Last modified by Bei Jinggeng on 2025/01/10 15:06
<
From version < 121.3 >
edited by Mengting Qiu
on 2024/09/25 16:33
To version < 105.1 >
edited by Saxer Lin
on 2023/10/14 17:25
>
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.ting
1 +XWiki.Saxer
Content
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135 135  v1.0: Release
136 136  )))
137 137  
138 -
139 -== 1.7 Pin Definitions ==
140 -
141 -
142 -The following diagram shows the V1.2 hardware version.
143 -
144 -[[image:image-20240925161141-1.jpeg||height="412" width="405"]]
145 -
146 -[[image:image-20240925161157-2.jpeg||height="367" width="545"]]
147 -
148 148  
149 149  )))
150 150  )))
... ... @@ -255,6 +255,7 @@
255 255  (% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png||data-widget="image" height="514" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
256 256  
257 257  
248 +
258 258  (((
259 259  (% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
260 260  
... ... @@ -264,44 +264,38 @@
264 264  (% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
265 265  
266 266  
267 -== 3.3 Configure Device to Read RS485 Sensors ==
258 +== 3.3 Configure Commands to read data ==
268 268  
269 269  
270 -There are plenty of RS485 and TTL level devices in the market and each device has different commands to read the valid data. To support these devices in most flexible, RS485-LN supports flexible command set. User can use [[Dragino RS485 Tool>>url:https://www.dropbox.com/sh/us9qecn39fwt8n1/AABREdqUCzEmJMRrfuWuXasoa?dl=0]],  [[AT Commands or LoRaWAN Downlink>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/#H3.5ConfigureRS485-LBviaATorDownlink]] Command to configure how RS485-LN should read the sensor and how to handle the return from RS485 or TTL sensors.
261 +(((
262 +(((
263 +(((
264 +There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
271 271  
266 +
267 +)))
268 +)))
272 272  
273 273  (((
274 274  (((
275 -(((
276 276  (% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
277 277  )))
278 278  
279 -
280 -=== 3.3.1 Method 1 ~-~- via RS485 Configure Tool ===
281 -
282 -
283 -Use the RS485 Configure tool is the recommand method. Please see the instruction of how to use the tool:
284 -
285 -* **[[RS485 Configure Tool Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/]]**
286 -
287 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/WebHome/image-20231127144411-1.png?width=494&height=368&rev=1.1||alt="image-20231127144411-1.png" height="368" width="494"]]
288 -
289 -
290 -=== 3.3.2  Method 2 ~-~- via AT Commands ===
275 +
291 291  )))
292 292  )))
293 293  
294 -==== 3.3.2.1 Configure UART settings for RS485 communication ====
279 +=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
295 295  
296 296  
297 -To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. The related commands for UART settings are:
282 +To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
298 298  
299 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
300 -|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
284 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
285 +|=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)(((
301 301  **AT Commands**
302 -)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
287 +)))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)(((
303 303  **Description**
304 -)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
289 +)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
305 305  **Example**
306 306  )))
307 307  |(% style="width:126px" %)(((
... ... @@ -357,7 +357,7 @@
357 357  )))
358 358  )))
359 359  
360 -=== 3.3.3 Configure sensors ===
345 +=== 3.3.2 Configure sensors ===
361 361  
362 362  
363 363  (((
... ... @@ -364,8 +364,8 @@
364 364  Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
365 365  )))
366 366  
367 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
368 -|=(% style="width: 122px; background-color:#4F81BD;color:white" %)**AT Commands**|=(% style="width: 198px; background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Example**
352 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
353 +|=(% style="width: 122px; background-color:#D9E2F3;color:#0070C0" %)**AT Commands**|=(% style="width: 198px; background-color:#D9E2F3;color:#0070C0" %)**Description**|=(% style="width: 190px;background-color:#D9E2F3;color:#0070C0" %)**Example**
369 369  |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
370 370  (((
371 371  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
... ... @@ -380,7 +380,7 @@
380 380  )))
381 381  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
382 382  
383 -=== 3.3.4 Configure read commands for each sampling ===
368 +=== 3.3.3 Configure read commands for each sampling ===
384 384  
385 385  
386 386  (((
... ... @@ -471,7 +471,7 @@
471 471  
472 472  )))
473 473  
474 -=== 3.3.5 Compose the uplink payload ===
459 +=== 3.3.4 Compose the uplink payload ===
475 475  
476 476  
477 477  (((
... ... @@ -556,7 +556,7 @@
556 556  (% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
557 557  
558 558  
559 -=== 3.3.6 Uplink on demand ===
544 +=== 3.3.5 Uplink on demand ===
560 560  
561 561  
562 562  Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
... ... @@ -568,34 +568,27 @@
568 568  (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
569 569  
570 570  
571 -=== 3.3.7 Uplink on Interrupt ===
556 +=== 3.3.6 Uplink on Interrupt ===
572 572  
573 573  
574 574  RS485-LN support external Interrupt uplink since hardware v1.2 release.
575 575  
576 -(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
577 577  
578 -(% title="Click and drag to resize" %)​(%%)When there is a high voltage (3.3v and above, the maximum is 24V, but not more than 12v is recommended) on (% style="color:blue" %)**INT**(%%) pin. At this point, an interrupt is triggered and the Device will send an uplink packet.
562 +(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
579 579  
580 -**Example:**
564 +Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
581 581  
582 -* Use a dry contact to connect the (% style="color:blue" %)**INT**(%%) pin and (% style="color:blue" %)**VIN+**(%%) pin of the RS485-LN.
583 583  
584 -When the dry contact is closed, INT and VIN+ conduct, and INT goes high, which triggers an interrupt, and the node sends an uplink message.
585 -
586 -
587 -
588 -
589 589  == 3.4 Uplink Payload ==
590 590  
591 591  
592 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
593 -|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
594 -**Size(bytes)**
595 -)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
570 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
571 +|=(% scope="row" style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
572 +Size(bytes)
573 +)))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
596 596  **Length depends on the return from the commands**
597 597  )))
598 -|(% style="width:90px" %)(((
576 +|=(% style="width: 90px;" %)(((
599 599  Value
600 600  )))|(% style="width:114px" %)(((
601 601  PAYLOAD_VER
... ... @@ -607,9 +607,13 @@
607 607  provided in the LoRaWAN server.
608 608  )))
609 609  
610 -(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](%%)Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
588 +(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
611 611  
590 +(% title="Click and drag to resize" %)​
612 612  
592 +Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
593 +
594 +
613 613  == 3.5 Configure RS485-LN via AT or Downlink ==
614 614  
615 615  
... ... @@ -754,21 +754,31 @@
754 754  )))
755 755  
756 756  (((
757 -(% style="color:blue" %)**Example 2:**  (%%)
739 +(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
758 758  )))
759 759  
760 760  (((
761 -Check TTL Sensor return:
743 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
762 762  )))
763 763  
764 764  (((
747 +
748 +)))
749 +
765 765  (((
766 -[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/1654132684752-193.png?rev=1.1||alt="1654132684752-193.png"]](% title="Click and drag to resize" %)​
751 +(((
752 +RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
767 767  )))
754 +
755 +
768 768  )))
769 769  
758 +(((
759 + (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
760 +)))
770 770  
771 771  
763 +
772 772  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
773 773  
774 774  
... ... @@ -936,13 +936,8 @@
936 936  
937 937  (% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
938 938  
939 -* (((
940 -(% style="color:#037691" %)**Downlink Command:**
941 -)))
942 942  
943 -**~ (% style="color:#4472c4" %)A9 aa(%%)** ~-~-> Same as AT+MBFUN=aa
944 944  
945 -
946 946  ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
947 947  
948 948  
... ... @@ -1394,10 +1394,12 @@
1394 1394  To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1395 1395  )))
1396 1396  
1397 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1398 -|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1384 +
1385 +
1386 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
1387 +|=(% style="width: 156px; background-color:#D9E2F3;color:#0070C0" %)(((
1399 1399  **Command example**
1400 -)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1389 +)))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)(((
1401 1401  **Function**
1402 1402  )))
1403 1403  |(% style="width:156px" %)(((
... ... @@ -1476,7 +1476,7 @@
1476 1476  
1477 1477  
1478 1478  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1479 -|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1468 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1480 1480  |(% style="width:50px" %)ACT|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1481 1481  |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1482 1482  |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
... ... @@ -1485,7 +1485,7 @@
1485 1485  
1486 1486  
1487 1487  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1488 -|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1477 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1489 1489  |PWR|Always on if there is power
1490 1490  |SYS|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1491 1491  
... ... @@ -1647,12 +1647,6 @@
1647 1647  (% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1648 1648  
1649 1649  
1650 -
1651 -(% style="color:red" %)**Users can select the new burning software STM32Cubeprogramer for firmware upgrade and follow the same connection steps to enter burning mode (until SYS LED is RED ON):**
1652 -
1653 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer]]
1654 -
1655 -
1656 1656  (% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1657 1657  
1658 1658  (% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
... ... @@ -1702,7 +1702,7 @@
1702 1702  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1703 1703  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1704 1704  
1705 -[[image:image-20240816112950-1.png||height="382" width="731"]]
1688 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1706 1706  
1707 1707  
1708 1708  Example Connection:
... ... @@ -1805,17 +1805,6 @@
1805 1805  The decoder for RS485-LN needs to be written by yourself. Because the sensor to which the user is connected is custom, the read device data bytes also need custom parsing, so there is no universal decoder. We can only provide [[templates>>https://github.com/dragino/dragino-end-node-decoder/tree/main/RS485-LN]] for decoders (no intermediate data parsing part involved)
1806 1806  
1807 1807  
1808 -== 6.9 How to configure RS485 commands more conveniently？ ==
1809 -
1810 -
1811 -Dragino has developed an application for the RS485 series of products.
1812 -
1813 -It can help you configure RS485 sensors more conveniently
1814 -Please refer to the link below for specific usage：
1815 -
1816 -[[RS485 Configure Tool - DRAGINO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/#HTableofContentsFF1A]]
1817 -
1818 -
1819 1819  = 7. Trouble Shooting =
1820 1820  
1821 1821  == 7.1 Downlink doesn't work, how to solve it? ==
... ... @@ -1824,36 +1824,12 @@
1824 1824  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1825 1825  
1826 1826  
1827 -== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1799 +== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1828 1828  
1829 1829  
1830 1830  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1831 1831  
1832 1832  
1833 -== 7.3 Why can't customers see the device's data in the server when the data is too long? ==
1834 -
1835 -This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
1836 -
1837 -Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1838 -
1839 -[[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
1840 -
1841 -Example:
1842 -
1843 -[[image:image-20240620145456-1.png]]
1844 -
1845 -Please refer to the following command to fix DR
1846 -
1847 -AT+ADR=0
1848 -
1849 -AT+DR=3
1850 -
1851 -Downlink command:
1852 -
1853 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
1854 -
1855 -
1856 -
1857 1857  = 8. Order Info =
1858 1858  
1859 1859  
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