Category: arduino

Arduino Relay Control

Arduino Relay Control

Whenever we need to connect any AC Appliance in our embedded circuits, we use a Relay. So in this arduino relay control tutorial we will simply learn How to interface a Relay with Arduino. Here we are not using any Relay Driver IC like ULN2003 and will only use an NPN transistor to control relay.

Temperature Controlled AC Home Appliances usin…

Temperature Controlled AC Home Appliances using Arduino and Thermistor

In this tutorial, we will attach a AC appliance with Relay and make a temperature controlled home automation system using Arduino. It also shows the temperature and appliance status on the 16*2 LCD display connected with the circuit.

DIY Fire Fighting Robot

DIY Fire Fighting Robot

In this project, we will learn how to build a simple robot using Arduino that could move towards the fire and pump out water around it to put down the fire. It is a very simple robot that would teach us the underlying concept of robotics; you would be able to build more sophisticated robots once you understand the following basics.

Measure Sound/Noise Level in dB with Microphon…

Measure Sound/Noise Level in dB with Microphone and Arduino

We have some instruments which could measure the sound signals in dB but these meters are slightly expensive and sadly we do not have an out of box sensor module to measure sound levels in decibels. And it is not economical to purchase expensive microphones for a small Arduino project which should measure the sound level in a small classroom or living room.

Interfacing Nokia 5110 Graphical LCD with Ardu…

Interfacing Nokia 5110 Graphical LCD with Arduino

In this tutorial we will learn how to interface a Nokia 5110 Graphical LCD with Arduino and get it working.

Smart Blind Stick using ArduinoThis Smart stick will have an…

Smart Blind Stick using Arduino

This Smart stick will have an Ultrasonic sensor to sense distance from any obstacle, LDR to sense lighting conditions and a RF remote using which the blind man could remotely locate his stick. All the feedbacks will be given to the blind man through a Buzzer. Of course you can use a vibrator motor in place of Buzzer and advance a lot more using your creativity.

Dog vs. Robot! Who will win?!?!? … oh.You can control…

Dog vs. Robot! Who will win?!?!? … oh.

You can control robots online right now: https://letsrobot.tv

Automatic AC Temperature Controller using Arduino, DHT11 and IR…

Automatic AC Temperature Controller using Arduino, DHT11 and IR Blaster

In this project we are going to make a small Automatic Temperature Control Circuit that could minimize the electricity chargers by varying the AC temperature automatically based on the Rooms temperature. By varying the set temperature periodically we can avoid making the AC to work for lower temperature values for a long time and thus making it consume less power.

Arduino DC Motor Speed and Direction Control using Relays and…

Arduino DC Motor Speed and Direction Control using Relays and MOSFET

Control Your Computer with Hand Gestures using ArduinoWe use two…

Control Your Computer with Hand Gestures using Arduino

We use two Ultrasonic sensors to determine the position of our hand and control a media player (VLC) based on the position. I have used this for demonstration, but once you have understood the project, you can do anything by just changing few lines of code and control your favorite application in your favorite way.