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VictronVEDirectArduino

Light-weight Arduino library to read basic data using the VE.Direct protocol from Victron Energy

Built as part of a larger project, now making it available separately in case others find it useful.

Setup:

  • An Arduino(ish) board
  • A Victron Energy device that sends serial data using the text version of the VE.Direct protocol
  • A 5v to 3.3v serial converter (BMV is 3.3v - don't plug it directly into an Arduino!)
  • Plugged into the Arduino on a serial port (eg Serial1, Serial2 etc)
  • See also: https://www.victronenergy.com/live/vedirect_protocol:faq
  • Developed and tested with a BMV-700 battery monitor
  • Distributed under an MIT license - see LICENCE.txt
  • Developed and not tested with a MPPT 100/30

Provides:

  • Access to basic energy readings - Volts, Power, Current, State of Charge (SOC)
  • A diagnostic "full dump" of everything coming from the device

Usage:

#include "VEDirect.h"

VEDirect my_bmv(Serial3);

if my_bmv.begin() {
    my_int32 = my_bmv.read(VE_SOC);
}

// VE_SOC, VE_VOLTAGE, VE_CURRENT, VE_POWER