Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 90.2 >
edited by Xiaoling
on 2022/08/18 11:36
To version < 97.2 >
edited by Xiaoling
on 2022/09/12 09:21
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -15,6 +15,7 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 +
18 18  == 1.1 What is LT Series I/O Controller ==
19 19  
20 20  (((
... ... @@ -36,7 +36,7 @@
36 36  )))
37 37  
38 38  (((
39 -1) If user’s area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
40 +1) If user's area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
40 40  )))
41 41  
42 42  (((
... ... @@ -57,7 +57,7 @@
57 57  (((
58 58  
59 59  
60 -**Hardware System:**
61 +(% style="color:#037691" %)**Hardware System:**
61 61  )))
62 62  
63 63  * (((
... ... @@ -82,7 +82,7 @@
82 82  (((
83 83  
84 84  
85 -**Interface for Model: LT22222-L:**
86 +(% style="color:#037691" %)**Interface for Model: LT22222-L:**
86 86  )))
87 87  
88 88  * (((
... ... @@ -107,7 +107,7 @@
107 107  (((
108 108  
109 109  
110 -**LoRa Spec:**
111 +(% style="color:#037691" %)**LoRa Spec:**
111 111  )))
112 112  
113 113  * (((
... ... @@ -177,7 +177,7 @@
177 177  
178 178  * LoRaWAN Class A & Class C protocol
179 179  * Optional Customized LoRa Protocol
180 -* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
181 +* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
181 181  * AT Commands to change parameters
182 182  * Remote configure parameters via LoRa Downlink
183 183  * Firmware upgradable via program port
... ... @@ -186,7 +186,6 @@
186 186  
187 187  
188 188  
189 -
190 190  == 1.4  Applications ==
191 191  
192 192  
... ... @@ -200,7 +200,6 @@
200 200  
201 201  
202 202  
203 -
204 204  == 1.5 Hardware Variants ==
205 205  
206 206  
... ... @@ -225,6 +225,8 @@
225 225  
226 226  (((
227 227  PWR will on when device is properly powered.
227 +
228 +
228 228  )))
229 229  
230 230  [[image:1653297104069-180.png]]
... ... @@ -233,6 +233,7 @@
233 233  
234 234  = 3. Operation Mode =
235 235  
237 +
236 236  == 3.1 How it works? ==
237 237  
238 238  
... ... @@ -287,6 +287,7 @@
287 287  [[image:1653298023685-319.png]]
288 288  
289 289  
292 +
290 290  (((
291 291  (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
292 292  )))
... ... @@ -297,6 +297,7 @@
297 297  
298 298  == 3.3 Uplink Payload ==
299 299  
303 +
300 300  There are five working modes + one interrupt mode on LT for different type application:
301 301  
302 302  * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
... ... @@ -306,8 +306,12 @@
306 306  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
307 307  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
308 308  
313 +
314 +
315 +
309 309  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
310 310  
318 +
311 311  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
312 312  
313 313  [[image:image-20220523174024-3.png]]
... ... @@ -324,8 +324,10 @@
324 324  * DI is for digital input. DIx=1: high or float, DIx=0: low.
325 325  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
326 326  
327 -(% style="color:red" %)Note: DI3 and DO3 bit are not valid for LT-22222-L
328 328  
336 +
337 +(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
338 +
329 329  For example if payload is: [[image:image-20220523175847-2.png]]
330 330  
331 331  
... ... @@ -344,6 +344,8 @@
344 344  * [1] RO1 relay channel is close and the RO1 LED is ON.
345 345  * [0] RO2 relay channel is open and RO2 LED is OFF;
346 346  
357 +
358 +
347 347  **LT22222-L:**
348 348  
349 349  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -359,6 +359,10 @@
359 359  ** DO1 is high in case there is load between DO1 and V+.
360 360  ** DO1 LED is off in both case
361 361  
374 +
375 +
376 +
377 +
362 362  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
363 363  
364 364  
... ... @@ -382,7 +382,7 @@
382 382  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
383 383  
384 384  (((
385 -(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
401 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
386 386  )))
387 387  
388 388  (((
... ... @@ -404,6 +404,8 @@
404 404  
405 405  
406 406  (% style="color:#4f81bd" %)**AT Commands for counting:**
423 +
424 +
407 407  )))
408 408  
409 409  (((
... ... @@ -427,6 +427,7 @@
427 427  
428 428  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
429 429  
448 +
430 430  **LT22222-L**: This mode the DI1 is used as a counting pin.
431 431  
432 432  [[image:image-20220523181246-5.png]]
... ... @@ -444,7 +444,7 @@
444 444  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
445 445  
446 446  (((
447 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
466 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
448 448  )))
449 449  
450 450  
... ... @@ -488,7 +488,7 @@
488 488  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
489 489  
490 490  (((
491 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
510 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
492 492  )))
493 493  
494 494  (((
... ... @@ -549,7 +549,7 @@
549 549  )))
550 550  
551 551  (((
552 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
571 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
553 553  )))
554 554  
555 555  (((
... ... @@ -583,11 +583,16 @@
583 583  * **AT+MOD=1 ** **~-~->**  The normal working mode
584 584  * **AT+ADDMOD6=1**   **~-~->**  Enable trigger
585 585  
605 +
606 +
586 586  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
587 587  
588 588  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
589 589  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.**
590 590  
612 +
613 +
614 +
591 591  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
592 592  
593 593  
... ... @@ -595,6 +595,7 @@
595 595  
596 596  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
597 597  
622 +
598 598  **Example:**
599 599  
600 600  AT+AVLIM=3000,6000,0,2000   (If AVI1 voltage lower than 3v or higher than 6v. or AV2 voltage is higher than 2v, LT will trigger Uplink)
... ... @@ -607,6 +607,7 @@
607 607  
608 608  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
609 609  
635 +
610 610  **Example:**
611 611  
612 612  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -625,6 +625,7 @@
625 625  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
626 626  
627 627  
654 +
628 628  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
629 629  
630 630  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -668,11 +668,14 @@
668 668  
669 669  * Each bits shows if the corresponding trigger has been configured.
670 670  
698 +
699 +
671 671  **Example:**
672 672  
673 673  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
674 674  
675 675  
705 +
676 676  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
677 677  
678 678  [[image:image-20220524090249-3.png]]
... ... @@ -679,11 +679,14 @@
679 679  
680 680  * Each bits shows which status has been trigger on this uplink.
681 681  
712 +
713 +
682 682  **Example:**
683 683  
684 684  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
685 685  
686 686  
719 +
687 687  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
688 688  
689 689  [[image:image-20220524090456-4.png]]
... ... @@ -690,6 +690,8 @@
690 690  
691 691  * Each bits shows which status has been trigger on this uplink.
692 692  
726 +
727 +
693 693  **Example:**
694 694  
695 695  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -697,6 +697,7 @@
697 697  00000101: Means both DI1 and DI2 trigger are enabled.
698 698  
699 699  
735 +
700 700  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
701 701  
702 702  Downlink command to poll MOD6 status:
... ... @@ -707,19 +707,20 @@
707 707  
708 708  
709 709  
746 +
710 710  === 3.3.7 Payload Decoder ===
711 711  
712 712  (((
713 713  
714 714  
715 -**Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
716 -
717 -
752 +**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0>>https://www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0]]
718 718  )))
719 719  
720 720  
756 +
721 721  == 3.4 ​Configure LT via AT or Downlink ==
722 722  
759 +
723 723  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
724 724  
725 725  (((
... ... @@ -730,8 +730,12 @@
730 730  
731 731  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
732 732  
770 +
771 +
772 +
733 733  === 3.4.1 Common Commands ===
734 734  
775 +
735 735  They should be available for each of Dragino Sensors, 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]]
736 736  
737 737  
... ... @@ -741,6 +741,7 @@
741 741  
742 742  ==== 3.4.2.1 Set Transmit Interval ====
743 743  
785 +
744 744  Set device uplink interval.
745 745  
746 746  * (% style="color:#037691" %)**AT Command:**
... ... @@ -760,6 +760,7 @@
760 760  
761 761  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
762 762  
805 +
763 763  Set work mode.
764 764  
765 765  * (% style="color:#037691" %)**AT Command:**
... ... @@ -779,6 +779,7 @@
779 779  
780 780  ==== 3.4.2.3 Poll an uplink ====
781 781  
825 +
782 782  * (% style="color:#037691" %)**AT Command:**
783 783  
784 784  There is no AT Command to poll uplink
... ... @@ -788,6 +788,7 @@
788 788  
789 789  **0x08 FF     **~/~/ Poll an uplink
790 790  
835 +
791 791  **Example**: 0x08FF, ask device to send an Uplink
792 792  
793 793  
... ... @@ -795,6 +795,7 @@
795 795  
796 796  ==== 3.4.2.4 Enable Trigger Mode ====
797 797  
843 +
798 798  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
799 799  
800 800  * (% style="color:#037691" %)**AT Command:**
... ... @@ -815,6 +815,7 @@
815 815  
816 816  ==== 3.4.2.5 Poll trigger settings ====
817 817  
864 +
818 818  Poll trigger settings,
819 819  
820 820  * (% style="color:#037691" %)**AT Command:**
... ... @@ -831,6 +831,7 @@
831 831  
832 832  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
833 833  
881 +
834 834  Enable Disable DI1/DI2/DI2 as trigger,
835 835  
836 836  * (% style="color:#037691" %)**AT Command:**
... ... @@ -851,6 +851,7 @@
851 851  
852 852  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
853 853  
902 +
854 854  Set DI1 or DI3(for LT-33222-L) trigger.
855 855  
856 856  * (% style="color:#037691" %)**AT Command:**
... ... @@ -870,8 +870,12 @@
870 870  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
871 871  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
872 872  
922 +
923 +
924 +
873 873  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
874 874  
927 +
875 875  Set DI2 trigger.
876 876  
877 877  * (% style="color:#037691" %)**AT Command:**
... ... @@ -898,6 +898,7 @@
898 898  
899 899  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
900 900  
954 +
901 901  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
902 902  
903 903  * (% style="color:#037691" %)**AT Command**
... ... @@ -914,6 +914,7 @@
914 914  
915 915  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
916 916  
971 +
917 917  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
918 918  
919 919  * (% style="color:#037691" %)**AT Command**
... ... @@ -930,6 +930,7 @@
930 930  
931 931  ==== 3.4.2.11 Trigger – Set minimum interval ====
932 932  
988 +
933 933  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
934 934  
935 935  * (% style="color:#037691" %)**AT Command**
... ... @@ -944,7 +944,7 @@
944 944  (((
945 945  
946 946  
947 -(% style="color:red" %)Note: ATDC setting must be more than 5min
1003 +(% style="color:red" %)**Note: ATDC setting must be more than 5min**
948 948  )))
949 949  
950 950  
... ... @@ -952,6 +952,7 @@
952 952  
953 953  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
954 954  
1011 +
955 955  * (% style="color:#037691" %)**AT Command**
956 956  
957 957  There is no AT Command to control Digital Output
... ... @@ -971,11 +971,11 @@
971 971  [[image:image-20220524092754-5.png]]
972 972  
973 973  (((
974 -(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1031 +(% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
975 975  )))
976 976  
977 977  (((
978 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1035 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
979 979  )))
980 980  
981 981  
... ... @@ -983,6 +983,7 @@
983 983  
984 984  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
985 985  
1043 +
986 986  * (% style="color:#037691" %)**AT Command**
987 987  
988 988  There is no AT Command to control Digital Output
... ... @@ -1019,11 +1019,11 @@
1019 1019  [[image:image-20220524093351-8.png]]
1020 1020  
1021 1021  
1022 -(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1080 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1023 1023  
1024 1024   Latching time. Unit: ms
1025 1025  
1026 -Device will upload a packet if downlink code executes successfully.
1084 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1027 1027  
1028 1028  
1029 1029  **Example payload:**
... ... @@ -1049,6 +1049,7 @@
1049 1049  
1050 1050  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1051 1051  
1110 +
1052 1052  * (% style="color:#037691" %)**AT Command:**
1053 1053  
1054 1054  There is no AT Command to control Relay Output
... ... @@ -1071,7 +1071,7 @@
1071 1071  [[image:image-20220524093724-9.png]]
1072 1072  )))
1073 1073  
1074 -Device will upload a packet if downlink code executes successfully.
1133 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1075 1075  
1076 1076  
1077 1077  
... ... @@ -1078,6 +1078,7 @@
1078 1078  
1079 1079  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1080 1080  
1140 +
1081 1081  * (% style="color:#037691" %)**AT Command:**
1082 1082  
1083 1083  There is no AT Command to control Relay Output
... ... @@ -1104,9 +1104,9 @@
1104 1104  [[image:image-20220714135731-1.png||height="406" width="627"]]
1105 1105  
1106 1106  
1107 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1167 +(% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1108 1108  
1109 -Device will upload a packet if downlink code executes successfully.
1169 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1110 1110  
1111 1111  
1112 1112  **Example payload:**
... ... @@ -1129,9 +1129,9 @@
1129 1129  
1130 1130  
1131 1131  
1132 -
1133 1133  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1134 1134  
1194 +
1135 1135  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1136 1136  
1137 1137  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1148,6 +1148,7 @@
1148 1148  
1149 1149  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1150 1150  
1211 +
1151 1151  * (% style="color:#037691" %)**AT Command:**
1152 1152  
1153 1153  **AT+SETCNT=aa,(bb cc dd ee) **
... ... @@ -1170,6 +1170,7 @@
1170 1170  
1171 1171  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1172 1172  
1234 +
1173 1173  Clear counting for counting mode
1174 1174  
1175 1175  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1186,6 +1186,7 @@
1186 1186  
1187 1187  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1188 1188  
1251 +
1189 1189  * (% style="color:#037691" %)**AT Command:**
1190 1190  
1191 1191  **AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
... ... @@ -1198,13 +1198,124 @@
1198 1198  (((
1199 1199  range: aa bb cc:0 to 16777215,  (unit:second)
1200 1200  
1264 +
1265 +
1201 1201  
1202 1202  )))
1203 1203  
1269 +==== 3.4.2.20 Reset save DR DO state ====
1204 1204  
1205 1205  
1272 +* (% style="color:#037691" %)**AT Command:**
1273 +
1274 +**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
1275 +
1276 +**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.
1277 +
1278 +
1279 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1280 +
1281 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1282 +
1283 +(((
1284 +
1285 +
1286 +
1287 +
1288 +==== 3.4.2.21 Encrypted payload ====
1289 +
1290 +
1291 +* (% style="color:#037691" %)**AT Command:**
1292 +
1293 +**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
1294 +
1295 +**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1296 +
1297 +
1298 +
1299 +
1300 +==== 3.4.2.22 Get sensor value ====
1301 +
1302 +
1303 +* (% style="color:#037691" %)**AT Command:**
1304 +
1305 +**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
1306 +
1307 +**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1308 +
1309 +
1310 +
1311 +
1312 +==== 3.4.2.23 Resets the downlink packet count ====
1313 +
1314 +
1315 +* (% style="color:#037691" %)**AT Command:**
1316 +
1317 +**AT+DISFCNTCHECK=0  **~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1318 +
1319 +**AT+DISFCNTCHECK=1  **~/~/When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1320 +
1321 +
1322 +
1323 +
1324 +==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1325 +
1326 +
1327 +* (% style="color:#037691" %)**AT Command:**
1328 +
1329 + **AT+DISMACANS=0**  ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1330 +
1331 + **AT+DISMACANS=1**      ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1332 +
1333 +
1334 +* (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1335 +
1336 +**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1337 +
1338 +
1339 +
1340 +
1341 +==== 3.4.2.25 Copy downlink to uplink ====
1342 +
1343 +
1344 +* (% style="color:#037691" %)**AT Command**(%%)**:**
1345 +
1346 + **AT+RPL=5**  ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1347 +
1348 +Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1349 +
1350 +[[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-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1351 +
1352 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1353 +
1354 +[[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-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1355 +
1356 +For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1357 +
1358 +
1359 +
1360 +==== 3.4.2.26 Query version number and frequency band 、TDC ====
1361 +
1362 +
1363 +* (((
1364 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1365 +
1366 +**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1367 +
1368 +
1369 +)))
1370 +
1371 +**Example：**
1372 +
1373 +[[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"]]
1374 +
1375 +
1376 +
1377 +)))
1378 +
1206 1206  == 3.5 Integrate with Mydevice ==
1207 1207  
1381 +
1208 1208  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:
1209 1209  
1210 1210  (((
... ... @@ -1213,6 +1213,8 @@
1213 1213  
1214 1214  (((
1215 1215  (% 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:
1390 +
1391 +
1216 1216  )))
1217 1217  
1218 1218  [[image:image-20220719105525-1.png||height="377" width="677"]]
... ... @@ -1252,8 +1252,10 @@
1252 1252  
1253 1253  == 3.6 Interface Detail ==
1254 1254  
1431 +
1255 1255  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1256 1256  
1434 +
1257 1257  Support NPN Type sensor
1258 1258  
1259 1259  [[image:1653356991268-289.png]]
... ... @@ -1262,6 +1262,7 @@
1262 1262  
1263 1263  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1264 1264  
1443 +
1265 1265  (((
1266 1266  The DI port of LT-22222-L can support NPN or PNP output sensor.
1267 1267  )))
... ... @@ -1268,7 +1268,9 @@
1268 1268  
1269 1269  (((
1270 1270  (((
1271 -Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1450 +Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high.
1451 +
1452 +
1272 1272  )))
1273 1273  )))
1274 1274  
... ... @@ -1293,10 +1293,10 @@
1293 1293  )))
1294 1294  
1295 1295  * (((
1296 -Connect sensor’s output to DI1-
1477 +Connect sensor's output to DI1-
1297 1297  )))
1298 1298  * (((
1299 -Connect sensor’s VCC to DI1+.
1480 +Connect sensor's VCC to DI1+.
1300 1300  )))
1301 1301  
1302 1302  (((
... ... @@ -1304,15 +1304,17 @@
1304 1304  )))
1305 1305  
1306 1306  (((
1307 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1488 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1308 1308  )))
1309 1309  
1310 1310  (((
1311 -If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1492 +If** DI1+ **= **12v**, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1312 1312  )))
1313 1313  
1314 1314  (((
1315 1315  
1497 +
1498 +
1316 1316  )))
1317 1317  
1318 1318  (((
... ... @@ -1324,10 +1324,10 @@
1324 1324  )))
1325 1325  
1326 1326  * (((
1327 -Connect sensor’s output to DI1+
1510 +Connect sensor's output to DI1+
1328 1328  )))
1329 1329  * (((
1330 -Connect sensor’s GND DI1-.
1513 +Connect sensor's GND DI1-.
1331 1331  )))
1332 1332  
1333 1333  (((
... ... @@ -1344,6 +1344,8 @@
1344 1344  
1345 1345  (((
1346 1346  
1530 +
1531 +
1347 1347  )))
1348 1348  
1349 1349  (((
... ... @@ -1355,10 +1355,10 @@
1355 1355  )))
1356 1356  
1357 1357  * (((
1358 -Connect sensor’s output to DI1+ with a serial 50K resistor
1543 +Connect sensor's output to DI1+ with a serial 50K resistor
1359 1359  )))
1360 1360  * (((
1361 -Connect sensor’s GND DI1-.
1546 +Connect sensor's GND DI1-.
1362 1362  )))
1363 1363  
1364 1364  (((
... ... @@ -1377,6 +1377,7 @@
1377 1377  
1378 1378  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1379 1379  
1565 +
1380 1380  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1381 1381  
1382 1382  [[image:1653357531600-905.png]]
... ... @@ -1385,6 +1385,7 @@
1385 1385  
1386 1386  === 3.6.4 Analog Input Interface ===
1387 1387  
1574 +
1388 1388  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:
1389 1389  
1390 1390  
... ... @@ -1416,6 +1416,7 @@
1416 1416  
1417 1417  === 3.6.5 Relay Output ===
1418 1418  
1606 +
1419 1419  (((
1420 1420  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1421 1421  )))
... ... @@ -1422,6 +1422,7 @@
1422 1422  
1423 1423  [[image:image-20220524100215-9.png]]
1424 1424  
1613 +
1425 1425  [[image:image-20220524100215-10.png||height="382" width="723"]]
1426 1426  
1427 1427  
... ... @@ -1428,6 +1428,7 @@
1428 1428  
1429 1429  == 3.7 LEDs Indicators ==
1430 1430  
1620 +
1431 1431  [[image:image-20220524100748-11.png]]
1432 1432  
1433 1433  
... ... @@ -1434,8 +1434,10 @@
1434 1434  
1435 1435  = 4. Use AT Command =
1436 1436  
1627 +
1437 1437  == 4.1 Access AT Command ==
1438 1438  
1630 +
1439 1439  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1440 1440  
1441 1441  [[image:1653358238933-385.png]]
... ... @@ -1640,6 +1640,7 @@
1640 1640  
1641 1641  == 4.2 Common AT Command Sequence ==
1642 1642  
1835 +
1643 1643  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1644 1644  
1645 1645  (((
... ... @@ -1750,6 +1750,8 @@
1750 1750  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1751 1751  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?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1752 1752  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
1946 +
1947 +
1753 1753  )))
1754 1754  
1755 1755  (((
... ... @@ -1763,13 +1763,16 @@
1763 1763  
1764 1764  === 4.2.3 Change to Class A ===
1765 1765  
1961 +
1766 1766  If sensor JOINED
1767 1767  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1768 1768  ATZ
1769 1769  
1770 1770  
1967 +
1771 1771  = 5. FAQ =
1772 1772  
1970 +
1773 1773  == 5.1 How to upgrade the image? ==
1774 1774  
1775 1775  
... ... @@ -1786,12 +1786,14 @@
1786 1786  
1787 1787  (((
1788 1788  (% 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]].
1789 -(% 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/]].
1987 +(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
1790 1790  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1791 1791  
1792 1792  
1793 1793  (% style="color:blue" %)**For LT-22222-L**(%%):
1794 1794  Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
1993 +
1994 +
1795 1795  )))
1796 1796  
1797 1797   [[image:image-20220524103407-12.png]]
... ... @@ -1803,6 +1803,7 @@
1803 1803  
1804 1804  (% 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:
1805 1805  
2006 +
1806 1806  [[image:1653360054704-518.png||height="186" width="745"]]
1807 1807  
1808 1808  
... ... @@ -1811,6 +1811,8 @@
1811 1811  
1812 1812  
1813 1813  == 5.2 How to change the LoRa Frequency Bands/Region? ==
2015 +
2016 +
1814 1814  )))
1815 1815  )))
1816 1816  
... ... @@ -1821,7 +1821,10 @@
1821 1821  (((
1822 1822  
1823 1823  
2027 +
1824 1824  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2029 +
2030 +
1825 1825  )))
1826 1826  
1827 1827  (((
... ... @@ -1834,25 +1834,33 @@
1834 1834  (((
1835 1835  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1836 1836  
2043 +
1837 1837  
1838 1838  )))
1839 1839  )))
1840 1840  
1841 1841  (((
1842 -(% style="color:#4f81bd" %)**Step1**(%%): Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
2049 +(% style="color:blue" %)**Step1**(%%):  Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
2050 +
2051 +
1843 1843  )))
1844 1844  
1845 1845  (((
1846 1846  [[image:1653360231087-571.png||height="401" width="727"]]
2056 +
2057 +
1847 1847  )))
1848 1848  
1849 1849  (((
1850 -(% 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.
2061 +(% 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.**
1851 1851  )))
1852 1852  
1853 1853  
2065 +
1854 1854  (((
1855 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2067 +(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2068 +
2069 +
1856 1856  )))
1857 1857  
1858 1858  (((
... ... @@ -1876,16 +1876,21 @@
1876 1876  [[image:1653360498588-932.png||height="485" width="726"]]
1877 1877  
1878 1878  
2093 +
1879 1879  == 5.4 Can I see counting event in Serial? ==
1880 1880  
2096 +
1881 1881  (((
1882 -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.
2098 +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.
1883 1883  
1884 1884  
2101 +
1885 1885  == 5.5 Can i use point to point communication for LT-22222-L? ==
1886 1886  
2104 +
1887 1887  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1888 1888  
2107 +
1889 1889  
1890 1890  )))
1891 1891  
... ... @@ -1892,6 +1892,7 @@
1892 1892  (((
1893 1893  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1894 1894  
2114 +
1895 1895  If the device is not shut down, but directly powered off.
1896 1896  
1897 1897  It will default that this is a power-off state.
... ... @@ -1901,12 +1901,17 @@
1901 1901  After restart, the status before power failure will be read from flash.
1902 1902  
1903 1903  
2124 +
1904 1904  = 6. Trouble Shooting =
2126 +
2127 +
1905 1905  )))
1906 1906  
1907 1907  (((
1908 1908  (((
1909 1909  == 6.1 Downlink doesn't work, how to solve it? ==
2133 +
2134 +
1910 1910  )))
1911 1911  )))
1912 1912  
... ... @@ -1917,7 +1917,10 @@
1917 1917  (((
1918 1918  
1919 1919  
2145 +
1920 1920  == 6.2 Have trouble to upload image. ==
2147 +
2148 +
1921 1921  )))
1922 1922  
1923 1923  (((
... ... @@ -1927,7 +1927,10 @@
1927 1927  (((
1928 1928  
1929 1929  
2158 +
1930 1930  == 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2160 +
2161 +
1931 1931  )))
1932 1932  
1933 1933  (((
... ... @@ -1935,6 +1935,7 @@
1935 1935  )))
1936 1936  
1937 1937  
2169 +
1938 1938  = 7. Order Info =
1939 1939  
1940 1940  
... ... @@ -1952,6 +1952,9 @@
1952 1952  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
1953 1953  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1954 1954  
2187 +
2188 +
2189 +
1955 1955  = 8. Packing Info =
1956 1956  
1957 1957  
... ... @@ -1969,18 +1969,28 @@
1969 1969  * Package Size / pcs : 14.5 x 8 x 5 cm
1970 1970  * Weight / pcs : 170g
1971 1971  
2207 +
2208 +
2209 +
1972 1972  = 9. Support =
1973 1973  
2212 +
1974 1974  * (((
1975 1975  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.
1976 1976  )))
1977 1977  * (((
1978 1978  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]]
2218 +
2219 +
2220 +
2221 +
1979 1979  )))
1980 1980  
1981 1981  = 10. Reference​​​​​ =
1982 1982  
2226 +
1983 1983  * 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]]
1984 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1985 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2228 +* [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
1986 1986  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2230 +
2231 +

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