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LF antenna

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Author
AntiPolice Policeman
Posted
29-Sep-2011 09:22 GMT
Toolset
ARM
New! LF antenna

Hello,
maibe someone tryed to connect LF antenna to mcb1700 board ? (lpc1768)
i need some help, i have 125khz antenna but do not know how to connect it to the board.

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Author
Frustrated Consultant
Posted
29-Sep-2011 09:31 GMT
Toolset
ARM
New! but do not know how to connect it to the board

1 - Look at the compiler optimization settings
2 - Use some glue

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Author
AntiPolice Policeman
Posted
29-Sep-2011 09:35 GMT
Toolset
ARM
New! RE: but do not know how to connect it to the board

look, where i can connect it ? can i connect to CN8 - CN10 ? i must gave voltage and ground ? maibe i must use some new items to connect it ? in that board is no connection to antenna.

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Author
Tamir Michael
Posted
29-Sep-2011 09:36 GMT
Toolset
ARM
New! RE: but do not know how to connect it to the board

What kind of consultant are you, you fool :-0 He must stick it in a RS-485 connector!

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Author
AntiPolice Policeman
Posted
29-Sep-2011 10:03 GMT
Toolset
ARM
New! RE: but do not know how to connect it to the board

thats good , i have one tool with antena connectin via micro usb . 4 pins . white and red wire for LF antenna and black and green for HF antenna ... i just wanted to check , can i connect via usb or not :) thanks for compliment "fool" :)

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Author
Tamir Michael
Posted
29-Sep-2011 10:04 GMT
Toolset
ARM
New! RE: but do not know how to connect it to the board

Actually, I was addressing "Frustrated Consultant" - not you.

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Author
Andrew Neil
Posted
29-Sep-2011 11:04 GMT
Toolset
None
New! RE: white and red wire for LF antenna and black and green for HF antenna

So now it's gone from being just one antenna to two!!

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Author
Frustrated Consultant
Posted
29-Sep-2011 10:06 GMT
Toolset
ARM
New! What kind of consultant are you

A poor one who only ever seems to give free advice :(

can i connect via usb or not

You can connect to it, but the more important question you should ask is whether it's likely to work.

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Author
Andrew Neil
Posted
29-Sep-2011 11:05 GMT
Toolset
None
New! RE: the more important question you should ask is whether it's likely to work


Indeed!!

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Author
Per Westermark
Posted
29-Sep-2011 12:16 GMT
Toolset
None
New! RE: the more important question you should ask is whether it's likely to work

Might this be an antenna for RFID? In that case, you may also need a 125kHz RF module for producing that 125kHz signal to the antenna.

Or might it be that your "antenna" is a complete module+antenna? In that case, this module must have some interface. But only you would know what module it is, so only you (or the manufacturer) would know if it interfaces on RS-232, USB or is expected to be connected to raw digital signals. And in the last case, if these signals are intended to use 3.3V logic or 5V logic or maybe even something else.

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Author
Andrew Neil
Posted
29-Sep-2011 12:22 GMT
Toolset
None
New! RE: RF module for producing that 125kHz signal to the antenna

Or an RF module for receiving that 125kHz signal from the antenna;

Or an RF module for both transmitting and receiving - commonly known as a transceiver.

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Author
erikdo malund
Posted
29-Sep-2011 14:25 GMT
Toolset
ARM
New! the catalog has ...

connect LF antenna
the catalog has antennas requiring several different kinds of connection.

you need to provide a link to the datasheet for your particular antenna to have any hope of getting an useful answer.

your question is the equibvalent of asking "I need a headlight for my car" withot telling which car it is

Erik

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Author
AntiPolice Policeman
Posted
30-Sep-2011 07:10 GMT
Toolset
ARM
New! RE: the catalog has ...

hey erikdo,
i need to connect LF 125khz antenna(loop) to mcb1700(lpc1768) tool kit. im searching how i can do that without any troubles.

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Author
Per Westermark
Posted
30-Sep-2011 07:29 GMT
Toolset
ARM
New! RE: the catalog has ...

What parts of our comments didn't you read?

Do you have a transmitter or receiver somewhere?

Where do you insert the CD in your player, if you don't have a CD/DVD/BD reader?
Where do you insert the memory card into an old-time chemical camera?

When you connect an antenna to a TV, you do it because the TV has a radio receiver with an antenna input.

Have you found your development board to have a radio receiver or radio transmitter on it? If you have, then you would know if it also have an integrated antenna, or if it has a connector for an external antenna. If it hasn't a radio receiver or transmitter, then it will not have any connector for any antenna, and you must instead figure out how to connect a receiver, transmitter or transceiver to the board.

Read-Only
Author
Andrew Neil
Posted
30-Sep-2011 08:46 GMT
Toolset
None
New! RE: What parts of our comments didn't you read?

All of them, apparently!

"Have you found your development board to have a radio receiver or radio transmitter on it?"

And not just any radio receiver/transmitter - you need one specifically designed (and/or adjusted) to your required frequency (125kHz) and whatever modulation scheme you require and all the other details of whatever it is that you're actually trying to achieve.

http://www.catb.org/~esr/faqs/smart-questions.html#goal

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