how! a infrared 'transmitter'

[sourav]

i want to use a remote controller of a device from another room which is far away.

is their anyway? please sugget.

i think we can take a infrared receptor & infrared bulb. I know infrared receptors are available at stores. We have to make make a circuit through which we can utilise this to control other devices.

e.g-:> I mean I have tatasky located in one bedroom with the tv. it is connected to computer through rf(cable line) and to the tv with audio video channel available. I want to control the tatasky while watching it on tatasky.

I hope u understand my question

pls help

[iMav]

setup a mirror arrangement to relay the infra red .... but i doubt the possibility to achieve somehting like this ...

[abinesh]

bro... i dont think you can use IR for transmission from aroom to another. its usually point to point communicator and from room to room ... no way !! yea... may be mirror arrangement might work ( im not sure ) .

but you could use a bluetooth transmitter ... the ics are available ... but this project migt turn out costly !!

[sourav]

think i press a switch on the remote of tatasky while sitting near the computer. By having a receptor in that room, connected to a a circuit which boosts the signal and sends that signal (through wires) to the room where it is located. And keeping a infrared bulb infront of the the tatasky, so that when i press the key to change the channel, it transmits the data to that bulb located infront of the tatasky can change the channel by transmitting the same signal.

What do u think ???

oye help karo

[indian_samosa]

I actually wanted to setup something similar.I have DishTV in the drawing room and have the audio and video cables from the Settop box to the tv tuner in the bedroom.I think the following might work ....

You can get a infrared transmitter the same as the one in your remote and place it directly infront of the Settop box's infrared receiver.Now connect the wires from the transmitter to the infrared tarnsmitter on ur remote.I am talking about a parallel connection.It should work I suppose and will not need any extra boosting.What basically u r doing is extending the remote transmitter to beyond its original length.

Now I havent tried it ..... But wish to in the future.

I ll try it on monday .....lets see

[iMav]

^^ better than that .... remove the ir transmittter frm the remote ... connect to a wire and place it in front of ur set top box ....

[sourav]

now think again,

it will need electricity to provide reception of remote signal and transmit it to the bulb.

so, their is a need of circuit system. i want to know on how to make that circuit.

[iMav]

it will work on the power by the remote only ....

[sourav]

i don't want to open the remote and place.

think i press a switch on the remote of tatasky while sitting near the computer. By having a receptor in that room, connected to a a circuit which boosts the signal and sends that signal (through wires) to the room where it is located

i want remote and the receptor should not be connected by wires

[indian_samosa]

Originally Posted by iMav

^^ better than that .... remove the ir transmittter frm the remote ... connect to a wire and place it in front of ur set top box ....

yup that also will do .... But Khali-pili why to remove the nice transmitter on the remote !!

[sourav]

^^ i agreehow can u remove it from it! (don't ans this question)

we need a ciruit

help me plz

[iMav]

circuit for what dude making a power ckt for a ir tx wont help at all

u need to relay the signal coming from the remote

[infra_red_dude]

first of all you can just take a transmitter and connect it to the receiver by a simple wire. you require a modulating circuit to convert the IR signal to electrical signals and then back to IR signals. this aint an easy job man! i don't think working that much wud be viable. IR needs line of sight. a major drawback. this is the reason why IR is not popular (yeah mebbe even me!! )

[sourav]

i mean that only

i want to relay signal but i don't want to open the remote make relay connection. So, their is a need of a circuit which accepta the signal and send to the bulb for this it also need electricity

so whatever u can call it but i can't open my remote as it will make the remote look bad and it will not be allowed by my family and this will also hamper warranty

@infra
but i have to use this all remote suport IR only

[iMav]

nahi chalega bhai ... ir relay cant be done at home ....

[sourav]

plz help

[Pathik]

the best option wd be to use an array of mirrors.. Position them such that the signal get reflected directly onto the receiver.

[Pathik]

the best option wd be to use an array of mirrors.. Position them such that the signal get reflected directly onto the receiver.

[sourav]

nothing is impossible

just changing of the IR signals are done in tv on anything which uses remote

so, their should be a wayout, i want just a circuit diagram

off topic
are there any electrical engg or students here

[Kenshin]

get the ir signals modulate them use a RF transmitter ....receive the RF signals by a receiver demodulate...giveem to the IRLED simple....will work in 200 mtr range.....will cost u 600 bucks tho.Am a electronics engg student...rt now am doin a project on transmiting temperatures from 6 different points thru a microcontrolled RF transmitters to a PC.

[infra_red_dude]

you don't need to open up the remote. you need to get a set of IR transmitter and receiver. then you need to wire them up wid 2 circuits. the receiver is connected to the circuit which converts IR signals to electrical pulses. this sits near ur computer. the output of this circuit goes to the input of another circuit which converts electrical signals to IR signals connected to the transmitter which sits in front of the IR receiver on the set top box. yes, the whole circuit will require power, DC power (mebbe an adapter or batteries).

but believe me, its not easy to build this circuit. jus go out in the market and launch a hunt for those kindsa circuits.

[Kenshin]

^^ That will be messy stuff.....its cheap but its no good...i hv worked with IRs and they are no fun to work with....tats why now i hv shifted to RF in all my works...except linefollowers and to control my PC ka apps using tv remote hehe

[sourav]

can u plz give a circuit diagram as i unable to make out

how to modulate and demodulate ir signals to rf and vice versa

[infra_red_dude]

^^^ you get readymade circuits for that.

@yeah kenshin, i kno that too. am an electrical and electronics engg. plus hey i'm the IR of this forum!!! who better can know the pains associated wid me!!! haha...

[sourav]

@infra
that is what i want

i don't want to make the circuit but just wanted this working

do u know, what are those circuits called

are they available in any electrical stores

can u also give the circuit diagram of connecting the battery, those circuits, transmitter and receiver

[infra_red_dude]

well, i can't say where they are available or how easily. you gotta hunt for them or get them made from the electronics hub in ur city.

[Kenshin]

Get a TSOP1738....since most IR remotes work at 38KHz...this receiver has 3 pins...one of it is the data...give this data pin to a rf transmitter TX433...

this will transmit the data......recive the data using RX433

this has a data pin...give it to a IR led infront o ur tata sky.......press ur remote see it work ..

the RF modules will cost u bout 500 bucks...

[infra_red_dude]

kenshin forgot the IR transmitter on the other end. so add that

[Kenshin]

Yeah a transmitter from the data pin...

[sourav]

you mean that i will connect receiver's data channel to transmitter's???

if yes, then what are those other 2 point for, where they will be connected and how

then what about connecting the data pin directly to the data pin of transmitter