Hallo Wer sein JK-BMS in das VANPi System integrieren möchte hier eine kleine Anleitung. “Eigene Gefahr”
- SSH-Verbindung zum PI herstellen: Verbinde dich zunächst per SSH mit deinem Raspberry Pi.
- Installiere benötigte Python-Pakete: Führe die folgenden Befehle aus, um die erforderlichen Python-Pakete zu installieren:
sudo python3 -m pip install cysystemd --break-system-packages
sudo python3 -m pip install mppsolar[systemd] --break-system-packages
sudo python3 -m pip install mppsolar[BLE] --break-system-packages
Teste die Installation: Überprüfe die Installation, indem du den Befehl mpp-solar -h ausführst. Dies sollte dir eine Hilfeanzeige für das mpp-solar-Tool anzeigen.
BLE Scann durchführen:
sudo timeout -s SIGINT 5 hcitool -i hci0 lescan
Erstelle einen Node-RED-Flow: Um die wichtigsten Daten aus dem BMS auszulesen und zu verarbeiten, kannst du den folgenden Node-RED-Flow verwenden:Hier ist der Flow-Code zum Kopieren und Einfügen:
[
{
"id": "f2c95db5.ba59a",
"type": "tab",
"label": "Scanning",
"disabled": false,
"info": "Examples of how to scan for devices"
},
{
"id": "551e6c77c5a2914d",
"type": "inject",
"z": "f2c95db5.ba59a",
"name": "trigger",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "60",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "[]",
"payloadType": "bin",
"x": 520,
"y": 520,
"wires": [
[
"f3c6603ceff4716f"
]
]
},
{
"id": "f3c6603ceff4716f",
"type": "exec",
"z": "f2c95db5.ba59a",
"command": "jkbms -p "Hier muss die BLE MAC hin" -P jkv11 --getstatus",
"addpay": "",
"append": "",
"useSpawn": "false",
"timer": "",
"winHide": false,
"oldrc": false,
"name": "",
"x": 830,
"y": 520,
"wires": [
[
"bde08d0317ee3a2b"
],
[],
[]
]
},
{
"id": "bde08d0317ee3a2b",
"type": "file",
"z": "f2c95db5.ba59a",
"name": "",
"filename": "pekaway/bms",
"filenameType": "str",
"appendNewline": true,
"createDir": true,
"overwriteFile": "true",
"encoding": "none",
"x": 1200,
"y": 500,
"wires": [
[]
]
},
{
"id": "a0d27092352f7903",
"type": "file in",
"z": "f2c95db5.ba59a",
"name": "",
"filename": "pekaway/bms",
"filenameType": "str",
"format": "utf8",
"chunk": false,
"sendError": false,
"encoding": "none",
"allProps": false,
"x": 1200,
"y": 580,
"wires": [
[
"21778b93134db594"
]
]
},
{
"id": "a3bdb66ba18b9c2f",
"type": "switch",
"z": "f2c95db5.ba59a",
"name": "",
"property": "payload",
"propertyType": "msg",
"rules": [
{
"t": "cont",
"v": "voltage_cell01",
"vt": "str"
},
{
"t": "cont",
"v": "voltage_cell02",
"vt": "str"
},
{
"t": "cont",
"v": "voltage_cell03",
"vt": "str"
},
{
"t": "cont",
"v": "voltage_cell04",
"vt": "str"
},
{
"t": "cont",
"v": "battery_t1",
"vt": "str"
},
{
"t": "cont",
"v": "battery_t2",
"vt": "str"
},
{
"t": "cont",
"v": "battery_voltage",
"vt": "str"
},
{
"t": "cont",
"v": "current_discharge",
"vt": "str"
},
{
"t": "cont",
"v": "current_charge",
"vt": "str"
},
{
"t": "cont",
"v": "percent_remain",
"vt": "str"
},
{
"t": "cont",
"v": "percent_remain",
"vt": "str"
}
],
"checkall": "true",
"repair": false,
"outputs": 11,
"x": 1470,
"y": 580,
"wires": [
[],
[],
[],
[],
[],
[],
[],
[],
[],
[],
[]
]
},
{
"id": "21778b93134db594",
"type": "split",
"z": "f2c95db5.ba59a",
"name": "",
"splt": "\\n",
"spltType": "str",
"arraySplt": 1,
"arraySpltType": "len",
"stream": false,
"addname": "",
"x": 1350,
"y": 580,
"wires": [
[
"a3bdb66ba18b9c2f"
]
]
},
{
"id": "72a2cbc48f39bfd8",
"type": "inject",
"z": "f2c95db5.ba59a",
"name": "trigger",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "66",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "[]",
"payloadType": "bin",
"x": 1040,
"y": 580,
"wires": [
[
"a0d27092352f7903"
]
]
}
]