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6. MQTT topic & message structure
A homeassistant message will be sent for each reading, here is an example for the Voltage.Reading field.
{
"device_class": "voltage",
"unit_of_measurement": "V",
"state_class": "measurement",
"name": "PackVoltage",
"icon": "mdi:lightning-bolt",
"state_topic": "PylonToMQTT/Main/stat/readings/Pack1",
"unique_id": "Rpi_Pack1_PackVoltage",
"value_template": "{{ value_json.PackVoltage.Reading }}",
"availability_topic": "PylonToMQTT/Main/tele/LWT",
"pl_avail": "Online",
"pl_not_avail": "Offline",
"device": {
"name": "Pack1",
"via_device": "PylonToMQTT",
"hw_version": "1B470102010238D",
"sw_version": "V1.2.1",
"manufacturer": "ClassicDIY",
"model": "P16S100A-1B470-1.04",
"identifiers": "Pack1_1B470102010238D"
}
}
{
"Version" : "P16S100A-1B470-1.04",
"BarCode" : "1B470102010238D"
}
State:
00: normal.
01: below lower limit.
02: above higher limit.
240: other error.
{
"Cells" : {
"Cell_1" : {
"Reading" : 3.533,
"State" : 2
},
"Cell_2" : {
"Reading" : 3.43,
"State" : 1
},
"Cell_3" : {
"Reading" : 3.364,
"State" : 2
},
"Cell_4" : {
"Reading" : 3.361,
"State" : 2
},
"Cell_5" : {
"Reading" : 3.409,
"State" : 1
},
"Cell_6" : {
"Reading" : 3.362,
"State" : 1
},
"Cell_7" : {
"Reading" : 3.363,
"State" : 1
},
"Cell_8" : {
"Reading" : 3.364,
"State" : 0
},
"Cell_9" : {
"Reading" : 3.442,
"State" : 0
},
"Cell_10" : {
"Reading" : 3.361,
"State" : 0
},
"Cell_11" : {
"Reading" : 3.362,
"State" : 0
},
"Cell_12" : {
"Reading" : 3.362,
"State" : 0
},
"Cell_13" : {
"Reading" : 3.363,
"State" : 0
},
"Cell_14" : {
"Reading" : 3.362,
"State" : 0
},
"Cell_15" : {
"Reading" : 3.363,
"State" : 0
},
"Cell_16" : {
"Reading" : 3.361,
"State" : 1
}
},
"Temps" : {
"CellTemp1_4" : {
"Reading" : 9.3,
"State" : 2
},
"CellTemp5_8" : {
"Reading" : 8.9,
"State" : 1
},
"CellTemp9_12" : {
"Reading" : 10.3,
"State" : 1
},
"CellTemp13_16" : {
"Reading" : 8.6,
"State" : 1
},
"MOS_T" : {
"Reading" : 17.1,
"State" : 1
},
"ENV_T" : {
"Reading" : 17.6,
"State" : 2
}
},
"PackCurrent" : {
"Reading" : 40.95,
"State" : 2
},
"PackVoltage" : {
"Reading" : 53.795,
"State" : 2
},
"RemainingCapacity" : 79.36,
"FullCapacity" : 101.98,
"CycleCount" : 11,
"SOC" : 77.8,
"Power" : 2202.9,
"Protect_Status" : {
"Charger_OVP" : true,
"SCP" : true,
"DSG_OCP" : true,
"CHG_OCP" : true,
"Pack_UVP" : true,
"Pack_OVP" : true,
"Cell_UVP" : true,
"Cell_OVP" : true,
"ENV_UTP" : true,
"ENV_OTP" : true,
"MOS_OTP" : true,
"DSG_UTP" : true,
"CHG_UTP" : true,
"DSG_OTP" : true,
"CHG_OTP" : true
},
"System_Status" : {
"Fully_Charged" : true,
"Heater" : true,
"AC_in" : true,
"Discharge_MOS" : true,
"Charge_MOS" : true,
"Charge_Limit" : true
},
"Fault_Status" : {
"Heater_Fault" : false,
"CCB_Fault" : false,
"Sampling_Fault" : false,
"Cell_Fault" : false,
"NTC_Fault" : false,
"DSG_MOS_Fault" : false,
"CHG_MOS_Fault" : false
},
"Alarm_Status" : {
"DSG_OC" : false,
"CHG_OC" : false,
"Pack_UV" : false,
"Pack_OV" : false,
"Cell_UV" : false,
"Cell_OV" : false,
"SOC_Low" : true,
"MOS_OT" : true,
"ENV_UT" : true,
"ENV_OT" : true,
"DSG_UT" : true,
"CHG_UT" : true,
"DSG_OT" : true,
"CHG_OT" : true
}
}