Ultrasonic Module Hc Sr04 Distance Sensor For Arduino Code

Connect hc sr04 as a 3 pin ultrasonic sensor.

Ultrasonic module hc sr04 distance sensor for arduino code.

Vcc is the power supply for hc sr04 ultrasonic distance sensor which we connect the 5v pin on the arduino. It has a focus of less than 15 degrees and an accuracy of about 2mm. It is commonly used to measure distance in close proximity ranges but it was actually to detect the presence of nearby objects without any physical contact. Echo pin produces a pulse when the reflected signal is received.

A 4 pin hc sr04 need to be interfaced like a 3 pin sensor module for a 3 wire connection which shares the trigger and echo pins to operate in a single line. This sensor is very popular among the arduino tinkerers. This sensor uses ultrasonic sound to measure distance just like bats and dolphins do. So here we provide an example on how to use the hc sr04 ultrasonic sensor with the arduino.

The hc sr04 is one of the most used ultrasonic sensors. Hm 10 bluetooth module hc sr04 ultrasonic sensor module for avoiding collisions during flight 4 coreless dc motors 3 7v each mpu 6050 sensor as a gyro and accelerometer by the way also please provide the code for programming the nano as a flight controller with all the rest of the components please provide the code. Ultrasonic sensor hc sr04 is a sensor that can measure distance. Considering the travel time and the speed of the sound you can calculate the distance.

So it can run with the same arduino code used for a ping sensor. The hc sr04 ultrasonic sensor uses sonar to determine the distance of an object just like the bats do. Arduino uno r3 i use the adafruit mount one 1 hc sr04 ultrasonic sensor one 1 red led one 1 green led two 2 560 ohm green blue brown gold resistors half breadboard eight 8 male male hookup wires a ruler that measures centimeters or use the serial monitor. You can check the ultrasonic sensor hc sr04 sensor on maker advisor to find the best price.

The length of the pulse is proportional to the time it took for the transmitted signal to be detected. Arduino with hc sr04 sensor. It offers excellent non contact range detection with high accuracy and stable readings in an easy to use package from 2 cm to 400 cm or 1 to 13 feet. In this tutorial we ll understand the working of ultrasonic sensor understand the arduino program for distance measurement using ultrasonic sensor hc sr04.

Trig trigger pin is used to trigger the ultrasonic sound pulses. An hc sr04 module can operate through a single line as like a ping sensor. Gnd should be connected to the ground of arduino. Here is a quick tutorial on how to measure distance using ultrasonic sensor and arduino.

It emits an ultrasound at 40 000 hz 40khz which travels through the air and if there is an object or obstacle on its path it will bounce back to the module.