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Zrabra®

315MHz / 433MHz Wireless Transmitter Board Module 110.F-D

Digg(100) ( 8 Reviews)
       
US $3.99
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What you are viewing here is a 315MHz / 433MHz Wireless Transmitter Board Module, if you are looking for a reliable wireless transmitter module, this one is a smart choice for you!The wireless transmitting module features 315MHz/433MHz operating frequency. 10KHz modulation rate. ASK modulation, powerful in functions! Small in size, low in power consumption, the wireless transmitting module is great in performance! The wireless transmitting module is specified as preferred components in remote control garage, roller curtain, door locks, remote sensing, telemetry, industrial control and wireless security alarm industry.Small item with great use, the wireless transmitting module is a must have for you!
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Product Description

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  • Specifications:

    • Nominal Voltage: DC3-12V
    • Operating Current: 15mA 9V
    • Operating Frequency: 315MHz/433MHz
    • Means of Communication: Single
    • Modulation Rate: 10KHz
    • Modulation: ASK (limit)
    • Operating Temperature: -10 ℃ ~ +60 ℃
    • Input Signal: TTL level
    • Radiated Power: 20mW 5V
    • Launch Distance: 500 meters
    • Encoding Type: Fixed code
    • Characteristics: Small size, low power, medial distance
    • Dimensions: 23 × 32mm/0.90 x 1.26in

    Details:

    • Zrabra 315MHz / 433MHz Wireless Transmitter Board Module 110.F-D

      315MHz / 433MHz Wireless Transmitter Board Module, great in performance, powerful in functions

     

    • Transmitting Module

      The wireless transmitting module has the features of stable performance, high sensitivity, high anti-interfere, high quality

     

     

     

    • Wireless Transmitting Module

      Made of high quality material, the wireless transmitting module is durable and reliable for long time use

    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

    How to Build a Wireless Remote Control:

    Transmitter Board Modul

    Simple wireless devices use various components to activate an infra-red signal that broadcasts to a receiver box, allowing the user to program the control. Basic wireless remote controls simply turn a device on or off. Components used in a wireless device can be found at most electronics outlets and hobby shops. Specialized retail establishments have pre-packaged kits that can be used by a beginner. At the very least, even experienced electronics enthusiasts use pre-made remote control boxes due to the simplicity of their design, including ergonomic support. The structure of the wireless remote control provides a builder with not only knowledge but the reasons a receiver can be controlled by the device

    • Open the remote control housing and place a push button switch on the side. In the upper right corner of the housing, fasten a 3-volt battery holder. Be sure enough room is available to install and remove the battery
    • Run a wire from the push button switch and link to the 3-volt battery holder at the negative connection. Attach another wire to the push button switch and lead it to the Meg 1/4W resistor and the NPN silicon transistor. Run a third wire from the Meg 1/4W resistor and attach it to the 22K 1/4W resistor and and the PNP silicon transistor
    • Position the infra-red LED on the front of the housing. Attach the LED and run wires to both transistors. From the 22K 1/4W resistor, run a wire to the C220.01uF 16v ceramic disk capacitor. Run another wire between the NPN silicon transistor and the ceramic disk capacitor
    • From the positive connector on the 3-volt battery holder, connect a wire to the PNP silicon transistor. This will allow for proper current flow in a closed circuit. Ensure the push button switch is positioned to "off" and place a 3-volt battery into the holder. Close the remote control housing
    • Point the remote control at a receiver, making sure the LED on the control is aimed at the LED of the receiver. Push the button and the receiver should power on and off. To adjust the receiver to be programmed, point the remote control and hold down the push button switch. Adjust the pot or taper on the receiver

    Package Included:

    • 1 x Wireless Transmitting Module

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Average Customer Review:
  ( 8 Reviews)
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Daniel Shearer

Bought this item on

05-17-2011

 
Perfect!
00:00:00 05-17-2011
This device works first time every time. I tried a dfferent brand before and they were junk. This is the one to buy!
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John Harris

Bought this item on

05-04-2011

 
happy with it
00:00:00 05-04-2011
Using it to control a box fan and it works fine-- not using it from a long distance away so cannot attest to its range but it works every time from a 15 foot distance. I am thinking of buying another for other uses. Would love to see a 2 for 1 sale on these.
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Casey Loughrin

Bought this item on

04-27-2011

 
Best deal going
00:00:00 04-27-2011
We purchase hundreds of these every year. Untill now, we were going to the local hardware stores. While slightly more expensive, you can see the quality of these.
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Lambert Pascal

Bought this item on

04-19-2011

 
Pretty good
00:00:00 04-19-2011
Works perfectly, even through a few walls, but I wish it came on a key ring.
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Blake McClintock

Bought this item on

04-10-2011

 
works great
00:00:00 04-10-2011
This product works great! I bought it for my fountain which is at the very back of the yard and is hard to get to. I used to have to go out and plug it in when i wanted to run it which was a real pain. Now that I have this I can turn it on and off from inside the house! I am using it at a distance of about 40 yards. You need to have it be in a line of site for it to work. The reason that I only gave it 4 stars is that the cord is very short on the unit. It would be nice if it was a few feet long.
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John Nelson II

Bought this item on

03-31-2011

 
Works great! Costs little!
00:00:00 03-31-2011
I am amazed how well this product works and how little it costs! I use it to run a ceiling lamp for which I can't reach the switch. Love it.
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Melissa Hill

Bought this item on

03-08-2011

 
The best I've ever used
00:00:00 03-08-2011
I have 4 different types of remote switches. I use them to operate shopvacs in the garage piped into the house. This is by far the best. Mainly because there is only one button for on and off, that's a huge plus. Secondly because the transmitter is strong, durable, has a strong key chain connection, and has great range. I have 2 on different channels of this unit and I love them.
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Connie Bratcher

Bought this item on

02-22-2011

 
awesome
00:00:00 02-22-2011
Ordered this based on the reviews about the distance this can be used from and it is as advertised. I'm able to turn on a light in the house from the end of my driveway (about 50 ft) so now a light is on when I enter. And it even works when I'm not in direct line of sight to the controller - awesome!
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