Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 101.3 >
edited by Xiaoling
on 2022/10/25 15:22
To version < 97.2 >
edited by Xiaoling
on 2022/09/12 09:21
>
Change comment: There is no comment for this version

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... ... @@ -21,10 +21,8 @@
21 21  (((
22 22  
23 23  
24 -(((
25 25  The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
26 26  )))
27 -)))
28 28  
29 29  (((
30 30  The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
... ... @@ -186,6 +186,9 @@
186 186  * Firmware upgradable via program port
187 187  * Counting
188 188  
187 +
188 +
189 +
189 189  == 1.4  Applications ==
190 190  
191 191  
... ... @@ -196,6 +196,9 @@
196 196  * Smart Cities
197 197  * Smart Factory
198 198  
200 +
201 +
202 +
199 199  == 1.5 Hardware Variants ==
200 200  
201 201  
... ... @@ -210,12 +210,13 @@
210 210  * 1 x Counting Port
211 211  )))
212 212  
217 +
218 +
219 +
213 213  = 2. Power ON Device =
214 214  
215 215  
216 -(((
217 217  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
218 -)))
219 219  
220 220  (((
221 221  PWR will on when device is properly powered.
... ... @@ -274,12 +274,12 @@
274 274  
275 275  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
276 276  
277 -**Add APP EUI in the application.**
282 +Add APP EUI in the application.
278 278  
279 279  [[image:1653297955910-247.png||height="321" width="716"]]
280 280  
281 281  
282 -**Add APP KEY and DEV EUI**
287 +Add APP KEY and DEV EUI
283 283  
284 284  [[image:1653298023685-319.png]]
285 285  
... ... @@ -287,8 +287,6 @@
287 287  
288 288  (((
289 289  (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
290 -
291 -
292 292  )))
293 293  
294 294  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -307,12 +307,13 @@
307 307  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
308 308  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
309 309  
313 +
314 +
315 +
310 310  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
311 311  
312 312  
313 -(((
314 314  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
315 -)))
316 316  
317 317  [[image:image-20220523174024-3.png]]
318 318  
... ... @@ -328,6 +328,8 @@
328 328  * DI is for digital input. DIx=1: high or float, DIx=0: low.
329 329  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
330 330  
335 +
336 +
331 331  (% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
332 332  
333 333  For example if payload is: [[image:image-20220523175847-2.png]]
... ... @@ -348,6 +348,8 @@
348 348  * [1] RO1 relay channel is close and the RO1 LED is ON.
349 349  * [0] RO2 relay channel is open and RO2 LED is OFF;
350 350  
357 +
358 +
351 351  **LT22222-L:**
352 352  
353 353  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -363,12 +363,14 @@
363 363  ** DO1 is high in case there is load between DO1 and V+.
364 364  ** DO1 LED is off in both case
365 365  
374 +
375 +
376 +
377 +
366 366  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
367 367  
368 368  
369 -(((
370 370  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
371 -)))
372 372  
373 373  (((
374 374  Total : 11 bytes payload
... ... @@ -400,15 +400,11 @@
400 400  (% class="box infomessage" %)
401 401  (((
402 402  (((
403 -(((
404 404  **AT+MOD=2**
405 -)))
406 406  
407 -(((
408 408  **ATZ**
409 409  )))
410 410  )))
411 -)))
412 412  
413 413  (((
414 414  
... ... @@ -468,15 +468,11 @@
468 468  (% class="box infomessage" %)
469 469  (((
470 470  (((
471 -(((
472 472  **AT+MOD=3**
473 -)))
474 474  
475 -(((
476 476  **ATZ**
477 477  )))
478 478  )))
479 -)))
480 480  
481 481  (((
482 482  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -487,13 +487,9 @@
487 487  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
488 488  
489 489  
490 -(((
491 491  **LT22222-L**: This mode the DI1 is used as a counting pin.
492 -)))
493 493  
494 -(((
495 495  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.
496 -)))
497 497  
498 498  [[image:image-20220523181903-8.png]]
499 499  
... ... @@ -521,17 +521,14 @@
521 521  (% class="box infomessage" %)
522 522  (((
523 523  (((
524 -(((
525 525  **AT+MOD=4**
526 -)))
527 527  
528 -(((
529 529  **ATZ**
530 530  )))
531 531  )))
532 -)))
533 533  
534 534  
529 +
535 535  (((
536 536  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
537 537  )))
... ... @@ -585,15 +585,11 @@
585 585  (% class="box infomessage" %)
586 586  (((
587 587  (((
588 -(((
589 589  **AT+MOD=5**
590 -)))
591 591  
592 -(((
593 593  **ATZ**
594 594  )))
595 595  )))
596 -)))
597 597  
598 598  (((
599 599  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -611,11 +611,16 @@
611 611  * **AT+MOD=1 ** **~-~->**  The normal working mode
612 612  * **AT+ADDMOD6=1**   **~-~->**  Enable trigger
613 613  
605 +
606 +
614 614  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
615 615  
616 616  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
617 617  1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
618 618  
612 +
613 +
614 +
619 619  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
620 620  
621 621  
... ... @@ -699,6 +699,8 @@
699 699  
700 700  * Each bits shows if the corresponding trigger has been configured.
701 701  
698 +
699 +
702 702  **Example:**
703 703  
704 704  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
... ... @@ -711,6 +711,8 @@
711 711  
712 712  * Each bits shows which status has been trigger on this uplink.
713 713  
712 +
713 +
714 714  **Example:**
715 715  
716 716  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
... ... @@ -723,6 +723,8 @@
723 723  
724 724  * Each bits shows which status has been trigger on this uplink.
725 725  
726 +
727 +
726 726  **Example:**
727 727  
728 728  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -747,7 +747,7 @@
747 747  (((
748 748  
749 749  
750 -**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
752 +**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0>>https://www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0]]
751 751  )))
752 752  
753 753  
... ... @@ -755,26 +755,23 @@
755 755  == 3.4 ​Configure LT via AT or Downlink ==
756 756  
757 757  
758 -(((
759 759  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
760 -)))
761 761  
762 762  (((
763 -(((
764 764  There are two kinds of Commands:
765 765  )))
766 -)))
767 767  
768 768  * (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
769 769  
770 770  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
771 771  
770 +
771 +
772 +
772 772  === 3.4.1 Common Commands ===
773 773  
774 774  
775 -(((
776 776  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
777 -)))
778 778  
779 779  
780 780  
... ... @@ -920,6 +920,9 @@
920 920  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
921 921  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
922 922  
922 +
923 +
924 +
923 923  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
924 924  
925 925  
... ... @@ -1159,7 +1159,7 @@
1159 1159  
1160 1160  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1161 1161  
1162 -[[image:image-20221008095908-1.png||height="364" width="564"]]
1164 +[[image:image-20220714135731-1.png||height="406" width="627"]]
1163 1163  
1164 1164  
1165 1165  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
... ... @@ -1345,13 +1345,10 @@
1345 1345  
1346 1346  Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1347 1347  
1348 -
1349 1349  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1350 1350  
1351 1351  For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1352 1352  
1353 -
1354 -
1355 1355  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1356 1356  
1357 1357  For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
... ... @@ -1364,7 +1364,7 @@
1364 1364  * (((
1365 1365  (% style="color:#037691" %)**Downlink Payload**(%%)**:**
1366 1366  
1367 -**26 01  ** ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1366 +**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1368 1368  
1369 1369  
1370 1370  )))
... ... @@ -1486,11 +1486,11 @@
1486 1486  )))
1487 1487  
1488 1488  (((
1489 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1488 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1490 1490  )))
1491 1491  
1492 1492  (((
1493 -If** DI1+ **= **12v**, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1492 +If** DI1+ **= **12v**, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1494 1494  )))
1495 1495  
1496 1496  (((
... ... @@ -1585,13 +1585,13 @@
1585 1585  We take the wind speed sensor as an example for reference only.
1586 1586  
1587 1587  
1588 -(% style="color:blue" %)**Specifications of the wind speed sensor:**
1587 +**Specifications of the wind speed sensor:**
1589 1589  
1590 -**Red:  12~~24v**
1589 +Red:  12~~24v
1591 1591  
1592 -**Yellow:  4~~20mA**
1591 +Yellow:  4~~20mA
1593 1593  
1594 -**Black:  GND**
1593 +Black:  GND
1595 1595  
1596 1596  
1597 1597  **Connection diagram:**
... ... @@ -1629,14 +1629,8 @@
1629 1629  == 4.1 Access AT Command ==
1630 1630  
1631 1631  
1632 -(((
1633 1633  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1634 -)))
1635 1635  
1636 -(((
1637 -
1638 -)))
1639 -
1640 1640  [[image:1653358238933-385.png]]
1641 1641  
1642 1642  
... ... @@ -1664,7 +1664,7 @@
1664 1664  )))
1665 1665  
1666 1666  (((
1667 -AT+<CMD>=?       :  Get the value
1660 +AT+<CMD>=?       : Get the value
1668 1668  )))
1669 1669  
1670 1670  (((
... ... @@ -1692,11 +1692,11 @@
1692 1692  )))
1693 1693  
1694 1694  (((
1695 -AT+APPSKEY:  Get or Set the Application Session Key
1688 +AT+APPSKEY: Get or Set the Application Session Key
1696 1696  )))
1697 1697  
1698 1698  (((
1699 -AT+APPEUI:  Get or Set the Application EUI
1692 +AT+APPEUI: Get or Set the Application EUI
1700 1700  )))
1701 1701  
1702 1702  (((
... ... @@ -1708,7 +1708,7 @@
1708 1708  )))
1709 1709  
1710 1710  (((
1711 -AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1704 +AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1712 1712  )))
1713 1713  
1714 1714  (((
... ... @@ -1744,7 +1744,7 @@
1744 1744  )))
1745 1745  
1746 1746  (((
1747 -AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1740 +AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1748 1748  )))
1749 1749  
1750 1750  (((
... ... @@ -1788,7 +1788,7 @@
1788 1788  )))
1789 1789  
1790 1790  (((
1791 -AT+VER:  Get current image version and Frequency Band
1784 +AT+VER: Get current image version and Frequency Band
1792 1792  )))
1793 1793  
1794 1794  (((
... ... @@ -1796,7 +1796,7 @@
1796 1796  )))
1797 1797  
1798 1798  (((
1799 -AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1792 +AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1800 1800  )))
1801 1801  
1802 1802  (((
... ... @@ -1845,42 +1845,40 @@
1845 1845  (((
1846 1846  
1847 1847  
1848 -(((
1849 -(% style="color:blue" %)**If device has not joined network yet:**
1841 +**If device has not joined network yet:**
1850 1850  )))
1851 -)))
1852 1852  
1853 1853  (((
1854 -(% style="background-color:#dcdcdc" %)**123456**
1845 +(% style="background-color:#dcdcdc" %)123456
1855 1855  )))
1856 1856  
1857 1857  (((
1858 -(% style="background-color:#dcdcdc" %)**AT+FDR**
1849 +(% style="background-color:#dcdcdc" %)AT+FDR
1859 1859  )))
1860 1860  
1861 1861  (((
1862 -(% style="background-color:#dcdcdc" %)**123456**
1853 +(% style="background-color:#dcdcdc" %)123456
1863 1863  )))
1864 1864  
1865 1865  (((
1866 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1857 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1867 1867  )))
1868 1868  
1869 1869  (((
1870 -(% style="background-color:#dcdcdc" %)**ATZ**
1861 +(% style="background-color:#dcdcdc" %)ATZ
1871 1871  )))
1872 1872  
1873 1873  
1874 1874  (((
1875 -(% style="color:blue" %)**If device already joined network:**
1866 +**If device already joined network:**
1876 1876  )))
1877 1877  
1878 1878  (((
1879 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1870 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1880 1880  )))
1881 1881  
1882 1882  (((
1883 -(% style="background-color:#dcdcdc" %)**ATZ**
1874 +(% style="background-color:#dcdcdc" %)ATZ
1884 1884  )))
1885 1885  
1886 1886  
... ... @@ -1890,57 +1890,55 @@
1890 1890  (((
1891 1891  
1892 1892  
1893 -(((
1894 -(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1884 +(% style="background-color:#dcdcdc" %)123456(%%)  Enter Password to have AT access.
1895 1895  )))
1896 -)))
1897 1897  
1898 1898  (((
1899 -(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset Parameters to Factory Default, Keys Reserve
1888 +(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1900 1900  )))
1901 1901  
1902 1902  (((
1903 -(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1892 +(% style="background-color:#dcdcdc" %) 123456(%%)  Enter Password to have AT access.
1904 1904  )))
1905 1905  
1906 1906  (((
1907 -(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to work in CLASS C
1896 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1908 1908  )))
1909 1909  
1910 1910  (((
1911 -(% style="background-color:#dcdcdc" %)** AT+NJM=0**(%%)  ~/~/ Set to ABP mode
1900 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)  Set to ABP mode
1912 1912  )))
1913 1913  
1914 1914  (((
1915 -(% style="background-color:#dcdcdc" %) **AT+ADR=0**(%%)  ~/~/ Set the Adaptive Data Rate Off
1904 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%)  Set the Adaptive Data Rate Off
1916 1916  )))
1917 1917  
1918 1918  (((
1919 -(% style="background-color:#dcdcdc" %)** AT+DR=5**(%%)  ~/~/ Set Data Rate
1908 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1920 1920  )))
1921 1921  
1922 1922  (((
1923 -(% style="background-color:#dcdcdc" %)** AT+TDC=60000**(%%)  ~/~/ Set transmit interval to 60 seconds
1912 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1924 1924  )))
1925 1925  
1926 1926  (((
1927 -(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4Mhz
1916 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1928 1928  )))
1929 1929  
1930 1930  (((
1931 -(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
1920 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%)  Set RX2Frequency to 868.4Mhz (according to the result from server)
1932 1932  )))
1933 1933  
1934 1934  (((
1935 -(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2DR to match the downlink DR from server. see below
1924 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1936 1936  )))
1937 1937  
1938 1938  (((
1939 -(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%) ~/~/ Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1928 +(% style="background-color:#dcdcdc" %) AT+DADDR=26 01 1A F1 (%%) Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1940 1940  )))
1941 1941  
1942 1942  (((
1943 -(% style="background-color:#dcdcdc" %)** ATZ**         (%%) ~/~/ Reset MCU
1932 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1944 1944  
1945 1945  
1946 1946  )))
... ... @@ -1950,15 +1950,11 @@
1950 1950  )))
1951 1951  
1952 1952  (((
1953 -**~1. Make sure the device is set to ABP mode in the IoT Server.**
1942 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1943 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1944 +3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1945 +4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1954 1954  
1955 -**2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
1956 -
1957 -**3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
1958 -dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1959 -
1960 -**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5**
1961 -
1962 1962  
1963 1963  )))
1964 1964  
... ... @@ -1974,15 +1974,12 @@
1974 1974  === 4.2.3 Change to Class A ===
1975 1975  
1976 1976  
1977 -(((
1978 -(% style="color:blue" %)If sensor JOINED:
1962 +If sensor JOINED
1963 +(% style="background-color:#dcdcdc" %)AT+CLASS=A
1964 +ATZ
1979 1979  
1980 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
1981 -ATZ**
1982 -)))
1983 1983  
1984 1984  
1985 -
1986 1986  = 5. FAQ =
1987 1987  
1988 1988  
... ... @@ -2006,10 +2006,8 @@
2006 2006  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
2007 2007  
2008 2008  
2009 -(((
2010 2010  (% style="color:blue" %)**For LT-22222-L**(%%):
2011 2011  Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
2012 -)))
2013 2013  
2014 2014  
2015 2015  )))
... ... @@ -2090,15 +2090,16 @@
2090 2090  )))
2091 2091  
2092 2092  (((
2093 -(% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2094 -(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2095 -(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2096 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2097 -(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2098 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2099 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2100 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2101 -(% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2073 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
2074 +(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
2075 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
2076 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
2077 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
2078 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
2079 +(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
2080 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
2081 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
2082 +(% style="background-color:#dcdcdc" %)ATZ        (%%) Reset MCU
2102 2102  )))
2103 2103  
2104 2104  
... ... @@ -2141,16 +2141,6 @@
2141 2141  
2142 2142  
2143 2143  
2144 -== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2145 -
2146 -
2147 -LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2148 -
2149 -
2150 -[[image:image-20221006170630-1.png||height="610" width="945"]]
2151 -
2152 -
2153 -
2154 2154  = 6. Trouble Shooting =
2155 2155  
2156 2156  
... ... @@ -2215,6 +2215,7 @@
2215 2215  
2216 2216  
2217 2217  
2189 +
2218 2218  = 8. Packing Info =
2219 2219  
2220 2220  
... ... @@ -2234,6 +2234,7 @@
2234 2234  
2235 2235  
2236 2236  
2209 +
2237 2237  = 9. Support =
2238 2238  
2239 2239  
... ... @@ -2254,3 +2254,5 @@
2254 2254  * LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
2255 2255  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2256 2256  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2230 +
2231 +
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