Thule products use RC5 code, with 38kHz transmission rate and 950nm IR receiver. I have system address bits of 10100 and command address bits of 101101. How do I convert this data to an IR command? Is there more I need to know / supply?

Thanks,

Most all Pronto's understand the RC5 database command format. In this case ithe command is:

5000 0000 0000 0001 0014 002D

10100 binary = 20 decimal = 14 hex => 0014

101101 binary = 45 decimal = 2D hex => 002D

You can use Microsoft Calculator View|Scientific to make those conversions.

Single Character at a time conversion is
Binary = Hex = Decimal
0000 = 0 = 0
0001 = 1 = 1
0010 = 2 = 2
0011 = 3 = 3
0100 = 4 = 4
0101 = 5 = 5
0110 = 6 = 6
0111 = 7 = 7
1000 = 8 = 8
1001 = 9 = 9
1010 = A = 10
1011 = B = 11
1100 = C = 12
1101 = D = 13
1110 = E = 14
1111 = F = 15
---^ This slot represents its value times 2 to the 0th power (1*2^0) or (0*2^0)
--^- This slot represents its value times 2 to the 1st power (1*2^1) or (0*2^1)
-^-- This slot represents its value times 2 to the 2nd power (1*2^2) or (0*2^2)
^--- This slot represents its value times 2 to the 3rd power (1*2^3) or (0*2^3)
ETC....
So in the case of 1101 you have 2^3+2^2+0+2^0 Which solves for 8+4+0+1=13 IN DECIMAL OR D IN HEX

0101 0000 0000 0000 0000 0000 0001 0100 0000 0000 0010 1101 = 5000 0014 002D
Also, as said above... if you have a partial block of binary code like 101101 that really means 0000 0000 0010 1101 Which converts the same way
0000>0 0000>0 0010>2 1101>D for 002D.

This message was edited by grengrad on 01/08/04 17:23.

Please keep me posted if you come up with a solution for your problem. I have a tsu 700 and a thule PR250B that I can not get to work correctly.

Thanks,

Guy

I'll keep you up to date.

Everything works fine using a Pronto TSU3000. However, when I use these same strings with an RTI T2, I receive a message stating "Unknown code type detected". Is there a way to change this string into something that an RTI will understand (without manual learning them from the Pronto)? Tikiguy, I sent you an email with the Thule link and also some codes for source selection on the PR250.

The RTI TT does not convert database format commands only the learned format. In addition to an extra step, that means that RTI TT can't do a toggle bit without using some workaround.

The toggle bit (in RC5,RC6 and a number of European IR protocols) is usually one bit that changes polarity each time you press and release a button. This is a problem if you want to program the SAME succesive key in a macro. Programming Channel 222 will require 2(T=0),2(T=1), 2(T=0). If the commands are different it dosn't matter what the toggle state is.

To generate RC5 commands in the "learned format" or Pronto codes starting in 0000 or 0100, use John Fine's MakeHex [Link: remotecentral.com]

Unzip everything into one directory. Rename the file RC5.irp to RC5-old.irp and add this this one:

'*********************************************
Device=0
Function=0..127

Protocol=RC5
Frequency=36000
Time Base=889 '888.89 = 32 cycles at 36Khz
Message Time=113778 '128 times TimeBase of 888.89
Zero=1,-1
One=-1,1
First Bit=MSB
Form=;1:1,~C:1,T:1,D:5,E:6

Define=C as F(6..6)
Define=E as F(0..5)
Define=T as 0 'For the Zero toggle state, 1 for the One toggle state

'this has been modified to do all 128 commands
'*********************************************

Copy everything between but not including the asterisks and paste into Notepad. save AS , All Files,
RC5.irp in the directory where everything else was unzipped.

To use it read the readme, but there are only three statements to be modified all in DECIMAL:

Device=20
Function=0..127
Define=T as 0

will produce all 128 commands (with T=0) or you could change to:

Function=45..45

To create only the command above 5000 0000 0000 0001 0014 002D but in “learned” format.

If you need the same command (s) in two different toggle states, then change T=1 and re-run.

-Jon







This message was edited by jarmstrong on 01/09/04 20:49.

Everything is working great. thanks all.