Remote controlled appliance switch circuit
Description.
Here is a versatile remote controlled appliance switch that can ON or OFF any appliance connected to it using a TV remote.
IR remote sensor IC TSOP 1738 is used for recieving the signal. Normally when no signal is falling on IC3 the output of it will be high.This makes Q1 OFF.When a signal of 38 KHz from the TV remote falls on the IC3 its output goes low.This makes Q1 conduct and a negative pulse is obtained at pin 2 of IC 1 NE 555.Due to this IC1 wired as a monostable multivibrator produces a 4 Sec long high signal at its out put.This high out put is the clock for IC 2 which is wired as a Flipflop and of , its two outputs pin 3 goes low and pin 2 goes high.The high output at pin 2 is amplified to drive the relay .For the next signal the outputs of IC2 toggles state. Result, we get a relay toggling on each press on the remote.Any appliance connected to this circuit can be switched ON or OFF.
Circuit Diagram with Parts List .
Notes.
- Before wiring the circuit make sure that the carrier frequency of the TV remote you have is 38 KHz.For that wire the sensor part only ,point your remote to the TSOP1738 and press any switch.If out put of TSOP1738 goes low them ok, your remote is of 38Khz type.Nothing to worry almost all TV remote are of this type.
- You can use any switch because for any switch the code only changes,the carrier frequency remains same.We need this carrier frequency only.
- Assemble the circuit on a good quality PCB or common board.
- The appliance can be connected through NO or NC and contacts of the relay .
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This circuit components are not available mostly.it can also be used in low voltage Dc circuits.
sir i cant find BC 158 what are the possible replacement for BC158
u can ask me,i’ll help u any dought……
sir,
I am not getting 1738 at my place. Can I Use 1838 instead. is the pin configuration of both same.
Please reply
May i use this circuit to switch on and off the led flashers using tv remote, pls advice me
since, the sensor of all circuit board are different there for we can’t use the another remote control…..
i have used this circuit for 7 years for light circuit and still run perfect. All you need is a stabiole power source.
Sir can this project be used in any appliances like heater
all depends on your Relay rating.
Usually in India 6V relay will be of upto 5A rating. The heater 1KW will draw upto 6A. Hence, I will not recommend it for switching the heater.
sir,can we make remote for epson ebx9 projector to conrol power switch….?
plz i want the pin diagram of these three IC.
ic tsop1738 cant be find ,Pls assit.
I think its a sensor. Instead of it u can use television remote sensor.
I’ much interested in building this circuit, but the parts aren’t so easy to come by in my country.
Do u have any advice to how I can get these parts
i want 2 fan and 3 tube light circuit and programme
hi sir,
i want to connect this ckt to my fan and operate with my remote,is it possible are not,if so how?
heyy admin,
this one is cool
but if i want to make an ir remote controlled switch board for more than one on/off appliances using a microcontroller, then in that case could you please provide me with the circuit diagram of that.
and necessary details of that
thanks
Hi lam happy for this cct.l made it for switching elect. bulbs in my room. Thankyou
Hi Abdul the 6volts relay contacts are rated for 220Volt AC and for rated current see the relay contact ratings or use a 6 volts relay wih required contact voltage and current rating.
Is this can load directly to 22Ov for on/off switch?
i plan to used it for light switch…
Hi Hemanth use the common and Normally open contact of the relay to operate any off/on control of any equipment.
please tell me relay connections
my i.d:-
hemanthi4u@gmail.com
please tell me the relay connections
how should i connect relay here
it’s realy a good circuit. I’m made it in the combetition. Thank u for circuits today & seetharaman
Hi Javid 1 to 1.5mm bit can beused. Use 12 volt relay increase the supply to 12 volts DC add a 560 ohms 1/4 between supply at the relay point to IC2 Pin16 in the positive rail. This will take care of the rest of the circuits
I want a kind help pleas. I don’t get 6V relay any where. I got only 12V relay. What i do. No much time for my combetition.
Which is the bit size used for the driller for making holes on PCB?
Ya.its amaizing & i gained more.
Hi Javid the following article will be useful to you please follow the link
http://www.riccibitti.com/pcb/pcb.htm
I want to make a PCB by KCl3.what r the terms followed?
Plz help me by giving definition/giving web site address.
Ok .thank u very much.
Hi Javid you can use 560 ohms or 680 ohms. it will not matter. the unit will work.
Hai… I lik to make this circuit for a combetition. But i have no 620 ohm resistance. May i use 220 ohm,390 ohm & 10 ohm in series?
Hi Visus Please note for 1838 1 is output 3 is supply and 2 is common. Kindly rewire as above it will become alright.
hye ! I m using tsop 1838 an when i press tv remote switch ,d output goes to 3.94 v frm 4.9 , cn i use this in this crcuit n if not what actually is active low output of pin 3 frm tsop 1738 when ir is sensed
Hi Maaniq you can use your ir remote with the above circuit. with the relay contacy you can switch on / off any appliance within the rated capacity of its contacts(relay).
@seetharaman and all., i have two questions., can u plz resolve for me…..?
1.can i use 38 khz remote transmitter for sony IR-D15A….?
2.can i control my home appliances like fan or light ? BY driving a relay with the output of IR-D15A., will it drive a relay? 5v SPDT relay., so tat i can control my home appliances?
plz reply …….
Hi Nik you can try the following 15 channel controller Sony Ic ID-D15A with universal remote control.
http://www.rentron.com/Files/IR-D15A.pdf
Hi Nik you may try the following project for 4 channels http://www.circuitstoday.com/remote-control-circuit-through-rf-without-microcontroller
can we make whole lighting scheme remote controlled by using 1 universal remote???
Good, It is working but it cannot use for tube lights..it will detect tube lights..
i want to make this circuit please give me full description
I am going to make it.
i made a small modifcation to this circuit. Diode D4 is added so that the parts of the circuit other than the IC3 donot load the zener diode.
Hi.
i gave connection as per circuit diagram…
but my zener diode is heating….and LED 1 is not glowing,while LED 2 is glowing,
and no output,
plz help to solve my problem guys..
This is what I got for my school project and we must make it in PROTEL design system (1994) so anyone got this draw on that program and possible to send me file? thx
Hi Rakesh this can be used for any on/off application. for varying speed you have to add 4017 etc.
sir
it is possible to celling fan which is to be used in home appliances can you say that this circuit is applicable or not if it is not possible then send a appropriate circut for remote control celling fan thanking you
rakesh
rakeshb.0205@gmail.com
hai frnds plz send me many projects.i wait for ur reply
To Seetharaman,
Thanks for the tips. By solving false triggering problem this circuit may be used for multipurpose switching.
Hi seetharaman
subject: 100watt sub-woofer
i shorted R9 & R10 the temperature of transistors decreased but Q7 is getting hotter than Q5 why ?
Hi Imteaz you can connect 100uF and a reverse biased diode in parallel with relay coil K1, this should solve your problem as the back EMF from relay coil is false triggering your IC.
I was trying to make a touch switch by 555 and 4017. But when I used relay i faced false triggering of 4017. Is this circuit free from false triggering?
IC2 is CD4017. If you have any doubts regarding this circuit. mail me to arifuddin2007@gmail.com
how i can rised the voltage from 1.5v to 12v.give me circuit diagram.help me pls.
plz tell me the number of ic2
i am going to work on this project………!!!
can i put this circuit on 9V
can i put TSOP1138 instead of TSOP1738? please reply on this e-mail malecko44@yahoo.com
can i connect light,fan,refregirator to this single circuit and operate.
if we cannot what is the alternative to operate all the house hold elements.
some body please help me in making a house hold appliances circuit.
the load that can be connected to this circuit depends on the current capacity of the relay that you are using.
You can get only one switching action from this circuit.More that one devices cannot be independently switched.
its is working i have made this but the main problem iam facing is that when i apply voltage to the circuit it energises the relas mean it gets triggered every but its working i want to remove this triggering on power apply help me plz
yaaaaa , its workinggggggggg
I made this circuit. Its 100% working. But it is a complicated one. I designed my circuit slightly changing the above one which is very easy to make and working. contact me at arifuddin2007@gmail.com
for the schematic. hope you all like it..
hi , i am going to make this circuit today .
can anybody tell me about this , i mean is it really working without any problem ? because i am a new comer . can u plz tell that this is tested ok ?
my mail is ayan.tinifx@gmail.com
This circuit will work.Please proceed
super