Universal IR Remote Control

Contributor: 
Deepesh Verma

With technological advancements in consumer electronics, nowadays almost every appliance in our home is remote controlled.

Managing a different Remote for TV, AC, Fan, DVD, DTH, etc., is quite difficult. What if we could have only one remote capable of working as a dedicated remote for any appliance any time.

Presented here is such a device based on Arduino that can act as Remote control for any appliance when needed.

Home Automation using Arduino and MATLAB

Contributor: 
Saddam khan

In present time home office appliance controlling is common thing.  Today for controlling home/offices appliances, machineries in companies/industries uses different types of automation systems like DTMF controlled, GSM controlled and many others. So here this project is made for interfacing MATLAB (Graphic User Interfacing) and Home/office/industries automation using Arduino and MATLAB.Here MATLAB is interfaced with Arduino through serial communication. In this arduino is burned with an ARDUINO IO (Also Known As: "TETHERED" MATLAB SUPPORT PACKAGE FOR ARDUINO). This package allows using an Arduino connected to the computer to perform Analog and Digital Input and Output, (and command motors) from MATLAB.

Real Time Clock with Temperature using Arduino

Contributor: 
Saddam khan

Real time clock is a digital clock which display real time on 16x2 LCD display. Here in this circuit we can also set alarm and time. The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I²C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.

TV Remote Controlled Robot using Arduino

Contributor: 
Deepesh Verma

Basically, the Remote controls of Electronic Appliances be it TV, DVD, etc., work on IR communication principles. They transmit a code, in the form of IR pulses which is decoded by the reciever to carry out a specific operation. Each key has been assigned a specific code based on a certain standard protocol developed by the manufacturer.

There are number of protocols that have been developed till the date by various manufacturers including Sony, Philips, etc. Some of common and widely used protocols are Sony SIRC, Philips RC5/RC6, NEC, etc.

DIY Prototyping Board with 3.3V, 5V, 12V and -12V Built in Power Supplies

Contributor: 
Fabstream

Prototyping is a useful and powerful method in electronics which lets us analyze a circuit before using it in a system or turning it into a product. In this process we may need a single supply or multiple supplies to power the circuit depending on the type of the application. For example, an op-amp circuit may need a symmetrical supply such as +12V and -12V or a logic circuit may require both 5V and 3.3V at the same time. Some applications may need three or more. This means we should have a bench supply with multiple outputs or multiple bench supplies in the environment. This may not be always possible. This DIY Prototyping Board is designed to provide all the most used supply voltages that a designer will need during prototyping a circuit. The switching power supplies on the board output 3.3V, 5V, 12V and -12V rated at 1A independently. In addition those there are two precise voltage references at 5V and 2.5V provided especially for op-amp based applications.

Google Glass: See More Than What You Can See

Written By: 
V.Shalem Pravas

We had all imagined what the future would be like in our childhood, picturing pretty intense technology like flying cars, houses floating in the air, holographic telephones, etc. But we look at the world now and see those ideas actually come to life. One of such devices is Google’s latest project, “Google Glass”. What is Google Glass? What does it promise to do? What are its salient features? We will find out all this and more as we go further.

In simple terms, google glass is a computer which you can wear on your head the same way as in you would wear a set of spectacles, which comes with an Optical Head Mounted Display (OHMD) working on a class of technology called “Augmented Reality”. 

How to Get GUI on Raspberry Pi

The Raspberry pi is a single board minicomputer which comes without input and output units, but with connectors for them. The board is designed to be easy to use and available at the least possible price. The main intention of releasing such a board is to provide computer education to the remote schools where the PCs are not very commonly used. The idea is to use the TV screen as the display unit for the Raspberry pi board and hence converting the TV into a computer.   

The board is hence provided with a RCA connector which can be used to connect it directly to a TV screen which is based on PAL and NTSC standard. The board also has a HDMI connector output which can be used to connect the board to a HD TV, but there is no VGA connector.