Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.19 >
edited by Xiaoling
on 2022/06/10 08:40
To version < 77.80 >
edited by Xiaoling
on 2022/06/10 09:25
>
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -75,7 +75,6 @@
75 75  )))
76 76  )))
77 77  
78 -
79 79  (((
80 80  **Interface for Model: LT22222-L:**
81 81  )))
... ... @@ -99,7 +99,6 @@
99 99  Power Input 7~~ 24V DC. 
100 100  )))
101 101  
102 -
103 103  (((
104 104  **LoRa Spec:**
105 105  )))
... ... @@ -164,8 +164,6 @@
164 164  
165 165  )))
166 166  
167 -
168 -
169 169  == 1.3 Features ==
170 170  
171 171  * LoRaWAN Class A & Class C protocol
... ... @@ -176,8 +176,6 @@
176 176  * Firmware upgradable via program port
177 177  * Counting
178 178  
179 -
180 -
181 181  == 1.4  Applications ==
182 182  
183 183  * Smart Buildings & Home Automation
... ... @@ -187,8 +187,6 @@
187 187  * Smart Cities
188 188  * Smart Factory
189 189  
190 -
191 -
192 192  == 1.5 Hardware Variants ==
193 193  
194 194  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -202,8 +202,6 @@
202 202  * 1 x Counting Port
203 203  )))
204 204  
205 -
206 -
207 207  = 2. Power ON Device =
208 208  
209 209  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.
... ... @@ -285,8 +285,6 @@
285 285  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
286 286  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287 287  
288 -
289 -
290 290  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
291 291  
292 292  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -322,7 +322,6 @@
322 322  * [1] RO1 relay channel is close and the RO1 LED is ON.
323 323  * [0] RO2 relay channel is open and RO2 LED is OFF;
324 324  
325 -
326 326  **LT22222-L:**
327 327  
328 328  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -338,8 +338,6 @@
338 338  ** DO1 is high in case there is load between DO1 and V+.
339 339  ** DO1 LED is off in both case
340 340  
341 -
342 -
343 343  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
344 344  
345 345  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -503,6 +503,8 @@
503 503  )))
504 504  
505 505  (((
491 +
492 +
506 506  **To use this mode, please run:**
507 507  )))
508 508  
... ... @@ -529,6 +529,8 @@
529 529  )))
530 530  
531 531  (((
519 +
520 +
532 532  **Plus below command for AVI1 Counting:**
533 533  )))
534 534  
... ... @@ -569,6 +569,8 @@
569 569  [[image:image-20220523182334-9.png]]
570 570  
571 571  (((
561 +
562 +
572 572  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
573 573  )))
574 574  
... ... @@ -583,6 +583,8 @@
583 583  )))
584 584  
585 585  (((
577 +
578 +
586 586  **To use this mode, please run:**
587 587  )))
588 588  
... ... @@ -602,8 +602,6 @@
602 602  
603 603  (((
604 604  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
605 -
606 -
607 607  )))
608 608  
609 609  
... ... @@ -617,11 +617,13 @@
617 617  * **AT+MOD=1 ** **~-~->** The normal working mode
618 618  * **AT+ADDMOD6=1**   **~-~->** Enable trigger
619 619  
611 +
620 620  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
621 621  
622 622  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
623 623  1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
624 624  
617 +
625 625  **AT Command to set Trigger Condition**:
626 626  
627 627  (% style="color:#4f81bd" %)**Trigger base on voltage**:
... ... @@ -673,14 +673,17 @@
673 673  
674 674   Yy4 yy4: AC2 or AV2 high limit.
675 675  
669 +
676 676  **Example1**: AA 00 13 88 00 00 00 00 00 00
677 677  
678 678  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
679 679  
674 +
680 680  **Example2**: AA 02 01 00
681 681  
682 682  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
683 683  
679 +
684 684  (% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
685 685  
686 686  MOD6 Payload : total 11 bytes payload
... ... @@ -687,6 +687,7 @@
687 687  
688 688  [[image:image-20220524085923-1.png]]
689 689  
686 +
690 690  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
691 691  
692 692  [[image:image-20220524090106-2.png]]
... ... @@ -693,6 +693,7 @@
693 693  
694 694  * Each bits shows if the corresponding trigger has been configured.
695 695  
693 +
696 696  **Example:**
697 697  
698 698  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
... ... @@ -704,6 +704,7 @@
704 704  
705 705  * Each bits shows which status has been trigger on this uplink.
706 706  
705 +
707 707  **Example:**
708 708  
709 709  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
... ... @@ -715,6 +715,7 @@
715 715  
716 716  * Each bits shows which status has been trigger on this uplink.
717 717  
717 +
718 718  **Example:**
719 719  
720 720  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -777,6 +777,7 @@
777 777  
778 778  **Example: **AT+TDC=30000. Means set interval to 30 seconds
779 779  
780 +
780 780  * Downlink Payload (prefix 0x01):
781 781  
782 782  (% class="box infomessage" %)
... ... @@ -799,6 +799,7 @@
799 799  
800 800  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
801 801  
803 +
802 802  * Downlink Payload (prefix 0x0A):
803 803  
804 804  (% class="box infomessage" %)
... ... @@ -807,6 +807,7 @@
807 807  )))
808 808  
809 809  
812 +
810 810  ==== 3.4.2.3 Poll an uplink ====
811 811  
812 812  * AT Command:
... ... @@ -813,6 +813,7 @@
813 813  
814 814  There is no AT Command to poll uplink
815 815  
819 +
816 816  * Downlink Payload (prefix 0x08):
817 817  
818 818  (% class="box infomessage" %)
... ... @@ -823,6 +823,7 @@
823 823  **Example**: 0x08FF, ask device to send an Uplink
824 824  
825 825  
830 +
826 826  ==== 3.4.2.4 Enable Trigger Mode ====
827 827  
828 828  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -838,6 +838,7 @@
838 838  
839 839  0: Disable Trigger Mode
840 840  
846 +
841 841  * Downlink Payload (prefix 0x0A 06):
842 842  
843 843  (% class="box infomessage" %)
... ... @@ -846,6 +846,7 @@
846 846  )))
847 847  
848 848  
855 +
849 849  ==== 3.4.2.5 Poll trigger settings ====
850 850  
851 851  Poll trigger settings,
... ... @@ -854,6 +854,7 @@
854 854  
855 855  There is no AT Command for this feature.
856 856  
864 +
857 857  * Downlink Payload (prefix 0x AB 06):
858 858  
859 859  (% class="box infomessage" %)
... ... @@ -862,6 +862,7 @@
862 862  )))
863 863  
864 864  
873 +
865 865  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
866 866  
867 867  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -873,6 +873,7 @@
873 873  **Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
874 874  )))
875 875  
885 +
876 876  **Example:**
877 877  
878 878  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
... ... @@ -885,6 +885,7 @@
885 885  )))
886 886  
887 887  
898 +
888 888  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
889 889  
890 890  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -900,10 +900,12 @@
900 900  
901 901  b : delay timing.
902 902  
914 +
903 903  **Example:**
904 904  
905 905  AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
906 906  
919 +
907 907  * Downlink Payload (prefix 0x09 01 ):
908 908  
909 909  (% class="box infomessage" %)
... ... @@ -912,6 +912,7 @@
912 912  )))
913 913  
914 914  
928 +
915 915  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
916 916  
917 917  Set DI2 trigger.
... ... @@ -927,10 +927,12 @@
927 927  
928 928  b : delay timing.
929 929  
944 +
930 930  **Example:**
931 931  
932 932  AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
933 933  
949 +
934 934  * Downlink Payload (prefix 0x09 02 ):
935 935  
936 936  (% class="box infomessage" %)
... ... @@ -939,6 +939,7 @@
939 939  )))
940 940  
941 941  
958 +
942 942  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
943 943  
944 944  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -950,6 +950,7 @@
950 950  **AT+ACLIM. **
951 951  )))
952 952  
970 +
953 953  * Downlink Payload (prefix 0xAA 01 ):
954 954  
955 955  (% class="box infomessage" %)
... ... @@ -958,6 +958,7 @@
958 958  )))
959 959  
960 960  
979 +
961 961  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
962 962  
963 963  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -969,6 +969,7 @@
969 969  **AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
970 970  )))
971 971  
991 +
972 972  * Downlink Payload (prefix 0xAA 00 ):
973 973  
974 974  (% class="box infomessage" %)
... ... @@ -977,6 +977,7 @@
977 977  )))
978 978  
979 979  
1000 +
980 980  ==== 3.4.2.11 Trigger – Set minimum interval ====
981 981  
982 982  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -988,6 +988,7 @@
988 988  **AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.**
989 989  )))
990 990  
1012 +
991 991  * Downlink Payload (prefix 0xAC ):
992 992  
993 993  (% class="box infomessage" %)
... ... @@ -996,6 +996,7 @@
996 996  )))
997 997  
998 998  
1021 +
999 999  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1000 1000  
1001 1001  * AT Command:
... ... @@ -1002,6 +1002,7 @@
1002 1002  
1003 1003  There is no AT Command to control Digital Output
1004 1004  
1028 +
1005 1005  * Downlink Payload (prefix 0x02):
1006 1006  
1007 1007  (% class="box infomessage" %)
... ... @@ -1028,6 +1028,7 @@
1028 1028  )))
1029 1029  
1030 1030  
1055 +
1031 1031  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1032 1032  
1033 1033  * AT Command:
... ... @@ -1034,6 +1034,7 @@
1034 1034  
1035 1035  There is no AT Command to control Digital Output
1036 1036  
1062 +
1037 1037  * Downlink Payload (prefix 0xA9):
1038 1038  
1039 1039  (% class="box infomessage" %)
... ... @@ -1053,18 +1053,22 @@
1053 1053  
1054 1054  00: DO pins will change to an inverter state after timeout 
1055 1055  
1082 +
1056 1056  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1057 1057  
1058 1058  [[image:image-20220524093238-6.png]]
1059 1059  
1087 +
1060 1060  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1061 1061  
1062 1062  [[image:image-20220524093328-7.png]]
1063 1063  
1092 +
1064 1064  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1065 1065  
1066 1066  [[image:image-20220524093351-8.png]]
1067 1067  
1097 +
1068 1068  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1069 1069  
1070 1070   Latching time. Unit: ms
... ... @@ -1071,6 +1071,7 @@
1071 1071  
1072 1072  Device will upload a packet if downlink code executes successfully.
1073 1073  
1104 +
1074 1074  **Example payload:**
1075 1075  
1076 1076  **~1. A9 01 01 01 01 07 D0**
... ... @@ -1090,12 +1090,14 @@
1090 1090  DO1 pin no action, DO2 pin set low, DO3 pin set high, last 2 seconds, then DO1 pin no action, DO2 pin set high, DO3 pin set low
1091 1091  
1092 1092  
1093 -=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1094 1094  
1125 +==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1126 +
1095 1095  * AT Command:
1096 1096  
1097 1097  There is no AT Command to control Relay Output
1098 1098  
1131 +
1099 1099  * Downlink Payload (prefix 0x03):
1100 1100  
1101 1101  (% class="box infomessage" %)
... ... @@ -1118,6 +1118,7 @@
1118 1118  Device will upload a packet if downlink code executes successfully.
1119 1119  
1120 1120  
1154 +
1121 1121  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1122 1122  
1123 1123  * AT Command:
... ... @@ -1124,6 +1124,7 @@
1124 1124  
1125 1125  There is no AT Command to control Relay Output
1126 1126  
1161 +
1127 1127  * Downlink Payload (prefix 0x05):
1128 1128  
1129 1129  (% class="box infomessage" %)
... ... @@ -1141,14 +1141,17 @@
1141 1141  
1142 1142  00: Relays will change to an inverter state after timeout
1143 1143  
1179 +
1144 1144  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1145 1145  
1146 1146  [[image:image-20220524093831-10.png]]
1147 1147  
1184 +
1148 1148  (% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1149 1149  
1150 1150  Device will upload a packet if downlink code executes successfully.
1151 1151  
1189 +
1152 1152  **Example payload:**
1153 1153  
1154 1154  **~1. 05 01 11 07 D0**
... ... @@ -1168,6 +1168,7 @@
1168 1168  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1169 1169  
1170 1170  
1209 +
1171 1171  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1172 1172  
1173 1173  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
... ... @@ -1179,6 +1179,7 @@
1179 1179  **AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1180 1180  )))
1181 1181  
1221 +
1182 1182  * Downlink Payload (prefix 0xA5):
1183 1183  
1184 1184  (% class="box infomessage" %)
... ... @@ -1187,6 +1187,7 @@
1187 1187  )))
1188 1188  
1189 1189  
1230 +
1190 1190  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1191 1191  
1192 1192  * AT Command:
... ... @@ -1204,6 +1204,7 @@
1204 1204  
1205 1205  Bb cc dd ee: number to be set
1206 1206  
1248 +
1207 1207  * Downlink Payload (prefix 0xA8):
1208 1208  
1209 1209  (% class="box infomessage" %)
... ... @@ -1212,6 +1212,7 @@
1212 1212  )))
1213 1213  
1214 1214  
1257 +
1215 1215  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1216 1216  
1217 1217  Clear counting for counting mode
... ... @@ -1231,6 +1231,7 @@
1231 1231  )))
1232 1232  
1233 1233  
1277 +
1234 1234  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1235 1235  
1236 1236  * AT Command:
... ... @@ -1253,16 +1253,17 @@
1253 1253  
1254 1254  )))
1255 1255  
1300 +
1256 1256  == 3.5 Integrate with Mydevice ==
1257 1257  
1258 1258  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:
1259 1259  
1260 1260  (((
1261 -**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1306 +(% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
1262 1262  )))
1263 1263  
1264 1264  (((
1265 -**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:
1310 +(% 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:
1266 1266  )))
1267 1267  
1268 1268  [[image:1653356737703-362.png||height="232" width="732"]]
... ... @@ -1269,12 +1269,13 @@
1269 1269  
1270 1270  [[image:image-20220524094641-11.png||height="390" width="723"]]
1271 1271  
1317 +
1272 1272  [[image:image-20220524094641-12.png||height="402" width="718"]]
1273 1273  
1274 1274  
1275 -**Step 3**: Create an account or log in Mydevices.
1321 +(% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1276 1276  
1277 -**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1323 +(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1278 1278  
1279 1279  Search under The things network
1280 1280  
... ... @@ -1281,19 +1281,25 @@
1281 1281  [[image:1653356838789-523.png||height="337" width="740"]]
1282 1282  
1283 1283  
1330 +
1284 1284  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1285 1285  
1286 1286  [[image:image-20220524094909-1.png||height="335" width="729"]]
1287 1287  
1335 +
1288 1288  [[image:image-20220524094909-2.png||height="337" width="729"]]
1289 1289  
1338 +
1290 1290  [[image:image-20220524094909-3.png||height="338" width="727"]]
1291 1291  
1341 +
1292 1292  [[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1293 1293  
1344 +
1294 1294  [[image:image-20220524094909-5.png||height="341" width="734"]]
1295 1295  
1296 1296  
1348 +
1297 1297  == 3.6 Interface Detail ==
1298 1298  
1299 1299  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1303,6 +1303,7 @@
1303 1303  [[image:1653356991268-289.png]]
1304 1304  
1305 1305  
1358 +
1306 1306  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1307 1307  
1308 1308  (((
... ... @@ -1328,7 +1328,7 @@
1328 1328  )))
1329 1329  
1330 1330  (((
1331 -**Example1**: Connect to a Low active sensor.
1384 +(% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
1332 1332  )))
1333 1333  
1334 1334  (((
... ... @@ -1359,7 +1359,7 @@
1359 1359  )))
1360 1360  
1361 1361  (((
1362 -**Example2**: Connect to a High active sensor.
1415 +(% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
1363 1363  )))
1364 1364  
1365 1365  (((
... ... @@ -1390,7 +1390,7 @@
1390 1390  )))
1391 1391  
1392 1392  (((
1393 -**Example3**: Connect to a 220v high active sensor.
1446 +(% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
1394 1394  )))
1395 1395  
1396 1396  (((
... ... @@ -1417,6 +1417,7 @@
1417 1417  )))
1418 1418  
1419 1419  
1473 +
1420 1420  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1421 1421  
1422 1422  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1424,12 +1424,14 @@
1424 1424  [[image:1653357531600-905.png]]
1425 1425  
1426 1426  
1481 +
1427 1427  === 3.6.4 Analog Input Interface ===
1428 1428  
1429 1429  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:
1430 1430  
1431 -**AC2 = (IN2 voltage )/12**
1432 1432  
1487 +(% style="color:blue" %)**AC2 = (IN2 voltage )/12**
1488 +
1433 1433  [[image:1653357592296-182.png]]
1434 1434  
1435 1435  Example to connect a 4~~20mA sensor
... ... @@ -1436,22 +1436,24 @@
1436 1436  
1437 1437  We take the wind speed sensor as an example for reference only.
1438 1438  
1439 -Specifications of the wind speed sensor:
1440 1440  
1441 -Red:12~~24v
1496 +**Specifications of the wind speed sensor:**
1442 1442  
1443 -Yellow:4~~20mA
1498 +Red:  12~~24v
1444 1444  
1445 -Black:GND
1500 +Yellow:  4~~20mA
1446 1446  
1502 +Black:  GND
1447 1447  
1448 -Connection diagram:
1449 1449  
1505 +**Connection diagram:**
1506 +
1450 1450  [[image:1653357640609-758.png]]
1451 1451  
1452 1452  [[image:1653357648330-671.png||height="155" width="733"]]
1453 1453  
1454 1454  
1512 +
1455 1455  === 3.6.5 Relay Output ===
1456 1456  
1457 1457  (((
... ... @@ -1463,6 +1463,7 @@
1463 1463  [[image:image-20220524100215-10.png||height="382" width="723"]]
1464 1464  
1465 1465  
1524 +
1466 1466  == 3.7 LEDs Indicators ==
1467 1467  
1468 1468  [[image:image-20220524100748-11.png]]
... ... @@ -1476,6 +1476,7 @@
1476 1476  
1477 1477  [[image:1653358238933-385.png]]
1478 1478  
1538 +
1479 1479  (((
1480 1480  In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
1481 1481  )))
... ... @@ -1482,6 +1482,7 @@
1482 1482  
1483 1483  [[image:1653358355238-883.png]]
1484 1484  
1545 +
1485 1485  (((
1486 1486  More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1487 1487  )))
... ... @@ -1672,12 +1672,16 @@
1672 1672  
1673 1673  )))
1674 1674  
1736 +
1737 +
1675 1675  == 4.2 Common AT Command Sequence ==
1676 1676  
1677 1677  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1678 1678  
1679 1679  (((
1680 -If device has not joined network yet:
1743 +
1744 +
1745 +**If device has not joined network yet:**
1681 1681  )))
1682 1682  
1683 1683  (((
... ... @@ -1702,7 +1702,7 @@
1702 1702  
1703 1703  
1704 1704  (((
1705 -If device already joined network:
1770 +**If device already joined network:**
1706 1706  )))
1707 1707  
1708 1708  (((
... ... @@ -1715,10 +1715,14 @@
1715 1715  
1716 1716  )))
1717 1717  
1783 +
1784 +
1718 1718  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1719 1719  
1720 1720  (((
1721 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1788 +
1789 +
1790 +(% style="background-color:#dcdcdc" %)123456(%%)  Enter Password to have AT access.
1722 1722  )))
1723 1723  
1724 1724  (((
... ... @@ -1726,7 +1726,7 @@
1726 1726  )))
1727 1727  
1728 1728  (((
1729 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1798 +(% style="background-color:#dcdcdc" %) 123456(%%)  Enter Password to have AT access.
1730 1730  )))
1731 1731  
1732 1732  (((
... ... @@ -1734,39 +1734,41 @@
1734 1734  )))
1735 1735  
1736 1736  (((
1737 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1806 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)  Set to ABP mode
1738 1738  )))
1739 1739  
1740 1740  (((
1741 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1810 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%)  Set the Adaptive Data Rate Off
1742 1742  )))
1743 1743  
1744 1744  (((
1745 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1814 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1746 1746  )))
1747 1747  
1748 1748  (((
1749 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1818 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1750 1750  )))
1751 1751  
1752 1752  (((
1753 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1822 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1754 1754  )))
1755 1755  
1756 1756  (((
1757 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1826 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%)  Set RX2Frequency to 868.4Mhz (according to the result from server)
1758 1758  )))
1759 1759  
1760 1760  (((
1761 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1830 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1762 1762  )))
1763 1763  
1764 1764  (((
1765 -(% 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.
1834 +(% 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.
1766 1766  )))
1767 1767  
1768 1768  (((
1769 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1838 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1839 +
1840 +
1770 1770  )))
1771 1771  
1772 1772  (((
... ... @@ -1788,6 +1788,7 @@
1788 1788  
1789 1789  )))
1790 1790  
1862 +
1791 1791  === 4.2.3 Change to Class A ===
1792 1792  
1793 1793  If sensor JOINED
... ... @@ -1799,19 +1799,25 @@
1799 1799  
1800 1800  == 5.1 How to upgrade the image? ==
1801 1801  
1874 +
1802 1802  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1803 1803  
1804 1804  * Support new features
1805 1805  * For bug fix
1806 1806  * Change LoRaWAN bands.
1880 +
1807 1807  Below shows the hardware connection for how to upload an image to the LT:
1808 -* [[image:1653359603330-121.png]]
1809 1809  
1883 +[[image:1653359603330-121.png]]
1884 +
1885 +
1810 1810  (((
1811 -**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1812 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1813 -**Step3: **Open flashloader; choose the correct COM port to update.
1814 -**For LT-22222-L**:
1887 +(% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1888 +(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1889 +(% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1890 +
1891 +
1892 +(% style="color:blue" %)**For LT-22222-L**(%%):
1815 1815  Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1816 1816  )))
1817 1817  
... ... @@ -1821,6 +1821,7 @@
1821 1821  
1822 1822  [[image:image-20220524104033-15.png]]
1823 1823  
1902 +
1824 1824  (% 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:
1825 1825  
1826 1826  [[image:1653360054704-518.png||height="186" width="745"]]
... ... @@ -1828,6 +1828,8 @@
1828 1828  
1829 1829  (((
1830 1830  (((
1910 +
1911 +
1831 1831  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1832 1832  )))
1833 1833  )))
... ... @@ -1834,11 +1834,11 @@
1834 1834  
1835 1835  (((
1836 1836  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1837 -
1838 -
1839 1839  )))
1840 1840  
1841 1841  (((
1921 +
1922 +
1842 1842  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1843 1843  )))
1844 1844  
... ... @@ -1851,6 +1851,8 @@
1851 1851  (((
1852 1852  (((
1853 1853  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1935 +
1936 +
1854 1854  )))
1855 1855  )))
1856 1856  
... ... @@ -1866,23 +1866,25 @@
1866 1866  (% 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.
1867 1867  )))
1868 1868  
1952 +
1869 1869  (((
1870 1870  (% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1871 1871  )))
1872 1872  
1873 1873  (((
1874 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1875 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1876 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1877 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1878 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1879 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1880 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1881 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1882 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1883 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1958 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1959 +(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
1960 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1961 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
1962 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
1963 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1964 +(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
1965 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1966 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
1967 +(% style="background-color:#dcdcdc" %)ATZ        (%%) Reset MCU
1884 1884  )))
1885 1885  
1970 +
1886 1886  (((
1887 1887  As shown in below:
1888 1888  )))
... ... @@ -1899,11 +1899,11 @@
1899 1899  == 5.5 Can i use point to point communication for LT-22222-L? ==
1900 1900  
1901 1901  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1902 -
1903 -
1904 1904  )))
1905 1905  
1906 1906  (((
1990 +
1991 +
1907 1907  = 6. Trouble Shooting =
1908 1908  )))
1909 1909  
... ... @@ -1915,11 +1915,11 @@
1915 1915  
1916 1916  (((
1917 1917  Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1918 -
1919 -
1920 1920  )))
1921 1921  
1922 1922  (((
2006 +
2007 +
1923 1923  == 6.2 Have trouble to upload image. ==
1924 1924  )))
1925 1925  
... ... @@ -1929,9 +1929,7 @@
1929 1929  
1930 1930  (((
1931 1931  
1932 -)))
1933 1933  
1934 -(((
1935 1935  == 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1936 1936  )))
1937 1937  
... ... @@ -1939,147 +1939,55 @@
1939 1939  It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1940 1940  )))
1941 1941  
1942 -(((
1943 -
1944 -)))
1945 1945  
1946 -(((
2026 +
1947 1947  = 7. Order Info =
1948 -)))
1949 1949  
1950 -(((
1951 -(((
2029 +
1952 1952  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1953 -)))
1954 -)))
1955 1955  
1956 -(((
1957 -(((
2032 +
1958 1958  (% style="color:#4f81bd" %)**XXX:**
1959 -)))
1960 -)))
1961 1961  
1962 -(((
1963 -* (((
1964 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1965 -)))
1966 -)))
2035 +* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
2036 +* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
2037 +* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
2038 +* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
2039 +* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
2040 +* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
2041 +* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
2042 +* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
2043 +* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1967 1967  
1968 -(((
1969 -* (((
1970 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1971 -)))
1972 -)))
1973 -
1974 -(((
1975 -* (((
1976 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1977 -)))
1978 -)))
1979 -
1980 -(((
1981 -* (((
1982 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1983 -)))
1984 -)))
1985 -
1986 -(((
1987 -* (((
1988 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1989 -)))
1990 -)))
1991 -
1992 -(((
1993 -* (((
1994 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1995 -)))
1996 -)))
1997 -
1998 -(((
1999 -* (((
2000 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
2001 -)))
2002 -)))
2003 -
2004 -(((
2005 -* (((
2006 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
2007 -)))
2008 -)))
2009 -
2010 -(((
2011 -* (((
2012 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2013 -
2014 -
2015 -)))
2016 -
2017 2017  = 8. Packing Info =
2018 -)))
2019 2019  
2020 -(((
2021 -(((
2047 +
2022 2022  **Package Includes**:
2023 -)))
2024 -)))
2025 2025  
2026 -(((
2027 -(((
2028 2028  * LT-22222-L I/O Controller x 1
2029 2029  * Stick Antenna for LoRa RF part x 1
2030 2030  * Bracket for controller x1
2031 2031  * Program cable x 1
2032 -)))
2033 -)))
2034 2034  
2035 -(((
2036 -(((
2037 2037  **Dimension and weight**:
2038 -)))
2039 -)))
2040 2040  
2041 -(((
2042 -(((
2043 2043  * Device Size: 13.5 x 7 x 3 cm
2044 2044  * Device Weight: 105g
2045 2045  * Package Size / pcs : 14.5 x 8 x 5 cm
2046 2046  * Weight / pcs : 170g
2047 2047  
2048 -
2049 -)))
2050 -)))
2051 -
2052 -(((
2053 2053  = 9. Support =
2054 -)))
2055 2055  
2056 2056  * (((
2057 -(((
2058 2058  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.
2059 2059  )))
2060 -)))
2061 2061  * (((
2062 -(((
2063 -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
2068 +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]]
2064 2064  )))
2065 -)))
2066 2066  
2067 -(((
2068 -(((
2069 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2070 -
2071 -
2072 -)))
2073 -
2074 -(((
2075 2075  = 10. Reference​​​​​ =
2076 2076  
2077 -* Product Page:
2078 -
2079 -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]]
2080 -
2073 +* 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]]
2081 2081  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
2082 2082  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2083 2083  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2084 -)))
2085 -)))

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