#Raspberry pi wifi power plotter update#

I built a low power windows system years ago (before that raspberry thing was released) Works great! The opencpn AIS display must be as good as there is & having engine temperature displayed as well is really useful though I had to do a little trick to turn engine temp into water temp NMEA message so the opencpn dashboard can display it all on one screen. These days I just leave the Pi on all the time as it logs various stuff to a database, battery voltage & engine temperature, SOG, COG etc. Passage planning often will be done on a laptop the the navobj.xml files copied across to the Pi & tablet, you need to be a little careful to keep everything in sync or you can lose tracks or other data but otherwise it works well with bookmarks in the Filezilla program to connect to the Pi or tablet (need to run a wifi file transfer app to get the address to log on to) With the monitor off the Pi pulls about 0.3A.

#Raspberry pi wifi power plotter update#

The monitor down below rarely gets used, mostly just to update the excellent logbook konni plugin. The tablet runs Opencpn android with AIS,GPS being fed over wifi from the Pi along with a host of other voltage/temperature data.

Underway, I have a sony xperia tablet on a bracket in the cockpit under the sprayhood - bright enough even in sunshine. It's mounted below the chart table with a samsung 19' 12v monitor running straight off the boat batteries. I've been using a Pi onboard with Openplotter for a while now, really powerful system!