Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 75.8 >
edited by Xiaoling
on 2022/06/01 17:28
To version < 77.13 >
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
... ... @@ -193,6 +193,8 @@
193 193  * 1 x Counting Port
194 194  )))
195 195  
205 +
206 +
196 196  = 2. Power ON Device =
197 197  
198 198  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.
... ... @@ -204,6 +204,7 @@
204 204  [[image:1653297104069-180.png]]
205 205  
206 206  
218 +
207 207  = 3. Operation Mode =
208 208  
209 209  == 3.1 How it works? ==
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218 218  
219 219  )))
220 220  
233 +
234 +
221 221  == 3.2 Example to join LoRaWAN network ==
222 222  
223 223  (((
... ... @@ -259,6 +259,7 @@
259 259  [[image:1653298044601-602.png||height="405" width="709"]]
260 260  
261 261  
276 +
262 262  == 3.3 Uplink Payload ==
263 263  
264 264  There are five working modes + one interrupt mode on LT for different type application:
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270 270  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
271 271  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
272 272  
288 +
289 +
273 273  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
274 274  
275 275  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -305,6 +305,7 @@
305 305  * [1] RO1 relay channel is close and the RO1 LED is ON.
306 306  * [0] RO2 relay channel is open and RO2 LED is OFF;
307 307  
325 +
308 308  **LT22222-L:**
309 309  
310 310  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -320,6 +320,8 @@
320 320  ** DO1 is high in case there is load between DO1 and V+.
321 321  ** DO1 LED is off in both case
322 322  
341 +
342 +
323 323  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
324 324  
325 325  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -413,6 +413,7 @@
413 413  )))
414 414  
415 415  
436 +
416 416  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
417 417  
418 418  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -608,6 +608,7 @@
608 608  
609 609  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
610 610  
632 +
611 611  (% style="color:#4f81bd" %)**Trigger base on current**:
612 612  
613 613  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -616,6 +616,7 @@
616 616  
617 617  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
618 618  
641 +
619 619  (% style="color:#4f81bd" %)**Trigger base on DI status**:
620 620  
621 621  DI status trigger Flag.
... ... @@ -719,7 +719,7 @@
719 719  There are two kinds of Commands:
720 720  )))
721 721  
722 -* (% 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
745 +* (% 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]]
723 723  
724 724  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
725 725  
... ... @@ -790,7 +790,7 @@
790 790  
791 791  ==== 3.4.2.4 Enable Trigger Mode ====
792 792  
793 -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]]
816 +Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
794 794  
795 795  * AT Command:
796 796  
... ... @@ -906,7 +906,7 @@
906 906  
907 907  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
908 908  
909 -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]]
932 +Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
910 910  
911 911  * AT Command:
912 912  
... ... @@ -919,19 +919,19 @@
919 919  
920 920  (% class="box infomessage" %)
921 921  (((
922 -**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]]**
945 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
923 923  )))
924 924  
925 925  
926 926  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
927 927  
928 -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]]
951 +Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
929 929  
930 930  * AT Command:
931 931  
932 932  (% class="box infomessage" %)
933 933  (((
934 -**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]]**
957 +**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
935 935  )))
936 936  
937 937  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -938,7 +938,7 @@
938 938  
939 939  (% class="box infomessage" %)
940 940  (((
941 -**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]] **
964 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
942 942  )))
943 943  
944 944  
... ... @@ -1135,13 +1135,13 @@
1135 1135  
1136 1136  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1137 1137  
1138 -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]]
1161 +When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1139 1139  
1140 1140  * AT Command:
1141 1141  
1142 1142  (% class="box infomessage" %)
1143 1143  (((
1144 -**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]]**
1167 +**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1145 1145  )))
1146 1146  
1147 1147  * Downlink Payload (prefix 0xA5):
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1236 1236  
1237 1237  [[image:image-20220524094641-12.png||height="402" width="718"]]
1238 1238  
1262 +
1239 1239  **Step 3**: Create an account or log in Mydevices.
1240 1240  
1241 1241  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1859,6 +1859,11 @@
1859 1859  (((
1860 1860  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.
1861 1861  
1886 +
1887 +== 5.5 Can i use point to point communication for LT-22222-L? ==
1888 +
1889 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1890 +
1862 1862  
1863 1863  )))
1864 1864  

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