(2024-12-02, 07:02 AM)Adrian Wrote: [ -> ]Sounds like a hardware issue. If you haven't already, take a close look at the RJ45 connector, and check that none of the contacts are bent or missing.
Unfortunately, the LEDs are controlled by MAIANA and don't tell whether the RX and TX lines are connected. So they only confirm that MAIANA is running and that the wires for the LEDs are intact.
Where are you located? EU or North America?
(2024-12-01, 11:42 PM)aitonos Wrote: [ -> ]I tried also with the breakboard which comes with Maiana feeding it with 12V and connecting the board by USB to the Raspi. The board was not detected by Raspi serial, so I couldn't get anything from Maiana. (FYI, the board had no lighting led ( incase there should have some)
When plugged in, the USB breakout will likely show up as /dev/ttyUSBx or /dev/ttyACMx, where x is a number. The OpenPlotter serial app should list it as documented here starting with step "After enabling UART or just plugging in the USB and clicking refresh":
https://openplotter.readthedocs.io/lates...uring.html
If you are able to configure the serial connection via USB, including the documented steps for Signal K and OpenCPN, but still don't get data, then the defect is on the MAIANA side.
Thanks, Adrián. I'm located in Spain.
I checked the pins in the rj connector and they seem to be fine and casing strongly attached to the Mac Arthur board.
It was bizarre for me not to be even able to recognize the break board connected by USB to the raspi, nothing showing in serial. I tried just USB and USB + feeding voltage in the first two pins (Voltaje and ground)
I'm quite familiar with serial connections towards signal K, as I have another raspi (4) with inputs from Nasa Wind and arduino based Nasa Depth sounder, and also A third raspi with Venus Os linked to the raspi 4, so I am quite familiar with those steps.
As I said above, we're promoting this amongst our fellow sailors in Vigo area and it's sad that the promoter is facing these issues, haha.
If I have to send it somewhere to be checked, I'll do it, no worries.
Thanks
If you are not getting data from the breakout board by USB then the problem is in the Maiana, the cable or it is a configuration problem. The breakout board must be connected to 12V because the USB does not power the Maiana. Do you still have the Maiana USB adapter? have you tried it?
Inspect the RJ45 connector in the Maiana side. I do not think the problem is in MacArthur's side because we check all connections before shipping but we can send you another one in case we isolate the problem. Maiana is out of stock and will be for a while so hopefully that is not the problem.
Thanks Sailoog:
I checked also the RJ 45 connection in any side ( Maiana, Mac Arthur, Breakboard).
I didn't buy a USB adapter, pin this batch just Mac Arthur with Power module and Maiana. Before Moitessier 2 and case for it.
If you don't mind, I can send it at my cost to be checked.
Thanks
OK sorry, I must have confused you with another user. So it has never worked?
OK send me the HAT and also send me the Maiana, only the main PCB. I will send you the shipping address by private.
(2024-12-04, 06:49 PM)Sailoog Wrote: [ -> ]OK sorry, I must have confused you with another user. So it has never worked?
OK send me the HAT and also send me the Maiana, only the main PCB. I will send you the shipping address by private.
Thanks, Sailoog, I read your PM before reading this message, so questions already replied.
No, never saw it working.
Thanks!
Having the same issue as "aitonos".
Running same hardware and configuration, but not headless.
AIS and GPS Fix LED's are turned ON, but no data to SignalK or module visible in Maiana configuration module.
Has been running flawless in OP3 on a RPi3
I have some updates some good, other not so good.
Before packing the HAT, Maiana, and all the necessary stuff to check for hardware failures, I decided to give it one last try. I did a fresh installation of OP4 Headless and, as in previous attempts, I went straight ahead to configure it (I didn’t even change the SSH password yet), and it worked! I can now receive AIS targets, but the GPS doesn’t get a lock anymore (amazing). At least it is communicating with SignalK, the Maiana APP can connect to the device, and data can be configured for broadcast, but nothing is actually being broadcasted (even though it says "transmitting," maybe because the GPS fails to get a fix).
I now observe a different behavior compared to before when nothing was working. Now the HAT has the **CAN connection LED lights** turned ON (even though I have nothing connected to it). Before, these lights didn’t turn on at all.
---
On the downside:
1. I can’t get the HAT to recognize the IMU MPU9250 board connected to the top port. I will try with an official one, as I’ve read that most Chinese boards don’t work well with the Raspberry Pi.
2. The I2C BME680 sensor connected via cable to the dedicated port is not being detected. I installed the SignalK plugin, but I2C doesn’t pick up its address (maybe for the same reason as with the IMU, both were sourced from AliExpress).
3. The Maiana GPS no longer gets a fix. Before this new behavior, it was almost instantaneous.
On my boat, I have another Raspberry Pi 4 also running OP4 with a Moitessier HAT 2. From time to time, it has historically had intermittent GPS reception failures (although AIS has always been fine). For example, right now, it’s blind again and has no AIS or GPS reception.
Another USB GPS with a very modern chip (receives Galileo, Glonass, BDS, and GPS) is also not working. So now I have three devices failing! Weird and dodgy.
---
Conclusion for now:
This makes me think that all my ghosts and goblins come from RF noise . I’ve been reading on the internet, and it seems that DC-DC converters can generate a lot of noise. I have four of them in my setup:
- Two variable ones (one for the router and another for the LAN switch).
- Two more 12V to 5V converters (one exclusively for powering the Raspberry Pi and another with 3 USB outputs).
I’ll disconnect them one by one to see if any of them are the source of this massive GPS/AIS failure.
I also read that other potential sources of trouble are ground loops or bad power cable connections.
As soon as I get an update, I’ll post it here. For now, I don’t have much time to run all the tests. In the meantime, I’ll order the new parts.
Thanks to everyone who’s concerned and helping!
Hi!
I have great news! As I mentioned the other day, after researching potential causes for this strange and frustrating behavior, I discovered why I was experiencing temporary or permanent loss of GPS and AIS reception on Maiana. This issue was also affecting both my USB GNSS and Moitessier 2 systems.
The culprit turned out to be a noisy DC-to-DC converter I was using to step down from 12V to 9V for my 4G router. Once I disconnected it, everything came back to life in less than 30 seconds!
Now, everything is working properly as it should, and Maiana is finally for its first time transmitting and receiving perfectly.
This seemingly minor issue drove me crazy for a long time, so I believe it deserves an advisory post. Many people might not realize how sensitive AIS and GPS receivers can be to interference from DC-to-DC converters, USB 3.0 SSD cases, and similar devices. These can cause malfunctioning or even completely blind the systems.
Thank you to everyone who showed concern and offered advice regarding my situation. Your support meant a lot!
Wishing you all a Merry Christmas!
(2024-12-23, 07:06 PM)aitonos Wrote: [ -> ]Hi!
I have great news! As I mentioned the other day, after researching potential causes for this strange and frustrating behavior, I discovered why I was experiencing temporary or permanent loss of GPS and AIS reception on Maiana. This issue was also affecting both my USB GNSS and Moitessier 2 systems.
The culprit turned out to be a noisy DC-to-DC converter I was using to step down from 12V to 9V for my 4G router. Once I disconnected it, everything came back to life in less than 30 seconds!
Now, everything is working properly as it should, and Maiana is finally for its first time transmitting and receiving perfectly.
This seemingly minor issue drove me crazy for a long time, so I believe it deserves an advisory post. Many people might not realize how sensitive AIS and GPS receivers can be to interference from DC-to-DC converters, USB 3.0 SSD cases, and similar devices. These can cause malfunctioning or even completely blind the systems.
Thank you to everyone who showed concern and offered advice regarding my situation. Your support meant a lot!
Wishing you all a Merry Christmas!
Super interesting finding - I'm though running on 12V battery, no charger. Tried to make use of an DC supply 15V same issue. Maiana not seen by the MacArthur HAT
I think my initial problem, which was that Maiana was not seen by Mac Arthur, was not related to this electronic noise I meant; at least I cannot link one thing to the other.
What I can tell you, is that when my Mac Arthur couldn't see the Maiana, my Mac Arthur had no lights in CAN BUS. After dismantling everything and remounting it again, it worked and CAN lights were lighting solid. I think that that it can be by a bad connection in GPIOs, or who knows.
I also lighted up once Maiana with the power modeule attached but without being connected to PI. Don't know if this was a risky action, but I did it when I unmounted it.
Try at least to unmount it and remount it.
Good luck