Comments on: IR Remote Control for Home Appliances

By: ashrafkimaro@gmail.com

ashrafkimaro@gmail.com — Mon, 20 May 2019 05:45:16 +0000

I have made by using CD 4017 it works, but after short time it turn off itself until I press a remote button again

By: Aman

Aman — Thu, 09 Mar 2017 06:10:00 +0000

Is there any coding required..?

By: jnagarajan

jnagarajan — Mon, 12 Dec 2016 09:00:00 +0000

nice work…bro

By: Ligo George

Ligo George — Thu, 02 Jun 2016 12:45:00 +0000

In reply to Huzaifa Shareef. Please elaborate.

By: Huzaifa Shareef

Huzaifa Shareef — Mon, 25 Apr 2016 14:12:00 +0000

In reply to Ligo George. Hi need help for making a project remote control for any home appliances wothout using any ic

By: Ligo George

Ligo George — Sun, 14 Feb 2016 13:23:00 +0000

In reply to Daniel.

Thanks for your information. You can also contribute your experiments to us. Please mail to [email protected]

By: Ligo George

Ligo George — Sun, 14 Feb 2016 13:11:00 +0000

In reply to Daniel.

There are different kinds of IR leds. Current and voltage will vary. Maximum output current of 555 is 200mA.
It is a general practice to take the resistor wattage twice the dissipated power.

Yes, 35.2KHz is low, but TSOP1738 will still detect it. You can use a preset if you need accurate 38KHz. But for beginners it will be difficult.

By: Daniel

Daniel — Fri, 05 Feb 2016 07:26:00 +0000

What is the expected current for the IR transmitter you’re proposing ? With 1W for the 22Ohms resistor, it’s like you’re expecting a little more than 200ma, which is more than what the 555 can provide. Also, with the supplied R1,R2 and C2 values, the calculated frequency would be around 35.2KHz, which is rather low compared to the expected 38KHz. Wouldn’t it be wiser to use a preset potentiometer for some frequency adjustment ?
Based on a similar idea to yours, I’m planning to create a circuit that will trigger if the appropriate keys count have been pressed on the remote control within a pre-set time.
It’s interesting to see what can be done with basic components such as the 555, 4017 and the TSOPxx.

By: Ligo George

Ligo George — Sat, 19 Dec 2015 10:24:00 +0000

In reply to adil sultan. It will be very difficult without using microcontroller.

By: adil sultan

adil sultan — Fri, 11 Dec 2015 09:41:00 +0000

i want to do this project but for two or more appliances( 2 channels) but without using micro controller how can you help me plz give some handful detaiol about this thnx????????