Visiting our blog now? Well, you could have missed a few interesting posts. Here we bring you “Snoopy” he will dig the archives and bring you the complete list of old posts in one place. Check out now what Snoopy found from May 2013.
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“Education is Everything” – you might see this as our tag line, not just as words. We Propel Steps get all the inspiration from that strong belief. Through education, we can bring many positive changes. Wisdom, Humanity, Environmental issues, Fair use of Science, Good governance,Prevention of arts, Encouraging creativity… The list is big where your support is needed.
We do not need money. Just your support and a few mins time whenever feasible for you. Help us to bring a change! Only You can make this reach millions of people.
We are good at many things, skills that we possess naturally or developed over a period of time. When we share it with others, we become the provider of knowledge and help enabling others.
On the other end, every day we learn something new, get educated from some sources.
Our areas of interest are wide. But Education is the common thing we find in everything we see in life.
We believe Education is not just limited to, schools anymore, if we are determined to learn and share knowledge this modern world has plenty of opportunities.
We have made our Forum “Propel Steps” – here. Where you can share anything you want to share with the world. Ask anything you wish to know about. Not everyone is good at Googling to learn, also internet cannot self suffice. It’s all about knowledge/info reaching the right people who need them. We connect you with millions of school kids, students, teachers, professionals, activists, etc.
Share your links on our forum. Just a few clicks, you can share even anonymously.
We have only one objective, education can be liberal and can be boundless.
We do not need money. Just your support and a few mins time whenever feasible for you. Help us to bring a change! We do not have millions of Dollars to to spend, but we have IDEAS and HOPE. Only You can make this reach millions of people.
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What is inside it? – Basic Version
How it actually works? – Detailed Version
Generally, there are two types of remote controls: infrared (IR), and radio frequency (RF). Infrared remote controls work by sending pulses of infrared light to a device, while RF remote controls use radio waves in much the same way. Pragmatically, the biggest difference between the two is range. IR remote controls require a clear line of sight to the receiving device and their range maxes out at about 30 feet (9.14 meters). RF remote controls can go through walls and around corners, with a range of roughly 100 feet (30.48 meters).
Do you want to see the Infrared light from your remote.. So simple.. Use the camera in your mobile / a digital camera. Point the remote and press some buttons, you can see the light flashing.
Most home entertainment components such as stereos, televisions and home entertainment centers use IR remote controls. The remote contains an internal circuit board, processor, and one or two Light Emitting Diodes (LEDs).
When you push a button on a remote control, it transmits a corresponding code to the receiving device by way of LED infrared pulses. The idea is somewhat akin to flashing an SOS signal, but instead of letters, the flashing LED light is transmitting a series of 1s and 0s. The “1” might be represented by a long flash, while “0,” a short flash. A receiver, built into the component, receives the pulses of light and a processor decodes the flashes into the digital bits required to activate the function.
Along with the desired function, remote controls must also piggyback other data. Firstly, they transmit the code for the device they are controlling. This lets the IR receiver in the component know that the IR signals it is picking up are intended for it. It essentially tells the component to start listening. The function data follows, capped by a stop command to tell the IR device go back into passive mode.
Some remote controls can be very finicky, requiring the user point the remote directly at the component. This is due to a weak transmitter. Changing the batteries can help, but if the transmitter itself is poor, pulses are transmitted in a narrow beam. More robust IR transmitters, and remote controls with double LEDs, transmit broader beams that allow the user to point the remote in the general direction of the transmitter.
Sometimes it happens that a recliner or favorite spot on the couch does not have a clear line-of-sight to the entertainment center or television. Often a coffee table or some other object is in the way. When this happens, we find ourselves raising an arm, trying to control the object “around” the device. This can get quite annoying, but there’s an easy alternative.
Since light bounces off objects it is sometimes more convenient to point remote controls towards a flanking wall or even the ceiling to change a channel or send a function command. The light will bounce off the surface of the wall or ceiling and scatter. If you bounce it at an advantageous angle, the scattering light will reach the component. Often it’s easier, with elbow resting on an armrest, to flip your wrist back and point the remote up on a wall behind you. This can work quite well, even though the remote is pointing in the exact opposite direction of the component. Once you find the easiest sweet spots around the room from which to bounce your signal, you can use these instead of struggling with trying to get around your obstructed line of sight.
Garage door openers, alarm systems, key fobs and radio-controlled toys use RF remote controls. RF remote controls work essentially the same as IR remote controls, except they use radio waves. As stated, radio waves can also penetrate walls and go around objects and corners, making RF arguably more convenient than IR.
If you have been overrun by remote controls, you might consider a master universal controller. Low-end universal remotes, available for about 10 US dollars (USD), will allow one to control several devices. However, original remotes might still be required for accessing and controlling an advanced component features. Some high-end universal remote controls feature LCD screens and are more like electronic pads than common remote controls. These universal master controllers will eliminate the need to use original remotes, but may require some ramp-up to learn.