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mantera87
New Member
Malaysia
1 Posts |
 Posted - Mar 18 2008 : 08:55:00 AM
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| I have a problem.....can you tell me which type of Q3 NPN Phototransistor you used and the function of LM567 Tone Decoder |
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audioguru
Nobel Prize Winner
Canada
4218 Posts |
Posted - Mar 18 2008 : 6:17:54 PM
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Most NPN photo-transistors are the same. A few are more sensitive.
The LM567 detects the frequency that modulates the IR LED so that interference from lights doesn't trigger the relay. |
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Zonsopgang
New Member
Indonesia
1 Posts |
Posted - Aug 05 2009 : 06:55:33 AM
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| help me. I want to make simple remote IR that consist of 2 buttons, first button to activate the device, and second button to deactivate the device. any component that will I require? there is again, I wish that remote can be functioned at a distance of around 10 metres or around 30 feets. |
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thedude
Apprentece
South Africa
27 Posts |
Posted - Aug 05 2009 : 09:11:30 AM
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The circuit can be used with any general remote.
Check the link for more info. It contains the explanation and schematic.
http://www.kitsrus.com/pdf/k58.pdf |
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kauphy
New Member
Ghana
1 Posts |
Posted - Aug 18 2009 : 1:42:05 PM
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HI,
CONCERNING UR PAPER ON "HOW TO SOLDER" YOU MENTIONED SOLDER PAD, I WILL BE GLAD IF YOU POST A PICTURE OF IT |
to know to dare |
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boron
Mad Scientist
Canada
223 Posts |
Posted - Aug 19 2009 : 10:04:32 AM
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Hello,
Firstly the caps lock is kinda annoying, like you're shouting the question at us and secondly its in a very wrong place.
But to answer the question, a solder pad is just the location on the board you will be soldering the component to. Generally a circular small piece of copper with a hole in the middle... You could just google it. |
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Aaron Cake
Administrator
Canada
6718 Posts |
Posted - Aug 19 2009 : 10:10:22 AM
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quote:
Originally posted by kauphy
HI,
CONCERNING UR PAPER ON "HOW TO SOLDER" YOU MENTIONED SOLDER PAD, I WILL BE GLAD IF YOU POST A PICTURE OF IT
You should be making your own topic instead of hijacking other people's posts.
However, to answer your question, a solder pad is simply the pad of copper through which a component lead sticks and is soldered to.
My "How To Solder" writeup is pathetic and rather old. I am making a much newer one currently, but I don't know when it will be online. |
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Infa-red Remote Control
