<
From version < 35.5 >
edited by Xiaoling
on 2022/06/02 15:48
To version < 33.1 >
edited by Xiaoling
on 2022/06/02 15:36
>
Change comment: Uploaded new attachment "image-20220602153621-1.png", version {1}

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... ... @@ -77,6 +77,7 @@
77 77  * Packet engine up to 256 bytes with CRC.
78 78  
79 79  
80 +
80 80  == 1.3 Features ==
81 81  
82 82  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -89,6 +89,7 @@
89 89  * Support Interrupt uplink (Since hardware version v1.2)
90 90  
91 91  
93 +
92 92  == 1.4 Applications ==
93 93  
94 94  * Smart Buildings & Home Automation
... ... @@ -99,6 +99,7 @@
99 99  * Smart Factory
100 100  
101 101  
104 +
102 102  == 1.5 Firmware Change log ==
103 103  
104 104  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -287,6 +287,7 @@
287 287  )))
288 288  
289 289  
293 +
290 290  === 3.3.2 Configure sensors ===
291 291  
292 292  (((
... ... @@ -306,37 +306,81 @@
306 306  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
307 307  
308 308  
313 +
309 309  === 3.3.3 Configure read commands for each sampling ===
310 310  
311 311  (((
312 -During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
317 +RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
318 +)))
313 313  
320 +(((
321 +During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
322 +)))
323 +
324 +(((
314 314  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
326 +)))
315 315  
328 +(((
316 316  This section describes how to achieve above goals.
330 +)))
317 317  
318 -During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
332 +(((
333 +During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
334 +)))
319 319  
336 +(((
337 +**Command from RS485-BL to Sensor:**
338 +)))
320 320  
321 -**Each RS485 commands include two parts:**
340 +(((
341 +RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
342 +)))
322 322  
323 -~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
344 +(((
345 +**Handle return from sensors to RS485-BL**:
346 +)))
324 324  
325 -2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
348 +(((
349 +After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
350 +)))
326 326  
327 -3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
352 +* (((
353 +**AT+DATACUT**
354 +)))
328 328  
356 +(((
357 +When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
358 +)))
329 329  
360 +* (((
361 +**AT+SEARCH**
362 +)))
363 +
364 +(((
365 +When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
366 +)))
367 +
368 +(((
369 +**Define wait timeout:**
370 +)))
371 +
372 +(((
373 +Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
374 +)))
375 +
376 +(((
330 330  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
378 +)))
331 331  
380 +**Examples:**
332 332  
333 333  Below are examples for the how above AT Commands works.
334 334  
384 +**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
335 335  
336 -**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
337 -
338 -(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
339 -|(% style="width:496px" %)(((
386 +(% border="1" class="table-bordered" %)
387 +|(((
340 340  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
341 341  
342 342  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
... ... @@ -344,15 +344,49 @@
344 344  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
345 345  )))
346 346  
395 +(((
347 347  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.
397 +)))
348 348  
349 -In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
399 +(((
400 +In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
401 +)))
350 350  
403 +(((
404 +**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
405 +)))
351 351  
407 +(% border="1" class="table-bordered" %)
408 +|(((
409 +**AT+SEARCHx=aa,xx xx xx xx xx**
410 +
411 +* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
412 +* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
413 +
414 +
415 +)))
416 +
417 +**Examples:**
418 +
419 +~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
420 +
421 +If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
422 +
423 +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**
424 +
425 +[[image:1653269403619-508.png]]
426 +
427 +2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
428 +
429 +If we set AT+SEARCH1=2, 1E 56 34+31 00 49
430 +
431 +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**
432 +
433 +[[image:1653269438444-278.png]]
434 +
352 352  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
353 353  
354 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
355 -|(% style="width:722px" %)(((
437 +|(((
356 356  **AT+DATACUTx=a,b,c**
357 357  
358 358  * **a: length for the return of AT+COMMAND**
... ... @@ -360,37 +360,48 @@
360 360  * **c: define the position for valid value.  **
361 361  )))
362 362  
363 -**Examples:**
445 +Examples:
364 364  
365 365  * Grab bytes:
366 366  
367 -[[image:image-20220602153621-1.png]]
449 +[[image:1653269551753-223.png||height="311" width="717"]]
368 368  
369 -
370 370  * Grab a section.
371 371  
372 -[[image:image-20220602153621-2.png]]
453 +[[image:1653269568276-930.png||height="325" width="718"]]
373 373  
374 -
375 375  * Grab different sections.
376 376  
377 -[[image:image-20220602153621-3.png]]
457 +[[image:1653269593172-426.png||height="303" width="725"]]
378 378  
379 -
380 -)))
459 +(% style="color:red" %)**Note:**
381 381  
461 +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.
462 +
463 +Example:
464 +
465 +(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
466 +
467 +(% style="color:red" %)AT+SEARCH1=1,1E 56 34
468 +
469 +(% style="color:red" %)AT+DATACUT1=0,2,1~~5
470 +
471 +(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
472 +
473 +(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
474 +
475 +(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
476 +
477 +[[image:1653269618463-608.png]]
478 +
382 382  === 3.3.4 Compose the uplink payload ===
383 383  
384 384  (((
385 385  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.**
386 -
387 -
388 388  )))
389 389  
390 390  (((
391 -(% style="color:#037691" %)**Examples: AT+DATAUP=0**
392 -
393 -
486 +(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
394 394  )))
395 395  
396 396  (((
... ... @@ -411,10 +411,8 @@
411 411  
412 412  [[image:1653269759169-150.png||height="513" width="716"]]
413 413  
414 -
415 415  (% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
416 416  
417 -
418 418  Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
419 419  
420 420  Final Payload is
... ... @@ -465,8 +465,8 @@
465 465  
466 466  
467 467  
468 -1.
469 -11.
559 +1.
560 +11.
470 470  111. Uplink on Interrupt
471 471  
472 472  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -480,7 +480,7 @@
480 480  AT+INTMOD=3  Interrupt trigger by rising edge.
481 481  
482 482  
483 -1.
574 +1.
484 484  11. Uplink Payload
485 485  
486 486  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -542,15 +542,15 @@
542 542  
543 543  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
544 544  
545 -1.
546 -11.
636 +1.
637 +11.
547 547  111. Common Commands:
548 548  
549 549  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
550 550  
551 551  
552 -1.
553 -11.
643 +1.
644 +11.
554 554  111. Sensor related commands:
555 555  
556 556  ==== Choose Device Type (RS485 or TTL) ====
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856 856  
857 857  
858 858  
859 -1.
950 +1.
860 860  11. Buttons
861 861  
862 862  |**Button**|**Feature**
863 863  |**RST**|Reboot RS485-BL
864 864  
865 -1.
956 +1.
866 866  11. +3V3 Output
867 867  
868 868  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -880,7 +880,7 @@
880 880  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
881 881  
882 882  
883 -1.
974 +1.
884 884  11. +5V Output
885 885  
886 886  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -900,13 +900,13 @@
900 900  
901 901  
902 902  
903 -1.
994 +1.
904 904  11. LEDs
905 905  
906 906  |**LEDs**|**Feature**
907 907  |**LED1**|Blink when device transmit a packet.
908 908  
909 -1.
1000 +1.
910 910  11. Switch Jumper
911 911  
912 912  |**Switch Jumper**|**Feature**
... ... @@ -952,7 +952,7 @@
952 952  
953 953  
954 954  
955 -1.
1046 +1.
956 956  11. Common AT Command Sequence
957 957  111. Multi-channel ABP mode (Use with SX1301/LG308)
958 958  
... ... @@ -971,8 +971,8 @@
971 971  
972 972  ATZ
973 973  
974 -1.
975 -11.
1065 +1.
1066 +11.
976 976  111. Single-channel ABP mode (Use with LG01/LG02)
977 977  
978 978  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1047,7 +1047,7 @@
1047 1047  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1048 1048  
1049 1049  
1050 -1.
1141 +1.
1051 1051  11. How to change the LoRa Frequency Bands/Region?
1052 1052  
1053 1053  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1054,7 +1054,7 @@
1054 1054  
1055 1055  
1056 1056  
1057 -1.
1148 +1.
1058 1058  11. How many RS485-Slave can RS485-BL connects?
1059 1059  
1060 1060  The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>path:#downlink_A8]].
... ... @@ -1071,7 +1071,7 @@
1071 1071  
1072 1072  
1073 1073  
1074 -1.
1165 +1.
1075 1075  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1076 1076  
1077 1077  It might about the channels mapping. Please see for detail.
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