Hi, it's my first time with node-red and it's my first time here. I would like to use a stream that I downloaded from the web to be able to communicate with my pylontech battery, I know that the stream is working because many use it, but I am having problems. when i inject the character buffer to the serial port, the receiver does not arrive as i sent it. let me explain better if I send pwr / n the receiver replies that the command xwr / n does not exist, during the sending the p was changed with x. I am using a rasperry zero w with a usb to rs232 serial adapter, the adapter works and the cable (about 10 meters) is ok because with other monitoring programs it works fine. I used the serial node of the standard installation, do I need to install some other particular serial node?
Welcome to the forum @calida82
Feed the message you are passing to the serial node into a debug node and show us what it says. Also show us how you have configured the serial node.
this is the flow
[
{
"id": "22034bca12682caf",
"type": "tab",
"label": "Flow 1",
"disabled": false,
"info": "",
"env": []
},
{
"id": "b8add8525d9bc282",
"type": "group",
"z": "22034bca12682caf",
"name": "",
"style": {
"label": true
},
"nodes": [
"717af324.4d6cbc",
"33cbff76.f207b",
"b44c894.e086578",
"546456da.829698",
"4f3f9020.ef044",
"9e9f426.5a94cc",
"740d3c66.42e8d4",
"2cb13ea3.7eded2",
"3d139ecc.224d12",
"7050cec4.747c1"
],
"x": 34,
"y": 299,
"w": 852,
"h": 382
},
{
"id": "22ced6e8eb2109db",
"type": "group",
"z": "22034bca12682caf",
"style": {
"stroke": "#999999",
"stroke-opacity": "1",
"fill": "none",
"fill-opacity": "1",
"label": true,
"label-position": "nw",
"color": "#a4a4a4"
},
"nodes": [
"6c0dfdbafe3abfa1",
"d35954d4fc8dbbe7",
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"a1c3b6a194d9fa4d"
],
"x": 34,
"y": 139,
"w": 792,
"h": 122
},
{
"id": "717af324.4d6cbc",
"type": "comment",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "RS232-USB PL2303 or FTDI Conversor transparente (NO TTL)",
"info": "",
"x": 450,
"y": 340,
"wires": []
},
{
"id": "33cbff76.f207b",
"type": "debug",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 770,
"y": 400,
"wires": []
},
{
"id": "b44c894.e086578",
"type": "serial request",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "Get Pylon Batteries",
"serial": "2353242cd4cb757b",
"x": 550,
"y": 400,
"wires": [
[
"33cbff76.f207b"
]
]
},
{
"id": "546456da.829698",
"type": "inject",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "Pylon INFO",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": true,
"onceDelay": 0.1,
"topic": "Get the Pylon values INFO",
"payload": "[105,110,102,111,13]",
"payloadType": "bin",
"x": 150,
"y": 480,
"wires": [
[
"740d3c66.42e8d4"
]
]
},
{
"id": "4f3f9020.ef044",
"type": "inject",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "Pylon PWR",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": true,
"onceDelay": 0.1,
"topic": "Get the Pylon values PWR",
"payload": "[112,119,114,13]",
"payloadType": "bin",
"x": 150,
"y": 520,
"wires": [
[
"740d3c66.42e8d4"
]
]
},
{
"id": "9e9f426.5a94cc",
"type": "inject",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "Pylon PWRSYS",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": true,
"onceDelay": 0.1,
"topic": "Get the Pylon values PWRSYS",
"payload": "[112,119,114,115,121,115,13]",
"payloadType": "bin",
"x": 160,
"y": 560,
"wires": [
[
"740d3c66.42e8d4"
]
]
},
{
"id": "740d3c66.42e8d4",
"type": "link out",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "SendToSerialConverter",
"links": [
"2cb13ea3.7eded2"
],
"x": 345,
"y": 480,
"wires": []
},
{
"id": "2cb13ea3.7eded2",
"type": "link in",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "GetBatteryData",
"links": [
"740d3c66.42e8d4"
],
"x": 375,
"y": 400,
"wires": [
[
"b44c894.e086578"
]
]
},
{
"id": "3d139ecc.224d12",
"type": "inject",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "Pylon SOCD",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": true,
"onceDelay": 0.1,
"topic": "Get the Pylon values SOCD",
"payload": "[115,111,99,100,13]",
"payloadType": "bin",
"x": 150,
"y": 600,
"wires": [
[
"740d3c66.42e8d4"
]
]
},
{
"id": "7050cec4.747c1",
"type": "inject",
"z": "22034bca12682caf",
"g": "b8add8525d9bc282",
"name": "Pylon SOH",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": true,
"onceDelay": 0.1,
"topic": "Get the Pylon values SOH",
"payload": "[115,111,104,13]",
"payloadType": "bin",
"x": 150,
"y": 640,
"wires": [
[
"740d3c66.42e8d4"
]
]
},
{
"id": "6c0dfdbafe3abfa1",
"type": "inject",
"z": "22034bca12682caf",
"g": "22ced6e8eb2109db",
"name": "Init Long String",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": true,
"onceDelay": 0.1,
"topic": "Info",
"payload": "7E 32 30 30 31 34 36 38 32 43 30 30 34 38 35 32 30 46 43 43 33 0D",
"payloadType": "str",
"x": 160,
"y": 220,
"wires": [
[
"d35954d4fc8dbbe7"
]
]
},
{
"id": "d35954d4fc8dbbe7",
"type": "serial request",
"z": "22034bca12682caf",
"g": "22ced6e8eb2109db",
"name": "Baterías Inicio",
"serial": "7c4a0f6c1c870c6f",
"x": 420,
"y": 220,
"wires": [
[
"3af3507b8a4028f9"
]
]
},
{
"id": "3af3507b8a4028f9",
"type": "debug",
"z": "22034bca12682caf",
"g": "22ced6e8eb2109db",
"name": "Inicio Bateria 115200",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 680,
"y": 220,
"wires": []
},
{
"id": "a1c3b6a194d9fa4d",
"type": "comment",
"z": "22034bca12682caf",
"g": "22ced6e8eb2109db",
"name": "Inicio Comunicación 115200",
"info": "",
"x": 420,
"y": 180,
"wires": []
},
{
"id": "2353242cd4cb757b",
"type": "serial-port",
"serialport": "/dev/ttyUSB1",
"serialbaud": "115200",
"databits": "8",
"parity": "none",
"stopbits": "1",
"waitfor": "",
"dtr": "none",
"rts": "none",
"cts": "none",
"dsr": "none",
"newline": "$$",
"bin": "false",
"out": "char",
"addchar": "",
"responsetimeout": "2000"
},
{
"id": "7c4a0f6c1c870c6f",
"type": "serial-port",
"serialport": "/dev/ttyUSB1",
"serialbaud": "1200",
"databits": "8",
"parity": "none",
"stopbits": "1",
"waitfor": "",
"dtr": "none",
"rts": "none",
"cts": "none",
"dsr": "none",
"newline": "$$",
"bin": "false",
"out": "char",
"addchar": "",
"responsetimeout": "2000"
}
]
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