sensors

Color Detector using Arduino Color Detector using Arduino Uno

In this project we are going to interface TCS3200 color sensor with Arduino UNO. TCS3200 is a color sensor which can detect any number of colors with right programming. TCS3200 contains RGB (Red Green Blue) arrays. As shown in figure on microscopic level one can see the square boxes inside the eye on sensor. These square boxes are arrays of RGB matrix. Each of these…

Theft Alert System using ATmega8 Microcontroller and Tilt Sensor Anti-Theft Alert System using ATmega8 Microcontroller

In this project we are going to make a vibration alert system with ATMEGA8 microcontroller. This can also be used as a theft alert system, for that we are going to interface tilt sensor with ATMEGA8. A tilt sensor is shown in below figure.

We can see there is a cylinder in the picture, in that cylinder there will…

Heartbeat Monitor Project using Arduino Arduino Based Heartbeat Monitor

Heart rate, body temperature and blood pressure monitoring are very important parameters of human body. Doctors use various kind of medical apparatus like thermometer for checking fever or body temperature, BP monitor for blood pressure measurement and heart rate monitor for heart rate measurement. In this project, we have built an Arduino based heartbeat monitor which…

Flex sensor interfacing with AVR Microcontroller Flex Sensor Interfacing with AVR Microcontroller

In this tutorial we are going to interface FLEX sensor with ATMEGA8 microcontroller. In ATMEGA8, we are going use 10bit ADC (Analog to Digital Conversion) feature to do this job. Now the ADC in ATMEGA cannot take a input more than +5V.  We have also covered how to interface flex sensor with Arduino, you can also check out that tutorial if intrested. 

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Automatic Temperature Controlled Fan Project using Arduino Arduino Temperature Control - Adjust Fan Speed based on Temperature

In this arduino based project, we are going to build a temperature-controlled fan using Arduino. With this circuit, we will be able to adjust the fan speed in our home or office according to the room temperature and also show the temperature and fan speed changes on a 16x2 LCD display. To do this we will be using an Arduino UNO Board, LCD, DHT11…

Arduino Uno Humidity Sensor Project Humidity and Temperature Measurement using Arduino

Humidity and temperature are common parameters to measure environmental conditions. In this Arduino based project we are going to measure ambient temperature and humidity and display it on a 16x2 LCD screen. A combined temperature and himidity sensor DHT11 is used with Arduino uno to develop this Celsius scale thermometer and percentage scale humidity measurement project. In…

PIR Sensor based Automatic Door Opener Project using PIR Sensor Automatic Door Opener using Arduino

You must have seen automatic door openers in shopping malls and other commercial buildings. They open the door when someone comes near the entrance and close it after some time. A number of technologies are available to make such kinds of systems, like PIR sensors, Radar sensors,  Laser sensors, Infrared sensors, etc. In this Arduino based automatic door…

Distance Measurement using Ultrasonic Sensor and AVR Microcontroller Distance Measurement using HC-SR04 and AVR Microcontroller

In this tutorial we are going to discuss and design a circuit for measuring distance. This circuit is developed by interfacing ultrasonic sensor“HC-SR04” with AVR microcontroller. This sensor uses a technique called “ECHO” which is something you get when sound reflects back after striking with a surface.

 

We know that…

AVR Microcontroller Based Digital Thermometer using LM35 Temperature Measurement using LM35 and AVR Microcontroller

In this project we are going to design a circuit for measuring temperature. This circuit is developed using “LM35”, a linear voltage sensor. Temperature is usually measured in “Centigrade” or “Faraheite”. “LM35” sensor provides output based on scale of centigrade.

LM35 is three pin transistor like device. It has VCC, GND and OUTPUT. This sensor…

Arduino based LPG Gas Detector LPG Gas Leakage Detector using Arduino

While LPG is an essential need of every household, its leakage could lead to a disaster. To alert on LPG leakage and prevent any mishappening there are various products to detect the leakage. Here we have developed an Arduino based LPG gas detector alarm. If gas leakage occurs, this system detects it and makes an alert by buzing the buzzer attached with the circuit.…