IR remote control - Electronic Circuits Projects Diagrams Free

flavius · 8th September 2005, 07:54 AM

Hello, I'm doing a project for school, it's a remote control, with two buttons, made for a pc. The reciver is a GP1U52X connected to the serial COM port of the pc. The thing is that I can't use a PIC for the remote control because it has to be made with discreet components. I can't seem to get the mani 40k oscilator running! Please help

aibelectronics · 8th September 2005, 01:25 PM

Quote:

The thing is that I can't use a PIC for the remote control because it has to be made with discreet components. I can't seem to get the mani 40k oscilator running! Please help.

What are you using for the oscillator? Is it 555 or transistor multivibrator? I once had the problem of not getting my own oscillator running and I found that by changing my electrolytic timing capacitors for ceramic ones (of the same value) the oscillator was able to run. I still don't know why, perhaps is due to the frequency of operation.

Why don't you post your schematic and lets know what's up with it?

loderVSM · 11th September 2005, 05:03 PM

I made a similar project. I used a 40Khz small crystals from Epson electronics or else I suggest you to work out a 40 Khz clock by using a 555 timer in combination wit resistors and capacitors and it will will also work fine !

flavius · 12th September 2005, 09:59 AM

sorry for not posting in such a long time, but i've been really busy at school. I'l try to post a schematic later, now I've tried the 555 but the output on simulations behaved strange, once it was 38kH, later 41 and so on, and i haven't managed to do a working oscilator using a crystal (dunno why) I'l try the transistor multivibrator today.

loderVSM · 12th September 2005, 10:56 AM

It will also work even if the oscillator is at 38Khz or at 41 Khz because the Infrared receiver module will accept frequencies from about 36Khz till 44Khz. This depends on the infrared module datasheet specifications. This will affect only the receiving distance. How much distance are you planning to work with the receiver and transmitter. I manged to go to a little beyond 30 feet approximately 8 m.
Please post your schematic diagram later on.

danielsmusic · 12th September 2005, 05:07 PM

use a crystal is is more stable and easyer to use, a simulater often does'nt get it right :wink:

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8th September 2005, 07:54 AM	(permalink)
flavius	IR remote control Hello, I'm doing a project for school, it's a remote control, with two buttons, made for a pc. The reciver is a GP1U52X connected to the serial COM port of the pc. The thing is that I can't use a PIC for the remote control because it has to be made with discreet components. I can't seem to get the mani 40k oscilator running! Please help

11th September 2005, 05:03 PM	(permalink)
loderVSM	I made a similar project. I used a 40Khz small crystals from Epson electronics or else I suggest you to work out a 40 Khz clock by using a 555 timer in combination wit resistors and capacitors and it will will also work fine !

12th September 2005, 09:59 AM	(permalink)
flavius	sorry for not posting in such a long time, but i've been really busy at school. I'l try to post a schematic later, now I've tried the 555 but the output on simulations behaved strange, once it was 38kH, later 41 and so on, and i haven't managed to do a working oscilator using a crystal (dunno why) I'l try the transistor multivibrator today. __________________ Sorry for my bad English, typos and other errors that may occur when writing something! ops:

12th September 2005, 10:56 AM	(permalink)
loderVSM	It will also work even if the oscillator is at 38Khz or at 41 Khz because the Infrared receiver module will accept frequencies from about 36Khz till 44Khz. This depends on the infrared module datasheet specifications. This will affect only the receiving distance. How much distance are you planning to work with the receiver and transmitter. I manged to go to a little beyond 30 feet approximately 8 m. Please post your schematic diagram later on.

12th September 2005, 05:07 PM	(permalink)
danielsmusic	use a crystal is is more stable and easyer to use, a simulater often does'nt get it right :wink: __________________ when you post that reply, im just kidding.