Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.20 >
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" %)
... ... @@ -814,6 +814,7 @@
814 814  
815 815  There is no AT Command to poll uplink
816 816  
819 +
817 817  * Downlink Payload (prefix 0x08):
818 818  
819 819  (% class="box infomessage" %)
... ... @@ -824,6 +824,7 @@
824 824  **Example**: 0x08FF, ask device to send an Uplink
825 825  
826 826  
830 +
827 827  ==== 3.4.2.4 Enable Trigger Mode ====
828 828  
829 829  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -839,6 +839,7 @@
839 839  
840 840  0: Disable Trigger Mode
841 841  
846 +
842 842  * Downlink Payload (prefix 0x0A 06):
843 843  
844 844  (% class="box infomessage" %)
... ... @@ -847,6 +847,7 @@
847 847  )))
848 848  
849 849  
855 +
850 850  ==== 3.4.2.5 Poll trigger settings ====
851 851  
852 852  Poll trigger settings,
... ... @@ -855,6 +855,7 @@
855 855  
856 856  There is no AT Command for this feature.
857 857  
864 +
858 858  * Downlink Payload (prefix 0x AB 06):
859 859  
860 860  (% class="box infomessage" %)
... ... @@ -863,6 +863,7 @@
863 863  )))
864 864  
865 865  
873 +
866 866  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
867 867  
868 868  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -874,6 +874,7 @@
874 874  **Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
875 875  )))
876 876  
885 +
877 877  **Example:**
878 878  
879 879  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
... ... @@ -886,6 +886,7 @@
886 886  )))
887 887  
888 888  
898 +
889 889  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
890 890  
891 891  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -901,10 +901,12 @@
901 901  
902 902  b : delay timing.
903 903  
914 +
904 904  **Example:**
905 905  
906 906  AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
907 907  
919 +
908 908  * Downlink Payload (prefix 0x09 01 ):
909 909  
910 910  (% class="box infomessage" %)
... ... @@ -913,6 +913,7 @@
913 913  )))
914 914  
915 915  
928 +
916 916  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
917 917  
918 918  Set DI2 trigger.
... ... @@ -928,10 +928,12 @@
928 928  
929 929  b : delay timing.
930 930  
944 +
931 931  **Example:**
932 932  
933 933  AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
934 934  
949 +
935 935  * Downlink Payload (prefix 0x09 02 ):
936 936  
937 937  (% class="box infomessage" %)
... ... @@ -940,6 +940,7 @@
940 940  )))
941 941  
942 942  
958 +
943 943  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
944 944  
945 945  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -951,6 +951,7 @@
951 951  **AT+ACLIM. **
952 952  )))
953 953  
970 +
954 954  * Downlink Payload (prefix 0xAA 01 ):
955 955  
956 956  (% class="box infomessage" %)
... ... @@ -959,6 +959,7 @@
959 959  )))
960 960  
961 961  
979 +
962 962  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
963 963  
964 964  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -970,6 +970,7 @@
970 970  **AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
971 971  )))
972 972  
991 +
973 973  * Downlink Payload (prefix 0xAA 00 ):
974 974  
975 975  (% class="box infomessage" %)
... ... @@ -978,6 +978,7 @@
978 978  )))
979 979  
980 980  
1000 +
981 981  ==== 3.4.2.11 Trigger – Set minimum interval ====
982 982  
983 983  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -989,6 +989,7 @@
989 989  **AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.**
990 990  )))
991 991  
1012 +
992 992  * Downlink Payload (prefix 0xAC ):
993 993  
994 994  (% class="box infomessage" %)
... ... @@ -997,6 +997,7 @@
997 997  )))
998 998  
999 999  
1021 +
1000 1000  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1001 1001  
1002 1002  * AT Command:
... ... @@ -1003,6 +1003,7 @@
1003 1003  
1004 1004  There is no AT Command to control Digital Output
1005 1005  
1028 +
1006 1006  * Downlink Payload (prefix 0x02):
1007 1007  
1008 1008  (% class="box infomessage" %)
... ... @@ -1029,6 +1029,7 @@
1029 1029  )))
1030 1030  
1031 1031  
1055 +
1032 1032  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1033 1033  
1034 1034  * AT Command:
... ... @@ -1035,6 +1035,7 @@
1035 1035  
1036 1036  There is no AT Command to control Digital Output
1037 1037  
1062 +
1038 1038  * Downlink Payload (prefix 0xA9):
1039 1039  
1040 1040  (% class="box infomessage" %)
... ... @@ -1054,18 +1054,22 @@
1054 1054  
1055 1055  00: DO pins will change to an inverter state after timeout 
1056 1056  
1082 +
1057 1057  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1058 1058  
1059 1059  [[image:image-20220524093238-6.png]]
1060 1060  
1087 +
1061 1061  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1062 1062  
1063 1063  [[image:image-20220524093328-7.png]]
1064 1064  
1092 +
1065 1065  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1066 1066  
1067 1067  [[image:image-20220524093351-8.png]]
1068 1068  
1097 +
1069 1069  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1070 1070  
1071 1071   Latching time. Unit: ms
... ... @@ -1072,6 +1072,7 @@
1072 1072  
1073 1073  Device will upload a packet if downlink code executes successfully.
1074 1074  
1104 +
1075 1075  **Example payload:**
1076 1076  
1077 1077  **~1. A9 01 01 01 01 07 D0**
... ... @@ -1091,12 +1091,14 @@
1091 1091  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
1092 1092  
1093 1093  
1094 -=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1095 1095  
1125 +==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1126 +
1096 1096  * AT Command:
1097 1097  
1098 1098  There is no AT Command to control Relay Output
1099 1099  
1131 +
1100 1100  * Downlink Payload (prefix 0x03):
1101 1101  
1102 1102  (% class="box infomessage" %)
... ... @@ -1119,6 +1119,7 @@
1119 1119  Device will upload a packet if downlink code executes successfully.
1120 1120  
1121 1121  
1154 +
1122 1122  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1123 1123  
1124 1124  * AT Command:
... ... @@ -1125,6 +1125,7 @@
1125 1125  
1126 1126  There is no AT Command to control Relay Output
1127 1127  
1161 +
1128 1128  * Downlink Payload (prefix 0x05):
1129 1129  
1130 1130  (% class="box infomessage" %)
... ... @@ -1142,14 +1142,17 @@
1142 1142  
1143 1143  00: Relays will change to an inverter state after timeout
1144 1144  
1179 +
1145 1145  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1146 1146  
1147 1147  [[image:image-20220524093831-10.png]]
1148 1148  
1184 +
1149 1149  (% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1150 1150  
1151 1151  Device will upload a packet if downlink code executes successfully.
1152 1152  
1189 +
1153 1153  **Example payload:**
1154 1154  
1155 1155  **~1. 05 01 11 07 D0**
... ... @@ -1169,6 +1169,7 @@
1169 1169  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1170 1170  
1171 1171  
1209 +
1172 1172  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1173 1173  
1174 1174  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
... ... @@ -1180,6 +1180,7 @@
1180 1180  **AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1181 1181  )))
1182 1182  
1221 +
1183 1183  * Downlink Payload (prefix 0xA5):
1184 1184  
1185 1185  (% class="box infomessage" %)
... ... @@ -1188,6 +1188,7 @@
1188 1188  )))
1189 1189  
1190 1190  
1230 +
1191 1191  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1192 1192  
1193 1193  * AT Command:
... ... @@ -1205,6 +1205,7 @@
1205 1205  
1206 1206  Bb cc dd ee: number to be set
1207 1207  
1248 +
1208 1208  * Downlink Payload (prefix 0xA8):
1209 1209  
1210 1210  (% class="box infomessage" %)
... ... @@ -1213,6 +1213,7 @@
1213 1213  )))
1214 1214  
1215 1215  
1257 +
1216 1216  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1217 1217  
1218 1218  Clear counting for counting mode
... ... @@ -1232,6 +1232,7 @@
1232 1232  )))
1233 1233  
1234 1234  
1277 +
1235 1235  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1236 1236  
1237 1237  * AT Command:
... ... @@ -1254,16 +1254,17 @@
1254 1254  
1255 1255  )))
1256 1256  
1300 +
1257 1257  == 3.5 Integrate with Mydevice ==
1258 1258  
1259 1259  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:
1260 1260  
1261 1261  (((
1262 -**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.
1263 1263  )))
1264 1264  
1265 1265  (((
1266 -**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:
1267 1267  )))
1268 1268  
1269 1269  [[image:1653356737703-362.png||height="232" width="732"]]
... ... @@ -1270,12 +1270,13 @@
1270 1270  
1271 1271  [[image:image-20220524094641-11.png||height="390" width="723"]]
1272 1272  
1317 +
1273 1273  [[image:image-20220524094641-12.png||height="402" width="718"]]
1274 1274  
1275 1275  
1276 -**Step 3**: Create an account or log in Mydevices.
1321 +(% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1277 1277  
1278 -**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" %)
1279 1279  
1280 1280  Search under The things network
1281 1281  
... ... @@ -1282,19 +1282,25 @@
1282 1282  [[image:1653356838789-523.png||height="337" width="740"]]
1283 1283  
1284 1284  
1330 +
1285 1285  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1286 1286  
1287 1287  [[image:image-20220524094909-1.png||height="335" width="729"]]
1288 1288  
1335 +
1289 1289  [[image:image-20220524094909-2.png||height="337" width="729"]]
1290 1290  
1338 +
1291 1291  [[image:image-20220524094909-3.png||height="338" width="727"]]
1292 1292  
1341 +
1293 1293  [[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1294 1294  
1344 +
1295 1295  [[image:image-20220524094909-5.png||height="341" width="734"]]
1296 1296  
1297 1297  
1348 +
1298 1298  == 3.6 Interface Detail ==
1299 1299  
1300 1300  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1304,6 +1304,7 @@
1304 1304  [[image:1653356991268-289.png]]
1305 1305  
1306 1306  
1358 +
1307 1307  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1308 1308  
1309 1309  (((
... ... @@ -1329,7 +1329,7 @@
1329 1329  )))
1330 1330  
1331 1331  (((
1332 -**Example1**: Connect to a Low active sensor.
1384 +(% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
1333 1333  )))
1334 1334  
1335 1335  (((
... ... @@ -1360,7 +1360,7 @@
1360 1360  )))
1361 1361  
1362 1362  (((
1363 -**Example2**: Connect to a High active sensor.
1415 +(% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
1364 1364  )))
1365 1365  
1366 1366  (((
... ... @@ -1391,7 +1391,7 @@
1391 1391  )))
1392 1392  
1393 1393  (((
1394 -**Example3**: Connect to a 220v high active sensor.
1446 +(% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
1395 1395  )))
1396 1396  
1397 1397  (((
... ... @@ -1418,6 +1418,7 @@
1418 1418  )))
1419 1419  
1420 1420  
1473 +
1421 1421  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1422 1422  
1423 1423  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1425,12 +1425,14 @@
1425 1425  [[image:1653357531600-905.png]]
1426 1426  
1427 1427  
1481 +
1428 1428  === 3.6.4 Analog Input Interface ===
1429 1429  
1430 1430  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:
1431 1431  
1432 -**AC2 = (IN2 voltage )/12**
1433 1433  
1487 +(% style="color:blue" %)**AC2 = (IN2 voltage )/12**
1488 +
1434 1434  [[image:1653357592296-182.png]]
1435 1435  
1436 1436  Example to connect a 4~~20mA sensor
... ... @@ -1437,22 +1437,24 @@
1437 1437  
1438 1438  We take the wind speed sensor as an example for reference only.
1439 1439  
1440 -Specifications of the wind speed sensor:
1441 1441  
1442 -Red:12~~24v
1496 +**Specifications of the wind speed sensor:**
1443 1443  
1444 -Yellow:4~~20mA
1498 +Red:  12~~24v
1445 1445  
1446 -Black:GND
1500 +Yellow:  4~~20mA
1447 1447  
1502 +Black:  GND
1448 1448  
1449 -Connection diagram:
1450 1450  
1505 +**Connection diagram:**
1506 +
1451 1451  [[image:1653357640609-758.png]]
1452 1452  
1453 1453  [[image:1653357648330-671.png||height="155" width="733"]]
1454 1454  
1455 1455  
1512 +
1456 1456  === 3.6.5 Relay Output ===
1457 1457  
1458 1458  (((
... ... @@ -1464,6 +1464,7 @@
1464 1464  [[image:image-20220524100215-10.png||height="382" width="723"]]
1465 1465  
1466 1466  
1524 +
1467 1467  == 3.7 LEDs Indicators ==
1468 1468  
1469 1469  [[image:image-20220524100748-11.png]]
... ... @@ -1477,6 +1477,7 @@
1477 1477  
1478 1478  [[image:1653358238933-385.png]]
1479 1479  
1538 +
1480 1480  (((
1481 1481  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:
1482 1482  )))
... ... @@ -1483,6 +1483,7 @@
1483 1483  
1484 1484  [[image:1653358355238-883.png]]
1485 1485  
1545 +
1486 1486  (((
1487 1487  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/]]
1488 1488  )))
... ... @@ -1673,12 +1673,16 @@
1673 1673  
1674 1674  )))
1675 1675  
1736 +
1737 +
1676 1676  == 4.2 Common AT Command Sequence ==
1677 1677  
1678 1678  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1679 1679  
1680 1680  (((
1681 -If device has not joined network yet:
1743 +
1744 +
1745 +**If device has not joined network yet:**
1682 1682  )))
1683 1683  
1684 1684  (((
... ... @@ -1703,7 +1703,7 @@
1703 1703  
1704 1704  
1705 1705  (((
1706 -If device already joined network:
1770 +**If device already joined network:**
1707 1707  )))
1708 1708  
1709 1709  (((
... ... @@ -1716,10 +1716,14 @@
1716 1716  
1717 1717  )))
1718 1718  
1783 +
1784 +
1719 1719  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1720 1720  
1721 1721  (((
1722 -(% 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.
1723 1723  )))
1724 1724  
1725 1725  (((
... ... @@ -1727,7 +1727,7 @@
1727 1727  )))
1728 1728  
1729 1729  (((
1730 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1798 +(% style="background-color:#dcdcdc" %) 123456(%%)  Enter Password to have AT access.
1731 1731  )))
1732 1732  
1733 1733  (((
... ... @@ -1735,39 +1735,41 @@
1735 1735  )))
1736 1736  
1737 1737  (((
1738 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1806 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)  Set to ABP mode
1739 1739  )))
1740 1740  
1741 1741  (((
1742 -(% 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
1743 1743  )))
1744 1744  
1745 1745  (((
1746 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1814 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1747 1747  )))
1748 1748  
1749 1749  (((
1750 -(% 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
1751 1751  )))
1752 1752  
1753 1753  (((
1754 -(% 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
1755 1755  )))
1756 1756  
1757 1757  (((
1758 -(% 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)
1759 1759  )))
1760 1760  
1761 1761  (((
1762 -(% 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
1763 1763  )))
1764 1764  
1765 1765  (((
1766 -(% 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.
1767 1767  )))
1768 1768  
1769 1769  (((
1770 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1838 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1839 +
1840 +
1771 1771  )))
1772 1772  
1773 1773  (((
... ... @@ -1789,6 +1789,7 @@
1789 1789  
1790 1790  )))
1791 1791  
1862 +
1792 1792  === 4.2.3 Change to Class A ===
1793 1793  
1794 1794  If sensor JOINED
... ... @@ -1800,19 +1800,25 @@
1800 1800  
1801 1801  == 5.1 How to upgrade the image? ==
1802 1802  
1874 +
1803 1803  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1804 1804  
1805 1805  * Support new features
1806 1806  * For bug fix
1807 1807  * Change LoRaWAN bands.
1880 +
1808 1808  Below shows the hardware connection for how to upload an image to the LT:
1809 -* [[image:1653359603330-121.png]]
1810 1810  
1883 +[[image:1653359603330-121.png]]
1884 +
1885 +
1811 1811  (((
1812 -**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]].
1813 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1814 -**Step3: **Open flashloader; choose the correct COM port to update.
1815 -**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**(%%):
1816 1816  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.
1817 1817  )))
1818 1818  
... ... @@ -1822,6 +1822,7 @@
1822 1822  
1823 1823  [[image:image-20220524104033-15.png]]
1824 1824  
1902 +
1825 1825  (% 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:
1826 1826  
1827 1827  [[image:1653360054704-518.png||height="186" width="745"]]
... ... @@ -1829,6 +1829,8 @@
1829 1829  
1830 1830  (((
1831 1831  (((
1910 +
1911 +
1832 1832  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1833 1833  )))
1834 1834  )))
... ... @@ -1835,11 +1835,11 @@
1835 1835  
1836 1836  (((
1837 1837  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1838 -
1839 -
1840 1840  )))
1841 1841  
1842 1842  (((
1921 +
1922 +
1843 1843  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1844 1844  )))
1845 1845  
... ... @@ -1852,6 +1852,8 @@
1852 1852  (((
1853 1853  (((
1854 1854  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1935 +
1936 +
1855 1855  )))
1856 1856  )))
1857 1857  
... ... @@ -1867,23 +1867,25 @@
1867 1867  (% 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.
1868 1868  )))
1869 1869  
1952 +
1870 1870  (((
1871 1871  (% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1872 1872  )))
1873 1873  
1874 1874  (((
1875 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1876 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1877 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1878 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1879 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1880 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1881 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1882 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1883 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1884 -(% 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
1885 1885  )))
1886 1886  
1970 +
1887 1887  (((
1888 1888  As shown in below:
1889 1889  )))
... ... @@ -1900,11 +1900,11 @@
1900 1900  == 5.5 Can i use point to point communication for LT-22222-L? ==
1901 1901  
1902 1902  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1903 -
1904 -
1905 1905  )))
1906 1906  
1907 1907  (((
1990 +
1991 +
1908 1908  = 6. Trouble Shooting =
1909 1909  )))
1910 1910  
... ... @@ -1916,11 +1916,11 @@
1916 1916  
1917 1917  (((
1918 1918  Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1919 -
1920 -
1921 1921  )))
1922 1922  
1923 1923  (((
2006 +
2007 +
1924 1924  == 6.2 Have trouble to upload image. ==
1925 1925  )))
1926 1926  
... ... @@ -1930,9 +1930,7 @@
1930 1930  
1931 1931  (((
1932 1932  
1933 -)))
1934 1934  
1935 -(((
1936 1936  == 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1937 1937  )))
1938 1938  
... ... @@ -1940,147 +1940,55 @@
1940 1940  It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1941 1941  )))
1942 1942  
1943 -(((
1944 -
1945 -)))
1946 1946  
1947 -(((
2026 +
1948 1948  = 7. Order Info =
1949 -)))
1950 1950  
1951 -(((
1952 -(((
2029 +
1953 1953  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1954 -)))
1955 -)))
1956 1956  
1957 -(((
1958 -(((
2032 +
1959 1959  (% style="color:#4f81bd" %)**XXX:**
1960 -)))
1961 -)))
1962 1962  
1963 -(((
1964 -* (((
1965 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1966 -)))
1967 -)))
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
1968 1968  
1969 -(((
1970 -* (((
1971 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1972 -)))
1973 -)))
1974 -
1975 -(((
1976 -* (((
1977 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1978 -)))
1979 -)))
1980 -
1981 -(((
1982 -* (((
1983 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1984 -)))
1985 -)))
1986 -
1987 -(((
1988 -* (((
1989 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1990 -)))
1991 -)))
1992 -
1993 -(((
1994 -* (((
1995 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1996 -)))
1997 -)))
1998 -
1999 -(((
2000 -* (((
2001 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
2002 -)))
2003 -)))
2004 -
2005 -(((
2006 -* (((
2007 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
2008 -)))
2009 -)))
2010 -
2011 -(((
2012 -* (((
2013 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2014 -
2015 -
2016 -)))
2017 -
2018 2018  = 8. Packing Info =
2019 -)))
2020 2020  
2021 -(((
2022 -(((
2047 +
2023 2023  **Package Includes**:
2024 -)))
2025 -)))
2026 2026  
2027 -(((
2028 -(((
2029 2029  * LT-22222-L I/O Controller x 1
2030 2030  * Stick Antenna for LoRa RF part x 1
2031 2031  * Bracket for controller x1
2032 2032  * Program cable x 1
2033 -)))
2034 -)))
2035 2035  
2036 -(((
2037 -(((
2038 2038  **Dimension and weight**:
2039 -)))
2040 -)))
2041 2041  
2042 -(((
2043 -(((
2044 2044  * Device Size: 13.5 x 7 x 3 cm
2045 2045  * Device Weight: 105g
2046 2046  * Package Size / pcs : 14.5 x 8 x 5 cm
2047 2047  * Weight / pcs : 170g
2048 2048  
2049 -
2050 -)))
2051 -)))
2052 -
2053 -(((
2054 2054  = 9. Support =
2055 -)))
2056 2056  
2057 2057  * (((
2058 -(((
2059 2059  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.
2060 2060  )))
2061 -)))
2062 2062  * (((
2063 -(((
2064 -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]]
2065 2065  )))
2066 -)))
2067 2067  
2068 -(((
2069 -(((
2070 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2071 -
2072 -
2073 -)))
2074 -
2075 -(((
2076 2076  = 10. Reference​​​​​ =
2077 2077  
2078 -* Product Page:
2079 -
2080 -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 -
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]]
2082 2082  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
2083 2083  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2084 2084  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2085 -)))
2086 -)))

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