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Title
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1 -RS485-BL – Waterproof RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
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1 1  (% style="text-align:center" %)
2 -[[image:1652947681187-144.png||height="385" width="385"]]
2 +[[image:1653266934636-343.png||height="385" width="385"]]
3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 -**RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
8 8  
9 -
10 10  **Table of Contents:**
11 11  
12 12  
... ... @@ -60,7 +60,7 @@
60 60  * Power Consumption (exclude RS485 device):
61 61  ** Idle: 6uA@3.3v
62 62  
63 -*
62 +*
64 64  ** 20dB Transmit: 130mA@3.3v
65 65  
66 66  **Interface for Model:**
... ... @@ -303,87 +303,101 @@
303 303  )))
304 304  )))
305 305  
305 +=== 3.3.2 Configure sensors ===
306 306  
307 +(((
308 +Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**.
309 +)))
307 307  
311 +(((
312 +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.
313 +)))
308 308  
309 -1.
310 -11.
311 -111. Configure sensors
312 -
313 -Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands AT+CFGDEV.
314 -
315 -
316 -When user issue an AT+CFGDEV command, Each 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.
317 -
318 -|**AT Commands**|**Description**|**Example**
319 -|AT+CFGDEV|(((
315 +(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
316 +|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
317 +|AT+CFGDEV|(% style="width:418px" %)(((
320 320  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
321 321  
322 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
320 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
323 323  
324 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
325 -)))|AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
322 +mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
323 +)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
326 326  
327 327  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
328 328  
327 +=== 3.3.3 Configure read commands for each sampling ===
329 329  
330 -
331 -
332 -
333 -1.
334 -11.
335 -111. Configure read commands for each sampling
336 -
329 +(((
337 337  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.
331 +)))
338 338  
339 -
333 +(((
340 340  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.
335 +)))
341 341  
342 -
337 +(((
343 343  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
339 +)))
344 344  
345 -
341 +(((
346 346  This section describes how to achieve above goals.
343 +)))
347 347  
348 -
345 +(((
349 349  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
347 +)))
350 350  
351 -
349 +(((
352 352  **Command from RS485-BL to Sensor:**
351 +)))
353 353  
353 +(((
354 354  RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
355 +)))
355 355  
356 -
357 +(((
357 357  **Handle return from sensors to RS485-BL**:
359 +)))
358 358  
361 +(((
359 359  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**
363 +)))
360 360  
365 +* (((
366 +**AT+DATACUT**
367 +)))
361 361  
362 -* **AT+DATACUT**
363 -
369 +(((
364 364  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.
371 +)))
365 365  
373 +* (((
374 +**AT+SEARCH**
375 +)))
366 366  
367 -* **AT+SEARCH**
368 -
377 +(((
369 369  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.
379 +)))
370 370  
371 -
381 +(((
372 372  **Define wait timeout:**
383 +)))
373 373  
385 +(((
374 374  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
387 +)))
375 375  
376 -
389 +(((
377 377  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
391 +)))
378 378  
379 -
380 380  **Examples:**
381 381  
382 382  Below are examples for the how above AT Commands works.
383 383  
384 -
385 385  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
386 386  
399 +(% border="1" class="table-bordered" %)
387 387  |(((
388 388  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
389 389  
... ... @@ -396,9 +396,9 @@
396 396  
397 397  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
398 398  
399 -
400 400  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
401 401  
414 +(% border="1" class="table-bordered" %)
402 402  |(((
403 403  **AT+SEARCHx=aa,xx xx xx xx xx**
404 404  
... ... @@ -416,7 +416,7 @@
416 416  
417 417  The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
418 418  
419 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
432 +[[image:1652954654347-831.png]]
420 420  
421 421  
422 422  1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
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477 477  
478 478  
479 479  1.
480 -11.
493 +11.
481 481  111. Compose the uplink payload
482 482  
483 483  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.**
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541 541  
542 542  
543 543  
544 -1.
545 -11.
557 +1.
558 +11.
546 546  111. Uplink on demand
547 547  
548 548  Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
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555 555  
556 556  
557 557  
558 -1.
559 -11.
571 +1.
572 +11.
560 560  111. Uplink on Interrupt
561 561  
562 562  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
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570 570  AT+INTMOD=3  Interrupt trigger by rising edge.
571 571  
572 572  
573 -1.
586 +1.
574 574  11. Uplink Payload
575 575  
576 576  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
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632 632  
633 633  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
634 634  
635 -1.
636 -11.
648 +1.
649 +11.
637 637  111. Common Commands:
638 638  
639 639  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]]
640 640  
641 641  
642 -1.
643 -11.
655 +1.
656 +11.
644 644  111. Sensor related commands:
645 645  
646 646  ==== Choose Device Type (RS485 or TTL) ====
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946 946  
947 947  
948 948  
949 -1.
962 +1.
950 950  11. Buttons
951 951  
952 952  |**Button**|**Feature**
953 953  |**RST**|Reboot RS485-BL
954 954  
955 -1.
968 +1.
956 956  11. +3V3 Output
957 957  
958 958  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
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970 970  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
971 971  
972 972  
973 -1.
986 +1.
974 974  11. +5V Output
975 975  
976 976  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
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990 990  
991 991  
992 992  
993 -1.
1006 +1.
994 994  11. LEDs
995 995  
996 996  |**LEDs**|**Feature**
997 997  |**LED1**|Blink when device transmit a packet.
998 998  
999 -1.
1012 +1.
1000 1000  11. Switch Jumper
1001 1001  
1002 1002  |**Switch Jumper**|**Feature**
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1042 1042  
1043 1043  
1044 1044  
1045 -1.
1058 +1.
1046 1046  11. Common AT Command Sequence
1047 1047  111. Multi-channel ABP mode (Use with SX1301/LG308)
1048 1048  
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1061 1061  
1062 1062  ATZ
1063 1063  
1064 -1.
1065 -11.
1077 +1.
1078 +11.
1066 1066  111. Single-channel ABP mode (Use with LG01/LG02)
1067 1067  
1068 1068  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
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1137 1137  [[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]]
1138 1138  
1139 1139  
1140 -1.
1153 +1.
1141 1141  11. How to change the LoRa Frequency Bands/Region?
1142 1142  
1143 1143  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1144,7 +1144,7 @@
1144 1144  
1145 1145  
1146 1146  
1147 -1.
1160 +1.
1148 1148  11. How many RS485-Slave can RS485-BL connects?
1149 1149  
1150 1150  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]].
... ... @@ -1161,7 +1161,7 @@
1161 1161  
1162 1162  
1163 1163  
1164 -1.
1177 +1.
1165 1165  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1166 1166  
1167 1167  It might about the channels mapping. Please see for detail.
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