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Showing posts from October, 2015

Program to interface Relay with LPC2148 microcontroller

A relay is an electrically operated switch or an electro-mechanical switch. Relays are used where it is necessary to control an electronic circuit by a low-power signal or where several circuits must be controlled by one signal. Principle:   Current flowing through the coil of the relay creates a magnetic field which attracts a lever and changes the switch contacts. The coil current can be on or off so relays have two switch positions and most have double throw (changeover) switch contacts. Program: Theory: A relay is used for electronic to electrical interfacing i.e. it is used to switch on or off electrical circuits operating at high AC voltage using a low DC control voltage. A relay generally has two parts, a coil which operates at the rated DC voltage and a mechanically movable switch. The electronic and electrical circuits are electrically isolated but magnetically connected to each other. In this R1 and R2 are the connection of relay made with LPC2148 and signal a...

Voluntarily post your electronics stiffs and posts on this blog

I have started a voluntarily blogging on my blog where any one can post useful information about your project and electronics knowledge with the others. As, i have been busy since a long time in my work, i am unable to post useful content for my readers. Hence, i have decided to add few authors on my blog which can contribute honorary to this blog and share your useful stuffs and content with world. Instructions to become author: - If any one is interested in becoming an author of this blog, he/she has to make a blog on Blogger.com and learn to use it. - If, then you have useful information in the field of electronics and embedded which you think can help other people too. You can voluntarily mail me on email ID- examcut2@gmail.com - I will add your profile picture and contribution details on my blog. Terms and Conditions: 1. One has to be adhered to the blog targeted content and what content can be shared. 2. No money or any prize will be granted to any one on posting a...