if I receive 7 set of data from RX, Receive one at time.
0xcd,0x00,0x00,0x00,0x00
0xcd,0x01,0x00,0x00,0x00
0xcd,0x02,0x00,0x00,0x00
0xcd,0x03,0x00,0x00,0x00
0xcd,0x04,0x00,0x00,0x00
0xcd,0x05,0x00,0x00,0x00
0xcd,0x06,0x00,0x00,0x00
So which node can be use to judge which data it is?
My mean is I send it from TX and receive it from RX, So how can I identify then to do another
process?
Start by reading and attempting to understand all posts sent to this forum. If you had been doing that you would have seen several very similar questions here since you joined, along with the suggestion of using the buffer parser node. Also you would have seen suggestions that if you have control of the device transmitting the data then send JSON not raw data.
Edit: I don't mean read all the posts in the whole forum, just watch new ones as they come in. That way you will learn s great deal.
But I have second question is :
I have a set of data from RX, About 34 bytes(9 kind of data).
So I hope when I receice the data then I can show the value,
But how? Use which node is better...
Without seeing the data or knowing its content, it is difficult to help however the node-red-contrib-buffer-parser (node) - Node-RED node will be able to translate the bytes into meaningful values.
I think for is can not :
Cause every set of data I need return msg.payload, It will exit function node ...
So, Let me thinking.............................................................................................