Barcodes (Tassimo)

[Sounduser]

Has anyone figured how the tassimo coffee machine bar codes work?

The only thing that ive found online is this:
https://wiki.mbirth.de/know-how/hacking/tassimo-barcodes.html

But its kind of helpful. Many dead links around.....

If I make up a 13 bit binary number, convert it to decimal and then enter it into a free bar code creator ( 2 of 5 bar code with a check sum)(http://generator.onbarcode.com/online-interleaved-25-barcode-generator.aspx). The machine will read it. But I cant figure out exactly what bits mean what? I think maybe they're doing the check sum slightly different and making my results not tally?


Binary                    Decimal            Expected result   Actual result
            
11 00 0000 000 00   6144    061445   50ml                   55ml - warm
11 10 0000 000 00   7168    071680   50ml                   120ml - warm
11 11 0000 000 00   7680    076870   50ml                   95ml - warm
11 01 1000 000 00   6912    069120   150ml           185ml - warm
11 00 1100 000 00   6528    065283   230ml           115ml - warm
11 00 0110 000 00   6336    063364   110ml           120ml - 50ish
11 00 0011 000 00    6240    062404   80ml                   75ml -   50ml
11 00 0001 100 00   6192    061926   60ml                   70ml - 50ish
11 00 0000 110 00    6168    061681   50ml                   75ml - 50ish
11 00 0000 011 00   6156    061568   50ml                   70ml - 50ish
11 00 0000 001 10   6150    061506   50ml                   60ml - 50ish
11 00 0000 000 11    6147    061476   50ml                   60ml - 50ish
11 00 0000 000 01   6145    061452   50ml                   65ml - 50ish
            
11 00 1111 000 00   6624 066242   300ml           235ml - warm


All 1111111111111 was lots of hot water.
All 0000000000000 was the only code that would read.


Anyone messed with this before? Any ideas?

Cheers. 

[Sounduser]

Its definitely doing the check sum differently. 

a Kenko Americano is 297615 (70 degree c  220ml ish)

Online  bar code creators add a digit to the start and end.

So I was expecting, 9761 was the significant numbers. Adding those digits into the creator gave a number of 097611. which should have given me the same results, but I got 35ml of 45 degree c water.