Have you told us which version of the serial node you are using? You can see this from the Manage Palette menu in the editor.
Hi Colin, sorry I forgot to share it.
Would you see below my node-red version is 0.19.4, as you can see below:
Best Regards,
Alex
That does not tell us the version of serial port, at least not directly. Scroll down and you should see node-red-node-serialport
Well that is the latest version.
@dceejay is it possible that there is an error in the serialport node that causes repeated buffers when splitting on a character? I know 'possible' isn't the best word there because it is certainly possible. 'Likely' doesn't sound like a good word either, but you know what I mean.
I haven't got any serial hardware so I can't try and replicate it myself.
I had a quick look at the code but didn't see anything obvious, which isn't surprising.
Hi Guys!
I changed the serial USB dongle, change from PL203 to CP2102, to check if i´ll see any changes about duplication message, but still the same behavior!
Best Regards,
Alex
Hi - most odd... can you do us a favour and try something to help us debug this ?
Find the file 25-serial.js (probably under ~/.node-red/node_modules/node-red-node-serialport directory but depend of OS etc
in there find line 82 and insert a console.out line below like this
this.port.on('data', function(msgout) {
console.log(typeof msgout, msgout.length, JSON.stringify(msgout));
node.send(msgout);
});
Then restart Node-RED and watch the console to see what gets printed...
does the length match what you expect... Does it get printed twice per one input sent ?
Hi dceejay,
I found file 25-serial.js under /usr/lib/node_modules/node-red-node -serialport/
I have a doubt if I can change this file, under directory above, as you advise me. Please let me know if i can do it?
pi@raspberrypi:/usr/lib/node_modules/node-red-node-serialport $ ls -lt
total 60
Blockquote
drwxr-xr-x 153 root root 4096 Nov 2 21:20 node_modules
drwxr-xr-x 4 root root 4096 Nov 2 21:20 locales
-rw-r--r-- 1 root root 1462 Sep 17 19:18 package.json
-rw-r--r-- 1 root root 17422 Oct 26 1985 25-serial.html
-rw-r--r-- 1 root root 19957 Oct 26 1985 25-serial.js
-rw-r--r-- 1 root root 632 Oct 26 1985 LICENSE
-rw-r--r-- 1 root root 1751 Oct 26 1985 README.md
pi@raspberrypi:/usr/lib/node_modules/node-red-node-serialport $
Blockquote
Best Regards,
Alex
Yes sure. You will need to use sudo or root to access the file but yes, that is the one.
Hi dceejay,
I already yet include the new line that you advise me on 25-serial.js and I still received twice messages, as you can see below in the palette debug log 2x 19 (149) length and 2 x 18 (164) length messages.
To explain you better: my node send 1 message and wait to receive 2 messages.
Get Version (example that i should be receive)
07:50:56.612 -> 01 02 10 10 02 10 02 10 10 03
07:50:56.694 <- 01 80 00 00 05 95 00 00 00 10 00 03
07:50:56.874 <- 01 80 10 00 05 A4 00 01 00 30 00 03
You can see bellow, the pi log and palette debug information w/ rbe node:
Blockquote
26 Nov 10:12:50 - [info] serial port /dev/ttyUSB0 opened at 115200 baud 8N1
object undefined {"payload":{"type":"Buffer","data":[1,128,2,16,2,16,2,21,241,2,16,61,2,16,73,2,16,3]},"port":"/dev/ttyUSB0"}
object undefined {"payload":{"type":"Buffer","data":[1,128,2,16,2,16,2,21,242,2,16,62,2,16,73,2,16,3]},"port":"/dev/ttyUSB0"}
26 Nov 10:12:50 - [info] [debug:43313881.a42ee8]
<Buffer 01 80 02 10 02 10 02 15 f2 02 10 3e 02 10 49 02 10 03>
object undefined {"payload":{"type":"Buffer","data":[1,128,73,2,16,2,19,100,61,2,16,147,3]},"port":"/dev/ttyUSB0"}
26 Nov 10:12:50 - [info] [debug:43313881.a42ee8]
<Buffer 01 80 49 02 10 02 13 64 3d 02 10 93 03>
object undefined {"payload":{"type":"Buffer","data":[1,128,73,2,16,2,19,100,62,2,16,144,3]},"port":"/dev/ttyUSB0"}
26 Nov 10:12:50 - [info] [debug:43313881.a42ee8]
<Buffer 01 80 49 02 10 02 13 64 3e 02 10 90 03>
26 Nov 10:13:52 - [info] Stopping modified nodes
26 Nov 10:13:52 - [info] Stopped modified nodes
26 Nov 10:13:52 - [info] Starting modified nodes
26 Nov 10:13:52 - [info] Started modified nodes
object undefined {"payload":{"type":"Buffer","data":[1,128,2,16,2,16,2,21,149,2,16,2,16,2,16,16,2,16,3]},"port":"/dev/ttyUSB0"}
26 Nov 10:14:20 - [info] [debug:43313881.a42ee8]
<Buffer 01 80 02 10 02 10 02 15 95 02 10 02 10 02 10 10 02 10 03>
object undefined {"payload":{"type":"Buffer","data":[1,128,16,2,16,2,21,164,2,16,2,17,2,16,48,2,16,3]},"port":"/dev/ttyUSB0"}
26 Nov 10:14:20 - [info] [debug:43313881.a42ee8]
<Buffer 01 80 10 02 10 02 15 a4 02 10 02 11 02 10 30 02 10 03>
object undefined {"payload":{"type":"Buffer","data":[1,128,2,16,2,16,2,21,149,2,16,2,16,2,16,16,2,16,3]},"port":"/dev/ttyUSB0"}
26 Nov 10:14:20 - [info] [debug:43313881.a42ee8]
<Buffer 01 80 02 10 02 10 02 15 95 02 10 02 10 02 10 10 02 10 03>
object undefined {"payload":{"type":"Buffer","data":[1,128,16,2,16,2,21,164,2,16,2,17,2,16,48,2,16,3]},"port":"/dev/ttyUSB0"}
26 Nov 10:14:20 - [info] [debug:43313881.a42ee8]
<Buffer 01 80 10 02 10 02 15 a4 02 10 02 11 02 10 30 02 10 03>
Blockquote
try this...
Sorry for my poor english but
0x16, 22d same your Start (0x01)
0x17, 23d same your Stop (0x03)
Example Tx:164f504e3030303017add7
16 - Start
4f - data
....
30 - data
17 - Stop
ad - crc16
d7 - crc16
function RxCompleto( vetor,msg ) {
var pos = (vetor.length - 2) -1 // subtrai 1 por que vetor inicia em 0
msg.expr1 = (vetor[ pos] == 23)
msg.expr2 = ((vetor.length==1) && (vetor[0] == 21))
return ( (msg.expr1) || (msg.expr2) );
}
........
port.on('data', (data) => {
for ( var x = 0 ; x < data.length ; x++) {
out.push( data[x])
}
if (RxCompleto(out,msg)) {
// Continue Your Code
}
//Example
//Multiple Message
27 Nov 14:01:10 - [info] Log TxRxPinPad - Tx:164453503033322020415455414c495a414e444f20202020202020544142454c4153207c20202017d5b0/DSP032 ATUALIZANDO TABELAS | հ out:(42) md5:e193281c4cc9eb3349e5125d116112d7 003/027
27 Nov 14:01:10 - [info] Log TxRxPinPad - Tx: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 03008C008C008C07698620000000000000000000SYSTEM E0F0E87000F0F00122D84004F8000010000000D84000A80000000000000000000000000000000000000000000F9F02065F2A029A039C0195059F370400000000039F370400000000000000000000000000000000Y1Z1Y3Z3D84004F8000010000000D84000A800X� out:(326) md5:f0e145a35cd87d4c1ade6339af8da53a
27 Nov 14:01:11 - [info] Log TxRxPinPad. Rx:(22) cmd:[DSP] DSP000 ,TLR000 /DSP000 ,TLR000
27 Nov 14:01:11 - [info] Log TxRxPinPad. Rx:(22) cmd:[TLR] DSP000 ,TLR000 /DSP000 ,TLR000
@aargollo - the debug log out seems to look OK after you restart there are 4 messages
<Buffer 01 80 02 10 02 10 02 15 95 02 10 02 10 02 10 10 02 10 03>
<Buffer 01 80 10 02 10 02 15 a4 02 10 02 11 02 10 30 02 10 03>
<Buffer 01 80 02 10 02 10 02 15 95 02 10 02 10 02 10 10 02 10 03>
<Buffer 01 80 10 02 10 02 15 a4 02 10 02 11 02 10 30 02 10 03>
Yes they are repeated - but that looks like that is what is being received from the other end so I don't think there is a problem there.
One final thing to try - I see you are using deploy only modified nodes Stopping modified nodes - maybe try a complete redeploy as that stops and restarts everything.
@dceejay, I agree you its look like very stranger and i thing that also from the other side. But the unique thing that cause distrust is that when i used serialport without 0x03 as split byte is working very well. Don´t worrying I´ll try to implement a code sent by aco7432.
@aco7342, thanks a lot "Muito obrigado meu conterrâneo,pela ajuda".
I´ll let us know soon about the changes!
Best Regards,
Alex
