This Code doesn't use any delays and is event-driven. Serial.The main heart of this project is the new ping library.= Download Library from here 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 That will send out an 8 cycle sonic burst which. In order to generate the ultrasound, you need to set the Trig on a High State for 10 µs. In this tutorial, you will learn how the sensor works and how to use it with Arduino. The Ground and the VCC pins of the module needs to be connected to the Ground and the 5 volts pins on the Arduino Board respectively and the trig and echo pins to any Digital I/O pin on the Arduino Board. It is commonly used in obstacle avoiding robots and automation projects. * 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. Grove ultrasonic ranger -> official pageĪrduino with Grove ultrasonic ranger and 1602 LCD circuit:.The following image shows a basic hardware overview of the Grove ultrasonic ranger module. Grove Ultrasonic ranger hardware overview: Low cost and easy to use through Grove connector (cable), plug and play.3.3V/5V compatible, wide supply voltage range: 3.2v~5.2v.The time between the transmission and reception of the signal allows us to calculate the distance to an object. Hc-sr04 transmit the frequency of 40khz sound wave and when an object detects then reflect the signal to echopin. This means it can be directly connected to any Raspberry pi I/O pin. The ultrasonic sensor continues to the transmitter the signal by trigpin and receives the signal by echopin. Another difference is that HC-SR04 only supports 5V systems, while the Grove ultrasonic distance sensor supports both 5V and 3.3V systems. This sensor can measure distances from 3cm to 350cm with an accuracy up to 2mm.Ĭompared with traditional ultrasonic sensor module HC-SR04, the Grove ultrasonic distance sensor has an integrated single-chip microcomputer, it requires only one I/O pin. The Grove ultrasonic ranger (ultrasonic distance sensor) is an ultrasonic transducer that uses ultrasonic waves to measure the distance. Interfacing Arduino with Seeed Studio Grove LCD To see how to interface the Arduino with Grove I2C LCD, visit this post: This project shows how to do that where distance value is printed (in centimeters and inches) on Grove LCD (I2C 1602 LCD display) and Arduino IDE serial monitor. Using Arduino and Seeed Studio Grove ultrasonic ranger we can easily build a distance meter.
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