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IR remote

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Fri, 05/21/2010 - 21:56
aarti
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Hello , this is my first time here and I am interested in the IR project.
I have a TSOP1230 IR receiver and I am trying to use it to decode may TV remote commands. My question is: How to I know in which frequency and which format the remote is transmitting?

Thanks 

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Wed, 04/29/2009 - 11:00
#1
shobhitkukreti
User offline. Last seen 16 weeks 5 days ago. Offline
Joined: 04/28/2009
bOt Points: 683
Usually TV remote controls

Usually TV remote controls emit pulses  at 38Khz, A popular IR sensor for it is TSOP1738, where "38" at the end defines the frequency. To decode a remote control signal. Most TV remote controls follow the RC5 encoding a protocol developed by Phillips.

 

                  RC5 Encoding

 

Bi Phase Encoding.

The rc5 has a total of 14 bits with s0-s4 as address of the device and c5-c0 as command

 

I hope this helps.

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Thu, 04/30/2009 - 14:34
#2
aarti
User offline. Last seen 1 year 11 weeks ago. Offline
Joined: 04/16/2009
bOt Points: 74
thank you

thank you for the informative reply  

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Thu, 04/30/2009 - 16:47
#3
shobhitkukreti
User offline. Last seen 16 weeks 5 days ago. Offline
Joined: 04/28/2009
bOt Points: 683
No problem. Keep us updated

No problem. Keep us updated with your work.

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Thu, 04/30/2009 - 20:06
#4
Ashutosh (not verified)
IR Switch

get the PCB layout for the project from http://robolabz.multiply.com/journal/item/21/Diptrace_Files_

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Thu, 04/30/2009 - 20:09
#5
Ashutosh (not verified)
Which is best software to draw the schematic or circuit diagram

i think that the express PCB and diptrace are best to draw the schematics but the software used by botskool is very good i want to know the name of the software used by botskool

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