Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 113.2 >
edited by Xiaoling
on 2023/04/24 11:51
To version < 122.3 >
edited by Xiaoling
on 2023/06/08 17:13
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -26,7 +26,7 @@
26 26  )))
27 27  
28 28  (((
29 -The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
29 +The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
30 30  )))
31 31  
32 32  (((
... ... @@ -189,6 +189,8 @@
189 189  
190 190  * Counting
191 191  
192 +
193 +
192 192  == 1.4  Applications ==
193 193  
194 194  
... ... @@ -204,6 +204,8 @@
204 204  
205 205  * Smart Factory
206 206  
209 +
210 +
207 207  == 1.5 Hardware Variants ==
208 208  
209 209  
... ... @@ -221,6 +221,8 @@
221 221  * 1 x Counting Port
222 222  )))
223 223  
228 +
229 +
224 224  = 2. Power ON Device =
225 225  
226 226  
... ... @@ -277,7 +277,7 @@
277 277  Each LT is shipped with a sticker with the default device EUI as below:
278 278  )))
279 279  
280 -[[image:1653297924498-393.png]]
286 +[[image:image-20230425173427-2.png||height="246" width="530"]]
281 281  
282 282  
283 283  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
... ... @@ -308,28 +308,50 @@
308 308  There are five working modes + one interrupt mode on LT for different type application:
309 309  
310 310  * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
317 +
311 311  * (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
319 +
312 312  * (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
321 +
313 313  * (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
323 +
314 314  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
325 +
315 315  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
316 316  
328 +
329 +
317 317  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
318 318  
319 319  
320 320  (((
321 -The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
334 +The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
335 +
336 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
337 +|(% style="background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
338 +|Value|(((
339 +AVI1 voltage
340 +)))|(((
341 +AVI2 voltage
342 +)))|(((
343 +ACI1 Current
344 +)))|(((
345 +ACI2 Current
346 +)))|DIDORO*|(((
347 +Reserve
348 +)))|MOD
322 322  )))
323 323  
324 -[[image:image-20220523174024-3.png]]
325 -
326 326  (((
327 327  
328 328  
329 329  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
355 +
356 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
357 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
358 +|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
330 330  )))
331 331  
332 -[[image:image-20220523174254-4.png]]
333 333  
334 334  * RO is for relay. ROx=1 : close，ROx=0 always open.
335 335  * DI is for digital input. DIx=1: high or float, DIx=0: low.
... ... @@ -379,18 +379,26 @@
379 379  
380 380  (((
381 381  Total : 11 bytes payload
410 +
411 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
412 +|(% style="background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="background-color:#D9E2F3;color:#0070C0" %)**4**|(% style="background-color:#D9E2F3;color:#0070C0" %)**4**|(% style="background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
413 +|Value|COUNT1|COUNT2 |DIDORO*|(((
414 +Reserve
415 +)))|MOD
382 382  )))
383 383  
384 -[[image:image-20220523180452-3.png]]
385 -
386 -
387 387  (((
419 +
420 +
388 388  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
389 -)))
390 390  
391 -[[image:image-20220523180506-4.png]]
423 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
424 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
425 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
392 392  
393 -* RO is for relay. ROx=1 : close，ROx=0 always open.
427 +RO is for relay. ROx=1 : close，ROx=0 always open.
428 +)))
429 +
394 394  * FIRST: Indicate this is the first packet after join network.
395 395  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
396 396  
... ... @@ -448,15 +448,24 @@
448 448  
449 449  **LT22222-L**: This mode the DI1 is used as a counting pin.
450 450  
451 -[[image:image-20220523181246-5.png]]
487 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
488 +|**Size(bytes)**|**4**|**2**|**2**|**1**|**1**|**1**
489 +|Value|COUNT1|(((
490 +ACI1 Current
491 +)))|(((
492 +ACI2 Current
493 +)))|DIDORO*|Reserve|MOD
452 452  
453 453  (((
454 454  
455 455  
456 456  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
499 +
500 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
501 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
502 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
457 457  )))
458 458  
459 -[[image:image-20220523181301-6.png]]
460 460  
461 461  * RO is for relay. ROx=1 : close，ROx=0 always open.
462 462  * FIRST: Indicate this is the first packet after join network.
... ... @@ -498,16 +498,25 @@
498 498  
499 499  (((
500 500  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
501 -)))
502 502  
503 -[[image:image-20220523181903-8.png]]
547 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
548 +|**Size(bytes)**|**4**|**4**|**1**|**1**|**1**
549 +|Value|COUNT1|AVI1 Counting|DIDORO*|(((
550 +Reserve
504 504  
552 +
553 +)))|MOD
554 +)))
505 505  
556 +
506 506  (((
507 507  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
559 +
560 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
561 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
562 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
508 508  )))
509 509  
510 -[[image:image-20220523181727-7.png]]
511 511  
512 512  * RO is for relay. ROx=1 : close，ROx=0 always open.
513 513  * FIRST: Indicate this is the first packet after join network.
... ... @@ -562,12 +562,29 @@
562 562  
563 563  **LT22222-L**: This mode the DI1 is used as a counting pin.
564 564  
565 -[[image:image-20220523182334-9.png]]
619 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
620 +|**Size(bytes)**|**2**|**2**|**2**|**2**|**1**|**1**|**1**
621 +|Value|(((
622 +AVI1
623 +voltage
624 +)))|(((
625 +AVI2
626 +voltage
627 +)))|(((
628 +ACI1
629 +Current
630 +)))|COUNT1|DIDORO*|(((
631 +Reserve
632 +)))|MOD
566 566  
567 567  (((
568 568  
569 569  
570 570  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
638 +
639 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
640 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
641 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
571 571  )))
572 572  
573 573  * RO is for relay. ROx=1 : close，ROx=0 always open.
... ... @@ -692,12 +692,51 @@
692 692  
693 693  MOD6 Payload : total 11 bytes payload
694 694  
695 -[[image:image-20220524085923-1.png]]
766 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
767 +|**Size(bytes)**|**1**|**1**|**1**|**6**|**1**|**1**
768 +|Value|(((
769 +TRI_A
770 +FLAG
771 +)))|(((
772 +TRI_A
773 +Status
774 +)))|(((
775 +TRI_DI
776 +FLAG+STA
777 +)))|Reserve|Enable/Disable MOD6|(((
778 +MOD
779 +(6)
780 +)))
696 696  
697 -
698 698  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
699 699  
700 -[[image:image-20220524090106-2.png]]
784 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
785 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
786 +|(((
787 +AV1_
788 +LOW
789 +)))|(((
790 +AV1_
791 +HIGH
792 +)))|(((
793 +AV2_
794 +LOW
795 +)))|(((
796 +AV2_
797 +HIGH
798 +)))|(((
799 +AC1_
800 +LOW
801 +)))|(((
802 +AC1_
803 +HIGH
804 +)))|(((
805 +AC2_
806 +LOW
807 +)))|(((
808 +AC2_
809 +HIGH
810 +)))
701 701  
702 702  * Each bits shows if the corresponding trigger has been configured.
703 703  
... ... @@ -706,10 +706,35 @@
706 706  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
707 707  
708 708  
709 -
710 710  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
711 711  
712 -[[image:image-20220524090249-3.png]]
821 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
822 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
823 +|(((
824 +AV1_
825 +LOW
826 +)))|(((
827 +AV1_
828 +HIGH
829 +)))|(((
830 +AV2_
831 +LOW
832 +)))|(((
833 +AV2_
834 +HIGH
835 +)))|(((
836 +AC1_
837 +LOW
838 +)))|(((
839 +AC1_
840 +HIGH
841 +)))|(((
842 +AC2_
843 +LOW
844 +)))|(((
845 +AC2_
846 +HIGH
847 +)))
713 713  
714 714  * Each bits shows which status has been trigger on this uplink.
715 715  
... ... @@ -720,7 +720,9 @@
720 720  
721 721  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
722 722  
723 -[[image:image-20220524090456-4.png]]
858 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
859 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
860 +|N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
724 724  
725 725  * Each bits shows which status has been trigger on this uplink.
726 726  
... ... @@ -776,7 +776,6 @@
776 776  
777 777  === 3.4.2 Sensor related commands ===
778 778  
779 -
780 780  ==== 3.4.2.1 Set Transmit Interval ====
781 781  
782 782  
... ... @@ -1009,9 +1009,14 @@
1009 1009  
1010 1010  (((
1011 1011  01: Low,  00: High ,  11: No action
1148 +
1149 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1150 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO2**|(% style="background-color:#d9e2f3; color:#0070c0" %)**DO3**
1151 +|02  01  00  11|Low|High|No Action
1152 +|02  00  11  01|High|No Action|Low
1153 +|02  11  01  00|No Action|Low|High
1012 1012  )))
1013 1013  
1014 -[[image:image-20220524092754-5.png]]
1015 1015  
1016 1016  (((
1017 1017  (% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
... ... @@ -1049,24 +1049,31 @@
1049 1049  
1050 1050  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1051 1051  
1052 -[[image:image-20220524093238-6.png]]
1193 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1194 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1195 +|0x01|DO1 set to low
1196 +|0x00|DO1 set to high
1197 +|0x11|DO1 NO Action
1053 1053  
1054 -
1055 1055  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1056 1056  
1057 -[[image:image-20220524093328-7.png]]
1201 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1202 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1203 +|0x01|DO2 set to low
1204 +|0x00|DO2 set to high
1205 +|0x11|DO2 NO Action
1058 1058  
1059 -
1060 1060  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1061 1061  
1062 -[[image:image-20220524093351-8.png]]
1209 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1210 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1211 +|0x01|DO3 set to low
1212 +|0x00|DO3 set to high
1213 +|0x11|DO3 NO Action
1063 1063  
1215 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:(%%) Latching time. Unit: ms
1064 1064  
1065 -(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1066 1066  
1067 - Latching time. Unit: ms
1068 -
1069 -
1070 1070  (% style="color:red" %)**Note: **
1071 1071  
1072 1072   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
... ... @@ -1116,10 +1116,21 @@
1116 1116  
1117 1117  (((
1118 1118  01: Close ,  00: Open , 11: No action
1267 +
1268 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1269 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1270 +|03  00  11|Open|No Action
1271 +|03  01  11|Close|No Action
1272 +|03  11  00|No Action|Open
1273 +|03  11  01|No Action|Close
1274 +|03  00  00|Open|Open
1275 +|03  01  01|Close|Close
1276 +|03  01  00|Close|Open
1277 +|03  00  01|Open|Close
1119 1119  )))
1120 1120  
1121 1121  (((
1122 -[[image:image-20220524093724-9.png]]
1281 +
1123 1123  )))
1124 1124  
1125 1125  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
... ... @@ -1383,7 +1383,7 @@
1383 1383  
1384 1384  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1385 1385  
1386 -(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1545 +(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L) and add DevEUI.(% style="display:none" %)
1387 1387  
1388 1388  Search under The things network
1389 1389  
... ... @@ -1568,7 +1568,6 @@
1568 1568  
1569 1569  **Black:  GND**
1570 1570  
1571 -
1572 1572  **Connection diagram:**
1573 1573  
1574 1574  [[image:1653357640609-758.png]]
... ... @@ -1576,6 +1576,22 @@
1576 1576  [[image:1653357648330-671.png||height="155" width="733"]]
1577 1577  
1578 1578  
1737 +Example connected to a regulated power supply to measure voltage
1738 +
1739 +[[image:image-20230608101532-1.png||height="606" width="447"]]
1740 +
1741 +[[image:image-20230608101608-2.jpeg||height="379" width="284"]]
1742 +
1743 +[[image:image-20230608101722-3.png||height="102" width="1139"]]
1744 +
1745 +
1746 +(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power**(%%) (% style="color:blue" %)**:**
1747 +
1748 +(% style="color:red" %)**Red:  12~~24v**
1749 +
1750 +**Black:  GND**
1751 +
1752 +
1579 1579  === 3.6.5 Relay Output ===
1580 1580  
1581 1581  
... ... @@ -1594,9 +1594,41 @@
1594 1594  == 3.7 LEDs Indicators ==
1595 1595  
1596 1596  
1597 -[[image:image-20220524100748-11.png]]
1771 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1772 +|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1773 +|**PWR**|Always on if there is power
1774 +|**SYS**|(((
1775 +After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1776 +)))
1777 +|**TX**|(((
1778 +(((
1779 +Device boot: TX blinks 5 times.
1780 +)))
1598 1598  
1782 +(((
1783 +Successful join network: TX ON for 5 seconds.
1784 +)))
1599 1599  
1786 +(((
1787 +Transmit a LoRa packet: TX blinks once
1788 +)))
1789 +)))
1790 +|**RX**|RX blinks once when receive a packet.
1791 +|**DO1**|
1792 +|**DO2**|
1793 +|**DO3**|
1794 +|**DI2**|(((
1795 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1796 +)))
1797 +|**DI2**|(((
1798 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1799 +)))
1800 +|**DI2**|(((
1801 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1802 +)))
1803 +|**RO1**|
1804 +|**RO2**|
1805 +
1600 1600  = 4. Use AT Command =
1601 1601  
1602 1602  == 4.1 Access AT Command ==
... ... @@ -2082,14 +2082,20 @@
2082 2082  [[image:1653360498588-932.png||height="485" width="726"]]
2083 2083  
2084 2084  
2085 -== 6.4 Can I see counting event in Serial? ==
2291 +== 6.4 How to change the uplink interval？ ==
2086 2086  
2087 2087  
2294 +Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
2295 +
2296 +
2297 +== 6.5 Can I see counting event in Serial? ==
2298 +
2299 +
2088 2088  (((
2089 2089  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.
2090 2090  
2091 2091  
2092 -== 6.5 Can i use point to point communication for LT-22222-L? ==
2304 +== 6.6 Can i use point to point communication for LT-22222-L? ==
2093 2093  
2094 2094  
2095 2095  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
... ... @@ -2098,7 +2098,7 @@
2098 2098  )))
2099 2099  
2100 2100  (((
2101 -== 6.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2313 +== 6.7 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2102 2102  
2103 2103  
2104 2104  If the device is not shut down, but directly powered off.
... ... @@ -2110,7 +2110,7 @@
2110 2110  After restart, the status before power failure will be read from flash.
2111 2111  
2112 2112  
2113 -== 6.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2325 +== 6.8 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2114 2114  
2115 2115  
2116 2116  LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
... ... @@ -2119,7 +2119,7 @@
2119 2119  [[image:image-20221006170630-1.png||height="610" width="945"]]
2120 2120  
2121 2121  
2122 -== 6.8 Can LT22222-L save RO state? ==
2334 +== 6.9 Can LT22222-L save RO state? ==
2123 2123  
2124 2124  
2125 2125  Firmware version needs to be no less than 1.6.0.
... ... @@ -2206,7 +2206,7 @@
2206 2206  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.
2207 2207  )))
2208 2208  * (((
2209 -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]]
2421 +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.cc>>mailto:Support@dragino.cc]]
2210 2210  
2211 2211  
2212 2212  
... ... @@ -2218,5 +2218,3 @@
2218 2218  * 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]]
2219 2219  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2220 2220  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2221 -
2222 -
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