rvc #

RV-C (Recreation Vehicle CAN) protocol layer for Dart, built on top of package:j1939. Provides RvcEcu with RV-C NAME defaults, DGN definitions for common RV subsystems, and command/status helpers.

Features #

• RvcEcu: J1939 ECU with RV-C industry group defaults
• RvcRegistry: pre-loaded with standard RV-C DGN definitions
• DGN categories: DC power, tanks, HVAC, lighting, generator, charger, inverter, date/time/alarm
• Command helpers: sendCommand() and sendCommandFields() for DGN command pairs
• Shared codec: uses package:can_codec for bit-level encode/decode

Platform support #

Getting started #

dependencies:
  rvc: ^0.1.0

Requires a CAN interface (physical or virtual) and the j1939 native library.

Usage #

Query the DGN registry #

import 'package:rvc/rvc.dart';

void main() {
  final registry = RvcRegistry.standard();
  print('${registry.dgnNumbers.length} DGNs loaded');

  final dgn = registry.lookup(0x1FFAD); // DC_SOURCE_STATUS_1
  if (dgn != null) {
    print('${dgn.name}: ${dgn.fields.length} fields');
  }
}

Decode an RV-C frame #

import 'package:can_codec/can_codec.dart';
import 'package:rvc/rvc.dart';

void decodeFrame(int dgn, Uint8List data) {
  final registry = RvcRegistry.standard();
  final def = registry.lookup(dgn);
  if (def != null) {
    final fields = decode(data, def);
    print('$fields');
  }
}

Executables #

dart run rvc:rvc_demo    # RV-C node demo
dart run rvc:rv_sim      # RV system simulator

Testing #

dart test

License #

Apache 2.0 -- see LICENSE for details.