Last modified by Bei Jinggeng on 2025/01/10 15:06
<
From version < 131.2 >
edited by Xiaoling
on 2024/09/28 10:13
To version < 108.1 >
edited by Bei Jinggeng
on 2023/11/27 15:23
>
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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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1 -(% style="text-align:center" %)
2 -[[image:image-20240928101253-2.jpeg||height="603" width="603"]]
1 +(% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %)
2 +(((
3 +(% data-widget="image" style="text-align:center" %)
4 +[[image:1653266934636-343.png||height="385" width="385"]](% title="Click and drag to resize" %)​
3 3  
6 +(% 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==||height="15" role="presentation" title="Click and drag to move" width="15"]]
7 +)))
4 4  
5 5  
6 6  
... ... @@ -8,7 +8,6 @@
8 8  
9 9  
10 10  
11 -
12 12  **Table of Contents:**
13 13  
14 14  {{toc/}}
... ... @@ -132,16 +132,6 @@
132 132  v1.0: Release
133 133  )))
134 134  
135 -
136 -== 1.7 Pin Definitions ==
137 -
138 -
139 -The following diagram shows the V1.2 hardware version.
140 -
141 -[[image:image-20240925161141-1.jpeg||height="412" width="405"]]
142 -
143 -[[image:image-20240925161157-2.jpeg||height="367" width="545"]]
144 -
145 145  
146 146  )))
147 147  )))
... ... @@ -252,6 +252,7 @@
252 252  (% 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" %)​
253 253  
254 254  
248 +
255 255  (((
256 256  (% 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.
257 257  
... ... @@ -273,10 +273,10 @@
273 273  (% 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**
274 274  )))
275 275  
270 +=== ===
276 276  
277 277  === 3.3.1 Method 1 ~-~- via RS485 Configure Tool ===
278 278  
279 -
280 280  Use the RS485 Configure tool is the recommand method. Please see the instruction of how to use the tool:
281 281  
282 282  * **[[RS485 Configure Tool Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/]]**
... ... @@ -283,22 +283,24 @@
283 283  
284 284  [[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"]]
285 285  
280 +=== ===
286 286  
287 287  === 3.3.2  Method 2 ~-~- via AT Commands ===
288 288  )))
289 289  )))
290 290  
291 -==== 3.3.2.1 Configure UART settings for RS485 communication ====
286 +==== 3.3.2.1 Configure UART settings for RS485 or TTL communication ====
292 292  
288 +RS485-LN can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
293 293  
294 -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:
290 +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:
295 295  
296 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
297 -|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
292 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
293 +|=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)(((
298 298  **AT Commands**
299 -)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
295 +)))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)(((
300 300  **Description**
301 -)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
297 +)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
302 302  **Example**
303 303  )))
304 304  |(% style="width:126px" %)(((
... ... @@ -361,8 +361,8 @@
361 361  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.
362 362  )))
363 363  
364 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
365 -|=(% 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**
360 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
361 +|=(% 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**
366 366  |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
367 367  (((
368 368  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
... ... @@ -568,84 +568,24 @@
568 568  === 3.3.7 Uplink on Interrupt ===
569 569  
570 570  
571 -
572 572  RS485-LN support external Interrupt uplink since hardware v1.2 release.
573 573  
574 -(% 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"]]
575 575  
570 +(% 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" %)​
576 576  
577 -==== 3.3.7.1 Set Interrupt Mode ====
572 +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.
578 578  
579 579  
580 -Before using the interrupt function of the **INT** pin, users can set the interrupt triggering mode as required.
581 -
582 -(% style="color:blue" %)**AT command:**
583 -
584 -* (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode
585 -
586 -* (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt
587 -
588 -* (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge
589 -
590 -* (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge **(default)**
591 -
592 -* (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
593 -
594 -(% style="color:blue" %)**Downlink Commands: **(% style="color:#037691" %)**0x06**
595 -
596 -Format: Command Code (0x06) followed by 3 bytes.
597 -
598 -Example1:  Downlink Payload: **06 00 00 01    **~/~/ AT+INTMOD=1
599 -
600 -Example2:  Downlink Payload: **06 00 00 03    **~/~/AT+INTMOD=3
601 -
602 -
603 -==== 3.3.7.2 Practical application ====
604 -
605 -
606 -The following uses the default interrupt triggering mode (% style="color:blue" %)**(AT+INTMOD=2)**(%%) as an example to show the interrupt function of (% style="color:blue" %)**INT**(%%):
607 -
608 -When a high voltage is given to the INT pin and then the level of the (% style="color:blue" %)**INT**(%%) pin changes from high to low, the interrupt is triggered by a falling edge and the RS485-LN sends an uplink data.
609 -
610 -(% style="color:red" %)**Note: The level that triggers the interrupt ranges from 3.3V to 24V. Generally, it is recommended to use less than 12V.**
611 -
612 -**Example:**
613 -
614 -* Use a dry contact to connect the (% style="color:blue" %)**INT**(%%) pin and (% style="color:blue" %)**VIN+**(%%) pin of the RS485-LN.
615 -
616 -When the dry contact is closed, INT and VIN+ conduct and INT is high.
617 -
618 -Disconnecting the dry contact, the level of the INT pin changes from high to low, triggering an interrupt (triggered along the falling edge), and the RS485-LN sends an uplink data.
619 -
620 -[[image:image-20240925174124-5.jpeg||height="439" width="703"]]
621 -
622 -* Use a regulated power supply or a wet contact to connect the 485-LN to trigger the interruption.(This section uses a regulated power supply as an example.)
623 -
624 -The positive pole of the stabilized power supply is connected to the (% style="color:blue" %)**INT**(%%) pin of RS485-LN, and the negative pole of the stabilized power supply is connected to the (% style="color:blue" %)**VIN-**(%%) pin of RS485-LN.
625 -
626 -When the regulated power supply is operating, a high voltage is given to the INT pin and the INT level is high. When the regulated power supply is turned off, the level of the INT pin changes from
627 -
628 -high to low, at which time an interrupt is triggered (triggered along the falling edge), and the device will send an uplink data.
629 -
630 -[[image:image-20240925173243-4.jpeg||height="404" width="900"]]
631 -
632 -* Example of interrupt data in TTN.
633 -
634 -The first byte of the payload of the interrupted packet is (% style="color:blue" %)**0x81**(%%).
635 -
636 -[[image:image-20240925181010-1.png||height="348" width="953"]]
637 -
638 -
639 639  == 3.4 Uplink Payload ==
640 640  
641 641  
642 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
643 -|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
644 -**Size(bytes)**
645 -)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
578 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
579 +|=(% scope="row" style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
580 +Size(bytes)
581 +)))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
646 646  **Length depends on the return from the commands**
647 647  )))
648 -|(% style="width:90px" %)(((
584 +|=(% style="width: 90px;" %)(((
649 649  Value
650 650  )))|(% style="width:114px" %)(((
651 651  PAYLOAD_VER
... ... @@ -657,9 +657,13 @@
657 657  provided in the LoRaWAN server.
658 658  )))
659 659  
660 -(% 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.
596 +(% 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"]]
661 661  
598 +(% title="Click and drag to resize" %)​
662 662  
600 +Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
601 +
602 +
663 663  == 3.5 Configure RS485-LN via AT or Downlink ==
664 664  
665 665  
... ... @@ -804,21 +804,31 @@
804 804  )))
805 805  
806 806  (((
807 -(% style="color:blue" %)**Example 2:**  (%%)
747 +(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
808 808  )))
809 809  
810 810  (((
811 -Check TTL Sensor return:
751 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
812 812  )))
813 813  
814 814  (((
755 +
756 +)))
757 +
815 815  (((
816 -[[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" %)​
759 +(((
760 +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**
817 817  )))
762 +
763 +
818 818  )))
819 819  
766 +(((
767 + (% 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" %)​
768 +)))
820 820  
821 821  
771 +
822 822  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
823 823  
824 824  
... ... @@ -986,13 +986,8 @@
986 986  
987 987  (% 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" %)​
988 988  
989 -* (((
990 -(% style="color:#037691" %)**Downlink Command:**
991 -)))
992 992  
993 -**~ (% style="color:#4472c4" %)A9 aa(%%)** ~-~-> Same as AT+MBFUN=aa
994 994  
995 -
996 996  ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
997 997  
998 998  
... ... @@ -1444,10 +1444,12 @@
1444 1444  To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1445 1445  )))
1446 1446  
1447 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1448 -|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1392 +
1393 +
1394 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
1395 +|=(% style="width: 156px; background-color:#D9E2F3;color:#0070C0" %)(((
1449 1449  **Command example**
1450 -)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1397 +)))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)(((
1451 1451  **Function**
1452 1452  )))
1453 1453  |(% style="width:156px" %)(((
... ... @@ -1526,7 +1526,7 @@
1526 1526  
1527 1527  
1528 1528  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1529 -|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1476 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1530 1530  |(% 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**
1531 1531  |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1532 1532  |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
... ... @@ -1535,7 +1535,7 @@
1535 1535  
1536 1536  
1537 1537  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1538 -|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1485 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1539 1539  |PWR|Always on if there is power
1540 1540  |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.
1541 1541  
... ... @@ -1703,6 +1703,7 @@
1703 1703  [[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]]
1704 1704  
1705 1705  
1653 +
1706 1706  (% 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:**
1707 1707  
1708 1708  (% 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" %)​
... ... @@ -1752,7 +1752,7 @@
1752 1752  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1753 1753  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1754 1754  
1755 -[[image:image-20240816112950-1.png||height="382" width="731"]]
1703 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1756 1756  
1757 1757  
1758 1758  Example Connection:
... ... @@ -1866,6 +1866,7 @@
1866 1866  [[RS485 Configure Tool - DRAGINO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/#HTableofContentsFF1A]]
1867 1867  
1868 1868  
1817 +
1869 1869  = 7. Trouble Shooting =
1870 1870  
1871 1871  == 7.1 Downlink doesn't work, how to solve it? ==
... ... @@ -1874,36 +1874,12 @@
1874 1874  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1875 1875  
1876 1876  
1877 -== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1826 +== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1878 1878  
1879 1879  
1880 1880  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1881 1881  
1882 1882  
1883 -== 7.3 Why can't customers see the device's data in the server when the data is too long? ==
1884 -
1885 -This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
1886 -
1887 -Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1888 -
1889 -[[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]]
1890 -
1891 -Example:
1892 -
1893 -[[image:image-20240620145456-1.png]]
1894 -
1895 -Please refer to the following command to fix DR
1896 -
1897 -AT+ADR=0
1898 -
1899 -AT+DR=3
1900 -
1901 -Downlink command:
1902 -
1903 -[[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]]
1904 -
1905 -
1906 -
1907 1907  = 8. Order Info =
1908 1908  
1909 1909  
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