Introduction: DIY LED Projector V 2.0

Picture of DIY LED Projector V 2.0

Previously I posted instructable on how to make LED HD
projector that you can see here-

This was my first attempt to make projector then I more improve it and add many other features.

So I upgraded my projector. Many new features I added in this version that was needed for professional look.

What’s New –

1. Keystone correction feature added.

2. Now my projector more brighter.

3. New box design looks smaller.

4. Add internal speaker.

5. Add relay module for auto on/off LED light with my LCD remote.

6. Batter box finishing look like company product.

7. Add new menus buttons.

Step 1: How to Add Relay Module?

Picture of How to Add Relay Module?

I bought 5v relay module from @ 190 /- INR. I connect it with my 5v lcd controller pan drive power source and output terminal (COM and NO) connected with LED light driver and 240v power source. Now when I on my LCD controller with my remote the relay get triggered and LED light on automatically.

Step 2: How Setup All Things ?

Picture of How Setup All Things ?

Step 3: Finshing

Picture of Finshing

I use rexine for finishing touch which is use for making seat covers.

Step 4: Results in Completely Dark Room

Picture of Results in Completely Dark Room

Results In Completely Dark Room From 10 Feet Distance and Image Size Approx 100 Inch diagonally.


kehaldoshi (author)2015-11-05

Box ka kya size chahiye ?? Apke lenses ki size kya hain ?

Ujash (author)kehaldoshi2017-06-13

380×180×130 inside measurements outside it depends on plywood thickness

JitendraR2 (author)kehaldoshi2015-12-08

7" vali lcd hai sabhi kit maine ebay se mangvai hai

lekin lcd ka cabal bhi bahut chota hai

JitendraR2 (author)kehaldoshi2015-11-06

7" vali lcd hai sabhi kit maine ebay se hai

JitendraR2 (author)kehaldoshi2015-11-05

7" vali lcd hai sabhi kit maine ebay se hai

hhassnain (author)2016-01-17

can i use simple magnifying glaas instead triplet

Ujash (author)hhassnain2017-06-13

Yes but size will be affected and screen corner areas are curved

kehaldoshi (author)hhassnain2016-01-17

Yes you can use but projected image will be not good.

hhassnain (author)kehaldoshi2016-02-05

does it affect size and where i get it cheap

vinz3nt (author)2016-03-13

Great project!

Which LED color is preffered, I can find wae white, white and Cold white. Which one produces the best colors?

Ujash (author)vinz3nt2017-06-13

6000k to 7000k color temperature

Ujash (author)Ujash2017-06-13

Cool day light

kehaldoshi (author)vinz3nt2016-03-13

Cold white led chip.

vinz3nt (author)vinz3nt2016-03-13

warm white instead of wae white!

RajeevK27 made it! (author)2016-08-12

Dear Kehal,

Please let me know how can i get my display more brightness as it is not satisfactory after using 100W led chip..??

Ujash (author)RajeevK272017-06-13

You should use 200 watts led

wasima36 (author)2017-03-22

5v relay kaise use kiye thoda connection ki pic dikha do

kehaldoshi (author)wasima362017-03-23

I connect it to lcd controller with 5v powe supply.

Nura017211 (author)2017-01-28

Vai apna power kayse supply kiya pls say it...

ponnaiah (author)2016-11-17

Bro please suggest me how to make the same type of projector. Msg me once I will call u bro. I want the instructions how to make it. 9900031663. Please help me

kehaldoshi (author)2016-09-14

Thanks for writing to me . Sorry I can't make for you this time. In future if I start to make projectors I will contact you. One more thing we can't use it in day light..

DavidW536 (author)2016-09-13

Dear Kehal Doshi,

My self Sekar from Chennai (Tamil Nadu) for the very long time onwards am planning to buy projector at low cost but i can't and finally i have seen urDIY LED PROJECTOR V2.0 video on youtube am very much impressed actually my room size is 11.5*10 sqft so i planned "45-50" inch screen yours is 100" inch so i decided to buy ur projector why should i get buy all stuff and to fix it by myself it's waste of time and i don't have such knowledge too better this way is good.

But i have a question for u, if i buy this projector how long will i use it for a day bcoz right now i have attached my 32'inch LED TV to my PC so i use it for 15hrs a day some times it would be 18hrs too. I'll come to the point that's the way, can i use your projector as my pc display if it is possible can you tell me how long time will it work.

Basically in the market the projectors lamp will give 2000 - 6000 hrs so like that in ur projector how long will it work. pls mail me your answers to this id I'll buy your product by ur handmade through cash on delivery.

Don't mind if I asked u some idiotic questions if it is I apologize for it.

Khanahtsham (author)2016-08-24


Can you send me all staps and equipment which i have to use for the projector on my email

AnirudhK14 (author)2016-06-08

Can you please mail me the whole instructions/program at

VivekB33 (author)2016-04-28

Hi Kehal,

I have gone through both the instructable. Both look good and amazing. However, if you see the cost of the Second box with all the accessories mentioned/recommended - its coming around not less than INR 22,500 ($ 370).

The New Branded Compact Projector in the market starts from 30K (you only mentioned that). What is it in this DIY PJ, that is worth making it at 22K (or more if something goes wrong).

Also, what is the projected life of this PJ? What is the continuous running Time?

Moreover, the instructions are not step-by-step. Looks like you are marketing the stuffs, that are available on Ebay under Globalibay (

Hope you will clarify and help members follow it correctly. Thanks for your efforts.

sanjeev24 (author)2016-04-07

hey 3 cheers nice work friend,can u plz give me the details of ur pj's wooden box size

or can u make and courier me a same wooden box like urs .i will pay u rs-1000/- cod.plz let me know my email id is

JitendraR2 (author)2016-01-28

box chahia

anupamdubey (author)2015-12-18

iwant to buy full accessories of diy projector ver2.0 . send me your email at

mayurh (author)2015-12-03

really nice effort. and good post. your new version looks more appealing. cheers!!

I m going to make mine very soon (have added all the materials in my ebay cart, just need to click on buy button. ;) )

Although I have few queries, would be really happy if you can answer them.

1. how did u corrected the keystone in the new version, you haven't given any instructions in this post.

2. as you said this new version is brighter, did you do any tweaks with the original source or bought a more powerful source?

3. can we have a demo of the lcd screen assembling and its controls as in brightness or colour correction and the inputs. Is it the best or are there any flaws?

4. Also does LED light source fade in time? How much time has passed since you made this? Is it still functioning the way it should. Are there any heating issues?

Too may questions to you to ask, but these are the primary ones. :)

IsidorosP (author)2015-11-26

Do you have the same triplet lens with version 1?
Thank you... ;)

kehaldoshi (author)IsidorosP2015-11-27

Yes I used almost same components that used in previous version.

IsidorosP (author)kehaldoshi2015-11-27

I ask because in some foto I think that you have other triplet.

JitendraR2 (author)2015-11-02

rathod jitendrasinh

himmatnagar gujraat sabarkantha

kehaldoshi (author)JitendraR22015-11-03

Oh its very near from my place. I m from Dungarpur Rajasthan.

JitendraR2 (author)kehaldoshi2015-11-05

to box ka kya kare

JitendraR2 (author)kehaldoshi2015-11-03

to box ka kya kare

JitendraR2 (author)2015-11-01

link dena muje kharidna hai

kehaldoshi (author)JitendraR22015-11-02

Where from u r ?

JitendraR2 (author)kehaldoshi2015-11-02

rathod jitendrasinh

himmatnagar gujraat sabarkantha

JitendraR2 (author)2015-11-01

muje vo wooden ka box banaya hua lena hai milega

kehaldoshi (author)JitendraR22015-11-01

Yes its cost around 1000/- I can list it on ebay so you buy this.

MadanM7 (author)2015-10-11

Wt are the measuremets of the box and how did u add remote to it and keystone effect ?

rajeevm (author)2015-09-02

Anyone can suggest anything regarding blinking of led m using 150 watt led with heat sink n three cooling fans r there to avoid heating problem it was working well n good for one week n then suddenly this problem can anyone advise me regarding this please

anayak5 (author)rajeevm2015-09-22

you have over heating issue for 150watt/200watt led these things are required

1. 200w heat sink its available on ebay

2. high speed diy projector cooling fan

3. proper thermal past

Thermal Conductivity (W/m °K): 6 W

Working Temperature:- 50 to + 300 degree

your Temperature should be under 38 degree otherwise your led burn shortly and not run long time

kehaldoshi (author)rajeevm2015-09-02

I think one of you led chip got damged.

rajeevm (author)kehaldoshi2015-09-02

Ok sir any reason behind it so that we can avoid it in future

kehaldoshi (author)rajeevm2015-09-08

Use proper power deiver and high quality heatsink with fan.

rajeevm (author)2015-08-13

Hello man i am having problem with lcd controller kit as it is not reading anything from pen drive and getting automatically off can u no hdmi reading n av reading only usb reading but getting stuck please guide me in this

tomatoskins (author)2015-07-06

What LCD and driver did you use and how did you set that up?

kehaldoshi (author)tomatoskins2015-07-06

I used N070ICGLD1 LCD. Please visit my previous instructable where you will find all details. This is upgraded version of my projectir.Thank you.

About This Instructable




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