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Nikolay2017-11-07 18:49:38
Arduino
Nikolay, 2017-11-07 18:49:38

How to send raw data from RS 485 over wifi?

There is a temperature control controller and it has an rs-485 interface, sending it a 0x1B command - you can get the current values ​​\u200b\u200bin the form of a response of 16 hex bytes.
Question: how to organize the transmission of a request and a response directly to the "raw-hex" server?
There is a wifi network nearby.
Can I use esp8266 somehow?

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3 answer(s)
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Fixid, 2017-11-07
@Fixid

Use esp8266. You can even write in micropython

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aol-nnov, 2017-11-07
@aol-nnov

You need an rs485-wifi bridge. Then come up with a protocol over tcp and drive data to this bridge. It will accept, decompress the payload and broadcast it to the com port. And then back.

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Andrey Skorzhinsky, 2017-11-08
@AndyKorg

Modbus TCP / RTU RS-485 + WEB server

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