Suunto (vyper) Computer interface

[luke284]

as some of you may know from reading my other thread i have just ordered a Suunto Vyper.

I want to make the Computer for 2 reasons:
1) im not shelling out £55 for a cable with some simple electronics in. (ohh and a cd but i dont think my ADSL line will stuggle downloading the software)
2) i think it would be fun to make one, and as i have the skills facilities i may as well take advantage of them!

Now come the questions...

Ive been doing lots of googleing into my "problem" and there seam to be different solutions.

This method seams to use a pair of LM358s (OP amp)

The other seams to use some transistors.. i assume they are arranged to do a similar job to the OP amps.. (more direct link to the instructions here)

has anyone here attempted making one and which method did they use? also what are people using for the mechanical contact as that seams like the hardest problem to overcome!

thanks the time to read through all that... and if i have time i might be able to make a few at the same time for a small fee   if anyone is interested? it would not be much trouble to make 2 or 3 as im making one!

[Mdemon]

I assume you've already found the links to the DIY Suunto link?  I could dredge it up if you like...

Got a cable myself, but can't believe what they charged for it...  

[String]

I built the Roli interface ( http://www.geocities.com/scubadiver_roli/english.html ) which is a transistor job.

You can use either method - all they do is level shift the negative logic of the suunto into rs232 compatible signals so there are loads of circuits that will achieve exactly the same goal.

The interface itself cost me <£3 however making a plug/connector to fit the vyper is difficult - its non standard and i havent found anything yet to work so i have to hold wires onto the contacts which is frustrating at least.

[luke284]

ive found the perfect things for the connections

have a look on RS the stock code is 434-318

looks like one on the left

[beanie]

<font color='#8D38C9'>i've tried both versions and failed

the software would reconise the interface but wouldn't talk to the vytec

[nickjb]

I made the Roli for my stinger. &nbsp;It is a lot simpler. &nbsp;Seems to work fine (I've been using it nearly two years). &nbsp;I made the adjustments suggested and I can connect to my PC or my Palm. &nbsp;It is nice to be able to look at a profile right after a dive.

I think it cost about £5 (of which £3 was some sprung contacts)

HTH
Nick

[String]

Originally Posted by [b

Quote[/b] (luke284 @ April 21 2004,10:08)]ive found the perfect things for the connections

have a look on RS the stock code is 434-318

Link doesnt work due to cookies etc but looking up that stock code they seem to be the right thing - did it need any alteration at all ?

[Simon A]

Luke,
if you do knock out a batch of these Vyper interfaces, I'll buy one off you.
Simon A

[luke284]

Originally Posted by [b

Quote[/b] (String @ April 21 2004,11:44)]

Link doesnt work due to cookies etc but looking up that stock code they seem to be the right thing - did it need any alteration at all ?

dont know yet havent started making it yet.. i would expect i would just have to glue them the right distance apart!

[Fathoms Down]

I bought mine for £15 so it didn't seem worth making one. &nbsp;