From ae3509c4b448378d6aed2fa2fd337619ee8c3066 Mon Sep 17 00:00:00 2001 From: Carsten Schmiemann Date: Mon, 22 May 2023 19:30:40 +0200 Subject: [PATCH] Try Batrium native 2.0 integration, but mandatory datapoints missing --- dbus_batrium_native2/batrium.py | 208 +++++++++++++ dbus_batrium_native2/dbus_batrium_native.py | 308 ++++++++++++++++++++ dbus_batrium_native2/requirements.sh | 3 + dbus_batrium_native2/service/run | 3 + 4 files changed, 522 insertions(+) create mode 100644 dbus_batrium_native2/batrium.py create mode 100644 dbus_batrium_native2/dbus_batrium_native.py create mode 100644 dbus_batrium_native2/requirements.sh create mode 100644 dbus_batrium_native2/service/run diff --git a/dbus_batrium_native2/batrium.py b/dbus_batrium_native2/batrium.py new file mode 100644 index 0000000..cab435c --- /dev/null +++ b/dbus_batrium_native2/batrium.py @@ -0,0 +1,208 @@ +#!/usr/bin/env python3 + +import sys +import os +import logging +import itertools + +from time import time +from datetime import datetime +import can +import struct +from argparse import ArgumentParser + +VERSION = '1.0' + +class BatriumBattery(can.Listener): + def __init__(self, connection): + self.hw_version = 0 + self.sw_version = 0 + self.capacity = 2.2 + self.maxChargeVoltage = 0 + self.numberOfModules = 3 + self.soc = 0 + self.soh = 0 + self.voltage = 0 + self.current = 0 + self.temperature = 0 + self.maxCellTemperature = 0 + self.maxCellTemperatureId = 0 + self.minCellTemperature = 0 + self.minCellTemperatureId = 0 + #self.cellVoltages_min = dict() + #self.cellVoltages_max = dict() + #self.cellTemperatures = dict() + #self.cellBypassTemperatures = dict() + #self.cellBypassPWM = dict() + self.maxCellVoltage = 0 + self.maxCellVoltageId = 0 + self.minCellVoltage = 0 + self.minCellVoltageId = 0 + self.maxChargeCurrent = 0 + self.maxDischargeCurrent = 0 + self.updated = -1 + #self.TimeToEmpty = 0 + #self.TimeToFull = 0 + self.AhToEmpty = 0 + #self.AhToFull = 0 + self.NumberInBypass = 0 + #self.alarm_high_temperature = 0 + #self.alarm_high_voltage = 0 + #self.alarm_low_temperature = 0 + #self.alarm_low_voltage = 0 + #self.alarm_low_soc = 0 + #self.alarm_high_charge_current = 0 + #self.alarm_high_discharge_current = 0 + + self._ci = can.interface.Bus(channel=connection, bustype='socketcan') + + # check connection and that reported system voltage roughly matches configuration + found = False + msg = None + + while True: + try: + msg = self._ci.recv(timeout=10) + except can.CanError: + logging.error("Canbus error") + + if msg == None: + #timeout no system connected + logging.error("No messages on canbus %s received. Check connection and speed." % connection) + break; + + elif msg.arbitration_id == 0x01: + logging.info("Found Batrium BMS on %s" % connection) + found = True + break; + + def on_message_received(self, msg): + self.updated = msg.timestamp + + if msg.arbitration_id == 0x00: + self.hw_version = (((msg.data[1] * 256 + (1 << 8)) + msg.data[0] + (1 << 8)) ) + self.sw_version = (((msg.data[3] * 256 + (1 << 8)) + msg.data[2] + (1 << 8)) ) + self.serial = ((msg.data[7] * 256) + (msg.data[6] * 256) + (msg.data[5] * 256) + msg.data[4]) + (1 << 32) + logging.debug("HW Version: %d, SW Version: %d, Serialnumber: %d", self.hw_version, self.sw_version, self.serial) + + elif msg.arbitration_id == 0x01: + self.minCellVoltage = ((msg.data[1] * 256) + msg.data[0]) * 0.001 + self.maxCellVoltage = ((msg.data[3] * 256) + msg.data[2]) * 0.001 + #self.avgCellVoltage = ((msg.data[5] * 256) + msg.data[4]) * 0.01 + self.minCellVoltageId = msg.data[6] + self.maxCellVoltageId = msg.data[7] + logging.debug("MinCellVolt %1.3fV (ID: %d), MaxCellVolt %1.3fV (ID: %d)", self.minCellVoltage, self.minCellVoltageId, self.maxCellVoltage, self.maxCellVoltageId) + + elif msg.arbitration_id == 0x02: + self.minCellTemperature = msg.data[0] - 40 + self.maxCellTemperature = msg.data[1] - 40 + self.temperature = msg.data[2] - 40 + self.minCellTemperatureId = msg.data[3] + self.maxCellTemperatureId = msg.data[4] + logging.debug("MinCellTemp: %d (ID: %d), MaxCellTemp: %d (ID: %d), AverageTemp: %d", self.minCellTemperature, self.minCellTemperatureId, self.maxCellTemperature, self.maxCellTemperatureId, self.temperature) + + elif msg.arbitration_id == 0x03: + self.NumberInBypass = msg.data[0] + logging.debug("Cell number in bypass: %d", self.NumberInBypass) + + if msg.arbitration_id == 0x04: + logging.debug(msg) + self.voltage = ((msg.data[1] * 256) + msg.data[0]) * 0.1 + self.current = int(((msg.data[3] * 256) + msg.data[2]) * 0.001) + self.power = int(((msg.data[5] * 256) + msg.data[4]) * 0.1) + logging.debug("Voltage: %2.2fV, Current: %2.2fA, Power: %2.2fW", self.voltage, self.current, self.power) + + if msg.arbitration_id == 0x05: + self.soc = (msg.data[1] * 256 + msg.data[0]) * 0.01 + self.soh = (msg.data[3] * 256 + msg.data[2]) * 0.01 + self.AhToEmpty = (msg.data[5] * 256 + msg.data[4]) * 0.1 + self.capacity = (msg.data[7] * 256 + msg.data[6]) * 0.1 + logging.debug("SOC: %2.2f%%, SOH: %2.2f%%, Ah Remain: %2.2fAh, Capacity: %2.2fAh", self.soc, self.soh, self.AhToEmpty, self.capacity) + + elif msg.arbitration_id == 0x06: + self.maxChargeVoltage = ((msg.data[1] * 256) + msg.data[0]) * 0.1 + self.maxChargeCurrent = ((msg.data[3] * 256) + msg.data[2]) * 0.1 + #self.maxDischargeVoltage = ((msg.data[5] * 256) + msg.data[4]) * 0.01 + self.maxDischargeCurrent = ((msg.data[7] * 256) + msg.data[6]) * 0.1 + logging.debug("MaxChargeVoltage (CVL) %2.2fA, MaxChargeCurrent (CCL) %2.2fV, MaxDischargeCurrent %2.2fA", self.maxChargeCurrent, self.maxChargeVoltage, self.maxDischargeCurrent) + + #elif msg.arbitration_id == 0x00111900: + # logging.debug("Ah 0x00111900 received") + + # message never arrived, batrium fw bug? + + #self.AhToFull = round((struct.unpack('>f', bytearray([msg.data[3], msg.data[2], msg.data[1], msg.data[0]])))[0] * 0.001, 2) + #self.AhToEmpty = round((struct.unpack('>f', bytearray([msg.data[7], msg.data[6], msg.data[5], msg.data[4]])))[0] * 0.001, 2) + #self.capacity = self.AhToEmpty + self.AhToFull + #logging.debug("Ah to Full: %2.2f", self.AhToFull) + #logging.debug("Ah to Empty: %2.2f", self.AhToEmpty) + #logging.debug("Capacity: %2.2f", self.capacity) + + #elif msg.arbitration_id == 0x00140100: + # self.alarm_high_temperature = (msg.data[2] >> 3) & 1 + # logging.debug("High Temp Alarm: %d", self.alarm_high_temperature) + # self.alarm_high_voltage = (msg.data[2] >> 1) & 1 + # logging.debug("High Voltage Alarm: %d", self.alarm_high_voltage) + # self.alarm_low_temperature = (msg.data[2] >> 2) & 1 + # logging.debug("Low Temperature Alarm: %d", self.alarm_low_temperature) + # self.alarm_low_voltage = (msg.data[2] >> 0) & 1 + # logging.debug("Low Voltage Alarm: %d", self.alarm_low_voltage) + # self.alarm_high_charge_current = (msg.data[3] >> 3) & 1 + # logging.debug("High Charge Current Alarm: %d", self.alarm_high_charge_current) + # self.alarm_high_discharge_current = (msg.data[3] >> 4) & 1 + # logging.debug("High Discharge Current Alarm: %d", self.alarm_high_discharge_current) + + #elif msg.arbitration_id == 0x00111800: + # self.TimeToEmpty = ((msg.data[5] * 256) + msg.data[4] * 60) + # logging.debug("Time to empty: %dmin", self.TimeToEmpty) + + #elif msg.arbitration_id == 0x00111700: + # self.TimeToFull = ((msg.data[5] * 256) + msg.data[4] * 60) + # logging.debug("Time to full: %dmin", self.TimeToFull) + + #elif ((msg.arbitration_id >= 0x001D1101) and (msg.arbitration_id <= 0x001D11F9)): + # cell_id = msg.arbitration_id & 0xff + #logging.debug("Cell ID: %d, Voltage_min: %2.2f, Voltage_max: %2.2f, Temperature: %d, Bypass_Temperature: %d, BypassPWM: %d", cell_id, ((msg.data[1] * 256) + msg.data[0]) * 0.001, ((msg.data[3] * 256) + msg.data[2]) * 0.001, msg.data[4] - 40, msg.data[5] - 40, msg.data[6]) + # self.cellVoltages_min[cell_id] = ((msg.data[1] * 256) + msg.data[0]) * 0.001 + # self.cellVoltages_max[cell_id] = ((msg.data[3] * 256) + msg.data[2]) * 0.001 + # self.cellTemperatures[cell_id] = msg.data[4] - 40 + # self.cellBypassTemperatures[cell_id] = msg.data[5] - 40 + # self.cellBypassPWM[cell_id] = msg.data[6] + # self.numberOfModules = len(self.cellVoltages_min.keys()) + + def prnt(self): + print("SOC: %2d, I: %2.2fA, U: %2.2fV, T:%2.1fC" % (self.soc, self.current, self.voltage, self.maxCellTemperature)) + print("MinCellVolt: %1.2f, MaxCellVolt: %1.2f CellVoltDelta: %1.2f" % (self.minCellVoltage, self.maxCellVoltage, self.maxCellVoltage-self.minCellVoltage)) + print("MaxChargeCurrent (CCL): %4.1f A MaxChargeVoltage (CVL): %2.2f V" % (self.maxChargeCurrent, self.maxChargeVoltage)) + print("Number of modules found: %1.0f" % (self.numberOfModules)) + +# === All code below is to simply run it from the commandline for debugging purposes === +def main(): + logging.basicConfig( format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s', + datefmt='%Y-%m-%d %H:%M:%S', + level=logging.DEBUG, + stream=sys.stdout, + ) + + logging.info('Starting dbus_batrium_native listener') + + logger = can.Logger('logfile.asc') + + bat = BatriumBattery(connection='can0') + + listeners = [ + logger, # Regular Listener object + bat + ] + + notifier = can.Notifier(bat._ci, listeners) + for msg in bat._ci: + if msg.arbitration_id == 0x001: + bat.prnt() + + # Clean-up + notifier.stop() + bat._ci.shutdown() + +if __name__ == "__main__": + main() diff --git a/dbus_batrium_native2/dbus_batrium_native.py b/dbus_batrium_native2/dbus_batrium_native.py new file mode 100644 index 0000000..e2e54f0 --- /dev/null +++ b/dbus_batrium_native2/dbus_batrium_native.py @@ -0,0 +1,308 @@ +#!/usr/bin/env python3 + +""" +A class to put a battery service on the dbus, according to victron standards, with constantly updating +paths. + +""" +from gi.repository import GLib +import platform +import argparse +import logging +import sys +import os +import dbus +import itertools +import math + +from time import time +from datetime import datetime +import struct +from argparse import ArgumentParser + +from batrium import * + + +# our own packages +sys.path.insert(1, os.path.join(os.path.dirname(__file__), '/opt/victronenergy/dbus-systemcalc-py/ext/velib_python')) +from vedbus import VeDbusService +from ve_utils import exit_on_error +from settingsdevice import SettingsDevice + +VERSION = '1.0' + +def handle_changed_setting(setting, oldvalue, newvalue): + logging.debug('setting changed, setting: %s, old: %s, new: %s' % (setting, oldvalue, newvalue)) + + +class DbusBatteryService: + def __init__(self, servicename, deviceinstance, productname='Batrium BMS', connection='can0'): + self.minUpdateDone = 0 + self.secUpdateDone = 0 + self.dailyResetDone = 0 + self.lastUpdated = 0 + self.cell_balanced = 0 + self.ChargedEnergy = 0 + self.DischargedEnergy = 0 + self._bat = BatriumBattery(connection=connection) + self.notifier = can.Notifier(self._bat._ci, [self._bat]) + + try: + self._dbusservice = VeDbusService(servicename+'.socketcan_'+connection+'_di'+str(deviceinstance)) + except: + exit + + # Create the management objects, as specified in the ccgx dbus-api document + self._dbusservice.add_path('/Mgmt/ProcessName', __file__) + self._dbusservice.add_path('/Mgmt/ProcessVersion', VERSION + ' running on Python ' + platform.python_version()) + self._dbusservice.add_path('/Mgmt/Connection', connection) + + # Create the mandatory objects + self._dbusservice.add_path('/DeviceInstance', deviceinstance) + self._dbusservice.add_path('/ProductId', 0xB038) + self._dbusservice.add_path('/ProductName', productname) + self._dbusservice.add_path('/FirmwareVersion', None, writeable=True) + self._dbusservice.add_path('/HardwareVersion', None, writeable=True) + self._dbusservice.add_path('/Connected', 0) + # Create battery specific objects + self._dbusservice.add_path('/Status', None, writeable=True) + self._dbusservice.add_path('/Dc/0/Temperature', None, writeable=True) + self._dbusservice.add_path('/Info/BatteryLowVoltage', None, writeable=True) + self._dbusservice.add_path('/Alarms/CellImbalance', None, writeable=True) + self._dbusservice.add_path('/Alarms/LowVoltage', None, writeable=True) + self._dbusservice.add_path('/Alarms/HighVoltage', None, writeable=True) + self._dbusservice.add_path('/Alarms/HighDischargeCurrent', None, writeable=True) + self._dbusservice.add_path('/Alarms/HighChargeCurrent', None, writeable=True) + self._dbusservice.add_path('/Alarms/LowSoc', None, writeable=True) + self._dbusservice.add_path('/Alarms/LowTemperature', None, writeable=True) + self._dbusservice.add_path('/Alarms/HighTemperature', None, writeable=True) + self._dbusservice.add_path('/Balancing', None, writeable=True) + self._dbusservice.add_path('/System/HasTemperature', 1) + self._dbusservice.add_path('/System/NrOfBatteries', 1) + self._dbusservice.add_path('/System/NrOfModulesOnline', None, writeable=True) + self._dbusservice.add_path('/System/NrOfModulesOffline', 0) + self._dbusservice.add_path('/System/NrOfModulesBlockingDischarge', 0) + self._dbusservice.add_path('/System/NrOfModulesBlockingCharge', 0) + self._dbusservice.add_path('/System/NrOfBatteriesBalancing', None, writeable=True) + self._dbusservice.add_path('/System/BatteriesSeries', None, writeable=True) + self._dbusservice.add_path('/System/MinVoltageCellId', None, writeable=True) + self._dbusservice.add_path('/System/MaxVoltageCellId', None, writeable=True) + self._dbusservice.add_path("/System/MinTemperatureCellId", None, writeable=True) + self._dbusservice.add_path("/System/MaxTemperatureCellId", None, writeable=True) + + self._settings = SettingsDevice( + bus=dbus.SystemBus() if (platform.machine() == 'armv7l') else dbus.SessionBus(), + supportedSettings={ + 'AvgDischarge': ['/Settings/Batrium/AvgerageDischarge', 0.0,0,0], + 'TotalAhDrawn': ['/Settings/Batrium/TotalAhDrawn', 0.0,0,0], + 'TimeLastFull': ['/Settings/Batrium/TimeLastFull', 0.0 ,0,0], + 'MinCellVoltage': ['/Settings/Batrium/MinCellVoltage', 0.0,0.0,0.0], + 'MaxCellVoltage': ['/Settings/Batrium/MaxCellVoltage', 0.0,0.0,0.0], + 'interval': ['/Settings/Batrium/Interval', 200, 200, 200] + }, + eventCallback=handle_changed_setting) + + + self._summeditems = { + '/System/MaxCellVoltage': {'gettext': '%.3F V'}, + '/System/MinCellVoltage': {'gettext': '%.3F V'}, + '/Dc/0/Voltage': {'gettext': '%.2F V'}, + '/Dc/0/Current': {'gettext': '%.2F A'}, + '/Dc/0/Power': {'gettext': '%.0F W'}, + '/Soc': {'gettext': '%.0F%%'}, + '/Soh': {'gettext': '%.0F%%'}, + '/History/TotalAhDrawn': {'gettext': '%.0F Ah'}, + '/History/DischargedEnergy': {'gettext': '%.2F kWh'}, + '/History/ChargedEnergy': {'gettext': '%.2F kWh'}, + '/History/AverageDischarge': {'gettext': '%.2F kWh'}, + '/TimeToGo': {'gettext': '%.0F s'}, + '/ConsumedAmphours': {'gettext': '%.1F Ah'}, + '/System/MinCellTemperature': {'gettext': '%.1F °C'}, + '/System/MaxCellTemperature': {'gettext': '%.1F °C'}, + '/Capacity': {'gettext': '%.1F Ah'}, + '/InstalledCapacity': {'gettext': '%.1F Ah'}, + '/Info/MaxChargeVoltage': {'gettext': '%.1F V'}, + '/Info/MaxChargeCurrent': {'gettext': '%.1F A'}, + '/Info/MaxDischargeCurrent': {'gettext': '%.1F A'} + } + + for path in self._summeditems.keys(): + self._dbusservice.add_path(path, value=None, gettextcallback=self._gettext) + + self._dbusservice['/History/AverageDischarge'] = self._settings['AvgDischarge'] + self._dbusservice['/History/TotalAhDrawn'] = self._settings['TotalAhDrawn'] + self._dbusservice.add_path('/History/TimeSinceLastFullCharge', 0) + self._dbusservice.add_path('/History/MinCellVoltage', self._settings['MinCellVoltage']) + self._dbusservice.add_path('/History/MaxCellVoltage', self._settings['MaxCellVoltage']) + + self._dbusservice['/Status'] = 0 + + logging.info("History cell voltage min: %.3f, max: %.3f, totalAhDrawn: %d", + self._settings['MinCellVoltage'], self._settings['MaxCellVoltage'], self._settings['TotalAhDrawn']) + + if self._bat.soc <= 99: + self._dbusservice['/Soc'] = self._bat.soc + elif self._bat.soc > 100: + self._dbusservice['/Soc'] = 100 + + GLib.timeout_add( self._settings['interval'], exit_on_error, self._update) + + def _gettext(self, path, value): + item = self._summeditems.get(path) + if item is not None: + return item['gettext'] % value + return str(value) + + def __del__(self): + self._safe_history() + logging.info('Stopping dbus_Batrium') + + def _safe_history(self): + logging.debug('Saving history to localsettings') + self._settings['AvgDischarge'] = self._dbusservice['/History/AverageDischarge'] + self._settings['TotalAhDrawn'] = self._dbusservice['/History/TotalAhDrawn'] + self._settings['MinCellVoltage'] = self._dbusservice['/History/MinCellVoltage'] + self._settings['MaxCellVoltage'] = self._dbusservice['/History/MaxCellVoltage'] + + def _daily_stats(self): + if (self._dbusservice['/History/DischargedEnergy'] == 0): return + logging.info("Updating stats, SOC: %d, Discharged: %.2f, Charged: %.2f ",self._bat.soc, self._dbusservice['/History/DischargedEnergy'], self._dbusservice['/History/ChargedEnergy']) + self._dbusservice['/History/AverageDischarge'] = (6*self._dbusservice['/History/AverageDischarge'] + self._dbusservice['/History/DischargedEnergy'])/7 #rolling week + self._dbusservice['/History/ChargedEnergy'] = 0 + self.ChargedEnergy = 0 + self._dbusservice['/History/DischargedEnergy'] = 0 + self.DischargedEnergy = 0 + dt = datetime.now() - datetime.fromtimestamp( float(self._settings['TimeLastFull']) ) + + self.dailyResetDone = datetime.now().day + + def _update(self): + #logging.debug("Update CAN %d, Time Now: %d", self._bat.updated, self.lastUpdated) + time = datetime.now() + self.lastUpdated = time.timestamp() + + if (self._bat.updated != -1 and self.lastUpdated == 0) or ((self.lastUpdated - self._bat.updated) < 10): + self._dbusservice['/Connected'] = 1 + else: + self._dbusservice['/Connected'] = 0 + + if self._bat.soc <= 99: + self._dbusservice['/Soc'] = self._bat.soc + elif (self._bat.soc > 99) and (self.cell_balanced): + self._dbusservice['/Soc'] = 100 + + self._dbusservice['/Soh'] = self._bat.soh + + if self._bat.NumberInBypass != 0: + self._dbusservice['/Balancing'] = 1 + else: + self._dbusservice['/Balancing'] = 0 + + self._dbusservice['/FirmwareVersion'] = self._bat.sw_version + self._dbusservice['/HardwareVersion'] = self._bat.hw_version + self._dbusservice['/ConsumedAmphours'] = ((100 - self._dbusservice['/Soc']) / 100) * self._bat.capacity + self._dbusservice['/InstalledCapacity'] = self._bat.capacity + self._dbusservice['/Capacity'] = self._bat.capacity + self._dbusservice['/Dc/0/Current'] = self._bat.current + self._dbusservice['/Dc/0/Voltage'] = self._bat.voltage + self._dbusservice['/Dc/0/Power'] = self._bat.power + self._dbusservice['/Dc/0/Temperature'] = self._bat.maxCellTemperature + + self._dbusservice['/Info/MaxChargeCurrent'] = self._bat.maxChargeCurrent + self._dbusservice['/Info/MaxDischargeCurrent'] = self._bat.maxDischargeCurrent + + if self._bat.maxChargeVoltage != 0: + self._dbusservice['/Info/MaxChargeVoltage'] = self._bat.maxChargeVoltage + + self._dbusservice['/System/NrOfModulesOnline'] = self._bat.numberOfModules + self._dbusservice['/System/NrOfBatteriesBalancing'] = self._bat.NumberInBypass + self._dbusservice['/System/BatteriesSeries'] = self._bat.numberOfModules + + #update energy statistics daily at 6:00, + if datetime.now().hour == 6 and datetime.now().minute == 0 and datetime.now().day != self.dailyResetDone : + self._daily_stats() + + now = datetime.now().time() + if now.minute != self.minUpdateDone: + self.minUpdateDone = now.minute + + self._dbusservice['/System/MinCellTemperature'] = self._bat.minCellTemperature + self._dbusservice['/System/MaxCellTemperature'] = self._bat.maxCellTemperature + self._dbusservice['/System/MinTemperatureCellId'] = self._bat.minCellTemperatureId + self._dbusservice['/System/MaxTemperatureCellId'] = self._bat.maxCellTemperatureId + + self._dbusservice['/System/MaxCellVoltage'] = self._bat.maxCellVoltage + if (self._bat.maxCellVoltage > self._dbusservice['/History/MaxCellVoltage'] ): + self._dbusservice['/History/MaxCellVoltage'] = self._bat.maxCellVoltage + logging.info("New maximum cell voltage: %f", self._bat.maxCellVoltage) + self._dbusservice['/System/MinCellVoltage'] = self._bat.minCellVoltage + if (0 < self._bat.minCellVoltage < self._dbusservice['/History/MinCellVoltage'] ): + self._dbusservice['/History/MinCellVoltage'] = self._bat.minCellVoltage + logging.info("New minimum cell voltage: %f", self._bat.minCellVoltage) + + self._dbusservice['/System/MaxVoltageCellId'] = self._bat.maxCellVoltageId + self._dbusservice['/System/MinVoltageCellId'] = self._bat.minCellVoltageId + + if self._bat.NumberInBypass == self._bat.numberOfModules: + self.cell_balanced = True + elif self._bat.NumberInBypass == 0: + self.cell_balanced = False + + self._safe_history() + + if now.second != self.secUpdateDone: + self.secUpdateDone = now.second + #Workaround because of missing messages of Batrium BMS + if self._bat.power > 0: + self.ChargedEnergy += (self._bat.power / 3600.0) / 1000 + if self._bat.power < 0: + self.DischargedEnergy += (self._bat.power / 3600.0) / 1000 + self._dbusservice['/History/ChargedEnergy'] = abs(self.ChargedEnergy) + self._dbusservice['/History/DischargedEnergy'] = abs(self.DischargedEnergy) + + return True + +def main(): + parser = ArgumentParser(description='dbus_batrium', add_help=True) + parser.add_argument('-d', '--debug', help='enable debug logging', + action='store_true') + parser.add_argument('-i', '--interface', help='CAN interface') + parser.add_argument('-p', '--print', help='print only') + + args = parser.parse_args() + + logging.basicConfig( format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s', + datefmt='%Y-%m-%d %H:%M:%S', + level=(logging.DEBUG if args.debug else logging.INFO), + handlers=[ + logging.FileHandler("%s/current.log" % (os.path.dirname(os.path.realpath(__file__)))), + logging.StreamHandler() + ]) + + if not args.interface: + logging.info('No CAN interface specified, using default can0') + args.interface = 'can0' + + logging.info('Starting dbus_batrium %s on %s ' % + (VERSION, args.interface)) + + logging.debug('Setup main loop') + + from dbus.mainloop.glib import DBusGMainLoop + # Have a mainloop, so we can send/receive asynchronous calls to and from dbus + DBusGMainLoop(set_as_default=True) + + logging.debug('Setup dbus service') + + battery_output = DbusBatteryService( + servicename='com.victronenergy.battery', + connection = args.interface, + deviceinstance = 0, + ) + + logging.debug('Connected to dbus, and switching over to GLib.MainLoop() (= event based)') + mainloop = GLib.MainLoop() + mainloop.run() + +if __name__ == "__main__": + main() diff --git a/dbus_batrium_native2/requirements.sh b/dbus_batrium_native2/requirements.sh new file mode 100644 index 0000000..2486b34 --- /dev/null +++ b/dbus_batrium_native2/requirements.sh @@ -0,0 +1,3 @@ +opkg update +opkg install python3-pip +pip3 install python-can diff --git a/dbus_batrium_native2/service/run b/dbus_batrium_native2/service/run new file mode 100644 index 0000000..05780a2 --- /dev/null +++ b/dbus_batrium_native2/service/run @@ -0,0 +1,3 @@ +#!/bin/sh +exec 2>&1 +exec softlimit -d 100000000 -s 1000000 -a 100000000 python /data/dbus_batrium_native2/dbus_batrium_native.py