How to Make an IR Blaster

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Introduction: How to Make an IR Blaster

About: My profile is about making most use out of something and optimum utilization of resources available,dedicated to D.I.Y (Do it yourself) Projects.Easy Hacks,DIY Experiments, Myth Busters & More

Hi Everyone,

In this Video I'm Trying to make an IR blaster.

An infrared blaster (or IR blaster) is a device that emulates an infrared remote control to autonomously control a device that is normally controlled only by remote control key presses. ... Another common use is to extend infrared signals in order to place remote controlled products behind closed doors.

I'm going to Make a IR blaster for Smartphones which will connect to your device using a 3.5mm Jack

This a Myth-buster instructable to prove that does the IR blaster for the phone work?

There are lot of videos regarding this stating it works,some say it doesn't work.

Lets find out if there is any truth or its just a Myth.

Step 1: Parts Required

1x 3.5mm Aux cable ( I had broken one lying down so I used that, You can alos get a standalone 3.5MM which can be easier

2x IR leds

small Piece of 6mm heat-shrink tubing (optional)

You will need Hot glue gun & a Soldering Iron

Step 2: Understanding the Led

I'm sure if you have dealt with leds then you will know hot find out anode & cathode. Nevertheless

I will tell you how to find out alway the long lead is the Anode(+) & the short lead is the cathode(-).

For reference check the images

Step 3: Connect the Two Led in Series

Connect the two led in series where in positive(+ Anode) of led 1 should be connected to the negative(- cathode) of led 2 & positive(+ Anode) of led 2 should be connected to negative(- cathode) of led 1.

Check the image for reference.

Step 4: Connecting the Leds

Please check the Image on how to connect the Led to the 3.5 mm Jack

Step 5: Final Finishing

After you have soldered it it should look something like the image shown.

You can use some heat shrink to to give good finishing I did't feel like giving a finishing as this was just a test

Video

Step 6: Download the App

In order for this to work you the ZAZA remote App (https://play.google.com/store/apps/details?id=com....)

go to advance settings

Increase the Macro key sending gap to 1000 MS & turn on the audio reversal

TEST RESULTS

test results prove that it works However there are limitations. Like range & audio Drivers of the phone.

This is DIY IR blaster is not compatible with all the Handset if you have good sound driver in your phone it will work. For some reason it didn't work on my other sony phone.

My suggestion would be to try and make one and check if it works and then if you want you can buy

from the link

https://www.banggood.com/5Pcs-Portable-3_5mm-Andro...

https://www.amazon.in/gp/product/B01MS3ZTU7/ref=as...

You can check My Youtube Video for the making.

https://youtu.be/3-yvT13t8zU

Thank you......

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    73 Comments

    0
    Shajirr
    Shajirr

    Question 4 years ago

    Can we use wire instead of soldering the lead

    1518693574984-740721228.jpg
    0
    Albyy
    Albyy

    Answer 9 days ago

    Yes, as long as the LED points to the appliance while in operation

    2
    airl1
    airl1

    3 years ago

    Hi!
    In the product sold, the head of the jack is made of plastic. Do not need all contacts?
    Regards
    Arik

    20180118144243_85840.jpg
    0
    doppelbucket
    doppelbucket

    Reply 4 weeks ago

    If you followed the pictures, the LEDs are connected to the L and R lines. This is the plugs tip and the ring immediately above that.

    Were there another ring before the sleeve, it would be the microphone line (or gnd and microphone could be swapped)

    In the product shown, the mic and ground lines are effectively shorted. This is OK as we don't use them, and it is compatible with the original microphoneless plug pinout

    0
    JoaquinT-3
    JoaquinT-3

    Reply 23 days ago

    Can I make with USB-C.?

    0
    JoaquinT-3
    JoaquinT-3

    Question 23 days ago

    Can I make with USB-C.

    0
    Sifat_Tahsin_Azad
    Sifat_Tahsin_Azad

    Question 2 years ago

    What if I don't have hot glue gun and soldering iron? Is there any backup?

    0
    doppelbucket
    doppelbucket

    Answer 4 weeks ago

    Yes, use a jack plug that already has wires attached. Identify the L and R lines and twist each onto the K1A2 and the other to K2A1

    Seriously, just get a soldering iron.

    0
    MarkE181
    MarkE181

    4 years ago

    Just so everyone knows this is a spoof, it will not work for 2 reasons.
    An audio output would not provide the logic output to send any IR singnalling to actually function.
    The wires are twised and shorted, it will not do anyhting.

    0
    doppelbucket
    doppelbucket

    Reply 4 weeks ago

    They might be twisted and shorted /on yours/. I've not tried it, but your comment on lack of logic levels is sound.

    However, I assume the LEDs are driven in limiting mode, whereby any voltage.over a certain amount will produce a HIGH, rather than being driven linearly.

    0
    UrielT4
    UrielT4

    Reply 4 years ago

    It didn't work for me with the app posted here, but it did with "DSLR Remote" to control my DSLR's shutter. *It works!* I just saved 20 bucks on an original remote!

    I still have to find an app that lets me use it with a TV, as the Audio Reversal option keeps disabling itself after I activate it, but I didn't believe it'd work either, and I'm so glad it did.

    I have a Moto G4 Plus, btw.

    why u don't use ground channel....and if i reuse led from an old remote control is it the ir will workable? plzz reply i have to finish my assignment about em wave.. i need ur help sir

    0
    url.leoo
    url.leoo

    Reply 3 years ago

    just leave the ground without any connector. it works without any problem, and really glad with tutorial from this website.

    0
    doppelbucket
    doppelbucket

    Reply 4 weeks ago

    Yes, but this doesn't explain /why/ one can't use the ground line.

    0
    JambanT
    JambanT

    Question 4 years ago on Step 3

    Why need 2 diodes/led?

    0
    shehzadhussian
    shehzadhussian

    Answer 3 years ago

    Because we send and received signal

    0
    doppelbucket
    doppelbucket

    Reply 4 weeks ago

    No. This is wrong. Both LEDs are transmitting. There is no facility to receive in this particular circuit

    0
    doppelbucket
    doppelbucket

    Answer 4 weeks ago

    To account for any asymmetry on the audio output, and to essentially drive the LED differentially, getting double voltage potentially versus referencing it to ground.

    0
    dawson.lobo
    dawson.lobo

    Answer 2 years ago

    It is really because of the AC output as during any of the 2 cycles at least one led will work

    0
    kritikav2012
    kritikav2012

    Question 2 years ago on Step 6

    Do i have to put that jack into my phone where the space is provided for the connection of ear phones