[SOLVED] restart Signal K from script

[longjohn119]

"I have to restart Signal K, about 30 sec after booting."

you need to wait longer i have done the same thing, sk needs some time  .i replaced the startup sound in op with a mp3 i like, when the songs done everything is reporting right in sk,

well, I waited a couple of minutes, but nothing settles down correctly - I have to restart SK manually to get correct  readings.

@Sailoog: I have a 1W-temp sensor (DS18B20) on exhaust, whose reading is translated by NMEA-Generator to $OCMTW-Sentence, which in turn is send to the cockpit instrument.

After a fresh boot, the reading for 1W-temp on NMEA diagnostic output is -273.1 - the cockpit instrument won't show anything as this value is out of range. I need to restart SK manually - round about 30sec to 1 min after boot - to get correct values, e.g. 15.3°C on a cold motor.
As I want OP to run completely headless, I need to automate this restart - that's why I asked for a "how-to"

thanks a lot
Christian

I'm having a similar problem with converting my heading sensor as well as temp and pressure from a BME280 to NMEA sentences. When I start it up everything reports back zero to OpenCPN as well to my Elite 7 Ti plotter/finder. If I VNC into the Pi, and do an SK diagnostic the values are correct in Signal K just not being translated to NMEA but if I restart the Signal K then everything works as designed and is stable.

Since I always run a Windows tablet it's not a real big deal, just an extra minute of setup time when I first get on the water but it makes an otherwise professional type setup (I even have a Pimoroni On/Off Shim installed for push button foolproof start up and shutdown) kind of unprofessional and being a professional engineer it's driving me crazy and kicking in my engineering OCD ....... 

Just for the record my setup consists of a dAISy AIS hat and a NEO M8N GPS module in one box fed with a 1 ft cable to an FT232 USB serial converter on a Pi3, a 9 DOF IMU and a BME280 temp humidity pressure sensor mounted in a Stevenson Screen fed to the Pi with another 1 ft cable and the NMEA in/out from my Lowrance Elite 7 Ti finder/plotter fed to a pair of RS-422 to USB converters which sends heading, GPS and AIS to the finder and receives depth (DBT, DPT) and water temp (MTW) sentences from the finder.  I'm using 4 conductor plus drain shielded data cable and 4 pin aviation plugs and jacks to tie everything together and everything is in custom designed 3D printed white enclosures.