Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 122.1 >
edited by Bei Jinggeng
on 2023/06/08 10:19
To version < 117.2 >
edited by Xiaoling
on 2023/04/26 17:51
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
... ... @@ -190,6 +190,7 @@
190 190  * Counting
191 191  
192 192  
193 +
193 193  == 1.4  Applications ==
194 194  
195 195  
... ... @@ -206,6 +206,7 @@
206 206  * Smart Factory
207 207  
208 208  
210 +
209 209  == 1.5 Hardware Variants ==
210 210  
211 211  
... ... @@ -224,6 +224,7 @@
224 224  )))
225 225  
226 226  
229 +
227 227  = 2. Power ON Device =
228 228  
229 229  
... ... @@ -280,7 +280,7 @@
280 280  Each LT is shipped with a sticker with the default device EUI as below:
281 281  )))
282 282  
283 -[[image:image-20230425173427-2.png||height="246" width="530"]]
286 +[[image:image-20230425173427-2.png]]
284 284  
285 285  
286 286  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
... ... @@ -318,41 +318,23 @@
318 318  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
319 319  
320 320  
324 +
321 321  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
322 322  
323 323  
324 324  (((
325 -The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
326 -
327 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
328 -|**Size(bytes)(% style="display:none" %) (%%)**|**2**|**2**|**2**|**2**|**1**|**1**|**1**
329 -|Value|(((
330 -AVI1
331 -voltage
332 -)))|(((
333 -AVI2
334 -voltage
335 -)))|(((
336 -ACI1
337 -Current
338 -)))|(((
339 -ACI2
340 -Current
341 -)))|DIDORO*|(((
342 -Reserve
343 -)))|MOD
329 +The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
344 344  )))
345 345  
332 +[[image:image-20220523174024-3.png]]
333 +
346 346  (((
347 347  
348 348  
349 349  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
350 -
351 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
352 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
353 -|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
354 354  )))
355 355  
340 +[[image:image-20220523174254-4.png]]
356 356  
357 357  * RO is for relay. ROx=1 : close，ROx=0 always open.
358 358  * DI is for digital input. DIx=1: high or float, DIx=0: low.
... ... @@ -394,6 +394,7 @@
394 394  ** DO1 LED is off in both case
395 395  
396 396  
382 +
397 397  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
398 398  
399 399  
... ... @@ -403,28 +403,18 @@
403 403  
404 404  (((
405 405  Total : 11 bytes payload
392 +)))
406 406  
407 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
408 -|**Size(bytes)**|**4**|**4**|**1**|**1**|**1**
409 -|Value|COUNT1|COUNT2 |DIDORO*|(((
410 -Reserve
394 +[[image:image-20220523180452-3.png]]
411 411  
412 -
413 -)))|MOD
414 -)))
415 415  
416 416  (((
417 -
418 -
419 419  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
420 -
421 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
422 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
423 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
424 -
425 -RO is for relay. ROx=1 : close，ROx=0 always open.
426 426  )))
427 427  
401 +[[image:image-20220523180506-4.png]]
402 +
403 +* RO is for relay. ROx=1 : close，ROx=0 always open.
428 428  * FIRST: Indicate this is the first packet after join network.
429 429  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
430 430  
... ... @@ -482,24 +482,15 @@
482 482  
483 483  **LT22222-L**: This mode the DI1 is used as a counting pin.
484 484  
485 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
486 -|**Size(bytes)**|**4**|**2**|**2**|**1**|**1**|**1**
487 -|Value|COUNT1|(((
488 -ACI1 Current
489 -)))|(((
490 -ACI2 Current
491 -)))|DIDORO*|Reserve|MOD
461 +[[image:image-20220523181246-5.png]]
492 492  
493 493  (((
494 494  
495 495  
496 496  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
497 -
498 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
499 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
500 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
501 501  )))
502 502  
469 +[[image:image-20220523181301-6.png]]
503 503  
504 504  * RO is for relay. ROx=1 : close，ROx=0 always open.
505 505  * FIRST: Indicate this is the first packet after join network.
... ... @@ -541,25 +541,16 @@
541 541  
542 542  (((
543 543  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
544 -
545 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
546 -|**Size(bytes)**|**4**|**4**|**1**|**1**|**1**
547 -|Value|COUNT1|AVI1 Counting|DIDORO*|(((
548 -Reserve
549 -
550 -
551 -)))|MOD
552 552  )))
553 553  
513 +[[image:image-20220523181903-8.png]]
554 554  
515 +
555 555  (((
556 556  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
557 -
558 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
559 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
560 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
561 561  )))
562 562  
520 +[[image:image-20220523181727-7.png]]
563 563  
564 564  * RO is for relay. ROx=1 : close，ROx=0 always open.
565 565  * FIRST: Indicate this is the first packet after join network.
... ... @@ -614,29 +614,12 @@
614 614  
615 615  **LT22222-L**: This mode the DI1 is used as a counting pin.
616 616  
617 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
618 -|**Size(bytes)**|**2**|**2**|**2**|**2**|**1**|**1**|**1**
619 -|Value|(((
620 -AVI1
621 -voltage
622 -)))|(((
623 -AVI2
624 -voltage
625 -)))|(((
626 -ACI1
627 -Current
628 -)))|COUNT1|DIDORO*|(((
629 -Reserve
630 -)))|MOD
575 +[[image:image-20220523182334-9.png]]
631 631  
632 632  (((
633 633  
634 634  
635 635  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
636 -
637 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
638 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
639 -|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
640 640  )))
641 641  
642 642  * RO is for relay. ROx=1 : close，ROx=0 always open.
... ... @@ -761,51 +761,12 @@
761 761  
762 762  MOD6 Payload : total 11 bytes payload
763 763  
764 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
765 -|**Size(bytes)**|**1**|**1**|**1**|**6**|**1**|**1**
766 -|Value|(((
767 -TRI_A
768 -FLAG
769 -)))|(((
770 -TRI_A
771 -Status
772 -)))|(((
773 -TRI_DI
774 -FLAG+STA
775 -)))|Reserve|Enable/Disable MOD6|(((
776 -MOD
777 -(6)
778 -)))
705 +[[image:image-20220524085923-1.png]]
779 779  
707 +
780 780  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
781 781  
782 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
783 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
784 -|(((
785 -AV1_
786 -LOW
787 -)))|(((
788 -AV1_
789 -HIGH
790 -)))|(((
791 -AV2_
792 -LOW
793 -)))|(((
794 -AV2_
795 -HIGH
796 -)))|(((
797 -AC1_
798 -LOW
799 -)))|(((
800 -AC1_
801 -HIGH
802 -)))|(((
803 -AC2_
804 -LOW
805 -)))|(((
806 -AC2_
807 -HIGH
808 -)))
710 +[[image:image-20220524090106-2.png]]
809 809  
810 810  * Each bits shows if the corresponding trigger has been configured.
811 811  
... ... @@ -814,35 +814,10 @@
814 814  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
815 815  
816 816  
719 +
817 817  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
818 818  
819 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
820 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
821 -|(((
822 -AV1_
823 -LOW
824 -)))|(((
825 -AV1_
826 -HIGH
827 -)))|(((
828 -AV2_
829 -LOW
830 -)))|(((
831 -AV2_
832 -HIGH
833 -)))|(((
834 -AC1_
835 -LOW
836 -)))|(((
837 -AC1_
838 -HIGH
839 -)))|(((
840 -AC2_
841 -LOW
842 -)))|(((
843 -AC2_
844 -HIGH
845 -)))
722 +[[image:image-20220524090249-3.png]]
846 846  
847 847  * Each bits shows which status has been trigger on this uplink.
848 848  
... ... @@ -853,9 +853,7 @@
853 853  
854 854  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
855 855  
856 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
857 -|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
858 -|N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
733 +[[image:image-20220524090456-4.png]]
859 859  
860 860  * Each bits shows which status has been trigger on this uplink.
861 861  
... ... @@ -902,6 +902,7 @@
902 902  * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
903 903  
904 904  
780 +
905 905  === 3.4.1 Common Commands ===
906 906  
907 907  
... ... @@ -1144,14 +1144,9 @@
1144 1144  
1145 1145  (((
1146 1146  01: Low,  00: High ,  11: No action
1147 -
1148 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1149 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO3**
1150 -|02  01  00  11|Low|High|No Action
1151 -|02  00  11  01|High|No Action|Low
1152 -|02  11  01  00|No Action|Low|High
1153 1153  )))
1154 1154  
1025 +[[image:image-20220524092754-5.png]]
1155 1155  
1156 1156  (((
1157 1157  (% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
... ... @@ -1189,31 +1189,24 @@
1189 1189  
1190 1190  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1191 1191  
1192 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1193 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1194 -|0x01|DO1 set to low
1195 -|0x00|DO1 set to high
1196 -|0x11|DO1 NO Action
1063 +[[image:image-20220524093238-6.png]]
1197 1197  
1065 +
1198 1198  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1199 1199  
1200 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1201 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1202 -|0x01|DO2 set to low
1203 -|0x00|DO2 set to high
1204 -|0x11|DO2 NO Action
1068 +[[image:image-20220524093328-7.png]]
1205 1205  
1070 +
1206 1206  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1207 1207  
1208 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1209 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1210 -|0x01|DO3 set to low
1211 -|0x00|DO3 set to high
1212 -|0x11|DO3 NO Action
1073 +[[image:image-20220524093351-8.png]]
1213 1213  
1214 -(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:(%%) Latching time. Unit: ms
1215 1215  
1076 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1216 1216  
1078 + Latching time. Unit: ms
1079 +
1080 +
1217 1217  (% style="color:red" %)**Note: **
1218 1218  
1219 1219   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
... ... @@ -1263,21 +1263,10 @@
1263 1263  
1264 1264  (((
1265 1265  01: Close ,  00: Open , 11: No action
1266 -
1267 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1268 -|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1269 -|03  00  11|Open|No Action
1270 -|03  01  11|Close|No Action
1271 -|03  11  00|No Action|Open
1272 -|03  11  01|No Action|Close
1273 -|03  00  00|Open|Open
1274 -|03  01  01|Close|Close
1275 -|03  01  00|Close|Open
1276 -|03  00  01|Open|Close
1277 1277  )))
1278 1278  
1279 1279  (((
1280 -
1133 +[[image:image-20230426161322-1.png]]
1281 1281  )))
1282 1282  
1283 1283  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
... ... @@ -1541,7 +1541,7 @@
1541 1541  
1542 1542  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1543 1543  
1544 -(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L) and add DevEUI.(% style="display:none" %)
1397 +(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1545 1545  
1546 1546  Search under The things network
1547 1547  
... ... @@ -1726,6 +1726,7 @@
1726 1726  
1727 1727  **Black:  GND**
1728 1728  
1582 +
1729 1729  **Connection diagram:**
1730 1730  
1731 1731  [[image:1653357640609-758.png]]
... ... @@ -1733,22 +1733,6 @@
1733 1733  [[image:1653357648330-671.png||height="155" width="733"]]
1734 1734  
1735 1735  
1736 -Example connected to a regulated power supply to measure voltage
1737 -
1738 -[[image:image-20230608101532-1.png||height="606" width="447"]]
1739 -
1740 -[[image:image-20230608101608-2.jpeg||height="379" width="284"]]
1741 -
1742 -[[image:image-20230608101722-3.png||height="102" width="1139"]]
1743 -
1744 -
1745 -(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power**(%%) (% style="color:blue" %)**:**
1746 -
1747 -(% style="color:red" %)**Red:  12~~24v**
1748 -
1749 -**Black:  GND**
1750 -
1751 -
1752 1752  === 3.6.5 Relay Output ===
1753 1753  
1754 1754  
... ... @@ -1767,42 +1767,9 @@
1767 1767  == 3.7 LEDs Indicators ==
1768 1768  
1769 1769  
1770 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1771 -|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1772 -|**PWR**|Always on if there is power
1773 -|**SYS**|(((
1774 -After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1775 -)))
1776 -|**TX**|(((
1777 -(((
1778 -Device boot: TX blinks 5 times.
1779 -)))
1608 +[[image:image-20220524100748-11.png]]
1780 1780  
1781 -(((
1782 -Successful join network: TX ON for 5 seconds.
1783 -)))
1784 1784  
1785 -(((
1786 -Transmit a LoRa packet: TX blinks once
1787 -)))
1788 -)))
1789 -|**RX**|RX blinks once when receive a packet.
1790 -|**DO1**|
1791 -|**DO2**|
1792 -|**DO3**|
1793 -|**DI2**|(((
1794 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1795 -)))
1796 -|**DI2**|(((
1797 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1798 -)))
1799 -|**DI2**|(((
1800 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1801 -)))
1802 -|**RO1**|
1803 -|**RO2**|
1804 -
1805 -
1806 1806  = 4. Use AT Command =
1807 1807  
1808 1808  == 4.1 Access AT Command ==
... ... @@ -2288,20 +2288,14 @@
2288 2288  [[image:1653360498588-932.png||height="485" width="726"]]
2289 2289  
2290 2290  
2291 -== 6.4 How to change the uplink interval？ ==
2096 +== 6.4 Can I see counting event in Serial? ==
2292 2292  
2293 2293  
2294 -Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
2295 -
2296 -
2297 -== 6.5 Can I see counting event in Serial? ==
2298 -
2299 -
2300 2300  (((
2301 2301  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn't support AT+DEBUG. User can update to latest firmware first.
2302 2302  
2303 2303  
2304 -== 6.6 Can i use point to point communication for LT-22222-L? ==
2103 +== 6.5 Can i use point to point communication for LT-22222-L? ==
2305 2305  
2306 2306  
2307 2307  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
... ... @@ -2310,7 +2310,7 @@
2310 2310  )))
2311 2311  
2312 2312  (((
2313 -== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2112 +== 6.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2314 2314  
2315 2315  
2316 2316  If the device is not shut down, but directly powered off.
... ... @@ -2322,7 +2322,7 @@
2322 2322  After restart, the status before power failure will be read from flash.
2323 2323  
2324 2324  
2325 -== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2124 +== 6.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2326 2326  
2327 2327  
2328 2328  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
... ... @@ -2331,7 +2331,7 @@
2331 2331  [[image:image-20221006170630-1.png||height="610" width="945"]]
2332 2332  
2333 2333  
2334 -== 6.9 Can LT22222-L save RO state? ==
2133 +== 6.8 Can LT22222-L save RO state? ==
2335 2335  
2336 2336  
2337 2337  Firmware version needs to be no less than 1.6.0.
... ... @@ -2395,6 +2395,7 @@
2395 2395  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2396 2396  
2397 2397  
2197 +
2398 2398  = 9. Packing Info =
2399 2399  
2400 2400  
... ... @@ -2413,6 +2413,7 @@
2413 2413  * Weight / pcs : 170g
2414 2414  
2415 2415  
2216 +
2416 2416  = 10. Support =
2417 2417  
2418 2418  
... ... @@ -2420,7 +2420,7 @@
2420 2420  Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
2421 2421  )))
2422 2422  * (((
2423 -Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]]
2224 +Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2424 2424  
2425 2425  
2426 2426  
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