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Topic:
in RC5, 0073=36khz but 38khz=?
This thread has 4 replies. Displaying all posts.
Post 1 made on Sunday October 20, 2002 at 12:23
dj_gigi
Long Time Member
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June 2002
18
the new Thule Audio products use RC5 code, with 38kHz transmission rate and 950nm IR receiver and the older 36khz

For the old product, I use this:

5000 0073 0000 0001

5000=RC5
0073=Frequency (36KHz)
0000=Number of burst pairs in Non Repeating Segment
0001=Number of burst pairs in Repeating Segment (why this is 1 I don't know)

Then the last two are:

0010=10Hex or Decimal 16 the device number or System Address
0000= 0Hex or Decimal 0 the first command of Zero etc.

But now, what's the code for the Frequency (38khz)

thank you
David
Post 2 made on Sunday October 20, 2002 at 12:26
jarmstrong
Founding Member
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March 2002
1,780
Where N is the value (in decimal) of the second 2-byte hex word:

Frequency = 1000/(N * .241246)

-Jon
OP | Post 3 made on Monday October 21, 2002 at 08:26
dj_gigi
Long Time Member
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Posts:
June 2002
18
therefore the code for frequency is 006d

right ?

David
Post 4 made on Monday October 21, 2002 at 10:13
p.a
Lurking Member
Joined:
Posts:
October 2002
1
Yes it's right ...

You can use this software to try :
[Link: home.hccnet.nl]
OP | Post 5 made on Sunday October 27, 2002 at 18:23
dj_gigi
Long Time Member
Joined:
Posts:
June 2002
18
Hi,

I have try with 006d (for exemple: 5000 006d 0000 0001 0010 0001), but that's don't work...



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