Changes for page RS485-BL – Waterproof RS485 to LoRaWAN Converter
Last modified by Xiaoling on 2025/04/23 15:57
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... ... @@ -282,29 +282,29 @@ 282 282 RS485-BL default UART settings is **9600, no parity, stop bit 1**. If the sensor has a different settings, user can change the RS485-BL setting to match. 283 283 ))) 284 284 285 -(% border="1" style="background-color:#ffffcc; color:green; width:510px" %) 286 -|=(% style="width: 12 1px;" %)(((285 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 286 +|=(% style="width: 120px;" %)((( 287 287 ((( 288 288 **AT Commands** 289 289 ))) 290 -)))|=(% style="width: 1 14px;" %)(((290 +)))|=(% style="width: 190px;" %)((( 291 291 ((( 292 292 **Description** 293 293 ))) 294 -)))|=(% style="width: 226px;" %)(((294 +)))|=(% style="width: 190px;" %)((( 295 295 ((( 296 296 **Example** 297 297 ))) 298 298 ))) 299 -|(% style="width:12 1px" %)(((299 +|(% style="width:120px" %)((( 300 300 ((( 301 301 AT+BAUDR 302 302 ))) 303 -)))|(% style="width:1 14px" %)(((303 +)))|(% style="width:190px" %)((( 304 304 ((( 305 305 Set the baud rate (for RS485 connection). Default Value is: 9600. 306 306 ))) 307 -)))|(% style="width: 226px" %)(((307 +)))|(% style="width:190px" %)((( 308 308 ((( 309 309 ((( 310 310 AT+BAUDR=9600 ... ... @@ -317,11 +317,11 @@ 317 317 ))) 318 318 ))) 319 319 ))) 320 -|(% style="width:12 1px" %)(((320 +|(% style="width:120px" %)((( 321 321 ((( 322 322 AT+PARITY 323 323 ))) 324 -)))|(% style="width:1 14px" %)(((324 +)))|(% style="width:190px" %)((( 325 325 ((( 326 326 ((( 327 327 Set UART parity (for RS485 connection) ... ... @@ -333,7 +333,7 @@ 333 333 Default Value is: no parity. 334 334 ))) 335 335 ))) 336 -)))|(% style="width: 226px" %)(((336 +)))|(% style="width:190px" %)((( 337 337 ((( 338 338 ((( 339 339 AT+PARITY=0 ... ... @@ -346,11 +346,11 @@ 346 346 ))) 347 347 ))) 348 348 ))) 349 -|(% style="width:12 1px" %)(((349 +|(% style="width:120px" %)((( 350 350 ((( 351 351 AT+STOPBIT 352 352 ))) 353 -)))|(% style="width:1 14px" %)(((353 +)))|(% style="width:190px" %)((( 354 354 ((( 355 355 ((( 356 356 Set serial stopbit (for RS485 connection) ... ... @@ -362,7 +362,7 @@ 362 362 Default Value is: 1bit. 363 363 ))) 364 364 ))) 365 -)))|(% style="width: 226px" %)(((365 +)))|(% style="width:190px" %)((( 366 366 ((( 367 367 ((( 368 368 AT+STOPBIT=0 for 1bit ... ... @@ -383,6 +383,7 @@ 383 383 ))) 384 384 385 385 386 + 386 386 === 3.3.2 Configure sensors === 387 387 388 388 ((( ... ... @@ -393,19 +393,20 @@ 393 393 When user issue an (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) command, Each (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) equals to send a command to the RS485 or TTL sensors. This command will only run when user input it and won’t run during each sampling. 394 394 ))) 395 395 396 -(% border="1" style="background-color:#ffffcc; color:green; width: 806px" %)397 -|**AT Commands**|(% style="width: 418px" %)**Description**|(% style="width:256px" %)**Example**398 -|AT+CFGDEV|(% style="width: 418px" %)(((397 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 398 +|=(% style="width: 120px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example** 399 +|AT+CFGDEV|(% style="width:120px" %)((( 399 399 This command is used to configure the RS485/TTL devices; they won’t be used during sampling. 400 400 401 401 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx, 402 402 403 403 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command 404 -)))|(% style="width: 256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m405 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m 405 405 406 406 Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>||anchor="HRS485DebugCommand28AT2BCFGDEV29"]]. 407 407 408 408 410 + 409 409 === 3.3.3 Configure read commands for each sampling === 410 410 411 411 ((( ... ... @@ -472,117 +472,209 @@ 472 472 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**. 473 473 ))) 474 474 477 +((( 475 475 **Examples:** 479 +))) 476 476 481 +((( 477 477 Below are examples for the how above AT Commands works. 483 +))) 478 478 485 +((( 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: 487 +))) 480 480 481 -(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:50 1px" %)489 +(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:500px" %) 482 482 |(% style="width:498px" %)((( 491 +((( 483 483 **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m** 493 +))) 484 484 495 +((( 485 485 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent** 497 +))) 486 486 499 +((( 487 487 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command** 488 488 ))) 502 +))) 489 489 504 +((( 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. 506 +))) 491 491 508 +((( 492 492 In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same. 510 +))) 493 493 512 +((( 494 494 **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx. 514 +))) 495 495 496 -(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:5 80px" %)516 +(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:500px" %) 497 497 |(% style="width:577px" %)((( 518 +((( 498 498 **AT+SEARCHx=aa,xx xx xx xx xx** 520 +))) 499 499 500 -* **aa: 1: prefix match mode; 2: prefix and suffix match mode**501 -* *xxxxxxxx xx:matchstring. Max 5 bytesforprefix and5 bytesfor suffix**522 +* ((( 523 +**aa: 1: prefix match mode; 2: prefix and suffix match mode** 502 502 ))) 525 +* ((( 526 +**xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix** 527 +))) 528 +))) 503 503 530 +((( 504 504 **Examples:** 532 +))) 505 505 534 +((( 506 506 1)For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49 536 +))) 507 507 538 +((( 508 508 If we set AT+SEARCH1=1,1E 56 34. (max 5 bytes for prefix) 540 +))) 509 509 542 +((( 510 510 The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)**2e 30 58 5f 36 41 30 31 00 49** 544 +))) 511 511 546 +((( 512 512 [[image:1653271044481-711.png]] 548 +))) 513 513 550 +((( 514 514 2)For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49 552 +))) 515 515 554 +((( 516 516 If we set AT+SEARCH1=2, 1E 56 34+31 00 49 556 +))) 517 517 558 +((( 518 518 Device will search the bytes between 1E 56 34 and 31 00 49. So it is(% style="background-color:yellow" %) **2e 30 58 5f 36 41 30** 560 +))) 519 519 562 +((( 520 520 [[image:1653271276735-972.png]] 564 +))) 521 521 566 +((( 522 522 **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes. 568 +))) 523 523 524 -(% style="background-color:#4f81bd; color:white; width: 729px" %)570 +(% style="background-color:#4f81bd; color:white; width:510px" %) 525 525 |(% style="width:726px" %)((( 572 +((( 526 526 **AT+DATACUTx=a,b,c** 574 +))) 527 527 528 -* **a: length for the return of AT+COMMAND** 529 -* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.** 530 -* **c: define the position for valid value. ** 576 +* ((( 577 +**a: length for the return of AT+COMMAND** 531 531 ))) 579 +* ((( 580 +**b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.** 581 +))) 582 +* ((( 583 +**c: define the position for valid value. ** 584 +))) 585 +))) 532 532 587 +((( 533 533 **Examples:** 589 +))) 534 534 535 -* Grab bytes: 591 +* ((( 592 +Grab bytes: 593 +))) 536 536 595 +((( 537 537 [[image:1653271581490-837.png||height="313" width="722"]] 597 +))) 538 538 599 +((( 600 + 601 +))) 539 539 540 -* Grab a section. 603 +* ((( 604 +Grab a section. 605 +))) 541 541 607 +((( 542 542 [[image:1653271648378-342.png||height="326" width="720"]] 609 +))) 543 543 611 +((( 612 + 613 +))) 544 544 545 -* Grab different sections. 615 +* ((( 616 +Grab different sections. 617 +))) 546 546 619 +((( 547 547 [[image:1653271657255-576.png||height="305" width="730"]] 621 +))) 548 548 549 549 ((( 624 +((( 550 550 (% style="color:red" %)**Note:** 551 551 ))) 627 +))) 552 552 553 553 ((( 630 +((( 554 554 AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0. 555 555 ))) 633 +))) 556 556 557 557 ((( 636 +((( 558 558 **Example:** 559 559 ))) 639 +))) 560 560 561 561 ((( 642 +((( 562 562 (% style="color:red" %)AT+COMMAND1=11 01 1E D0,0 563 563 ))) 645 +))) 564 564 565 565 ((( 648 +((( 566 566 (% style="color:red" %)AT+SEARCH1=1,1E 56 34 567 567 ))) 651 +))) 568 568 569 569 ((( 654 +((( 570 570 (% style="color:red" %)AT+DATACUT1=0,2,1~~5 571 571 ))) 657 +))) 572 572 573 573 ((( 660 +((( 574 574 (% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49 575 575 ))) 663 +))) 576 576 577 577 ((( 666 +((( 578 578 (% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49 579 579 ))) 669 +))) 580 580 581 581 ((( 672 +((( 582 582 (% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36 583 583 ))) 675 +))) 584 584 677 +((( 585 585 [[image:1653271763403-806.png]] 679 +))) 586 586 587 587 588 588 === 3.3.4 Compose the uplink payload === ... ... @@ -589,10 +589,14 @@ 589 589 590 590 ((( 591 591 Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.** 686 + 687 + 592 592 ))) 593 593 594 594 ((( 595 595 (% style="color:#037691" %)**Examples: AT+DATAUP=0** 692 + 693 + 596 596 ))) 597 597 598 598 ((( ... ... @@ -1396,7 +1396,6 @@ 1396 1396 * (% style="color:blue" %)**RU864**(%%): frequency bands RU864 1397 1397 * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865 1398 1398 1399 - 1400 1400 = 9. Packing Info = 1401 1401 1402 1402 (((