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Topic: IR Receiver, No Decode (Read 939 times) previous topic - next topic

DuaneB

Hi,
   I am looking for an IR Receiver which does not include any signal restrictions, the ones I am using at the moment have built in logic to qualify the signal i.e. individual pulses must be shorter than X, must be followed by a pause of Y.

   Looking at the data sheet, this component does not list any restrictions on the signal characteristics -

http://docs-europe.electrocomponents.com/webdocs/08b4/0900766b808b4438.pdf

Has anyone used on of these and can confirm that it will stay low given an extended pulse of 38Khz IR and will not try to condition or qualify the pulse in anyway. Alternatively can anyone recommend a similar part which has 38Khz detection but without additional signal restrictions ?

Thanks

Duane B

rcarduino.blogspot.com
Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

Claghorn

I use the VISHAY TSOP38338 IR receiver in my gadget, and it just delivers a signal when 38Khz is present and the opposite signal when it isn't. I use it to learn raw IR codes. See:

http://home.comcast.net/~tomhorsley/hardware/arduino/arduino.html
http://home.comcast.net/~tomhorsley/hardware/arduino/arduino.html

DuaneB

Hi,
  Page 5 of the datasheet suggests that the part is validating signals, I want one that isn't.

Thanks
Duane B

rcarduino.blogspot.com
Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

Grumpy_Mike

You want a TSOP4038, that is designed for light barriers and does not have a maximum / minimum pulse requirement.

DuaneB

#4
May 10, 2012, 09:34 pm Last Edit: May 14, 2012, 04:52 am by Coding Badly Reason: 1
Quote
You want a TSOP4038, that is designed for light barriers and does not have a maximum / minimum pulse requirement.


Perfect, thanks, I knew you had suggested this or a similar part in a thread previously and was hoping you would jump in here as I could not find the previous referenc.

Thanks

Duane B

rcarduino.blogspot.com


Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

krazatchu

Or the tsop58038 which is the replacement for the tsop4038...
I have used both for bootloading and lacking AGC they don't turn off with extended duty cycle..

IR bootloader: http://n0m1.com/2012/05/07/superduplex-an-infrared-bootloader-for-arduino/

Michael
----------------------
http://www.krazatchu.ca

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