Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 89.1 >
edited by Bei Jinggeng
on 2022/07/19 11:06
To version < 101.1 >
edited by Bei Jinggeng
on 2022/10/08 09:59
>
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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  (((
... ... @@ -36,11 +36,13 @@
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  (((
43 43  2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
45 +
46 +
44 44  )))
45 45  
46 46  (((
... ... @@ -55,7 +55,7 @@
55 55  (((
56 56  
57 57  
58 -**Hardware System:**
61 +(% style="color:#037691" %)**Hardware System:**
59 59  )))
60 60  
61 61  * (((
... ... @@ -80,7 +80,7 @@
80 80  (((
81 81  
82 82  
83 -**Interface for Model: LT22222-L:**
86 +(% style="color:#037691" %)**Interface for Model: LT22222-L:**
84 84  )))
85 85  
86 86  * (((
... ... @@ -105,7 +105,7 @@
105 105  (((
106 106  
107 107  
108 -**LoRa Spec:**
111 +(% style="color:#037691" %)**LoRa Spec:**
109 109  )))
110 110  
111 111  * (((
... ... @@ -166,21 +166,25 @@
166 166  Packet engine up to 256 bytes with CRC.
167 167  
168 168  
172 +
169 169  
170 170  )))
171 171  
172 172  == 1.3 Features ==
173 173  
178 +
174 174  * LoRaWAN Class A & Class C protocol
175 175  * Optional Customized LoRa Protocol
176 -* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
181 +* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
177 177  * AT Commands to change parameters
178 178  * Remote configure parameters via LoRa Downlink
179 179  * Firmware upgradable via program port
180 180  * Counting
181 181  
187 +
182 182  == 1.4  Applications ==
183 183  
190 +
184 184  * Smart Buildings & Home Automation
185 185  * Logistics and Supply Chain Management
186 186  * Smart Metering
... ... @@ -188,8 +188,10 @@
188 188  * Smart Cities
189 189  * Smart Factory
190 190  
198 +
191 191  == 1.5 Hardware Variants ==
192 192  
201 +
193 193  (% border="1" style="background-color:#f7faff; width:500px" %)
194 194  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
195 195  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
... ... @@ -201,12 +201,16 @@
201 201  * 1 x Counting Port
202 202  )))
203 203  
213 +
204 204  = 2. Power ON Device =
205 205  
216 +
206 206  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.
207 207  
208 208  (((
209 209  PWR will on when device is properly powered.
221 +
222 +
210 210  )))
211 211  
212 212  [[image:1653297104069-180.png]]
... ... @@ -215,8 +215,10 @@
215 215  
216 216  = 3. Operation Mode =
217 217  
231 +
218 218  == 3.1 How it works? ==
219 219  
234 +
220 220  (((
221 221  The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
222 222  )))
... ... @@ -226,10 +226,14 @@
226 226  )))
227 227  
228 228  
244 +
229 229  == 3.2 Example to join LoRaWAN network ==
230 230  
247 +
231 231  (((
232 232  This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
250 +
251 +
233 233  )))
234 234  
235 235  [[image:image-20220523172350-1.png||height="266" width="864"]]
... ... @@ -237,6 +237,8 @@
237 237  
238 238  (((
239 239  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
259 +
260 +
240 240  )))
241 241  
242 242  (((
... ... @@ -262,6 +262,7 @@
262 262  [[image:1653298023685-319.png]]
263 263  
264 264  
286 +
265 265  (((
266 266  (% 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.
267 267  )))
... ... @@ -272,6 +272,7 @@
272 272  
273 273  == 3.3 Uplink Payload ==
274 274  
297 +
275 275  There are five working modes + one interrupt mode on LT for different type application:
276 276  
277 277  * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
... ... @@ -281,8 +281,10 @@
281 281  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
282 282  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
283 283  
307 +
284 284  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
285 285  
310 +
286 286  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
287 287  
288 288  [[image:image-20220523174024-3.png]]
... ... @@ -299,7 +299,7 @@
299 299  * DI is for digital input. DIx=1: high or float, DIx=0: low.
300 300  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
301 301  
302 -(% style="color:red" %)Note: DI3 and DO3 bit are not valid for LT-22222-L
327 +(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
303 303  
304 304  For example if payload is: [[image:image-20220523175847-2.png]]
305 305  
... ... @@ -334,6 +334,8 @@
334 334  ** DO1 is high in case there is load between DO1 and V+.
335 335  ** DO1 LED is off in both case
336 336  
362 +
363 +
337 337  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
338 338  
339 339  
... ... @@ -357,7 +357,7 @@
357 357  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
358 358  
359 359  (((
360 -(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
387 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
361 361  )))
362 362  
363 363  (((
... ... @@ -379,6 +379,8 @@
379 379  
380 380  
381 381  (% style="color:#4f81bd" %)**AT Commands for counting:**
409 +
410 +
382 382  )))
383 383  
384 384  (((
... ... @@ -402,6 +402,7 @@
402 402  
403 403  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
404 404  
434 +
405 405  **LT22222-L**: This mode the DI1 is used as a counting pin.
406 406  
407 407  [[image:image-20220523181246-5.png]]
... ... @@ -419,7 +419,7 @@
419 419  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
420 420  
421 421  (((
422 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
452 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
423 423  )))
424 424  
425 425  
... ... @@ -463,7 +463,7 @@
463 463  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
464 464  
465 465  (((
466 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
496 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
467 467  )))
468 468  
469 469  (((
... ... @@ -524,7 +524,7 @@
524 524  )))
525 525  
526 526  (((
527 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
557 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
528 528  )))
529 529  
530 530  (((
... ... @@ -563,6 +563,7 @@
563 563  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
564 564  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.**
565 565  
596 +
566 566  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
567 567  
568 568  
... ... @@ -570,6 +570,7 @@
570 570  
571 571  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
572 572  
604 +
573 573  **Example:**
574 574  
575 575  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)
... ... @@ -582,6 +582,7 @@
582 582  
583 583  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
584 584  
617 +
585 585  **Example:**
586 586  
587 587  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -600,6 +600,7 @@
600 600  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
601 601  
602 602  
636 +
603 603  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
604 604  
605 605  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -648,6 +648,7 @@
648 648  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
649 649  
650 650  
685 +
651 651  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
652 652  
653 653  [[image:image-20220524090249-3.png]]
... ... @@ -659,6 +659,7 @@
659 659  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
660 660  
661 661  
697 +
662 662  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
663 663  
664 664  [[image:image-20220524090456-4.png]]
... ... @@ -672,6 +672,7 @@
672 672  00000101: Means both DI1 and DI2 trigger are enabled.
673 673  
674 674  
711 +
675 675  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
676 676  
677 677  Downlink command to poll MOD6 status:
... ... @@ -682,19 +682,20 @@
682 682  
683 683  
684 684  
722 +
685 685  === 3.3.7 Payload Decoder ===
686 686  
687 687  (((
688 688  
689 689  
690 -**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/]]
691 -
692 -
728 +**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0>>https://www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0]]
693 693  )))
694 694  
695 695  
732 +
696 696  == 3.4 ​Configure LT via AT or Downlink ==
697 697  
735 +
698 698  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
699 699  
700 700  (((
... ... @@ -705,8 +705,10 @@
705 705  
706 706  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
707 707  
746 +
708 708  === 3.4.1 Common Commands ===
709 709  
749 +
710 710  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]]
711 711  
712 712  
... ... @@ -716,6 +716,7 @@
716 716  
717 717  ==== 3.4.2.1 Set Transmit Interval ====
718 718  
759 +
719 719  Set device uplink interval.
720 720  
721 721  * (% style="color:#037691" %)**AT Command:**
... ... @@ -735,6 +735,7 @@
735 735  
736 736  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
737 737  
779 +
738 738  Set work mode.
739 739  
740 740  * (% style="color:#037691" %)**AT Command:**
... ... @@ -754,6 +754,7 @@
754 754  
755 755  ==== 3.4.2.3 Poll an uplink ====
756 756  
799 +
757 757  * (% style="color:#037691" %)**AT Command:**
758 758  
759 759  There is no AT Command to poll uplink
... ... @@ -763,6 +763,7 @@
763 763  
764 764  **0x08 FF     **~/~/ Poll an uplink
765 765  
809 +
766 766  **Example**: 0x08FF, ask device to send an Uplink
767 767  
768 768  
... ... @@ -770,6 +770,7 @@
770 770  
771 771  ==== 3.4.2.4 Enable Trigger Mode ====
772 772  
817 +
773 773  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
774 774  
775 775  * (% style="color:#037691" %)**AT Command:**
... ... @@ -790,6 +790,7 @@
790 790  
791 791  ==== 3.4.2.5 Poll trigger settings ====
792 792  
838 +
793 793  Poll trigger settings,
794 794  
795 795  * (% style="color:#037691" %)**AT Command:**
... ... @@ -806,6 +806,7 @@
806 806  
807 807  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
808 808  
855 +
809 809  Enable Disable DI1/DI2/DI2 as trigger,
810 810  
811 811  * (% style="color:#037691" %)**AT Command:**
... ... @@ -826,6 +826,7 @@
826 826  
827 827  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
828 828  
876 +
829 829  Set DI1 or DI3(for LT-33222-L) trigger.
830 830  
831 831  * (% style="color:#037691" %)**AT Command:**
... ... @@ -845,8 +845,10 @@
845 845  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
846 846  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
847 847  
896 +
848 848  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
849 849  
899 +
850 850  Set DI2 trigger.
851 851  
852 852  * (% style="color:#037691" %)**AT Command:**
... ... @@ -873,6 +873,7 @@
873 873  
874 874  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
875 875  
926 +
876 876  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
877 877  
878 878  * (% style="color:#037691" %)**AT Command**
... ... @@ -889,6 +889,7 @@
889 889  
890 890  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
891 891  
943 +
892 892  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
893 893  
894 894  * (% style="color:#037691" %)**AT Command**
... ... @@ -905,6 +905,7 @@
905 905  
906 906  ==== 3.4.2.11 Trigger – Set minimum interval ====
907 907  
960 +
908 908  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
909 909  
910 910  * (% style="color:#037691" %)**AT Command**
... ... @@ -919,7 +919,7 @@
919 919  (((
920 920  
921 921  
922 -(% style="color:red" %)Note: ATDC setting must be more than 5min
975 +(% style="color:red" %)**Note: ATDC setting must be more than 5min**
923 923  )))
924 924  
925 925  
... ... @@ -927,6 +927,7 @@
927 927  
928 928  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
929 929  
983 +
930 930  * (% style="color:#037691" %)**AT Command**
931 931  
932 932  There is no AT Command to control Digital Output
... ... @@ -946,11 +946,11 @@
946 946  [[image:image-20220524092754-5.png]]
947 947  
948 948  (((
949 -(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1003 +(% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
950 950  )))
951 951  
952 952  (((
953 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1007 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
954 954  )))
955 955  
956 956  
... ... @@ -958,6 +958,7 @@
958 958  
959 959  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
960 960  
1015 +
961 961  * (% style="color:#037691" %)**AT Command**
962 962  
963 963  There is no AT Command to control Digital Output
... ... @@ -994,11 +994,11 @@
994 994  [[image:image-20220524093351-8.png]]
995 995  
996 996  
997 -(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1052 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
998 998  
999 999   Latching time. Unit: ms
1000 1000  
1001 -Device will upload a packet if downlink code executes successfully.
1056 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1002 1002  
1003 1003  
1004 1004  **Example payload:**
... ... @@ -1024,6 +1024,7 @@
1024 1024  
1025 1025  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1026 1026  
1082 +
1027 1027  * (% style="color:#037691" %)**AT Command:**
1028 1028  
1029 1029  There is no AT Command to control Relay Output
... ... @@ -1046,7 +1046,7 @@
1046 1046  [[image:image-20220524093724-9.png]]
1047 1047  )))
1048 1048  
1049 -Device will upload a packet if downlink code executes successfully.
1105 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1050 1050  
1051 1051  
1052 1052  
... ... @@ -1053,6 +1053,7 @@
1053 1053  
1054 1054  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1055 1055  
1112 +
1056 1056  * (% style="color:#037691" %)**AT Command:**
1057 1057  
1058 1058  There is no AT Command to control Relay Output
... ... @@ -1076,12 +1076,12 @@
1076 1076  
1077 1077  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1078 1078  
1079 -[[image:image-20220714135731-1.png||height="406" width="627"]]
1136 +[[image:image-20221008095908-1.png||height="364" width="564"]]
1080 1080  
1081 1081  
1082 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1139 +(% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1083 1083  
1084 -Device will upload a packet if downlink code executes successfully.
1141 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1085 1085  
1086 1086  
1087 1087  **Example payload:**
... ... @@ -1104,9 +1104,9 @@
1104 1104  
1105 1105  
1106 1106  
1107 -
1108 1108  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1109 1109  
1166 +
1110 1110  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1111 1111  
1112 1112  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1123,6 +1123,7 @@
1123 1123  
1124 1124  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1125 1125  
1183 +
1126 1126  * (% style="color:#037691" %)**AT Command:**
1127 1127  
1128 1128  **AT+SETCNT=aa,(bb cc dd ee) **
... ... @@ -1145,6 +1145,7 @@
1145 1145  
1146 1146  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1147 1147  
1206 +
1148 1148  Clear counting for counting mode
1149 1149  
1150 1150  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1161,6 +1161,7 @@
1161 1161  
1162 1162  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1163 1163  
1223 +
1164 1164  * (% style="color:#037691" %)**AT Command:**
1165 1165  
1166 1166  **AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
... ... @@ -1173,13 +1173,124 @@
1173 1173  (((
1174 1174  range: aa bb cc:0 to 16777215,  (unit:second)
1175 1175  
1236 +
1237 +
1176 1176  
1177 1177  )))
1178 1178  
1241 +==== 3.4.2.20 Reset save DR DO state ====
1179 1179  
1180 1180  
1244 +* (% style="color:#037691" %)**AT Command:**
1245 +
1246 +**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
1247 +
1248 +**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.
1249 +
1250 +
1251 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1252 +
1253 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1254 +
1255 +(((
1256 +
1257 +
1258 +
1259 +
1260 +==== 3.4.2.21 Encrypted payload ====
1261 +
1262 +
1263 +* (% style="color:#037691" %)**AT Command:**
1264 +
1265 +**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
1266 +
1267 +**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1268 +
1269 +
1270 +
1271 +
1272 +==== 3.4.2.22 Get sensor value ====
1273 +
1274 +
1275 +* (% style="color:#037691" %)**AT Command:**
1276 +
1277 +**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
1278 +
1279 +**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1280 +
1281 +
1282 +
1283 +
1284 +==== 3.4.2.23 Resets the downlink packet count ====
1285 +
1286 +
1287 +* (% style="color:#037691" %)**AT Command:**
1288 +
1289 +**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)
1290 +
1291 +**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.
1292 +
1293 +
1294 +
1295 +
1296 +==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1297 +
1298 +
1299 +* (% style="color:#037691" %)**AT Command:**
1300 +
1301 + **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)
1302 +
1303 + **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.
1304 +
1305 +
1306 +* (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1307 +
1308 +**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1309 +
1310 +
1311 +
1312 +
1313 +==== 3.4.2.25 Copy downlink to uplink ====
1314 +
1315 +
1316 +* (% style="color:#037691" %)**AT Command**(%%)**:**
1317 +
1318 + **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.
1319 +
1320 +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.
1321 +
1322 +[[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"]]
1323 +
1324 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1325 +
1326 +[[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"]]
1327 +
1328 +For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1329 +
1330 +
1331 +
1332 +==== 3.4.2.26 Query version number and frequency band 、TDC ====
1333 +
1334 +
1335 +* (((
1336 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1337 +
1338 +**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1339 +
1340 +
1341 +)))
1342 +
1343 +**Example：**
1344 +
1345 +[[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"]]
1346 +
1347 +
1348 +
1349 +)))
1350 +
1181 1181  == 3.5 Integrate with Mydevice ==
1182 1182  
1353 +
1183 1183  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:
1184 1184  
1185 1185  (((
... ... @@ -1188,13 +1188,15 @@
1188 1188  
1189 1189  (((
1190 1190  (% 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:
1362 +
1363 +
1191 1191  )))
1192 1192  
1193 -[[image:image-20220719105525-1.png||height="452" width="814"]]
1366 +[[image:image-20220719105525-1.png||height="377" width="677"]]
1194 1194  
1195 1195  
1196 1196  
1197 -[[image:image-20220719110247-2.png||height="457" width="804"]]
1370 +[[image:image-20220719110247-2.png||height="388" width="683"]]
1198 1198  
1199 1199  
1200 1200  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
... ... @@ -1227,8 +1227,10 @@
1227 1227  
1228 1228  == 3.6 Interface Detail ==
1229 1229  
1403 +
1230 1230  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1231 1231  
1406 +
1232 1232  Support NPN Type sensor
1233 1233  
1234 1234  [[image:1653356991268-289.png]]
... ... @@ -1237,6 +1237,7 @@
1237 1237  
1238 1238  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1239 1239  
1415 +
1240 1240  (((
1241 1241  The DI port of LT-22222-L can support NPN or PNP output sensor.
1242 1242  )))
... ... @@ -1243,7 +1243,9 @@
1243 1243  
1244 1244  (((
1245 1245  (((
1246 -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
1422 +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.
1423 +
1424 +
1247 1247  )))
1248 1248  )))
1249 1249  
... ... @@ -1268,10 +1268,10 @@
1268 1268  )))
1269 1269  
1270 1270  * (((
1271 -Connect sensor’s output to DI1-
1449 +Connect sensor's output to DI1-
1272 1272  )))
1273 1273  * (((
1274 -Connect sensor’s VCC to DI1+.
1452 +Connect sensor's VCC to DI1+.
1275 1275  )))
1276 1276  
1277 1277  (((
... ... @@ -1279,15 +1279,17 @@
1279 1279  )))
1280 1280  
1281 1281  (((
1282 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1460 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1283 1283  )))
1284 1284  
1285 1285  (((
1286 -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.
1464 +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.
1287 1287  )))
1288 1288  
1289 1289  (((
1290 1290  
1469 +
1470 +
1291 1291  )))
1292 1292  
1293 1293  (((
... ... @@ -1299,10 +1299,10 @@
1299 1299  )))
1300 1300  
1301 1301  * (((
1302 -Connect sensor’s output to DI1+
1482 +Connect sensor's output to DI1+
1303 1303  )))
1304 1304  * (((
1305 -Connect sensor’s GND DI1-.
1485 +Connect sensor's GND DI1-.
1306 1306  )))
1307 1307  
1308 1308  (((
... ... @@ -1319,6 +1319,8 @@
1319 1319  
1320 1320  (((
1321 1321  
1502 +
1503 +
1322 1322  )))
1323 1323  
1324 1324  (((
... ... @@ -1330,10 +1330,10 @@
1330 1330  )))
1331 1331  
1332 1332  * (((
1333 -Connect sensor’s output to DI1+ with a serial 50K resistor
1515 +Connect sensor's output to DI1+ with a serial 50K resistor
1334 1334  )))
1335 1335  * (((
1336 -Connect sensor’s GND DI1-.
1518 +Connect sensor's GND DI1-.
1337 1337  )))
1338 1338  
1339 1339  (((
... ... @@ -1352,6 +1352,7 @@
1352 1352  
1353 1353  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1354 1354  
1537 +
1355 1355  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1356 1356  
1357 1357  [[image:1653357531600-905.png]]
... ... @@ -1360,6 +1360,7 @@
1360 1360  
1361 1361  === 3.6.4 Analog Input Interface ===
1362 1362  
1546 +
1363 1363  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:
1364 1364  
1365 1365  
... ... @@ -1391,6 +1391,7 @@
1391 1391  
1392 1392  === 3.6.5 Relay Output ===
1393 1393  
1578 +
1394 1394  (((
1395 1395  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:
1396 1396  )))
... ... @@ -1397,6 +1397,7 @@
1397 1397  
1398 1398  [[image:image-20220524100215-9.png]]
1399 1399  
1585 +
1400 1400  [[image:image-20220524100215-10.png||height="382" width="723"]]
1401 1401  
1402 1402  
... ... @@ -1403,6 +1403,7 @@
1403 1403  
1404 1404  == 3.7 LEDs Indicators ==
1405 1405  
1592 +
1406 1406  [[image:image-20220524100748-11.png]]
1407 1407  
1408 1408  
... ... @@ -1409,8 +1409,10 @@
1409 1409  
1410 1410  = 4. Use AT Command =
1411 1411  
1599 +
1412 1412  == 4.1 Access AT Command ==
1413 1413  
1602 +
1414 1414  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.
1415 1415  
1416 1416  [[image:1653358238933-385.png]]
... ... @@ -1615,6 +1615,7 @@
1615 1615  
1616 1616  == 4.2 Common AT Command Sequence ==
1617 1617  
1807 +
1618 1618  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1619 1619  
1620 1620  (((
... ... @@ -1725,6 +1725,8 @@
1725 1725  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1726 1726  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.
1727 1727  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
1918 +
1919 +
1728 1728  )))
1729 1729  
1730 1730  (((
... ... @@ -1738,13 +1738,16 @@
1738 1738  
1739 1739  === 4.2.3 Change to Class A ===
1740 1740  
1933 +
1741 1741  If sensor JOINED
1742 1742  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1743 1743  ATZ
1744 1744  
1745 1745  
1939 +
1746 1746  = 5. FAQ =
1747 1747  
1942 +
1748 1748  == 5.1 How to upgrade the image? ==
1749 1749  
1750 1750  
... ... @@ -1761,12 +1761,14 @@
1761 1761  
1762 1762  (((
1763 1763  (% 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]].
1764 -(% 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/]].
1959 +(% 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]].
1765 1765  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1766 1766  
1767 1767  
1768 1768  (% style="color:blue" %)**For LT-22222-L**(%%):
1769 1769  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.
1965 +
1966 +
1770 1770  )))
1771 1771  
1772 1772   [[image:image-20220524103407-12.png]]
... ... @@ -1778,6 +1778,7 @@
1778 1778  
1779 1779  (% 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:
1780 1780  
1978 +
1781 1781  [[image:1653360054704-518.png||height="186" width="745"]]
1782 1782  
1783 1783  
... ... @@ -1786,6 +1786,8 @@
1786 1786  
1787 1787  
1788 1788  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1987 +
1988 +
1789 1789  )))
1790 1790  )))
1791 1791  
... ... @@ -1796,7 +1796,10 @@
1796 1796  (((
1797 1797  
1798 1798  
1999 +
1799 1799  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2001 +
2002 +
1800 1800  )))
1801 1801  
1802 1802  (((
... ... @@ -1809,25 +1809,33 @@
1809 1809  (((
1810 1810  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1811 1811  
2015 +
1812 1812  
1813 1813  )))
1814 1814  )))
1815 1815  
1816 1816  (((
1817 -(% 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.
2021 +(% 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.
2022 +
2023 +
1818 1818  )))
1819 1819  
1820 1820  (((
1821 1821  [[image:1653360231087-571.png||height="401" width="727"]]
2028 +
2029 +
1822 1822  )))
1823 1823  
1824 1824  (((
1825 -(% 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.
2033 +(% 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.**
1826 1826  )))
1827 1827  
1828 1828  
2037 +
1829 1829  (((
1830 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2039 +(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2040 +
2041 +
1831 1831  )))
1832 1832  
1833 1833  (((
... ... @@ -1851,16 +1851,21 @@
1851 1851  [[image:1653360498588-932.png||height="485" width="726"]]
1852 1852  
1853 1853  
2065 +
1854 1854  == 5.4 Can I see counting event in Serial? ==
1855 1855  
2068 +
1856 1856  (((
1857 -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.
2070 +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.
1858 1858  
1859 1859  
2073 +
1860 1860  == 5.5 Can i use point to point communication for LT-22222-L? ==
1861 1861  
2076 +
1862 1862  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1863 1863  
2079 +
1864 1864  
1865 1865  )))
1866 1866  
... ... @@ -1867,6 +1867,7 @@
1867 1867  (((
1868 1868  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1869 1869  
2086 +
1870 1870  If the device is not shut down, but directly powered off.
1871 1871  
1872 1872  It will default that this is a power-off state.
... ... @@ -1876,12 +1876,25 @@
1876 1876  After restart, the status before power failure will be read from flash.
1877 1877  
1878 1878  
2096 +== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2097 +
2098 +LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2099 +
2100 +[[image:image-20221006170630-1.png||height="610" width="945"]]
2101 +
2102 +
2103 +
2104 +
1879 1879  = 6. Trouble Shooting =
2106 +
2107 +
1880 1880  )))
1881 1881  
1882 1882  (((
1883 1883  (((
1884 1884  == 6.1 Downlink doesn't work, how to solve it? ==
2113 +
2114 +
1885 1885  )))
1886 1886  )))
1887 1887  
... ... @@ -1892,7 +1892,10 @@
1892 1892  (((
1893 1893  
1894 1894  
2125 +
1895 1895  == 6.2 Have trouble to upload image. ==
2127 +
2128 +
1896 1896  )))
1897 1897  
1898 1898  (((
... ... @@ -1902,7 +1902,10 @@
1902 1902  (((
1903 1903  
1904 1904  
2138 +
1905 1905  == 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2140 +
2141 +
1906 1906  )))
1907 1907  
1908 1908  (((
... ... @@ -1910,6 +1910,7 @@
1910 1910  )))
1911 1911  
1912 1912  
2149 +
1913 1913  = 7. Order Info =
1914 1914  
1915 1915  
... ... @@ -1928,7 +1928,6 @@
1928 1928  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1929 1929  
1930 1930  
1931 -
1932 1932  = 8. Packing Info =
1933 1933  
1934 1934  
... ... @@ -1947,20 +1947,23 @@
1947 1947  * Weight / pcs : 170g
1948 1948  
1949 1949  
1950 -
1951 1951  = 9. Support =
1952 1952  
2188 +
1953 1953  * (((
1954 1954  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.
1955 1955  )))
1956 1956  * (((
1957 1957  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]]
1958 -)))
1959 1959  
1960 1960  
2196 +
2197 +
2198 +)))
2199 +
1961 1961  = 10. Reference​​​​​ =
1962 1962  
2202 +
1963 1963  * 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]]
1964 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1965 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2204 +* [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
1966 1966  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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