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OSTC4 & CCR connection
Posted by: aligot ()
Date: February 06, 2017 08:31AM

Hello,

instead of the expensive ppO2 monitor device, do you plan to produce an adapter that can be directly put into the head of a rebreather to transform signal from the cells to optical one ?

Like a lot's of people I have an AP rebreather. I have O2 cell monitoring on the rebeather handset. I can get some cable out of the rebreather using, for instance adapter from tecme.de . If I connect my OSTC4 to this rebeather I'll have two ways to get cells reading. I don't need a third screen and I would prefer limit the number/size of devices I carry under water :-)

What can you suggest ?

Best regards,

A.

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Re: OSTC4 & CCR connection
Posted by: aligot ()
Date: July 26, 2017 01:53PM

Hello,

Do you have some specification about the optical link of the OSTC4 ? Are you able to provide them ?

I'm thinking about using an arduino to send the OSTC4 O2 sensor information.

Best regards,

a.

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Re: OSTC4 & CCR connection
Posted by: glance ()
Date: July 26, 2017 05:49PM

I think the protocol is the same as between the ppo2 monitor, hud and the ostc3, as described in:
[forum.heinrichsweikamp.com]


//Anton

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Re: OSTC4 & CCR connection
Posted by: heinrichsweikamp ()
Date: July 31, 2017 09:27AM

Hi,

Yes the protocol is identical.

regards,
Christian

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Re: OSTC4 & CCR connection
Posted by: Thorsten ()
Date: March 19, 2018 08:21PM

Hi,

did someone continue with the arduino idea? I am just trying to do the same but facing problems with the data receiption.

Signal modulation is done like described in the link above.

Checksum seems to be an addition byte by byte (checked OSTC3 source) and then comparing the 16bit value with the 16 bit checksum received.

Is there an debug mode available at OSTC4 which could be used to check the received data ?

Kind regards,
Thorsten

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