Current-only measurement for emonPi

[glyn.hudson]

@wittmannf

For now, I will follow Paul’s suggestion and change emonhub.conf to USA 110v mode (not quite sure how, yet)

http://guide.openenergymonitor.org/setup/north-america/

@wittmannf

Is there some guide to update the firmware? Robert mentioned that it is described in the Hardware Docs. The only related command that I found was this one (in the section Uploading Arduino Firmware):

$ avrdude -v -c arduino -p ATMEGA328P -P /dev/ttyAMA0 -b 115200 -U flash:w:sketch_name.hex

Correct, however emonhub must be stopped first to free up the serial port. See script:

https://github.com/openenergymonitor/emonpi/blob/master/firmware/compiled/update

@wittmannf

However, the files that I should edit for the firmware are .ino, so what am I missing here?

emonpi firmware files are in ~/emonpi/firmware/src

https://github.com/openenergymonitor/emonpi/tree/master/firmware/src

PlatformIO can be used to compile and upload the firmware direct on the emonPi see blog post example:

Part 1/3: PlatformIO open-source embedded development ecosystem