Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 101.4 >
edited by Xiaoling
on 2022/10/25 15:24
To version < 101.2 >
edited by Xiaoling
on 2022/10/13 16:38
>
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.
... ... @@ -219,9 +219,7 @@
219 219  = 2. Power ON Device =
220 220  
221 221  
222 -(((
223 223  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.
224 -)))
225 225  
226 226  (((
227 227  PWR will on when device is properly powered.
... ... @@ -280,12 +280,12 @@
280 280  
281 281  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
282 282  
283 -**Add APP EUI in the application.**
279 +Add APP EUI in the application.
284 284  
285 285  [[image:1653297955910-247.png||height="321" width="716"]]
286 286  
287 287  
288 -**Add APP KEY and DEV EUI**
284 +Add APP KEY and DEV EUI
289 289  
290 290  [[image:1653298023685-319.png]]
291 291  
... ... @@ -293,8 +293,6 @@
293 293  
294 294  (((
295 295  (% 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.
296 -
297 -
298 298  )))
299 299  
300 300  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -318,9 +318,7 @@
318 318  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
319 319  
320 320  
321 -(((
322 322  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
323 -)))
324 324  
325 325  [[image:image-20220523174024-3.png]]
326 326  
... ... @@ -356,6 +356,8 @@
356 356  * [1] RO1 relay channel is close and the RO1 LED is ON.
357 357  * [0] RO2 relay channel is open and RO2 LED is OFF;
358 358  
351 +
352 +
359 359  **LT22222-L:**
360 360  
361 361  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -372,13 +372,10 @@
372 372  ** DO1 LED is off in both case
373 373  
374 374  
375 -
376 376  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
377 377  
378 378  
379 -(((
380 380  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
381 -)))
382 382  
383 383  (((
384 384  Total : 11 bytes payload
... ... @@ -410,15 +410,11 @@
410 410  (% class="box infomessage" %)
411 411  (((
412 412  (((
413 -(((
414 414  **AT+MOD=2**
415 -)))
416 416  
417 -(((
418 418  **ATZ**
419 419  )))
420 420  )))
421 -)))
422 422  
423 423  (((
424 424  
... ... @@ -478,15 +478,11 @@
478 478  (% class="box infomessage" %)
479 479  (((
480 480  (((
481 -(((
482 482  **AT+MOD=3**
483 -)))
484 484  
485 -(((
486 486  **ATZ**
487 487  )))
488 488  )))
489 -)))
490 490  
491 491  (((
492 492  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -497,13 +497,9 @@
497 497  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
498 498  
499 499  
500 -(((
501 501  **LT22222-L**: This mode the DI1 is used as a counting pin.
502 -)))
503 503  
504 -(((
505 505  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.
506 -)))
507 507  
508 508  [[image:image-20220523181903-8.png]]
509 509  
... ... @@ -531,17 +531,14 @@
531 531  (% class="box infomessage" %)
532 532  (((
533 533  (((
534 -(((
535 535  **AT+MOD=4**
536 -)))
537 537  
538 -(((
539 539  **ATZ**
540 540  )))
541 541  )))
542 -)))
543 543  
544 544  
520 +
545 545  (((
546 546  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
547 547  )))
... ... @@ -595,15 +595,11 @@
595 595  (% class="box infomessage" %)
596 596  (((
597 597  (((
598 -(((
599 599  **AT+MOD=5**
600 -)))
601 601  
602 -(((
603 603  **ATZ**
604 604  )))
605 605  )))
606 -)))
607 607  
608 608  (((
609 609  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -751,6 +751,7 @@
751 751  
752 752  
753 753  
726 +
754 754  === 3.3.7 Payload Decoder ===
755 755  
756 756  (((
... ... @@ -764,15 +764,11 @@
764 764  == 3.4 ​Configure LT via AT or Downlink ==
765 765  
766 766  
767 -(((
768 768  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
769 -)))
770 770  
771 771  (((
772 -(((
773 773  There are two kinds of Commands:
774 774  )))
775 -)))
776 776  
777 777  * (% 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]]
778 778  
... ... @@ -780,13 +780,10 @@
780 780  
781 781  
782 782  
783 -
784 784  === 3.4.1 Common Commands ===
785 785  
786 786  
787 -(((
788 788  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]]
789 -)))
790 790  
791 791  
792 792  
... ... @@ -932,6 +932,8 @@
932 932  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
933 933  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
934 934  
901 +
902 +
935 935  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
936 936  
937 937  
... ... @@ -1597,13 +1597,13 @@
1597 1597  We take the wind speed sensor as an example for reference only.
1598 1598  
1599 1599  
1600 -(% style="color:blue" %)**Specifications of the wind speed sensor:**
1568 +**Specifications of the wind speed sensor:**
1601 1601  
1602 -**Red:  12~~24v**
1570 +Red:  12~~24v
1603 1603  
1604 -**Yellow:  4~~20mA**
1572 +Yellow:  4~~20mA
1605 1605  
1606 -**Black:  GND**
1574 +Black:  GND
1607 1607  
1608 1608  
1609 1609  **Connection diagram:**
... ... @@ -1641,14 +1641,8 @@
1641 1641  == 4.1 Access AT Command ==
1642 1642  
1643 1643  
1644 -(((
1645 1645  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.
1646 -)))
1647 1647  
1648 -(((
1649 -
1650 -)))
1651 -
1652 1652  [[image:1653358238933-385.png]]
1653 1653  
1654 1654  
... ... @@ -1676,7 +1676,7 @@
1676 1676  )))
1677 1677  
1678 1678  (((
1679 -AT+<CMD>=?       :  Get the value
1641 +AT+<CMD>=?       : Get the value
1680 1680  )))
1681 1681  
1682 1682  (((
... ... @@ -1704,11 +1704,11 @@
1704 1704  )))
1705 1705  
1706 1706  (((
1707 -AT+APPSKEY:  Get or Set the Application Session Key
1669 +AT+APPSKEY: Get or Set the Application Session Key
1708 1708  )))
1709 1709  
1710 1710  (((
1711 -AT+APPEUI:  Get or Set the Application EUI
1673 +AT+APPEUI: Get or Set the Application EUI
1712 1712  )))
1713 1713  
1714 1714  (((
... ... @@ -1720,7 +1720,7 @@
1720 1720  )))
1721 1721  
1722 1722  (((
1723 -AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1685 +AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1724 1724  )))
1725 1725  
1726 1726  (((
... ... @@ -1756,7 +1756,7 @@
1756 1756  )))
1757 1757  
1758 1758  (((
1759 -AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1721 +AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1760 1760  )))
1761 1761  
1762 1762  (((
... ... @@ -1800,7 +1800,7 @@
1800 1800  )))
1801 1801  
1802 1802  (((
1803 -AT+VER:  Get current image version and Frequency Band
1765 +AT+VER: Get current image version and Frequency Band
1804 1804  )))
1805 1805  
1806 1806  (((
... ... @@ -1808,7 +1808,7 @@
1808 1808  )))
1809 1809  
1810 1810  (((
1811 -AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1773 +AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1812 1812  )))
1813 1813  
1814 1814  (((
... ... @@ -1857,42 +1857,40 @@
1857 1857  (((
1858 1858  
1859 1859  
1860 -(((
1861 -(% style="color:blue" %)**If device has not joined network yet:**
1822 +**If device has not joined network yet:**
1862 1862  )))
1863 -)))
1864 1864  
1865 1865  (((
1866 -(% style="background-color:#dcdcdc" %)**123456**
1826 +(% style="background-color:#dcdcdc" %)123456
1867 1867  )))
1868 1868  
1869 1869  (((
1870 -(% style="background-color:#dcdcdc" %)**AT+FDR**
1830 +(% style="background-color:#dcdcdc" %)AT+FDR
1871 1871  )))
1872 1872  
1873 1873  (((
1874 -(% style="background-color:#dcdcdc" %)**123456**
1834 +(% style="background-color:#dcdcdc" %)123456
1875 1875  )))
1876 1876  
1877 1877  (((
1878 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1838 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1879 1879  )))
1880 1880  
1881 1881  (((
1882 -(% style="background-color:#dcdcdc" %)**ATZ**
1842 +(% style="background-color:#dcdcdc" %)ATZ
1883 1883  )))
1884 1884  
1885 1885  
1886 1886  (((
1887 -(% style="color:blue" %)**If device already joined network:**
1847 +**If device already joined network:**
1888 1888  )))
1889 1889  
1890 1890  (((
1891 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1851 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1892 1892  )))
1893 1893  
1894 1894  (((
1895 -(% style="background-color:#dcdcdc" %)**ATZ**
1855 +(% style="background-color:#dcdcdc" %)ATZ
1896 1896  )))
1897 1897  
1898 1898  
... ... @@ -1902,57 +1902,55 @@
1902 1902  (((
1903 1903  
1904 1904  
1905 -(((
1906 -(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1865 +(% style="background-color:#dcdcdc" %)123456(%%)  Enter Password to have AT access.
1907 1907  )))
1908 -)))
1909 1909  
1910 1910  (((
1911 -(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset Parameters to Factory Default, Keys Reserve
1869 +(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1912 1912  )))
1913 1913  
1914 1914  (((
1915 -(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1873 +(% style="background-color:#dcdcdc" %) 123456(%%)  Enter Password to have AT access.
1916 1916  )))
1917 1917  
1918 1918  (((
1919 -(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to work in CLASS C
1877 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1920 1920  )))
1921 1921  
1922 1922  (((
1923 -(% style="background-color:#dcdcdc" %)** AT+NJM=0**(%%)  ~/~/ Set to ABP mode
1881 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)  Set to ABP mode
1924 1924  )))
1925 1925  
1926 1926  (((
1927 -(% style="background-color:#dcdcdc" %) **AT+ADR=0**(%%)  ~/~/ Set the Adaptive Data Rate Off
1885 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%)  Set the Adaptive Data Rate Off
1928 1928  )))
1929 1929  
1930 1930  (((
1931 -(% style="background-color:#dcdcdc" %)** AT+DR=5**(%%)  ~/~/ Set Data Rate
1889 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1932 1932  )))
1933 1933  
1934 1934  (((
1935 -(% style="background-color:#dcdcdc" %)** AT+TDC=60000**(%%)  ~/~/ Set transmit interval to 60 seconds
1893 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1936 1936  )))
1937 1937  
1938 1938  (((
1939 -(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4Mhz
1897 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1940 1940  )))
1941 1941  
1942 1942  (((
1943 -(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
1901 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%)  Set RX2Frequency to 868.4Mhz (according to the result from server)
1944 1944  )))
1945 1945  
1946 1946  (((
1947 -(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2DR to match the downlink DR from server. see below
1905 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1948 1948  )))
1949 1949  
1950 1950  (((
1951 -(% 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.
1909 +(% 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.
1952 1952  )))
1953 1953  
1954 1954  (((
1955 -(% style="background-color:#dcdcdc" %)** ATZ**         (%%) ~/~/ Reset MCU
1913 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1956 1956  
1957 1957  
1958 1958  )))
... ... @@ -1962,15 +1962,11 @@
1962 1962  )))
1963 1963  
1964 1964  (((
1965 -**~1. Make sure the device is set to ABP mode in the IoT Server.**
1923 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1924 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1925 +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.
1926 +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
1966 1966  
1967 -**2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
1968 -
1969 -**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?
1970 -dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1971 -
1972 -**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**
1973 -
1974 1974  
1975 1975  )))
1976 1976  
... ... @@ -1986,15 +1986,12 @@
1986 1986  === 4.2.3 Change to Class A ===
1987 1987  
1988 1988  
1989 -(((
1990 -(% style="color:blue" %)If sensor JOINED:
1943 +If sensor JOINED
1944 +(% style="background-color:#dcdcdc" %)AT+CLASS=A
1945 +ATZ
1991 1991  
1992 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
1993 -ATZ**
1994 -)))
1995 1995  
1996 1996  
1997 -
1998 1998  = 5. FAQ =
1999 1999  
2000 2000  
... ... @@ -2018,10 +2018,8 @@
2018 2018  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
2019 2019  
2020 2020  
2021 -(((
2022 2022  (% style="color:blue" %)**For LT-22222-L**(%%):
2023 2023  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.
2024 -)))
2025 2025  
2026 2026  
2027 2027  )))
... ... @@ -2102,15 +2102,16 @@
2102 2102  )))
2103 2103  
2104 2104  (((
2105 -(% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2106 -(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2107 -(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2108 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2109 -(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2110 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2111 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2112 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2113 -(% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2054 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
2055 +(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
2056 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
2057 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
2058 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
2059 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
2060 +(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
2061 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
2062 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
2063 +(% style="background-color:#dcdcdc" %)ATZ        (%%) Reset MCU
2114 2114  )))
2115 2115  
2116 2116  
... ... @@ -2152,13 +2152,10 @@
2152 2152  After restart, the status before power failure will be read from flash.
2153 2153  
2154 2154  
2155 -
2156 2156  == 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2157 2157  
2158 -
2159 2159  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2160 2160  
2161 -
2162 2162  [[image:image-20221006170630-1.png||height="610" width="945"]]
2163 2163  
2164 2164  

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