signalk-autopilot

signalk-autopilot is composed of 2 modules:

• A graphical interface that emulates a Raymarine remote control
  To be able to acknowledge pilot related alarms through the GUI you need to install the signalk-alarm-silencer plugin.
• A back-end API described below.

This current only supports Raymarine NMEA 2000 Autopilots, but I'll be adding support for other autopilots as needed.

API

All messages to plugin are done using PUT requests. These can be done via HTTP or over WebSockets.

Detailed info on PUT and Request/Response

Http:

PUT http://localhost:3000/signalk/v1/api/vessels/self/steering/autopilot/target/headingMagnetic
{
  "value": 1.52,
}

Delta:

{
  "context": "vessels.self",
  "requestId": "184743-434373-348483",
  "put": {
    "path": "steering.autopilot.target.headingMagnetic",
    "value": 1.52
  }
}

Advance Waypoint

PUT http://localhost:3000/signalk/v1/api/vessels/self/steering/autopilot/actions/advanceWaypoint
{
  "value": 1,
}

Set Autopilot State

The value can be auto, wind, route, or standby

PUT http://localhost:3000/signalk/v1/api/vessels/self/steering/autopilot/state
{
  "value": "auto",
}

Change Target Heading or Wind Angle

The value is in degrees and is the amount to change. So when in auto at a heading of 180, a value of -10 will change the target heading would be changed to 170

PUT http://localhost:3000/signalk/v1/api/vessels/self/steering/autopilot/actions/adjustHeading
{
  "value": -10,
}

Tack to port or starboard

The value is port or starboard.

PUT http://localhost:3000/signalk/v1/api/vessels/self/steering/autopilot/actions/tack
{
  "value": "port",
}

Target Heading

The value is the heading in radians.

PUT http://localhost:3000/signalk/v1/api/vessels/self/steering/autopilot/target/headingMagnetic
{
  "value": 1.52,
}

Target Wind Angle

The value is the wind angle in radians.

PUT http://localhost:3000/signalk/v1/api/vessels/self/steering/autopilot/target/windAngleApparent
{
  "value": 1.52,
}