The hcsr04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. Timing chart, pin explanations and taking distance measurements 4. It offers excellent noncontact range detection with high. The modules includes ultrasonic transmitters, receiver and control circuit. It is very useful for accurate distance measurement of the target object and mainly works on the sound waves. Ultrasonic ranging module hc sr04 provides 2cm 400cm noncontact measurement function, the ranging accuracy can reach to 3mm. Us transmitter receiver pair, ir sensor module, ir sensor pair, ir analog distance sensor, hcsr04 ultrasonic sensor working. The hcsr04 ultrasonic us sensor is an ultrasonic transducer that comes with 4 pin interface named as vcc, trigger, echo, and ground. The purpose of this file is to explain how the hcsr04 works. Ultrasonic sensors use sound to determine the distance between the sensor and the. How ultrasonic sensors work ultrasonic sensors use sound to determine the distance between the sensor and the. As shown above the hcsr04 ultrasonic us sensor is a 4 pin module, whose pin names are vcc, trigger, echo and ground respectively.
If youre like me, youve dreamed of being a dolphin. All the relevant design files like schematics, bom, layer plots, altium files, gerber, and msp430. Ultrasonic sensor module description the ultrasonic sensor module is a convenient way for measuring distances from objects. The jsnsr04t is an easy to use waterproof ultrasonic distance sensor with a range of 25 to 450 cm. Us transmitter receiver pair, ir sensor module, ir sensor pair, ir analog distance sensor. This module has a lot of applications such as parking sensors, obstacle and terrain monitoring systems, industrial distance measurements, etc. This sensor is a very popular sensor used in many applications where measuring distance or sensing objects are required. Get your free pdf documents and benefit from valuable insights and. The principle of ultrasonic distance measurement used the alreadyknown air spreading velocity, measuring the time from launch to reflection when it. Waterproof jsnsr04t ultrasonic distance sensor with. Ultrasonic distance measurement boosterpack texas instruments. Ultrasonic distance sensor 3v or 5v hcsr04 compatible.