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Zrabra®

315/433.92MHz Learning Code Receiver Board Module AK-RS04

Digg(100) ( 9 Reviews)
       
US $5.69
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High quality wireless receiving module with great performance, this 315/433.92MHz Learning Code Receiver Board Module is a great choice for you!This receiver board module with small size is widely used in receiver wireless data, wireless remote, alarm system. The receiver board module has the features of stable performance, high sensitivity, high anti-interfere, high quality. And the receiver board module is with low power consumption, provides great performance. made of high quality material, the receiver board module is durable for long time use!Best choice for you, do not miss it!
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Product Description

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  • Specifications:

    • Operating Voltage: DC5V 
    • Operating Frequency: 315MHz / 433.92MHz
    • Receiving Sensitivity: -110dB
    • Size: 29 x 30 x 10mm/1.14 x 1.18 x 0.39in
    • Easy to set up
    • Stable performance
    • It's convenient for you to use
    • It can be used for a long time

    Details:

    Zrabra 315/433.92MHz Learning Code Receiver Board Module AK-RS04

    • Low power consumption, high sensibility of this Receiver Board Module

     Receiver Board Module

    • Easy operation & installation, the wireless receiving module is easy to use

    Receiving Module

    • The receiver board module can surely make convenient for your daily use

    Wireless Receiving Modul 

    • High quality material makes the receiver board module durable for long time use

    Size in Detail:

    Zrabra 315/433.92MHz Learning Code Receiver Board Module AK-RS04

    Application:

    • Remote control, remote measurement and remote sensing
    • Anti-theft alarm signal receiving and various remote controls for home-appliances

    How Do Remote Controls Work?

    • 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)
    • 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 easiest, with elbow resting on an armrest, to flip your wrist back and point the remote up at 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
    • Some high-end entertainment systems come with RF remote controls for expanded remote range. There are also IR-to-RF remote control converters that allow IR remote controls to extend their range through utilizing a RF translator that basically acts as a middleman. The RF converter relays the IR signal in RF waves to get it further. The converter on the component side reverts the RF signal back to IR so the component can understand it
    • 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 easiest, with elbow resting on an armrest, to flip your wrist back and point the remote up at 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
    • Some high-end entertainment systems come with RF remote controls for expanded remote range. There are also IR-to-RF remote control converters that allow IR remote controls to extend their range through utilizing a RF translator that basically acts as a middleman. The RF converter relays the IR signal in RF waves to get it further. The converter on the component side reverts the RF signal back to IR so the component can understand it

    Package Included:

    • 1 x Receiving Module


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Average Customer Review:
  ( 9 Reviews)
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tao13

from (romania , bucharest)

Bought this item on

06-28-2011

 
niec , simple and good product
16:30:12 06-28-2011
very simple programing with an arduino

don't have one

i use in a project for my house alarm system , security and open door/light. it works fine at 315mhz frequency. nice product and siply to use and program with an arduino mega 1280 or 2560.

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Shelby West

Bought this item on

05-24-2011

 
Works well
00:00:00 05-24-2011
If you need to control a lamp remotely, this is an excellent choice. Installation is very easy, and I set it up in about 2 minutes.
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Nick Clausen

Bought this item on

05-02-2011

 
Works exactly as advertised
00:00:00 05-02-2011
Works exactly as advertised. The range isn't great, more like 30 feet but does exactly what it says it will do.
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William Gann

Bought this item on

04-25-2011

 
Great Product
00:00:00 04-25-2011
Use it for my bedroom fan which I turn on when I go to sleep and want to turn off early in the morning when I become too cool for comfort: Don't know how I did without it up to now! Great Product! And inexpensive!
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Nicholas Stein

Bought this item on

04-20-2011

 
Blows the others away
00:00:00 04-20-2011
I have tried other similar products from the box stores, which all were terrible. They only worked if you were 2 feet away. This remote works great!. It works through walls and every time.
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Bethania Espinoza

Bought this item on

04-05-2011

 
Excellent product
00:00:00 04-05-2011
Excellent product. Would recommend. <br/>Disappointed channel A or B not selectable but this feature would cost a lot more.
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Adrian Fagan

Bought this item on

03-31-2011

 
Works great most of the time!
00:00:00 03-31-2011
I bought this remote control because we have woods directly behind our house and at night when we let our dogs out they like to run into them to use the bathroom. With this wireless remote control I was able to put a floodlight out in the yard and shine it into the woods to light it up when we take them out. I used double sided tape to mount the switch to the door so its easy to use without having to constantly plug/unplug an extension cord. This switch works 99% of the time, the other 1% sometimes you have to hit the button more then once to get it to work. 'm using it at a distance of about 30 feet from the receiver unit, But it really does work well, just remember to let it hang with the outlet side facing down to keep water out as that seems to be the biggest gripe. But for my purposes it works well.
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Brandon Jean

Bought this item on

03-23-2011

 
Remote Power Cutoff
00:00:00 03-23-2011
The product is everything it was advertised to be. It is a remotely controlled AC power switch. For what it does, it functions flawlessly. I not only can recommend this product if you are needing a remotely controlled AC power switch, but I have purchased another since my original purchase.
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Bruce Yamamoto

Bought this item on

03-08-2011

 
Exactly right for the job - good range
00:00:00 03-08-2011
I use to control a light outside the home and the range is excellent. Works well, nice and simple design.
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