Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 75.11 >
edited by Xiaoling
on 2022/06/01 17:29
To version < 77.11 >
edited by Xiaoling
on 2022/06/10 08:39
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... ... @@ -11,6 +11,9 @@
11 11  
12 12  
13 13  
14 +
15 +
16 +
14 14  = 1.Introduction =
15 15  
16 16  == 1.1 What is LT Series I/O Controller ==
... ... @@ -48,6 +48,8 @@
48 48  == 1.2  Specifications ==
49 49  
50 50  (((
54 +
55 +
51 51  **Hardware System:**
52 52  )))
53 53  
... ... @@ -70,6 +70,7 @@
70 70  )))
71 71  )))
72 72  
78 +
73 73  (((
74 74  **Interface for Model: LT22222-L:**
75 75  )))
... ... @@ -93,6 +93,7 @@
93 93  Power Input 7~~ 24V DC. 
94 94  )))
95 95  
102 +
96 96  (((
97 97  **LoRa Spec:**
98 98  )))
... ... @@ -157,6 +157,8 @@
157 157  
158 158  )))
159 159  
167 +
168 +
160 160  == 1.3 Features ==
161 161  
162 162  * LoRaWAN Class A & Class C protocol
... ... @@ -206,6 +206,7 @@
206 206  [[image:1653297104069-180.png]]
207 207  
208 208  
218 +
209 209  = 3. Operation Mode =
210 210  
211 211  == 3.1 How it works? ==
... ... @@ -220,6 +220,8 @@
220 220  
221 221  )))
222 222  
233 +
234 +
223 223  == 3.2 Example to join LoRaWAN network ==
224 224  
225 225  (((
... ... @@ -261,6 +261,7 @@
261 261  [[image:1653298044601-602.png||height="405" width="709"]]
262 262  
263 263  
276 +
264 264  == 3.3 Uplink Payload ==
265 265  
266 266  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -309,6 +309,7 @@
309 309  * [1] RO1 relay channel is close and the RO1 LED is ON.
310 310  * [0] RO2 relay channel is open and RO2 LED is OFF;
311 311  
325 +
312 312  **LT22222-L:**
313 313  
314 314  * [1] DI2 channel is high input and DI2 LED is ON;
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324 324  ** DO1 is high in case there is load between DO1 and V+.
325 325  ** DO1 LED is off in both case
326 326  
327 -
328 -
329 329  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
330 330  
331 331  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -614,6 +614,7 @@
614 614  
615 615  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
616 616  
629 +
617 617  (% style="color:#4f81bd" %)**Trigger base on current**:
618 618  
619 619  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -622,6 +622,7 @@
622 622  
623 623  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
624 624  
638 +
625 625  (% style="color:#4f81bd" %)**Trigger base on DI status**:
626 626  
627 627  DI status trigger Flag.
... ... @@ -725,7 +725,7 @@
725 725  There are two kinds of Commands:
726 726  )))
727 727  
728 -* (% 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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
742 +* (% 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]]
729 729  
730 730  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
731 731  
... ... @@ -796,7 +796,7 @@
796 796  
797 797  ==== 3.4.2.4 Enable Trigger Mode ====
798 798  
799 -Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
813 +Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
800 800  
801 801  * AT Command:
802 802  
... ... @@ -912,7 +912,7 @@
912 912  
913 913  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
914 914  
915 -Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
929 +Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
916 916  
917 917  * AT Command:
918 918  
... ... @@ -925,19 +925,19 @@
925 925  
926 926  (% class="box infomessage" %)
927 927  (((
928 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
942 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
929 929  )))
930 930  
931 931  
932 932  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
933 933  
934 -Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
948 +Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
935 935  
936 936  * AT Command:
937 937  
938 938  (% class="box infomessage" %)
939 939  (((
940 -**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
954 +**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
941 941  )))
942 942  
943 943  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -944,7 +944,7 @@
944 944  
945 945  (% class="box infomessage" %)
946 946  (((
947 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
961 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
948 948  )))
949 949  
950 950  
... ... @@ -1141,13 +1141,13 @@
1141 1141  
1142 1142  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1143 1143  
1144 -When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1158 +When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1145 1145  
1146 1146  * AT Command:
1147 1147  
1148 1148  (% class="box infomessage" %)
1149 1149  (((
1150 -**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1164 +**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1151 1151  )))
1152 1152  
1153 1153  * Downlink Payload (prefix 0xA5):
... ... @@ -1242,6 +1242,7 @@
1242 1242  
1243 1243  [[image:image-20220524094641-12.png||height="402" width="718"]]
1244 1244  
1259 +
1245 1245  **Step 3**: Create an account or log in Mydevices.
1246 1246  
1247 1247  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1865,6 +1865,11 @@
1865 1865  (((
1866 1866  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.
1867 1867  
1883 +
1884 +== 5.5 Can i use point to point communication for LT-22222-L? ==
1885 +
1886 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1887 +
1868 1868  
1869 1869  )))
1870 1870  

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