Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 106.1 >
edited by Bei Jinggeng
on 2022/11/18 10:02
To version < 118.1 >
edited by Ellie Zhang
on 2023/05/09 09:04
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Bei
1 +XWiki.Ellie
Content
... ... @@ -15,7 +15,6 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 -
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
... ... @@ -27,7 +27,7 @@
27 27  )))
28 28  
29 29  (((
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.
29 +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, building automation, and so on.
31 31  )))
32 32  
33 33  (((
... ... @@ -54,7 +54,6 @@
54 54  
55 55  )))
56 56  
57 -
58 58  == 1.2  Specifications ==
59 59  
60 60  (((
... ... @@ -171,7 +171,6 @@
171 171  Packet engine up to 256 bytes with CRC.
172 172  
173 173  
174 -
175 175  
176 176  )))
177 177  
... ... @@ -179,11 +179,17 @@
179 179  
180 180  
181 181  * LoRaWAN Class A & Class C protocol
179 +
182 182  * Optional Customized LoRa Protocol
181 +
183 183  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 +
184 184  * AT Commands to change parameters
185 +
185 185  * Remote configure parameters via LoRa Downlink
187 +
186 186  * Firmware upgradable via program port
189 +
187 187  * Counting
188 188  
189 189  
... ... @@ -191,10 +191,15 @@
191 191  
192 192  
193 193  * Smart Buildings & Home Automation
197 +
194 194  * Logistics and Supply Chain Management
199 +
195 195  * Smart Metering
201 +
196 196  * Smart Agriculture
203 +
197 197  * Smart Cities
205 +
198 198  * Smart Factory
199 199  
200 200  
... ... @@ -201,9 +201,12 @@
201 201  == 1.5 Hardware Variants ==
202 202  
203 203  
204 -(% border="1" style="background-color:#f7faff; width:500px" %)
205 -|(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
206 -|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
212 +(% border="1" style="background-color:#f2f2f2; width:500px" %)
213 +|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:334px" %)**Description**
214 +|(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
215 +(% style="text-align:center" %)
216 +[[image:image-20230424115112-1.png||height="106" width="58"]]
217 +)))|(% style="width:334px" %)(((
207 207  * 2 x Digital Input (Bi-direction)
208 208  * 2 x Digital Output
209 209  * 2 x Relay Output (5A@250VAC / 30VDC)
... ... @@ -229,10 +229,8 @@
229 229  [[image:1653297104069-180.png]]
230 230  
231 231  
232 -
233 233  = 3. Operation Mode =
234 234  
235 -
236 236  == 3.1 How it works? ==
237 237  
238 238  
... ... @@ -245,7 +245,6 @@
245 245  )))
246 246  
247 247  
248 -
249 249  == 3.2 Example to join LoRaWAN network ==
250 250  
251 251  
... ... @@ -272,7 +272,7 @@
272 272  Each LT is shipped with a sticker with the default device EUI as below:
273 273  )))
274 274  
275 -[[image:1653297924498-393.png]]
283 +[[image:image-20230425173427-2.png]]
276 276  
277 277  
278 278  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
... ... @@ -297,7 +297,6 @@
297 297  [[image:1653298044601-602.png||height="405" width="709"]]
298 298  
299 299  
300 -
301 301  == 3.3 Uplink Payload ==
302 302  
303 303  
... ... @@ -441,7 +441,6 @@
441 441  )))
442 442  
443 443  
444 -
445 445  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
446 446  
447 447  
... ... @@ -488,7 +488,6 @@
488 488  )))
489 489  
490 490  
491 -
492 492  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
493 493  
494 494  
... ... @@ -557,7 +557,6 @@
557 557  )))
558 558  
559 559  
560 -
561 561  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
562 562  
563 563  
... ... @@ -605,7 +605,6 @@
605 605  )))
606 606  
607 607  
608 -
609 609  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
610 610  
611 611  
... ... @@ -660,7 +660,6 @@
660 660  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
661 661  
662 662  
663 -
664 664  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
665 665  
666 666  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -721,7 +721,6 @@
721 721  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
722 722  
723 723  
724 -
725 725  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
726 726  
727 727  [[image:image-20220524090456-4.png]]
... ... @@ -735,7 +735,6 @@
735 735  00000101: Means both DI1 and DI2 trigger are enabled.
736 736  
737 737  
738 -
739 739  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
740 740  
741 741  Downlink command to poll MOD6 status:
... ... @@ -745,7 +745,6 @@
745 745  When device got this command, it will send the MOD6 payload.
746 746  
747 747  
748 -
749 749  === 3.3.7 Payload Decoder ===
750 750  
751 751  (((
... ... @@ -755,7 +755,6 @@
755 755  )))
756 756  
757 757  
758 -
759 759  == 3.4 ​Configure LT via AT or Downlink ==
760 760  
761 761  
... ... @@ -782,10 +782,8 @@
782 782  )))
783 783  
784 784  
785 -
786 786  === 3.4.2 Sensor related commands ===
787 787  
788 -
789 789  ==== 3.4.2.1 Set Transmit Interval ====
790 790  
791 791  
... ... @@ -861,7 +861,6 @@
861 861  
862 862  
863 863  
864 -
865 865  ==== 3.4.2.5 Poll trigger settings ====
866 866  
867 867  
... ... @@ -944,7 +944,7 @@
944 944  
945 945  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
946 946  
947 -(% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG1=aa,0x(bb cc)
942 +(% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG2=aa,0x(bb cc)
948 948  
949 949  
950 950  
... ... @@ -1076,6 +1076,14 @@
1076 1076  
1077 1077   Latching time. Unit: ms
1078 1078  
1074 +
1075 +(% style="color:red" %)**Note: **
1076 +
1077 + Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1078 +
1079 + Before Firmwre v1.6.0 the latch time only suport 2 bytes.
1080 +
1081 +
1079 1079  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1080 1080  
1081 1081  
... ... @@ -1099,7 +1099,7 @@
1099 1099  
1100 1100  
1101 1101  
1102 -==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1105 +==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1103 1103  
1104 1104  
1105 1105  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1121,7 +1121,7 @@
1121 1121  )))
1122 1122  
1123 1123  (((
1124 -[[image:image-20220524093724-9.png]]
1127 +[[image:image-20230426161322-1.png]]
1125 1125  )))
1126 1126  
1127 1127  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
... ... @@ -1128,7 +1128,6 @@
1128 1128  
1129 1129  
1130 1130  
1131 -
1132 1132  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1133 1133  
1134 1134  
... ... @@ -1160,12 +1160,20 @@
1160 1160  
1161 1161  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1162 1162  
1165 +
1166 +(% style="color:red" %)**Note:**
1167 +
1168 + Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1169 +
1170 + Before Firmwre v1.6.0 the latch time only suport 2 bytes.
1171 +
1172 +
1163 1163  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1164 1164  
1165 1165  
1166 1166  **Example payload:**
1167 1167  
1168 -**~1. 05 01 11 07 D**
1178 +**~1. 05 01 11 07 D0**
1169 1169  
1170 1170  Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1171 1171  
... ... @@ -1256,9 +1256,9 @@
1256 1256  
1257 1257  * (% style="color:#037691" %)**AT Command:**
1258 1258  
1259 -(% style="color:blue" %)**AT+RODORET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
1269 +(% style="color:blue" %)**AT+RODORESET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
1260 1260  
1261 -(% style="color:blue" %)**AT+RODORET=0    **(%%)~/~/ After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
1271 +(% style="color:blue" %)**AT+RODORESET=0    **(%%)~/~/ After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
1262 1262  
1263 1263  
1264 1264  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
... ... @@ -1300,7 +1300,6 @@
1300 1300  
1301 1301  
1302 1302  
1303 -
1304 1304  ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1305 1305  
1306 1306  
... ... @@ -1317,7 +1317,6 @@
1317 1317  
1318 1318  
1319 1319  
1320 -
1321 1321  ==== 3.4.2.25 Copy downlink to uplink ====
1322 1322  
1323 1323  
... ... @@ -1356,7 +1356,6 @@
1356 1356  [[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-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1357 1357  
1358 1358  
1359 -
1360 1360  == 3.5 Integrate with Mydevice ==
1361 1361  
1362 1362  
... ... @@ -1406,10 +1406,8 @@
1406 1406  [[image:image-20220524094909-5.png||height="341" width="734"]]
1407 1407  
1408 1408  
1409 -
1410 1410  == 3.6 Interface Detail ==
1411 1411  
1412 -
1413 1413  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1414 1414  
1415 1415  
... ... @@ -1418,7 +1418,6 @@
1418 1418  [[image:1653356991268-289.png]]
1419 1419  
1420 1420  
1421 -
1422 1422  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1423 1423  
1424 1424  
... ... @@ -1475,8 +1475,6 @@
1475 1475  
1476 1476  (((
1477 1477  
1478 -
1479 -
1480 1480  )))
1481 1481  
1482 1482  (((
... ... @@ -1508,8 +1508,6 @@
1508 1508  
1509 1509  (((
1510 1510  
1511 -
1512 -
1513 1513  )))
1514 1514  
1515 1515  (((
... ... @@ -1540,18 +1540,16 @@
1540 1540  )))
1541 1541  
1542 1542  
1543 -
1544 1544  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1545 1545  
1546 1546  
1547 -**NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
1546 +(% style="color:blue" %)**NPN output**(%%): GND or Float. Max voltage can apply to output pin is 36v.
1548 1548  
1549 -Note: DO pins go to float when device is power off.
1548 +(% style="color:red" %)**Note: DO pins go to float when device is power off.**
1550 1550  
1551 1551  [[image:1653357531600-905.png]]
1552 1552  
1553 1553  
1554 -
1555 1555  === 3.6.4 Analog Input Interface ===
1556 1556  
1557 1557  
... ... @@ -1569,9 +1569,9 @@
1569 1569  
1570 1570  (% style="color:blue" %)**Specifications of the wind speed sensor:**
1571 1571  
1572 -**Red:  12~~24v**
1570 +(% style="color:red" %)**Red:  12~~24v**
1573 1573  
1574 -**Yellow:  4~~20mA**
1572 +(% style="color:#ffc000" %)**Yellow:  4~~20mA**
1575 1575  
1576 1576  **Black:  GND**
1577 1577  
... ... @@ -1583,7 +1583,6 @@
1583 1583  [[image:1653357648330-671.png||height="155" width="733"]]
1584 1584  
1585 1585  
1586 -
1587 1587  === 3.6.5 Relay Output ===
1588 1588  
1589 1589  
... ... @@ -1599,7 +1599,6 @@
1599 1599  [[image:image-20220524100215-10.png||height="382" width="723"]]
1600 1600  
1601 1601  
1602 -
1603 1603  == 3.7 LEDs Indicators ==
1604 1604  
1605 1605  
... ... @@ -1606,10 +1606,8 @@
1606 1606  [[image:image-20220524100748-11.png]]
1607 1607  
1608 1608  
1609 -
1610 1610  = 4. Use AT Command =
1611 1611  
1612 -
1613 1613  == 4.1 Access AT Command ==
1614 1614  
1615 1615  
... ... @@ -1820,10 +1820,8 @@
1820 1820  )))
1821 1821  
1822 1822  
1823 -
1824 1824  == 4.2 Common AT Command Sequence ==
1825 1825  
1826 -
1827 1827  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1828 1828  
1829 1829  (((
... ... @@ -1868,7 +1868,6 @@
1868 1868  )))
1869 1869  
1870 1870  
1871 -
1872 1872  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1873 1873  
1874 1874  (((
... ... @@ -1941,7 +1941,7 @@
1941 1941  **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?
1942 1942  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1943 1943  
1944 -**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**
1935 +**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.**
1945 1945  
1946 1946  
1947 1947  )))
... ... @@ -1954,7 +1954,6 @@
1954 1954  
1955 1955  )))
1956 1956  
1957 -
1958 1958  === 4.2.3 Change to Class A ===
1959 1959  
1960 1960  
... ... @@ -1966,13 +1966,19 @@
1966 1966  )))
1967 1967  
1968 1968  
1959 += 5. Case Study =
1969 1969  
1970 -= 5. FAQ =
1961 +== 5.1 Counting how many objects pass in Flow Line ==
1971 1971  
1972 1972  
1973 -== 5.1 How to upgrade the image? ==
1964 +Reference Link: [[How to set up to count objects pass in flow line>>How to set up to count objects pass in flow line]]?
1974 1974  
1975 1975  
1967 += 6. FAQ =
1968 +
1969 +== 6.1 How to upgrade the image? ==
1970 +
1971 +
1976 1976  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1977 1977  
1978 1978  * Support new features
... ... @@ -2000,8 +2000,10 @@
2000 2000  
2001 2001   [[image:image-20220524103407-12.png]]
2002 2002  
1999 +
2003 2003  [[image:image-20220524103429-13.png]]
2004 2004  
2002 +
2005 2005  [[image:image-20220524104033-15.png]]
2006 2006  
2007 2007  
... ... @@ -2013,10 +2013,8 @@
2013 2013  
2014 2014  (((
2015 2015  (((
2016 -
2014 +== 6.2 How to change the LoRa Frequency Bands/Region? ==
2017 2017  
2018 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
2019 -
2020 2020  
2021 2021  )))
2022 2022  )))
... ... @@ -2028,9 +2028,8 @@
2028 2028  (((
2029 2029  
2030 2030  
2027 +== 6.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2031 2031  
2032 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2033 -
2034 2034  
2035 2035  )))
2036 2036  
... ... @@ -2092,26 +2092,29 @@
2092 2092  [[image:1653360498588-932.png||height="485" width="726"]]
2093 2093  
2094 2094  
2090 +== 6.4 How to change the uplink interval？ ==
2095 2095  
2096 -== 5.4 Can I see counting event in Serial? ==
2097 2097  
2093 +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/]]
2098 2098  
2099 -(((
2100 -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.
2101 2101  
2096 +== 6.5 Can I see counting event in Serial? ==
2102 2102  
2103 2103  
2104 -== 5.5 Can i use point to point communication for LT-22222-L? ==
2099 +(((
2100 +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.
2105 2105  
2106 2106  
2107 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
2103 +== 6.6 Can i use point to point communication for LT-22222-L? ==
2108 2108  
2109 2109  
2106 +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]].
2107 +
2110 2110  
2111 2111  )))
2112 2112  
2113 2113  (((
2114 -== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2112 +== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2115 2115  
2116 2116  
2117 2117  If the device is not shut down, but directly powered off.
... ... @@ -2123,10 +2123,9 @@
2123 2123  After restart, the status before power failure will be read from flash.
2124 2124  
2125 2125  
2124 +== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2126 2126  
2127 -== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2128 2128  
2129 -
2130 2130  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2131 2131  
2132 2132  
... ... @@ -2133,21 +2133,18 @@
2133 2133  [[image:image-20221006170630-1.png||height="610" width="945"]]
2134 2134  
2135 2135  
2136 -== 5.8 Can LT22222-L save RO state? ==
2133 +== 6.9 Can LT22222-L save RO state? ==
2137 2137  
2138 2138  
2139 2139  Firmware version needs to be no less than 1.6.0.
2140 2140  
2141 2141  
2142 -
2143 -= 6. Trouble Shooting =
2144 -
2145 -
2139 += 7. Trouble Shooting =
2146 2146  )))
2147 2147  
2148 2148  (((
2149 2149  (((
2150 -== 6.1 Downlink doesn't work, how to solve it? ==
2144 +== 7.1 Downlink doesn't work, how to solve it? ==
2151 2151  
2152 2152  
2153 2153  )))
... ... @@ -2160,9 +2160,8 @@
2160 2160  (((
2161 2161  
2162 2162  
2157 +== 7.2 Have trouble to upload image. ==
2163 2163  
2164 -== 6.2 Have trouble to upload image. ==
2165 -
2166 2166  
2167 2167  )))
2168 2168  
... ... @@ -2173,9 +2173,8 @@
2173 2173  (((
2174 2174  
2175 2175  
2169 +== 7.3 Why I can't join TTN in US915 /AU915 bands? ==
2176 2176  
2177 -== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2178 -
2179 2179  
2180 2180  )))
2181 2181  
... ... @@ -2184,10 +2184,9 @@
2184 2184  )))
2185 2185  
2186 2186  
2179 += 8. Order Info =
2187 2187  
2188 -= 7. Order Info =
2189 2189  
2190 -
2191 2191  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
2192 2192  
2193 2193  (% style="color:#4f81bd" %)**XXX:**
... ... @@ -2203,7 +2203,7 @@
2203 2203  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2204 2204  
2205 2205  
2206 -= 8. Packing Info =
2197 += 9. Packing Info =
2207 2207  
2208 2208  
2209 2209  **Package Includes**:
... ... @@ -2221,7 +2221,7 @@
2221 2221  * Weight / pcs : 170g
2222 2222  
2223 2223  
2224 -= 9. Support =
2215 += 10. Support =
2225 2225  
2226 2226  
2227 2227  * (((
... ... @@ -2234,7 +2234,7 @@
2234 2234  
2235 2235  )))
2236 2236  
2237 -= 10. Reference​​​​​ =
2228 += 11. Reference​​​​​ =
2238 2238  
2239 2239  
2240 2240  * 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]]
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