Recent content by MattiR

Thanks for the question Bill. Unfortunately I must disappoint you. I still only have the installation manual, no owners manual. No idea of how to deal with the various warnings. I usually only get around one minute lasting warning when powering up.

Thanks for everyone. Appeared unnecessary worksome to try to stick to just the raspi, so I eventually ended up with passing nmea to arduino uno, which I set up to put out seatalk messages through a tiny signal booster to the st60 wind display, my only seatalk1 device. Seems to work okay.

Thanks. I did'nt think far enough when starting to fiddle with this. Right now I only have tho devices, raspi is the talker and repeater ST60 obvilously only listens. As for my proramming skills, I've done moderate level c coding, and usually get it done. But that has been only coding...

Thanks, I see. I was thinking about this, but erraneously from a setup with two wires, one for tx, one for rx. SO, if raspi talks and plotter talks, there is a situation that needs to be solved. Thanks for this.

Thanks for the input Laika. Indeed there's a lot learn, can't say I know too much about signalling. For the collisions I'm not worried, because everything else is doing n2k. For the moment things around here are more or less at halt, so I'll keep on digging. But as soon as we get some sun and...

Thanks Pete, looks like 9-bit serial has been supported for some time. Maybe too much work, but if my quarantine lasts long enough, then why not?

Thanks, clear as a bell! But if you mean I didn't bother to look, you're wrong. I searched for "seatalk voltage", which did not produce that result. The pinout location I was familiar with, so I wasn't looking for that, although the page includes the voltages too. Well, it's always a matter of...

Okay, thanks for the input. I was told at local RM service that the display understands nmea. Maybe he was wrong. The signal voltage at least seems to be too weak.

I have nmea0183 feed from pypilot.org's weather sensor. The raspi is reading the sentences and a systemcl service runs to pass the data forward. Seems I need to have the signal amplified some how. I'll try first to feed the data to my B&G Zeus2 plotter. Maybe the plotter could put out a signal...

Thanks Angus! My desperation eases a bit. Thanks for the link!

I'm having trouble trying to use a st60 wind display as repeater. The seatalk comes from raspberry pi 4 TxD pin. The sentences are correct, but the voltage from raspberry can only be 3.3V at highest. I would just like to have a confirmation. Does the data signal really have that high voltage?

Hi everyone, there has been discussions about owners manual (not installation manual) of the Ap Navigator MK9. "Contessaman" has told having a pdf lying around, but he has not responded to my PM. Anyone have one to share, please? Regards, Matti