Embedded For You

Arduino - DC Motor In this chapter, we will interface different types of motors with the Arduino board (UNO) and show you how to connect the motor and drive it from your board. There are three different type of motors − DC motor Servo motor Stepper motor A DC motor (Direct Current motor) is the most common type of motor. DC motors normally have just two leads, one positive and one negative. If you connect these two leads directly to a battery, the motor will rotate. If you switch the leads, the motor will rotate in the opposite direction. Warning  − Do not drive the motor directly from Arduino board pins. This may damage the board. Use a driver Circuit or an IC. We will divide this chapter into three parts − Just make your motor spin Control motor speed Control the direction of the spin of DC motor Components Required You will need the following components − 1x Arduino UNO board 1x PN2222 Transistor 1x Small 6V DC Motor 1x 1N4001 diode 1x 270 Ω

Text to Speech on arduino Give your project a voice! Without Text-to-Speech Module, Arduino TTS library makes it possible, voice synthesizer that converts a stream of digital text into retro (robot) speech. Its simple needs only external LM385 amplifier with arduino Uno, No special components or shields required. Thanks to Gabriel Petrut and Clive Webster for making this thing. Application Ideas: Reading Internet-based data streams (such as e-mails or Twitter feeds) Conveying status or sensor results from robots, scientific equipment, or industrial machinery Language learning or speech aids for educational environments Components required:  Arduino Uno  LM386  Speaker  Capacitors and few resistors as shown in circuit Step: 1 Circuit Diagram Step 2: Programming Download Library from here /* Text To Speech syntesis library Copyright (c) 2008 Clive Webster. All rights reserved. Nov. 29th 2009 - Mod if ied to work with Arduino by Gabr

Arduino And 5v relay module  The new KEYES 5V Relay Module is perfectly made for Arduino application. It has three pins, the VCC, GND and Signal. It can act as switch if the circuit and the load circuit have different supply voltage. It is commonly use if the load circuit is AC. It is a switch used to connect isolated connection from the circuit using a circuit signal. It has red LED that turns on every time the coil is energized or the signal pin has a high input. Commonly used in automation control circuit, it is actually a small Current to control a large current operation “automatic switch.” Arduino Connection with Relay Module Figure 1: Arduino Connection with Relay Module For the DC part of the circuit: Arduino digital pin 10 –> module pin S Arduino GND –> module pin – Arduino +5V –> module pin + AC Part of the circuit: On the AC side connect your feed to Common (middle contact) and use NO (Normally Open) to Lamp. It will get power when (S) i

What is ECE ? The branch ECE referrers to electronics and communication engineering. This stream is the top most  branches in an engineering. There are many opportunities for the students who join in this stream. Every engineering student must complete their project work to get their degree certificate. They have various options in choosing their project. For their purpose, the list of  ECE projects  for engineering students in various categories are listed below. ECE project ideas for electronics engineering students mainly involve in various categories like embedded, communication, solar, general electronics etc. ECE Projects Ideas for Electronics Engineering Students The list of ece project ideas for electronics engineering students in various categories are listed below. Communication based ECE Projects for Electronics Engineering Students Communication based projects  mainly include different technologies like Bluetooth, DTMF, RFID, GPS, GSM, PC, RF, Smart Card, Voice

List of ECE Projects Ideas for Final Year Engineering Students Propeller display of Time / Message –  Abstract Vehicle tracking By GPS – GSM –  Abstract Auto Intensity Control of Street Lights –  Abstract Automatic Irrigation System on Sensing Soil Moisture Content –  Abstract Programmable Switching Control for Industrial Automation in Repetitive Nature of Work –  Abstract Automatic Wireless Health Monitoring System for Patients –  Abstract Precise controlled Digital Temperature system–  Abstract Optimum Energy Management System-  Abstract Security System Using Smartcard Technology –  Abstract PC Based Electrical Load Control –  Abstract Secret Code Enabled Secure Communication Using RF Technology –  Abstract Density Based Traffic Signal System –  Abstract Line Following Robotic Vehicle –  Abstract TV Remote Operated Domestic Appliances Control –  Abstract Password Based Circuit Breaker –  Abstract Programmable Load Shedding Time Management for Utility Department –