Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 17.1 >
edited by Xiaoling
on 2022/05/19 18:04
To version < 15.5 >
edited by Xiaoling
on 2022/05/19 17:52
>
Change comment: There is no comment for this version

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... ... @@ -60,7 +60,7 @@
60 60  * Power Consumption (exclude RS485 device):
61 61  ** Idle: 6uA@3.3v
62 62  
63 -*
63 +*
64 64  ** 20dB Transmit: 130mA@3.3v
65 65  
66 66  **Interface for Model:**
... ... @@ -303,101 +303,87 @@
303 303  )))
304 304  )))
305 305  
306 -=== 3.3.2 Configure sensors ===
307 307  
308 -(((
309 -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**.
310 -)))
311 311  
312 -(((
313 -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.
314 -)))
315 315  
316 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
317 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
318 -|AT+CFGDEV|(% style="width:418px" %)(((
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|(((
319 319  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
320 320  
321 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
322 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
322 322  
323 -mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
324 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
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
325 325  
326 326  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
327 327  
328 -=== 3.3.3 Configure read commands for each sampling ===
329 329  
330 -(((
330 +
331 +
332 +
333 +1.
334 +11.
335 +111. Configure read commands for each sampling
336 +
331 331  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.
332 -)))
333 333  
334 -(((
339 +
335 335  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.
336 -)))
337 337  
338 -(((
342 +
339 339  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
340 -)))
341 341  
342 -(((
345 +
343 343  This section describes how to achieve above goals.
344 -)))
345 345  
346 -(((
348 +
347 347  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
348 -)))
349 349  
350 -(((
351 +
351 351  **Command from RS485-BL to Sensor:**
352 -)))
353 353  
354 -(((
355 355  RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
356 -)))
357 357  
358 -(((
356 +
359 359  **Handle return from sensors to RS485-BL**:
360 -)))
361 361  
362 -(((
363 363  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**
364 -)))
365 365  
366 -* (((
367 -**AT+DATACUT**
368 -)))
369 369  
370 -(((
362 +* **AT+DATACUT**
363 +
371 371  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.
372 -)))
373 373  
374 -* (((
375 -**AT+SEARCH**
376 -)))
377 377  
378 -(((
367 +* **AT+SEARCH**
368 +
379 379  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.
380 -)))
381 381  
382 -(((
371 +
383 383  **Define wait timeout:**
384 -)))
385 385  
386 -(((
387 387  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
388 -)))
389 389  
390 -(((
376 +
391 391  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
392 -)))
393 393  
379 +
394 394  **Examples:**
395 395  
396 396  Below are examples for the how above AT Commands works.
397 397  
384 +
398 398  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
399 399  
400 -(% border="1" class="table-bordered" %)
401 401  |(((
402 402  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
403 403  
... ... @@ -410,9 +410,9 @@
410 410  
411 411  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
412 412  
399 +
413 413  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
414 414  
415 -(% border="1" class="table-bordered" %)
416 416  |(((
417 417  **AT+SEARCHx=aa,xx xx xx xx xx**
418 418  
... ... @@ -491,7 +491,7 @@
491 491  
492 492  
493 493  1.
494 -11.
480 +11.
495 495  111. Compose the uplink payload
496 496  
497 497  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.**
... ... @@ -555,8 +555,8 @@
555 555  
556 556  
557 557  
558 -1.
559 -11.
544 +1.
545 +11.
560 560  111. Uplink on demand
561 561  
562 562  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.
... ... @@ -569,8 +569,8 @@
569 569  
570 570  
571 571  
572 -1.
573 -11.
558 +1.
559 +11.
574 574  111. Uplink on Interrupt
575 575  
576 576  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -584,7 +584,7 @@
584 584  AT+INTMOD=3  Interrupt trigger by rising edge.
585 585  
586 586  
587 -1.
573 +1.
588 588  11. Uplink Payload
589 589  
590 590  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -646,15 +646,15 @@
646 646  
647 647  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
648 648  
649 -1.
650 -11.
635 +1.
636 +11.
651 651  111. Common Commands:
652 652  
653 653  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]]
654 654  
655 655  
656 -1.
657 -11.
642 +1.
643 +11.
658 658  111. Sensor related commands:
659 659  
660 660  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -960,13 +960,13 @@
960 960  
961 961  
962 962  
963 -1.
949 +1.
964 964  11. Buttons
965 965  
966 966  |**Button**|**Feature**
967 967  |**RST**|Reboot RS485-BL
968 968  
969 -1.
955 +1.
970 970  11. +3V3 Output
971 971  
972 972  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -984,7 +984,7 @@
984 984  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
985 985  
986 986  
987 -1.
973 +1.
988 988  11. +5V Output
989 989  
990 990  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -1004,13 +1004,13 @@
1004 1004  
1005 1005  
1006 1006  
1007 -1.
993 +1.
1008 1008  11. LEDs
1009 1009  
1010 1010  |**LEDs**|**Feature**
1011 1011  |**LED1**|Blink when device transmit a packet.
1012 1012  
1013 -1.
999 +1.
1014 1014  11. Switch Jumper
1015 1015  
1016 1016  |**Switch Jumper**|**Feature**
... ... @@ -1056,7 +1056,7 @@
1056 1056  
1057 1057  
1058 1058  
1059 -1.
1045 +1.
1060 1060  11. Common AT Command Sequence
1061 1061  111. Multi-channel ABP mode (Use with SX1301/LG308)
1062 1062  
... ... @@ -1075,8 +1075,8 @@
1075 1075  
1076 1076  ATZ
1077 1077  
1078 -1.
1079 -11.
1064 +1.
1065 +11.
1080 1080  111. Single-channel ABP mode (Use with LG01/LG02)
1081 1081  
1082 1082  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1151,7 +1151,7 @@
1151 1151  [[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]]
1152 1152  
1153 1153  
1154 -1.
1140 +1.
1155 1155  11. How to change the LoRa Frequency Bands/Region?
1156 1156  
1157 1157  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1158,7 +1158,7 @@
1158 1158  
1159 1159  
1160 1160  
1161 -1.
1147 +1.
1162 1162  11. How many RS485-Slave can RS485-BL connects?
1163 1163  
1164 1164  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]].
... ... @@ -1175,7 +1175,7 @@
1175 1175  
1176 1176  
1177 1177  
1178 -1.
1164 +1.
1179 1179  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1180 1180  
1181 1181  It might about the channels mapping. Please see for detail.
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1 -XWiki.Xiaoling
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