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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    10 Questions

    how can we find out left and right on the LED...

    I bought some 940nanometer infrared LED emitters and tried it and didn't work. I was about to buy one prebuilt infrared blaster but gave up because I assume the Moto G4 Plus has some faulty sound driver somewhere along the way.

    Please help me....
    I have a doubt in connecting the IR to the
    3.5mm jack... where I have to actually connect the both strings...??? please help

    Hi Emil sorry for the delay in replying, I was bit caught up . so the two leds should be in put in series and the pins should be soldered to the left and right pin of the 3.5 mm jack . ignore the ground please check my images for the connection part

    i understand completely. What I am not understanding is in these 2 pics it looks as though the bare soldered pairs are braided together.

    826A6230-CBD0-4E16-8ACE-B09DAAB116A0.jpeg5AA031AE-7684-4B4D-A33B-745538D24C93.jpeg

    What I’m trying to understand is that after soldering the leds in sequence to the individual + & - you then twist both bare metal pairs together. Am I missing something?

    You just have o connect both leds in + & - series and then connect it to left and right pin of the aux pin

    0

    WE NO NEED THE LAST OR DOWN LAYER RIGHT?only the first 2 LAYERS WE NEED TO CONNECT THE IR LED RIGHT.????
    LOOK THIS PHOTO

    0

    Does we need a extra battery for it blaster.???will it work in one it led??

    Will it work on LYF WIND 7014 AND IN SAMSUNG DUOS??PLEASE ANSWER

    Hi Shajirr sorry for the late reply, It should work on most of the android handset However there is a 10% chance That it might not work . It worked on my Moto G however it didn't work on my sony .

    0

    Can we use wire instead of soldering the lead

    1518693574984-740721228.jpg

    Why we need 2 or led.if for receiving and sending then in REMOTE WHY THERE IS ONLY ONE IR LED.PLEASE ANSWER.

    As Leds have a + & - lead (leds don't work on reverse polarity) if you look at the wiring diagram i have connected the + lead of one LED to the - lead of the other led &
    - lead of the other Led to + of the other Led.
    So this way I can connect the two led without thinking about the polarity as other wise i will be little difficult to get the polarity correct

    1 more answer

    In remote you have a PCB which designated remote for the particular appliance.and What I have done over here is connected head
    jack with LED and as I had explained it earlier two led in series will help in managing the polarity

    6 Comments

    is because one is for receiving signal and one for transmitting signal

    Then in remote only one right?

    As Leds have a + & - lead (leds don't work on reverse polarity) if you look at the wiring diagram i have connected the + lead of one LED to the - lead of the other led &
    - lead of the other Led to + of the other Led.
    So this way I can connect the two led without thinking about the polarity as other wise i will be little difficult to get the polarity correct