf, hcsr04 data sheet, hcsr04 manual, hcsr04 pdf, hcsr04, datenblatt, electronics hcsr04, alldatasheet, free, datasheet, datasheets. Learn about the hc sr04 ultrasonic sensor with the explanation on its working, pinout, pin description, 2d model and datasheet. Ultrasonic ranging module hc sr04 provides 2cm 400cm noncontact measurement. Hcsr04 datasheetpdf list of unclassifed manufacturers. Ultrasonic ranging module hc sr04 provides 2cm 400cm noncontact measurement function, the ranging accuracy can reach to 3mm.
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