Ultrasonic sensor arduino 4 pin1/14/2024 This sensor can provide 2cm to 400cm of non-contact measurement functionality with an accuracy of up to 3mm. In this project, we are using an ultrasonic sensor to measure the distance of an object from the sensor and an LCD display to see the distance. Arduino Distance Measurement using Ultrasonic Sensor. By calculating the traveling time of trigger pulse and echo pulse we can easily calculate the distance between object and sensor. As the speed of the sound is already known to us, we can easily calculate the distance. It has a transmitter/trigger to generate a sound pulse and a receiver to receive an echo pulse coming from the targeted object. Ultrasonic sensors are based on measuring the properties of sound waves. Serial.Ultrasonic is a great sensor when it comes to measuring a distance of an object. Lcd.print(_buffer) // print distance (in inches) on LCD Lcd.setCursor(10, 1) // move cursor to position 10, 2nd row Serial.println(_buffer) // print distance (in cm) on serial monitor Lcd.print(_buffer) // print distance (in cm) on LCD Lcd.setCursor(10, 0) // move cursor to position 10, 1st row Sprintf( _buffer, "%03u cm", centimeters ) initialize the LCD with 16 columns and 2 rows:Ĭentimeters = ultrasonic.MeasureInCentimeters() ĭelay(250) // wait 250 milliseconds between readings #include "Ultrasonic.h" // include Seeed Studio ultrasonic ranger library #include "rgb_lcd.h" // include Seeed Studio LCD library * This is a free software with NO WARRANTY. * the 1602 LCD and Arduino IDE serial monitor. * Distance value is printed in centimeters and inches on * Interfacing Arduino with Seeed Studio Grove LCD (I2C 16x2 LCD) Seeed Studio provides a nice open source library for their LCD module which can be installed from Arduino IDE library manager (Sketch -> Include Library -> Manage Libraries …, in the search box write “grove lcd” and install the one from Seeed Studio). SIG (signal) pin is connected to Arduino digital pin 2.Īrduino with Grove ultrasonic ranger and 1602 LCD code: NC is a not connected pin (it looks as it is connected to pin D3), The Grove ultrasonic ranger (ultrasonic distance sensor) is connected to base shield port D2, internally it’s connected as follows: SCL is connected to Arduino analog pin 5 (A5). SDA is connected to Arduino analog pin 4 (A4), The Grove 1602 LCD display is connected to base shield I2C port where: Note that the base shield is directly mounted to the Arduino UNO board. The following image shows the connection of the 3 Grove modules (base shield, 16×2 LCD and ultrasonic ranger module) using 4-pin Grove cables.
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