How much current does your Pi use? - Printable Version +- OpenMarine (https://forum.openmarine.net) +-- Forum: OpenPlotter (https://forum.openmarine.net/forumdisplay.php?fid=1) +--- Forum: General discussion (https://forum.openmarine.net/forumdisplay.php?fid=2) +--- Thread: How much current does your Pi use? (/showthread.php?tid=1812)

How much current does your Pi use? - PaddyB - 2019-05-23 Not much!! Something just fascinating about logging data : Battery charger was turned on just after 18:00 so you can see the current dropping slowly as the battery voltage increases.  The Pi has a hifiberry amp piggy backed so you can see when it's been streaming web radio with a little node-red which controls music player daemon through bash, radio turned on again just after 8am. The hifiberry provides 5v power as well from the battery 12v, fantastic little hifi amp - really good sound for so little power. Current measured with a INA219 into an ESP32 which sends the data as signalk which sigK then writes to an Influxdb database. New influxdb V2 cloud just released as well with a free 3 day web database, might be handy for offline data logging.  Something very satisfying about the Pi measuring itself   If anyone is interested in the setup I could do a little writeup, but if you like music/podcasts etc a hifiberry is well worth the money, clementine does a great job of playing back music or podcasts etc. My car radio pulled about half an amp!!