Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 90.2 >
edited by Xiaoling
on 2022/08/18 11:36
To version < 90.3 >
edited by Xiaoling
on 2022/08/18 11:46
>
Change comment: There is no comment for this version

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... ... @@ -186,7 +186,6 @@
186 186  
187 187  
188 188  
189 -
190 190  == 1.4  Applications ==
191 191  
192 192  
... ... @@ -200,7 +200,6 @@
200 200  
201 201  
202 202  
203 -
204 204  == 1.5 Hardware Variants ==
205 205  
206 206  
... ... @@ -217,7 +217,6 @@
217 217  
218 218  
219 219  
220 -
221 221  = 2. Power ON Device =
222 222  
223 223  
... ... @@ -287,6 +287,7 @@
287 287  [[image:1653298023685-319.png]]
288 288  
289 289  
287 +
290 290  (((
291 291  (% 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.
292 292  )))
... ... @@ -297,6 +297,7 @@
297 297  
298 298  == 3.3 Uplink Payload ==
299 299  
298 +
300 300  There are five working modes + one interrupt mode on LT for different type application:
301 301  
302 302  * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
... ... @@ -306,8 +306,12 @@
306 306  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
307 307  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
308 308  
308 +
309 +
310 +
309 309  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
310 310  
313 +
311 311  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
312 312  
313 313  [[image:image-20220523174024-3.png]]
... ... @@ -344,6 +344,7 @@
344 344  * [1] RO1 relay channel is close and the RO1 LED is ON.
345 345  * [0] RO2 relay channel is open and RO2 LED is OFF;
346 346  
350 +
347 347  **LT22222-L:**
348 348  
349 349  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -359,6 +359,9 @@
359 359  ** DO1 is high in case there is load between DO1 and V+.
360 360  ** DO1 LED is off in both case
361 361  
366 +
367 +
368 +
362 362  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
363 363  
364 364  
... ... @@ -427,6 +427,7 @@
427 427  
428 428  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
429 429  
437 +
430 430  **LT22222-L**: This mode the DI1 is used as a counting pin.
431 431  
432 432  [[image:image-20220523181246-5.png]]
... ... @@ -720,6 +720,7 @@
720 720  
721 721  == 3.4 ​Configure LT via AT or Downlink ==
722 722  
731 +
723 723  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
724 724  
725 725  (((
... ... @@ -730,8 +730,12 @@
730 730  
731 731  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
732 732  
742 +
743 +
744 +
733 733  === 3.4.1 Common Commands ===
734 734  
747 +
735 735  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]]
736 736  
737 737  
... ... @@ -741,6 +741,7 @@
741 741  
742 742  ==== 3.4.2.1 Set Transmit Interval ====
743 743  
757 +
744 744  Set device uplink interval.
745 745  
746 746  * (% style="color:#037691" %)**AT Command:**
... ... @@ -760,6 +760,7 @@
760 760  
761 761  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
762 762  
777 +
763 763  Set work mode.
764 764  
765 765  * (% style="color:#037691" %)**AT Command:**
... ... @@ -779,6 +779,7 @@
779 779  
780 780  ==== 3.4.2.3 Poll an uplink ====
781 781  
797 +
782 782  * (% style="color:#037691" %)**AT Command:**
783 783  
784 784  There is no AT Command to poll uplink
... ... @@ -795,6 +795,7 @@
795 795  
796 796  ==== 3.4.2.4 Enable Trigger Mode ====
797 797  
814 +
798 798  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
799 799  
800 800  * (% style="color:#037691" %)**AT Command:**
... ... @@ -815,6 +815,7 @@
815 815  
816 816  ==== 3.4.2.5 Poll trigger settings ====
817 817  
835 +
818 818  Poll trigger settings,
819 819  
820 820  * (% style="color:#037691" %)**AT Command:**
... ... @@ -831,6 +831,7 @@
831 831  
832 832  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
833 833  
852 +
834 834  Enable Disable DI1/DI2/DI2 as trigger,
835 835  
836 836  * (% style="color:#037691" %)**AT Command:**
... ... @@ -851,6 +851,7 @@
851 851  
852 852  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
853 853  
873 +
854 854  Set DI1 or DI3(for LT-33222-L) trigger.
855 855  
856 856  * (% style="color:#037691" %)**AT Command:**
... ... @@ -870,8 +870,12 @@
870 870  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
871 871  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
872 872  
893 +
894 +
895 +
873 873  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
874 874  
898 +
875 875  Set DI2 trigger.
876 876  
877 877  * (% style="color:#037691" %)**AT Command:**
... ... @@ -898,6 +898,7 @@
898 898  
899 899  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
900 900  
925 +
901 901  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
902 902  
903 903  * (% style="color:#037691" %)**AT Command**
... ... @@ -914,6 +914,7 @@
914 914  
915 915  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
916 916  
942 +
917 917  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
918 918  
919 919  * (% style="color:#037691" %)**AT Command**
... ... @@ -930,6 +930,7 @@
930 930  
931 931  ==== 3.4.2.11 Trigger – Set minimum interval ====
932 932  
959 +
933 933  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
934 934  
935 935  * (% style="color:#037691" %)**AT Command**
... ... @@ -952,6 +952,7 @@
952 952  
953 953  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
954 954  
982 +
955 955  * (% style="color:#037691" %)**AT Command**
956 956  
957 957  There is no AT Command to control Digital Output
... ... @@ -983,6 +983,7 @@
983 983  
984 984  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
985 985  
1014 +
986 986  * (% style="color:#037691" %)**AT Command**
987 987  
988 988  There is no AT Command to control Digital Output
... ... @@ -1049,6 +1049,7 @@
1049 1049  
1050 1050  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1051 1051  
1081 +
1052 1052  * (% style="color:#037691" %)**AT Command:**
1053 1053  
1054 1054  There is no AT Command to control Relay Output
... ... @@ -1078,6 +1078,7 @@
1078 1078  
1079 1079  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1080 1080  
1111 +
1081 1081  * (% style="color:#037691" %)**AT Command:**
1082 1082  
1083 1083  There is no AT Command to control Relay Output
... ... @@ -1132,6 +1132,7 @@
1132 1132  
1133 1133  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1134 1134  
1166 +
1135 1135  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1136 1136  
1137 1137  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1148,6 +1148,7 @@
1148 1148  
1149 1149  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1150 1150  
1183 +
1151 1151  * (% style="color:#037691" %)**AT Command:**
1152 1152  
1153 1153  **AT+SETCNT=aa,(bb cc dd ee) **
... ... @@ -1170,6 +1170,7 @@
1170 1170  
1171 1171  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1172 1172  
1206 +
1173 1173  Clear counting for counting mode
1174 1174  
1175 1175  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1186,6 +1186,7 @@
1186 1186  
1187 1187  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1188 1188  
1223 +
1189 1189  * (% style="color:#037691" %)**AT Command:**
1190 1190  
1191 1191  **AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
... ... @@ -1205,6 +1205,7 @@
1205 1205  
1206 1206  == 3.5 Integrate with Mydevice ==
1207 1207  
1243 +
1208 1208  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1209 1209  
1210 1210  (((
... ... @@ -1213,6 +1213,8 @@
1213 1213  
1214 1214  (((
1215 1215  (% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1252 +
1253 +
1216 1216  )))
1217 1217  
1218 1218  [[image:image-20220719105525-1.png||height="377" width="677"]]
... ... @@ -1252,8 +1252,10 @@
1252 1252  
1253 1253  == 3.6 Interface Detail ==
1254 1254  
1293 +
1255 1255  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1256 1256  
1296 +
1257 1257  Support NPN Type sensor
1258 1258  
1259 1259  [[image:1653356991268-289.png]]
... ... @@ -1262,6 +1262,7 @@
1262 1262  
1263 1263  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1264 1264  
1305 +
1265 1265  (((
1266 1266  The DI port of LT-22222-L can support NPN or PNP output sensor.
1267 1267  )))
... ... @@ -1268,7 +1268,9 @@
1268 1268  
1269 1269  (((
1270 1270  (((
1271 -Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1312 +Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high.
1313 +
1314 +
1272 1272  )))
1273 1273  )))
1274 1274  
... ... @@ -1313,6 +1313,8 @@
1313 1313  
1314 1314  (((
1315 1315  
1359 +
1360 +
1316 1316  )))
1317 1317  
1318 1318  (((
... ... @@ -1344,6 +1344,8 @@
1344 1344  
1345 1345  (((
1346 1346  
1392 +
1393 +
1347 1347  )))
1348 1348  
1349 1349  (((
... ... @@ -1377,6 +1377,7 @@
1377 1377  
1378 1378  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1379 1379  
1427 +
1380 1380  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1381 1381  
1382 1382  [[image:1653357531600-905.png]]
... ... @@ -1385,6 +1385,7 @@
1385 1385  
1386 1386  === 3.6.4 Analog Input Interface ===
1387 1387  
1436 +
1388 1388  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
1389 1389  
1390 1390  
... ... @@ -1416,6 +1416,7 @@
1416 1416  
1417 1417  === 3.6.5 Relay Output ===
1418 1418  
1468 +
1419 1419  (((
1420 1420  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1421 1421  )))
... ... @@ -1428,6 +1428,7 @@
1428 1428  
1429 1429  == 3.7 LEDs Indicators ==
1430 1430  
1481 +
1431 1431  [[image:image-20220524100748-11.png]]
1432 1432  
1433 1433  
... ... @@ -1434,8 +1434,10 @@
1434 1434  
1435 1435  = 4. Use AT Command =
1436 1436  
1488 +
1437 1437  == 4.1 Access AT Command ==
1438 1438  
1491 +
1439 1439  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.
1440 1440  
1441 1441  [[image:1653358238933-385.png]]
... ... @@ -1640,6 +1640,7 @@
1640 1640  
1641 1641  == 4.2 Common AT Command Sequence ==
1642 1642  
1696 +
1643 1643  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1644 1644  
1645 1645  (((
... ... @@ -1763,13 +1763,16 @@
1763 1763  
1764 1764  === 4.2.3 Change to Class A ===
1765 1765  
1820 +
1766 1766  If sensor JOINED
1767 1767  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1768 1768  ATZ
1769 1769  
1770 1770  
1826 +
1771 1771  = 5. FAQ =
1772 1772  
1829 +
1773 1773  == 5.1 How to upgrade the image? ==
1774 1774  
1775 1775  
... ... @@ -1792,6 +1792,8 @@
1792 1792  
1793 1793  (% style="color:blue" %)**For LT-22222-L**(%%):
1794 1794  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.
1852 +
1853 +
1795 1795  )))
1796 1796  
1797 1797   [[image:image-20220524103407-12.png]]
... ... @@ -1803,6 +1803,7 @@
1803 1803  
1804 1804  (% 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:
1805 1805  
1865 +
1806 1806  [[image:1653360054704-518.png||height="186" width="745"]]
1807 1807  
1808 1808  
... ... @@ -1811,6 +1811,8 @@
1811 1811  
1812 1812  
1813 1813  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1874 +
1875 +
1814 1814  )))
1815 1815  )))
1816 1816  
... ... @@ -1821,7 +1821,10 @@
1821 1821  (((
1822 1822  
1823 1823  
1886 +
1824 1824  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1888 +
1889 +
1825 1825  )))
1826 1826  
1827 1827  (((
... ... @@ -1839,7 +1839,7 @@
1839 1839  )))
1840 1840  
1841 1841  (((
1842 -(% style="color:#4f81bd" %)**Step1**(%%): Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1907 +(% style="color:blue" %)**Step1**(%%):  Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1843 1843  )))
1844 1844  
1845 1845  (((
... ... @@ -1847,12 +1847,12 @@
1847 1847  )))
1848 1848  
1849 1849  (((
1850 -(% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
1915 +(% style="color:red" %)**Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.**
1851 1851  )))
1852 1852  
1853 1853  
1854 1854  (((
1855 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1920 +(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1856 1856  )))
1857 1857  
1858 1858  (((
... ... @@ -1876,16 +1876,21 @@
1876 1876  [[image:1653360498588-932.png||height="485" width="726"]]
1877 1877  
1878 1878  
1944 +
1879 1879  == 5.4 Can I see counting event in Serial? ==
1880 1880  
1947 +
1881 1881  (((
1882 -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.
1949 +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.
1883 1883  
1884 1884  
1952 +
1885 1885  == 5.5 Can i use point to point communication for LT-22222-L? ==
1886 1886  
1955 +
1887 1887  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1888 1888  
1958 +
1889 1889  
1890 1890  )))
1891 1891  
... ... @@ -1892,6 +1892,7 @@
1892 1892  (((
1893 1893  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1894 1894  
1965 +
1895 1895  If the device is not shut down, but directly powered off.
1896 1896  
1897 1897  It will default that this is a power-off state.
... ... @@ -1901,6 +1901,7 @@
1901 1901  After restart, the status before power failure will be read from flash.
1902 1902  
1903 1903  
1975 +
1904 1904  = 6. Trouble Shooting =
1905 1905  )))
1906 1906  
... ... @@ -1907,6 +1907,8 @@
1907 1907  (((
1908 1908  (((
1909 1909  == 6.1 Downlink doesn't work, how to solve it? ==
1982 +
1983 +
1910 1910  )))
1911 1911  )))
1912 1912  
... ... @@ -1917,7 +1917,10 @@
1917 1917  (((
1918 1918  
1919 1919  
1994 +
1920 1920  == 6.2 Have trouble to upload image. ==
1996 +
1997 +
1921 1921  )))
1922 1922  
1923 1923  (((
... ... @@ -1927,7 +1927,10 @@
1927 1927  (((
1928 1928  
1929 1929  
2007 +
1930 1930  == 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2009 +
2010 +
1931 1931  )))
1932 1932  
1933 1933  (((
... ... @@ -1935,6 +1935,7 @@
1935 1935  )))
1936 1936  
1937 1937  
2018 +
1938 1938  = 7. Order Info =
1939 1939  
1940 1940  
... ... @@ -1952,6 +1952,10 @@
1952 1952  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
1953 1953  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1954 1954  
2036 +
2037 +
2038 +
2039 +
1955 1955  = 8. Packing Info =
1956 1956  
1957 1957  
... ... @@ -1969,18 +1969,32 @@
1969 1969  * Package Size / pcs : 14.5 x 8 x 5 cm
1970 1970  * Weight / pcs : 170g
1971 1971  
2057 +
2058 +
2059 +
2060 +
1972 1972  = 9. Support =
1973 1973  
2063 +
1974 1974  * (((
1975 1975  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.
1976 1976  )))
1977 1977  * (((
1978 1978  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]]
2069 +
2070 +
2071 +
2072 +
2073 +
1979 1979  )))
1980 1980  
1981 1981  = 10. Reference​​​​​ =
1982 1982  
2078 +
1983 1983  * 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]]
1984 1984  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1985 1985  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1986 1986  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2083 +
2084 +
2085 +

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