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  OP2 pypilot 2.0.6 RPI4
Posted by: ddelorme - 02-14-2020, 07:37 PM - Forum: Bug Reports - Replies (7)

I noticed we have the sailboat in the calibration screen,
and when the system restarts it activates the actuator? it jammed mine a bit since it is just sitting on the desk.. all good.
is that a auto centre feature?

just as it started i was thinking it would be nice for testing to link the rudder sensor to the actuator.
i guess i will set up a fake rudder for testing with a pot for the pintel
What going on dude, any thing else we should knowSmile 
Also a lot more status messages on the control screen.

  old gauges
Posted by: geogabe - 02-14-2020, 01:10 PM - Forum: How do I...? - Replies (1)

Good Afternoon, 
I am new to all of this so please bare with me. I am putting together my materials etc for adding an RP13 based openplotter system in my 1985 Raider 33. The only working electronics on the boat currently are the depth gauge and I will be getting the speed sensor working once I get the barnacles off. I would like to continue to use the old B&G displays but also want them to be input into the RPi so I can set up my handheld HUD and in-cabin screen. So my question is how can I either output data from the RPi to the B&G displays or can I just pigtail the wires from the sensors and directly input them to the displays and the RPi? ANy information would be greatly appreciated. I have a couple of months before she goes back in the water so I have a little time to work all of this out.  Thanks.

  Repair / hack STW sensor.
Posted by: ddelorme - 02-14-2020, 12:25 PM - Forum: How do I...? - Replies (2)

Yes i used to be a hand model
I am attempting to repair a old STW sensor from my boat. i thought it had a magnetic switch as when i measure the paddle spinning i would get beeps out of my meter in diode mode.
The paddle has 2 magnets in it with opposing poles  and is mounted in a though hull fitting.
with a black and red wire leaving the though hull.
today i decide to test for ac. after looking at the signet site when i spin it i get an ac voltage.
I assume the frequency of the signal equals the rpm of the paddles * 2
I don't have a scope.
Resistance is about 1.8K
flicking it with my finger i get about 10V AC max
How should I read this device?
What is inside the though hull a coil?

  Python dependency issue?
Posted by: - 02-14-2020, 04:05 AM - Forum: General discussion - Replies (1)

I think I made a few mistakes switching back and forth with Python versions on openplotter 1.2
Needed Python3 for some other applications, and uninstalled / re-installed different versions of Python3.
My understanding was that Python2 was unaffected, but I think they might shared some libraries / dependancies back and forth.
For example, I needed to re-install "serial" and some others for the correct working of some other script than pypilot.
If I am correct, Openplotter 1.2 uses Python2 for Pypilot.

I now have a problem with autopilot motor responses, it works fine for a few seconds but then stops all together.
I am not sure if this is caused due to my fooling around with Python, but it is not a connection problem for sure.

There are no errors in the GUI, everything is synced. It works for a few seconds, the GUI seems to work fine but the motor just stops moving.
Also, the magnetic compass readings seem to come in very slow. Checked this with the SignalK monitor, but there it works fast as it should.

I found in the readme that Pypilot uses these dependancies:

The dependencies can be installed with 'apt install' or sometimes 'pip install"

server dependencies (required): python-gps python-serial libpython-dev python-numpy python-scipy swig
                    (recommended): ujson pyudev
lcdclient dependencies: python-pil
web dependencies: python-flask python-gevent-websocket

client dependencies (viewers control applications)
apt: python-wxgtk3.0 python-opengl
  or python3-wxgtk4.0 python3-opengl
pip: pyglet pywavefront

But before I start re-installing these, I was wondering if this even could be a cause for my symptoms or should look into another direction.



  IMU connected to a Laptop?
Posted by: McNugget - 02-13-2020, 07:31 PM - Forum: How do I...? - Replies (3)

Hey guys,

I'm wondering if I should switch from my RPi to an old laptop to run OpenPlotter with OpenCPN for performance reasons in OpenCPN. It's purely aesthetics but I'd like to have a smooth experience for the chart plotter.

The only reason I can see why this would be slightly more complex than with the rpi is the IMU.

Any established, known working way of connecting an MPU9250 to a laptop such that it works as easily as with the PI?


  OP2 Install
Posted by: paul42 - 02-13-2020, 04:07 PM - Forum: General discussion - Replies (2)

Hi All, been using OP v1 with OpenCpnV5 which was great. Now building a new Rpi4B system for OP V2  Cool

Just downloaded & installed the "Pre-Release Starting  OP v2" all no problem.

My question is will a re-flash be needed when the first release candidate is available or will it be able to be done via an update.

I'm not bothered either way, just don't want to bother with all the many small changes if a full re-flash is advised.

Thanks, Paul

  OpenPlotter 2.0 set up tabs
Posted by: drbarritt - 02-13-2020, 06:22 AM - Forum: General discussion - Replies (8)

Hi, I have just installed OpenPlotter 2.0 on a Pi 3+ and it all seems to work OK except I cannot find the set up tabs as shown in the manual under:

Most of the core features of OpenPlotter can be configured from controls located on tabs

Where can I find this screen so I can set up my GPS/AIS NMEA inputs and download charts etc?

Many thanks

  My App
Posted by: Lazzz - 02-12-2020, 11:53 PM - Forum: General discussion - Replies (3)

What is the My App used for with the Dummy Data & Dummy Output??

Also what does it mean when a connection or sensor is highlighted in yellow in different apps??

  dmesg warning: "w1_master_driver w1_bus_master_1"
Posted by: skyeyedoc - 02-12-2020, 12:04 PM - Forum: General discussion - Replies (5)

Hi everyone,
I've got a dmesg error on an OP RPi set up. It shows up every 20 to 60 seconds. It looks like this:

[ 3449.967535] w1_master_driver w1_bus_master1: Attaching one wire slave 00.420000000000 crc fa
[ 3449.973480] w1_master_driver w1_bus_master1: Family 0 for 00.420000000000.fa is not registered.
[ 3501.926482] w1_master_driver w1_bus_master1: Attaching one wire slave 00.c20000000000 crc 76
[ 3501.932354] w1_master_driver w1_bus_master1: Family 0 for 00.c20000000000.76 is not registered.

Because this concerns a wire-1 error,  I'm guessing it's Pypilot related.

The OP box is an RPi3B+ running a fully updated version 1.2.0alpha release. It has a dAISy AIS hat, and that hat, in turn, has an MPU9255 installed on its i2c bus. Other usb devices plugged in are a GPS puck, and an RS485 serial adapter for NMEA0183 out.

I don't recall seeing this before in any of my work setting the box up. My web searches haven't helped. The system does run an instance of Pypilot with that MPU, but no motor controller. (I hope to be able to forward its data to a wifi connected TinyPilot we use, but that project is down the road for now)

(I don't think it's connected, but I should mention that just prior to seeing this I was tinkering in dnsmasq.conf, and dhcpd.conf. That's caused another problem, but I'll post on that separately.)

1. Where is this message coming from?
2. Is this notice important. Should I be concerned about it? If so, what is the correction?

Thanks for thinking about this!


  VNH2SP30 motor driver issue
Posted by: kellogs - 02-12-2020, 07:06 AM - Forum: General discussion - Replies (4)

Hello Sean and everyone, 

I am attempting to use the Monster Moto Shield as my motor driver with an Arduino Uno. Wired everything up, powered up and my motor won't budge, even with a PWM of 100%. 
Pulled DMM to measure 0.54V in one direction and 1.84V in the other on the output pins.
Then took out the motor and again DMM: 1.84V in both directions.
Input is a healthy 12.4V lead acid battery. Any idea as to what might be going on ? 

Thank you