Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 130.3 >
edited by Xiaoling
on 2024/02/19 14:45
To version < 126.17 >
edited by Xiaoling
on 2023/06/19 16:16
>
Change comment: There is no comment for this version

Summary

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Title
... ... @@ -1,1 +1,1 @@
1 -LT-22222-L -- LoRa IO Controller User Manual
1 +LT-22222-L LoRa IO Controller User Manual
Content
... ... @@ -3,10 +3,6 @@
3 3  
4 4  
5 5  
6 -
7 -
8 -
9 -
10 10  **Table of Contents:**
11 11  
12 12  {{toc/}}
... ... @@ -57,7 +57,7 @@
57 57  
58 58  )))
59 59  
60 -== 1.2 Specifications ==
56 +== 1.2  Specifications ==
61 61  
62 62  (((
63 63  
... ... @@ -193,7 +193,7 @@
193 193  
194 194  * Counting
195 195  
196 -== 1.4 Applications ==
192 +== 1.4  Applications ==
197 197  
198 198  
199 199  * Smart Buildings & Home Automation
... ... @@ -208,11 +208,12 @@
208 208  
209 209  * Smart Factory
210 210  
207 +
211 211  == 1.5 Hardware Variants ==
212 212  
213 213  
214 214  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
215 -|(% style="background-color:#4f81bd; color:white; width:103px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:131px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:266px" %)**Description**
212 +|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:266px" %)**Description**
216 216  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
217 217  (% style="text-align:center" %)
218 218  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -296,6 +296,7 @@
296 296  [[image:1653298023685-319.png]]
297 297  
298 298  
296 +
299 299  (((
300 300  (% 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.
301 301  
... ... @@ -329,7 +329,7 @@
329 329  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
330 330  
331 331  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
332 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
330 +|(% 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**
333 333  |Value|(((
334 334  AVI1 voltage
335 335  )))|(((
... ... @@ -351,7 +351,7 @@
351 351  |RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
352 352  )))
353 353  
354 -* RO is for relay. ROx=1 : close, ROx=0 always open.
352 +* RO is for relay. ROx=1 : close，ROx=0 always open.
355 355  * DI is for digital input. DIx=1: high or float, DIx=0: low.
356 356  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
357 357  
... ... @@ -362,7 +362,7 @@
362 362  
363 363  **The value for the interface is:  **
364 364  
365 -AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
363 +AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
366 366  
367 367  AVI2 channel voltage is 0x04AC/1000=1.196V
368 368  
... ... @@ -390,6 +390,7 @@
390 390  ** DO1 is high in case there is load between DO1 and V+.
391 391  ** DO1 LED is off in both case
392 392  
391 +
393 393  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
394 394  
395 395  
... ... @@ -401,7 +401,7 @@
401 401  Total : 11 bytes payload
402 402  
403 403  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
404 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
403 +|(% 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**
405 405  |Value|COUNT1|COUNT2 |DIDORO*|(((
406 406  Reserve
407 407  )))|MOD
... ... @@ -414,7 +414,7 @@
414 414  |**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
415 415  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
416 416  
417 -RO is for relay. ROx=1 : close , ROx=0 always open.
416 +RO is for relay. ROx=1 : close，ROx=0 always open.
418 418  )))
419 419  
420 420  * FIRST: Indicate this is the first packet after join network.
... ... @@ -422,8 +422,6 @@
422 422  
423 423  (((
424 424  (% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
425 -
426 -
427 427  )))
428 428  
429 429  (((
... ... @@ -430,6 +430,7 @@
430 430  **To use counting mode, please run:**
431 431  )))
432 432  
430 +
433 433  (((
434 434  (% class="box infomessage" %)
435 435  (((
... ... @@ -468,7 +468,7 @@
468 468  **LT22222-L**: This mode the DI1 is used as a counting pin.
469 469  
470 470  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
471 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
469 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0" %)**4**|(% 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**
472 472  |Value|COUNT1|(((
473 473  ACI1 Current
474 474  )))|(((
... ... @@ -483,7 +483,7 @@
483 483  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
484 484  )))
485 485  
486 -* RO is for relay. ROx=1 : close, ROx=0 always open.
484 +* RO is for relay. ROx=1 : close，ROx=0 always open.
487 487  * FIRST: Indicate this is the first packet after join network.
488 488  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
489 489  
... ... @@ -521,7 +521,7 @@
521 521  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.
522 522  
523 523  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
524 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
522 +|(% 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**
525 525  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
526 526  Reserve
527 527  )))|MOD
... ... @@ -535,7 +535,7 @@
535 535  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
536 536  )))
537 537  
538 -* RO is for relay. ROx=1 : close, ROx=0 always open.
536 +* RO is for relay. ROx=1 : close，ROx=0 always open.
539 539  * FIRST: Indicate this is the first packet after join network.
540 540  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
541 541  
... ... @@ -581,7 +581,7 @@
581 581  **LT22222-L**: This mode the DI1 is used as a counting pin.
582 582  
583 583  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
584 -|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
582 +|(% 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**
585 585  |Value|(((
586 586  AVI1 voltage
587 587  )))|(((
... ... @@ -600,7 +600,7 @@
600 600  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
601 601  )))
602 602  
603 -* RO is for relay. ROx=1 : close, ROx=0 always open.
601 +* RO is for relay. ROx=1 : close，ROx=0 always open.
604 604  * FIRST: Indicate this is the first packet after join network.
605 605  * (((
606 606  DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -643,6 +643,7 @@
643 643  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
644 644  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.**
645 645  
644 +
646 646  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
647 647  
648 648  
... ... @@ -717,7 +717,7 @@
717 717  MOD6 Payload : total 11 bytes payload
718 718  
719 719  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
720 -|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:49px" %)**6**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**1**
719 +|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:69px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:49px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:109px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**1**
721 721  |Value|(((
722 722  TRI_A FLAG
723 723  )))|(((
... ... @@ -1045,7 +1045,7 @@
1045 1045  01: Low,  00: High ,  11: No action
1046 1046  
1047 1047  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1048 -|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**DO1**|(% style="background-color:#4f81bd; color:white" %)**DO2**|(% style="background-color:#4f81bd; color:white" %)**DO3**
1047 +|(% 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**
1049 1049  |02  01  00  11|Low|High|No Action
1050 1050  |02  00  11  01|High|No Action|Low
1051 1051  |02  11  01  00|No Action|Low|High
... ... @@ -1088,7 +1088,7 @@
1088 1088  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1089 1089  
1090 1090  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1091 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1090 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1092 1092  |0x01|DO1 set to low
1093 1093  |0x00|DO1 set to high
1094 1094  |0x11|DO1 NO Action
... ... @@ -1096,7 +1096,7 @@
1096 1096  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1097 1097  
1098 1098  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1099 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1098 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1100 1100  |0x01|DO2 set to low
1101 1101  |0x00|DO2 set to high
1102 1102  |0x11|DO2 NO Action
... ... @@ -1104,7 +1104,7 @@
1104 1104  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1105 1105  
1106 1106  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1107 -|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1106 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Second Byte**|(% style="background-color:#d9e2f3; color:#0070c0" %)**Status**
1108 1108  |0x01|DO3 set to low
1109 1109  |0x00|DO3 set to high
1110 1110  |0x11|DO3 NO Action
... ... @@ -1141,7 +1141,7 @@
1141 1141  
1142 1142  
1143 1143  
1144 -==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1143 +==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1145 1145  
1146 1146  
1147 1147  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1162,7 +1162,7 @@
1162 1162  01: Close ,  00: Open , 11: No action
1163 1163  
1164 1164  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1165 -|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1164 +|(% style="background-color:#d9e2f3; color:#0070c0" %)**Downlink Code**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO1**|(% style="background-color:#d9e2f3; color:#0070c0" %)**RO2**
1166 1166  |03  00  11|Open|No Action
1167 1167  |03  01  11|Close|No Action
1168 1168  |03  11  00|No Action|Open
... ... @@ -1433,6 +1433,7 @@
1433 1433  [[image:1653356838789-523.png||height="337" width="740"]]
1434 1434  
1435 1435  
1435 +
1436 1436  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1437 1437  
1438 1438  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1585,12 +1585,8 @@
1585 1585  
1586 1586  [[image:image-20230616235145-1.png]]
1587 1587  
1588 -(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1589 1589  
1590 -[[image:image-20240219115718-1.png]]
1591 1591  
1592 -
1593 -
1594 1594  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1595 1595  
1596 1596  
... ... @@ -1666,7 +1666,7 @@
1666 1666  
1667 1667  
1668 1668  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1669 -|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:470px" %)**Feature**
1665 +|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**LEDs**|(% style="background-color:#d9e2f3; color:#0070c0; width:470px" %)**Feature**
1670 1670  |**PWR**|Always on if there is power
1671 1671  |**SYS**|(((
1672 1672  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.
... ... @@ -2031,6 +2031,7 @@
2031 2031  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
2032 2032  
2033 2033  **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.**
2030 +
2034 2034  )))
2035 2035  
2036 2036  (((
... ... @@ -2043,11 +2043,13 @@
2043 2043  
2044 2044  (((
2045 2045  (% style="color:blue" %)**If sensor JOINED:**
2043 +(((
2044 +(% class="box infomessage" %)
2045 +**AT+CLASS=A**
2046 2046  
2047 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
2048 -
2049 -(% style="background-color:#dcdcdc" %)**ATZ**
2047 +**ATZ**
2050 2050  )))
2049 +)))
2051 2051  
2052 2052  
2053 2053  = 5. Case Study =
... ... @@ -2099,6 +2099,7 @@
2099 2099  
2100 2100  (% 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:
2101 2101  
2101 +
2102 2102  [[image:1653360054704-518.png||height="186" width="745"]]
2103 2103  
2104 2104  
... ... @@ -2162,21 +2162,13 @@
2162 2162  
2163 2163  (((
2164 2164  (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2165 -
2166 2166  (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2167 -
2168 2168  (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2169 -
2170 2170  (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2171 -
2172 2172  (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2173 -
2174 2174  (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2175 -
2176 2176  (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2177 -
2178 2178  (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2179 -
2180 2180  (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2181 2181  )))
2182 2182  
... ... @@ -2188,7 +2188,7 @@
2188 2188  [[image:1653360498588-932.png||height="485" width="726"]]
2189 2189  
2190 2190  
2191 -== 6.4 How to change the uplink interval? ==
2183 +== 6.4 How to change the uplink interval？ ==
2192 2192  
2193 2193  
2194 2194  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/]]
... ... @@ -2237,12 +2237,6 @@
2237 2237  Firmware version needs to be no less than 1.6.0.
2238 2238  
2239 2239  
2240 -== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2241 -
2242 -
2243 -It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2244 -
2245 -
2246 2246  = 7. Trouble Shooting =
2247 2247  )))
2248 2248  
... ... @@ -2283,13 +2283,6 @@
2283 2283  )))
2284 2284  
2285 2285  
2286 -== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2287 -
2288 -
2289 -The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2290 -Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2291 -
2292 -
2293 2293  = 8. Order Info =
2294 2294  
2295 2295  
... ... @@ -2343,3 +2343,5 @@
2343 2343  * 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]]
2344 2344  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2345 2345  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2325 +
2326 +
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1 -XWiki.Edwin
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