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View Full Version : Public lighting and the Parallax Infrared Receiver code350-00014 with the Basi



Joe
10-10-2008, 12:47 AM
Hi,

The problem I have is that the receiver
turns always ON because there is public lighting near.

Yes, the receiver is always receiving.

Even I disconnect the IR emitters and I am receiving the signal ( ON).

I placed the stamp with the receiver inside my house
and the sensor works fine.

For this reason I saw the public lighting and there is a big lamp
near.

My question is if the Infrared Receiver code 350-00014 has filter
and what can I do?

Thanks, Joe

Lab Rat
10-10-2008, 01:30 AM
did you pull down the input with a resistor to eliminate false high signals?
i dont "think" the street light has anything to do with it

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I`m not prejudice I hate everyone equally

Amaral
10-10-2008, 02:46 AM
well .. is very probably that the IR recceiver is receiving the public light as an false indicator .. what you can do is put a tube in front of it , so the receiver will be in the shadow of your public light , but this will turn your receiver very directional. I never tryied to add filters for it .. but take a look at phograf shop . they usually have IR film for pictures, they may have an idea of how to filter it ..


hope to help
Amaral

allanlane5
10-10-2008, 08:48 PM
Usually, people use an "IR-Decoder", which only recieves IR-light which is 'blinking' at a 38,000 Hz rate.

If you're using an "IR-Decoder", it may need a 'pull-up' resistor of 10 Kohms to +5 on the signal line. These devices are "active-low", meaning they let the line 'float' high when they see no signal, and send a low when they DO see a signal.