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Last modified by Xiaoling on 2025/04/23 15:57
From version 40.52
edited by Xiaoling
on 2022/06/06 10:50
Change comment: There is no comment for this version
To version 40.54
edited by Xiaoling
on 2022/06/06 10:51
Change comment: There is no comment for this version

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382 382  )))
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385 385  === 3.3.2 Configure sensors ===
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472 472  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
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475 475  **Examples:**
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477 477  Below are examples for the how above AT Commands works.
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479 479  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
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481 481  (% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:500px" %)
482 482  |(% style="width:498px" %)(((
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483 483  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
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485 485  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
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487 487  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
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489 489  
490 490  For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
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