Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 94.1 >
edited by Bei Jinggeng
on 2022/08/24 15:57
To version < 100.1 >
edited by Bei Jinggeng
on 2022/10/08 09:59
>
Change comment: Uploaded new attachment "image-20221008095908-1.png", version {1}

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  (((
... ... @@ -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  * (((
... ... @@ -183,6 +183,8 @@
183 183  * Firmware upgradable via program port
184 184  * Counting
185 185  
187 +
188 +
186 186  == 1.4  Applications ==
187 187  
188 188  
... ... @@ -193,6 +193,8 @@
193 193  * Smart Cities
194 194  * Smart Factory
195 195  
199 +
200 +
196 196  == 1.5 Hardware Variants ==
197 197  
198 198  
... ... @@ -207,6 +207,8 @@
207 207  * 1 x Counting Port
208 208  )))
209 209  
215 +
216 +
210 210  = 2. Power ON Device =
211 211  
212 212  
... ... @@ -214,6 +214,8 @@
214 214  
215 215  (((
216 216  PWR will on when device is properly powered.
224 +
225 +
217 217  )))
218 218  
219 219  [[image:1653297104069-180.png]]
... ... @@ -222,6 +222,7 @@
222 222  
223 223  = 3. Operation Mode =
224 224  
234 +
225 225  == 3.1 How it works? ==
226 226  
227 227  
... ... @@ -297,6 +297,8 @@
297 297  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
298 298  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
299 299  
310 +
311 +
300 300  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
301 301  
302 302  
... ... @@ -316,8 +316,9 @@
316 316  * DI is for digital input. DIx=1: high or float, DIx=0: low.
317 317  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
318 318  
319 -(% style="color:red" %)Note: DI3 and DO3 bit are not valid for LT-22222-L
320 320  
332 +(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
333 +
321 321  For example if payload is: [[image:image-20220523175847-2.png]]
322 322  
323 323  
... ... @@ -336,6 +336,7 @@
336 336  * [1] RO1 relay channel is close and the RO1 LED is ON.
337 337  * [0] RO2 relay channel is open and RO2 LED is OFF;
338 338  
352 +
339 339  **LT22222-L:**
340 340  
341 341  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -351,6 +351,9 @@
351 351  ** DO1 is high in case there is load between DO1 and V+.
352 352  ** DO1 LED is off in both case
353 353  
368 +
369 +
370 +
354 354  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
355 355  
356 356  
... ... @@ -374,7 +374,7 @@
374 374  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
375 375  
376 376  (((
377 -(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
394 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
378 378  )))
379 379  
380 380  (((
... ... @@ -396,6 +396,8 @@
396 396  
397 397  
398 398  (% style="color:#4f81bd" %)**AT Commands for counting:**
416 +
417 +
399 399  )))
400 400  
401 401  (((
... ... @@ -437,7 +437,7 @@
437 437  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
438 438  
439 439  (((
440 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
459 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
441 441  )))
442 442  
443 443  
... ... @@ -481,7 +481,7 @@
481 481  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
482 482  
483 483  (((
484 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
503 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
485 485  )))
486 486  
487 487  (((
... ... @@ -542,7 +542,7 @@
542 542  )))
543 543  
544 544  (((
545 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
564 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
546 546  )))
547 547  
548 548  (((
... ... @@ -576,11 +576,14 @@
576 576  * **AT+MOD=1 ** **~-~->**  The normal working mode
577 577  * **AT+ADDMOD6=1**   **~-~->**  Enable trigger
578 578  
598 +
579 579  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
580 580  
581 581  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
582 582  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.**
583 583  
604 +
605 +
584 584  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
585 585  
586 586  
... ... @@ -588,6 +588,7 @@
588 588  
589 589  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
590 590  
613 +
591 591  **Example:**
592 592  
593 593  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)
... ... @@ -600,6 +600,7 @@
600 600  
601 601  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
602 602  
626 +
603 603  **Example:**
604 604  
605 605  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -618,6 +618,7 @@
618 618  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
619 619  
620 620  
645 +
621 621  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
622 622  
623 623  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -661,11 +661,13 @@
661 661  
662 662  * Each bits shows if the corresponding trigger has been configured.
663 663  
689 +
664 664  **Example:**
665 665  
666 666  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
667 667  
668 668  
695 +
669 669  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
670 670  
671 671  [[image:image-20220524090249-3.png]]
... ... @@ -672,11 +672,13 @@
672 672  
673 673  * Each bits shows which status has been trigger on this uplink.
674 674  
702 +
675 675  **Example:**
676 676  
677 677  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
678 678  
679 679  
708 +
680 680  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
681 681  
682 682  [[image:image-20220524090456-4.png]]
... ... @@ -683,6 +683,7 @@
683 683  
684 684  * Each bits shows which status has been trigger on this uplink.
685 685  
715 +
686 686  **Example:**
687 687  
688 688  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -690,6 +690,7 @@
690 690  00000101: Means both DI1 and DI2 trigger are enabled.
691 691  
692 692  
723 +
693 693  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
694 694  
695 695  Downlink command to poll MOD6 status:
... ... @@ -700,6 +700,7 @@
700 700  
701 701  
702 702  
734 +
703 703  === 3.3.7 Payload Decoder ===
704 704  
705 705  (((
... ... @@ -723,6 +723,8 @@
723 723  
724 724  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
725 725  
758 +
759 +
726 726  === 3.4.1 Common Commands ===
727 727  
728 728  
... ... @@ -785,6 +785,7 @@
785 785  
786 786  **0x08 FF     **~/~/ Poll an uplink
787 787  
822 +
788 788  **Example**: 0x08FF, ask device to send an Uplink
789 789  
790 790  
... ... @@ -871,6 +871,8 @@
871 871  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
872 872  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
873 873  
909 +
910 +
874 874  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
875 875  
876 876  
... ... @@ -949,7 +949,7 @@
949 949  (((
950 950  
951 951  
952 -(% style="color:red" %)Note: ATDC setting must be more than 5min
989 +(% style="color:red" %)**Note: ATDC setting must be more than 5min**
953 953  )))
954 954  
955 955  
... ... @@ -977,11 +977,11 @@
977 977  [[image:image-20220524092754-5.png]]
978 978  
979 979  (((
980 -(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1017 +(% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
981 981  )))
982 982  
983 983  (((
984 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1021 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
985 985  )))
986 986  
987 987  
... ... @@ -1030,7 +1030,7 @@
1030 1030  
1031 1031   Latching time. Unit: ms
1032 1032  
1033 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1070 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1034 1034  
1035 1035  
1036 1036  **Example payload:**
... ... @@ -1079,7 +1079,7 @@
1079 1079  [[image:image-20220524093724-9.png]]
1080 1080  )))
1081 1081  
1082 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1119 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1083 1083  
1084 1084  
1085 1085  
... ... @@ -1115,7 +1115,7 @@
1115 1115  
1116 1116  (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1117 1117  
1118 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1155 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1119 1119  
1120 1120  
1121 1121  **Example payload:**
... ... @@ -1138,7 +1138,6 @@
1138 1138  
1139 1139  
1140 1140  
1141 -
1142 1142  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1143 1143  
1144 1144  
... ... @@ -1211,11 +1211,14 @@
1211 1211  (((
1212 1212  range: aa bb cc:0 to 16777215,  (unit:second)
1213 1213  
1250 +
1251 +
1214 1214  
1215 1215  )))
1216 1216  
1217 1217  ==== 3.4.2.20 Reset save DR DO state ====
1218 1218  
1257 +
1219 1219  * (% style="color:#037691" %)**AT Command:**
1220 1220  
1221 1221  **AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
... ... @@ -1230,8 +1230,11 @@
1230 1230  (((
1231 1231  
1232 1232  
1272 +
1273 +
1233 1233  ==== 3.4.2.21 Encrypted payload ====
1234 1234  
1276 +
1235 1235  * (% style="color:#037691" %)**AT Command:**
1236 1236  
1237 1237  **AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
... ... @@ -1239,8 +1239,11 @@
1239 1239  **AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1240 1240  
1241 1241  
1284 +
1285 +
1242 1242  ==== 3.4.2.22 Get sensor value ====
1243 1243  
1288 +
1244 1244  * (% style="color:#037691" %)**AT Command:**
1245 1245  
1246 1246  **AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
... ... @@ -1248,8 +1248,11 @@
1248 1248  **AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1249 1249  
1250 1250  
1296 +
1297 +
1251 1251  ==== 3.4.2.23 Resets the downlink packet count ====
1252 1252  
1300 +
1253 1253  * (% style="color:#037691" %)**AT Command:**
1254 1254  
1255 1255  **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)
... ... @@ -1257,8 +1257,11 @@
1257 1257  **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.
1258 1258  
1259 1259  
1308 +
1309 +
1260 1260  ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1261 1261  
1312 +
1262 1262  * (% style="color:#037691" %)**AT Command:**
1263 1263  
1264 1264   **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)
... ... @@ -1270,8 +1270,12 @@
1270 1270  
1271 1271  **0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1272 1272  
1324 +
1325 +
1326 +
1273 1273  ==== 3.4.2.25 Copy downlink to uplink ====
1274 1274  
1329 +
1275 1275  * (% style="color:#037691" %)**AT Command**(%%)**:**
1276 1276  
1277 1277   **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.
... ... @@ -1290,11 +1290,16 @@
1290 1290  
1291 1291  ==== 3.4.2.26 Query version number and frequency band 、TDC ====
1292 1292  
1348 +
1293 1293  * (((
1294 -(% style="color:#037691" %)**Downlink Payload**(%%)**: 26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1350 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1351 +
1352 +**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1353 +
1354 +
1295 1295  )))
1296 1296  
1297 -Example：
1357 +**Example：**
1298 1298  
1299 1299  [[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"]]
1300 1300  
... ... @@ -1400,10 +1400,10 @@
1400 1400  )))
1401 1401  
1402 1402  * (((
1403 -Connect sensor’s output to DI1-
1463 +Connect sensor's output to DI1-
1404 1404  )))
1405 1405  * (((
1406 -Connect sensor’s VCC to DI1+.
1466 +Connect sensor's VCC to DI1+.
1407 1407  )))
1408 1408  
1409 1409  (((
... ... @@ -1411,11 +1411,11 @@
1411 1411  )))
1412 1412  
1413 1413  (((
1414 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1474 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1415 1415  )))
1416 1416  
1417 1417  (((
1418 -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.
1478 +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.
1419 1419  )))
1420 1420  
1421 1421  (((
... ... @@ -1433,10 +1433,10 @@
1433 1433  )))
1434 1434  
1435 1435  * (((
1436 -Connect sensor’s output to DI1+
1496 +Connect sensor's output to DI1+
1437 1437  )))
1438 1438  * (((
1439 -Connect sensor’s GND DI1-.
1499 +Connect sensor's GND DI1-.
1440 1440  )))
1441 1441  
1442 1442  (((
... ... @@ -1466,10 +1466,10 @@
1466 1466  )))
1467 1467  
1468 1468  * (((
1469 -Connect sensor’s output to DI1+ with a serial 50K resistor
1529 +Connect sensor's output to DI1+ with a serial 50K resistor
1470 1470  )))
1471 1471  * (((
1472 -Connect sensor’s GND DI1-.
1532 +Connect sensor's GND DI1-.
1473 1473  )))
1474 1474  
1475 1475  (((
... ... @@ -1536,6 +1536,7 @@
1536 1536  
1537 1537  [[image:image-20220524100215-9.png]]
1538 1538  
1599 +
1539 1539  [[image:image-20220524100215-10.png||height="382" width="723"]]
1540 1540  
1541 1541  
... ... @@ -1909,7 +1909,7 @@
1909 1909  
1910 1910  (((
1911 1911  (% 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]].
1912 -(% 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/]].
1973 +(% 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]].
1913 1913  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1914 1914  
1915 1915  
... ... @@ -1965,6 +1965,7 @@
1965 1965  (((
1966 1966  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1967 1967  
2029 +
1968 1968  
1969 1969  )))
1970 1970  )))
... ... @@ -1971,10 +1971,14 @@
1971 1971  
1972 1972  (((
1973 1973  (% 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.
2036 +
2037 +
1974 1974  )))
1975 1975  
1976 1976  (((
1977 1977  [[image:1653360231087-571.png||height="401" width="727"]]
2042 +
2043 +
1978 1978  )))
1979 1979  
1980 1980  (((
... ... @@ -1982,8 +1982,11 @@
1982 1982  )))
1983 1983  
1984 1984  
2051 +
1985 1985  (((
1986 1986  (% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2054 +
2055 +
1987 1987  )))
1988 1988  
1989 1989  (((
... ... @@ -2038,8 +2038,18 @@
2038 2038  After restart, the status before power failure will be read from flash.
2039 2039  
2040 2040  
2110 +== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2041 2041  
2112 +LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2113 +
2114 +[[image:image-20221006170630-1.png||height="610" width="945"]]
2115 +
2116 +
2117 +
2118 +
2042 2042  = 6. Trouble Shooting =
2120 +
2121 +
2043 2043  )))
2044 2044  
2045 2045  (((
... ... @@ -2099,6 +2099,8 @@
2099 2099  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2100 2100  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2101 2101  
2181 +
2182 +
2102 2102  = 8. Packing Info =
2103 2103  
2104 2104  
... ... @@ -2116,6 +2116,8 @@
2116 2116  * Package Size / pcs : 14.5 x 8 x 5 cm
2117 2117  * Weight / pcs : 170g
2118 2118  
2200 +
2201 +
2119 2119  = 9. Support =
2120 2120  
2121 2121  
... ... @@ -2137,4 +2137,3 @@
2137 2137  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2138 2138  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2139 2139  
2140 -
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