Arduino Based Distance Measurement using Ultrasonic Sensor

Ultrasonic sensors are great tools to measure distance without actual contact and used at several places like water level measurement, distance measurement etc. This is an efficient way to measure small distances precisely. In this project we have used an Ultrasonic Sensor to determine the distance of an obstacle from the sensor. Basic principal of ultrasonic distance measurement is based on ECHO. When soun ...

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Pressure Sensor BMP180 Interfacing with Arduino Uno

In this tutorial we are going to design a Barometric Pressure Measuring System using BMP180 and ARDUINO. First of all for interfacing BMP180 to ARDUINO, we need to download a library specifically designed for BMP180. This library is available at: https://github.com/adafruit/Adafruit-BMP085-Library  After attaching that library, we can call special functions which will ease working with BMP180 sensor. Compon ...

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Arduino 101 Curie iOS Pulse Sensor

I want use the Genuino 101 by Intel and Arduino for a project that regards health, but I want to use all the characteristics of the Arduino 101. One of most important characteristics of this board, I think, is the BLE connection. Then I want to connect my phone with Arduino 101 for my Autogenic Training. I can monitor my pulse during the sessions. The monitoring is possible by use of the pulse sensor AMPED ...

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Working of Force Sensor with Arduino

In this project we will be developing a fun circuit using Force sensor and Arduino Uno. This circuit generates sound linearly related to force applied on the sensor. For that we are going to interface FORCE sensor with Arduino Uno. In UNO, we are going use 8 bit ADC (Analog to Digital Conversion) feature to do the job. A FORCE sensor is a transducer which changes its resistance when pressure is applied on s ...

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Servo Motor Control by Flex Sensor

In this tutorial we are going to develop a circuit using FLEX sensor, Arduino Uno and a Servo motor. This project is a servo control system where the servo shaft position is determined by the flex or bent or deviation of the FLEX sensor. Lets first talk a bit about servo motors. Servo Motors are used where there is a need for accurate shaft movement or position. These are not proposed for high speed applica ...

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Servo Position Control with Weight (Force Sensor)

In this tutorial we will develop a circuit using Force sensor, Arduino Uno and a servo motor. It will be a servo control system where the servo shaft position is determined by the weight present on the force sensor. Before going any further let’s talk about about the servo and other components. Servo Motors are used where there is a need for accurate shaft movement or position. These are not proposed for hi ...

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IOT based Air Pollution Monitoring System using Arduino

In this project we are going to make an IOT Based Air Pollution Monitoring System in which we will monitor the Air Quality over a webserver using internet and will trigger a alarm when the air quality goes down beyond a certain level, means when there are sufficient amount of harmful gases are present in the air like CO2, smoke, alcohol, benzene and NH3. It will show the air quality in PPM on the LCD and as ...

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Interfacing MQ2 to Arduino- Gas Sensor for Smoke-Butane-CH4 and LPG

In this article, we are going to learn how to interface MQ2 Gas Sensor with Arduino. MQ2 is basically a general purpose gas sensor (similar to MQ5) which can sense a broad range of gases like LPG, Butane, Methane(CH4), Hydrogen and in addition to these gases MQ2 is sensitive to smoke as well. In a previous article, we have wrote a tutorial on Interfacing MQ5 Gas sensor to Arduino. Both MQ5 and MQ2 are basic ...

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Interfacing PIR Sensor to Arduino – Connect Motion Sensor/Detector to Arduino

In this article, we are going to learn how to interface/connect PIR Sensor or Passive Infrared Sensor to Arduino. We have written a tutorial on how to interface PIR sensor to 8051 previously in CircuitsToday! So a PIR sensor which is also known as Pyroelectric sensor or Passive Infrared Sensor is basically an electronic sensor employed in motion detecting applications. A PIR sensor detects or measures IR (I ...

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Interfacing MQ5 LPG Sensor to Arduino

In this guide, we learn how to interface MQ5 Gas sensor (which is a generic Gas Sensor more suited to detect and determine LPG concentrations) with Arduino. In this tutorial, we are using the MQ5 Gas sensor module (which is widely available in market) . This module has two output possibilities – an analog out (A0) and a digital out (D0). The analog out can be used to detect Gas leakage and to measure volume ...

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Gas Leakage Detector using Arduino and GSM Module with SMS Alert and Sound Alarm

We have published lots of interesting arduino projects like GSM based Fire Alarm System , Line Following Robot, RFID Based Access Control System and many other useful projects. This time, we are publishing a highly useful home application – Gas Leakage Detector using Arduino and GSM Module with SMS Alert and Sound Alarm.  We have published an LPG  Sensor Project using Arduino and MQ2 sensor before – which s ...

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Calibration

This example demonstrates one techinque for calibrating sensor input. The board takes sensor readings for five seconds during the startup, and tracks the highest and lowest values it gets. These sensor readings during the first five seconds of the sketch execution define the minimum and maximum of expected values for the readings taken during the loop. Circuit Analog sensor (e.g. potentiometer, light sensor ...

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