Last modified by Bei Jinggeng on 2024/08/02 17:52
<
From version < 99.23 >
edited by Xiaoling
on 2023/05/31 16:52
To version < 108.1
edited by Bei Jinggeng
on 2024/08/02 17:52
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LSPH01-LoRaWAN Soil pH Sensor User Manual
1 +LSPH01 -- LoRaWAN Soil pH Sensor User Manual
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
... ... @@ -5,6 +5,10 @@
5 5  
6 6  
7 7  
8 +
9 +
10 +
11 +
8 8  **Table of Contents:**
9 9  
10 10  {{toc/}}
... ... @@ -195,11 +195,11 @@
195 195  Normal uplink payload:
196 196  )))
197 197  
198 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:470px" %)
199 -|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
202 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:470px" %)
203 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
200 200  **Size(bytes)**
201 -)))|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**1**
202 -|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(% style="width:62.5px" %)(((
205 +)))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**
206 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(% style="width:62.5px" %)(((
203 203  [[Temperature (Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
204 204  )))|[[Soil pH>>||anchor="H2.3.3SoilpH"]]|[[Soil Temperature>>||anchor="H2.3.4SoilTemperature"]]|(((
205 205  [[Digital Interrupt (Optional)>>||anchor="H2.3.5InterruptPin"]]
... ... @@ -281,8 +281,8 @@
281 281  )))
282 282  
283 283  
284 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:496px" %)
285 -|=(% style="width: 160px;background-color:#D9E2F3;color:#0070C0" %)**Message Type Code**|=(% style="width: 163px;background-color:#D9E2F3;color:#0070C0" %)**Description**|=(% style="width: 173px;background-color:#D9E2F3;color:#0070C0" %)**Payload**
288 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:496px" %)
289 +|=(% style="width: 160px;background-color:#4F81BD;color:white" %)**Message Type Code**|=(% style="width: 163px;background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 173px;background-color:#4F81BD;color:white" %)**Payload**
286 286  |(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
287 287  |(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]]
288 288  |(% style="width:160px" %)0x03|(% style="width:163px" %)Reply Calibration Info|(% style="width:173px" %)[[Calibration Payload>>||anchor="H2.7Calibration"]]
... ... @@ -378,10 +378,8 @@
378 378  
379 379  
380 380  (((
381 -(((
382 382  If the LSPH01 has more than 7 days not use or just clean the pH probe. User should put the probe inside pure water for more than 24 hours for activation. If no put in water, user need to put inside soil for more than 24 hours to ensure the measurement accuracy. 
383 383  )))
384 -)))
385 385  
386 386  
387 387  === 2.6.2 Measurement ===
... ... @@ -388,13 +388,11 @@
388 388  
389 389  
390 390  (((
391 -(% style="color:#4f81bd" %)**Measurement the soil surface:**
393 +(% style="color:blue" %)**Measurement the soil surface:**
392 392  )))
393 393  
394 394  (((
395 395  [[image:1654592946732-634.png]]
396 -
397 -
398 398  )))
399 399  
400 400  (((
... ... @@ -418,7 +418,7 @@
418 418  )))
419 419  
420 420  (((
421 -(% style="color:#4f81bd" %)**Measurement inside soil:**
421 +(% style="color:blue" %)**Measurement inside soil:**
422 422  )))
423 423  
424 424  (((
... ... @@ -433,24 +433,28 @@
433 433  === 2.6.3 Maintain Probe ===
434 434  
435 435  
436 -1. (((
437 -pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
436 +(((
437 +~1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
438 438  )))
439 -1. (((
440 -After long time use (3~~ 6  months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it.
439 +
440 +(((
441 +2. After long time use (3~~ 6  months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it.
441 441  )))
442 -1. (((
443 -Probe reference electrode is also no strong, need to avoid strong force or hitting.
443 +
444 +(((
445 +3. Probe reference electrode is also no strong, need to avoid strong force or hitting.
444 444  )))
445 -1. (((
446 -User should keep reference electrode wet while not use.
447 +
448 +(((
449 +4. User should keep reference electrode wet while not use.
447 447  )))
448 -1. (((
449 -Avoid the probes to touch oily matter. Which will cause issue in accuracy.
451 +
452 +(((
453 +5. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
450 450  )))
451 -1. (((
452 -The probe is IP68 can be put in water.
453 453  
456 +(((
457 +6. The probe is IP68 can be put in water.
454 454  
455 455  
456 456  )))
... ... @@ -458,15 +458,26 @@
458 458  == 2.7 Calibration ==
459 459  
460 460  
465 +(% style="color:blue" %)**Step1 :**(%%)** Clean probe**
466 +
467 +user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks new, users can clean it to remove hydrochloric acid or other liquids from the surface.
468 +
469 +(% style="color:blue" %)**Step2 :**(%%)** Immerse the sensor in ph buffer solution to make the sensor values stable**
470 +
461 461  (((
462 462  User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable).
473 +
474 +(% style="color:red" %)**Note: Only one ph buffer with one of the ph values needs to be calibrated during calibration. Wait for the sensor measurement value to be stable, it does not need to be the same as the ph marked by the ph buffer**
475 +
476 +
477 +(% style="color:blue" %)**Step3 :**(%%)** The numerically stable sensors were calibrated using commands**
463 463  )))
464 464  
465 465  (((
466 -After stable, user can use below command to calibrate.
481 + User can use below command to calibrate.
467 467  
468 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:520px" %)
469 -|(% style="background-color:#d9e2f3; color:#0070c0; width:120px" %)**pH buffer solution**|(% style="background-color:#d9e2f3; color:#0070c0; width:150px" %)**AT Command to calibrate**|(% style="background-color:#d9e2f3; color:#0070c0; width:150px" %)**Downlink Command**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**Read Cal Value**
483 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
484 +|(% style="background-color:#4f81bd; color:white; width:120px" %)**pH buffer solution**|(% style="background-color:#4f81bd; color:white; width:150px" %)**AT Command to calibrate**|(% style="background-color:#4f81bd; color:white; width:145px" %)**Downlink Command**|(% style="background-color:#4f81bd; color:white; width:95px" %)**Read Cal Value**
470 470  |(% style="width:149px" %)4.00|(% style="width:197px" %)AT+PHCAL=4|(% style="width:206px" %)(((
471 471  0x13 04
472 472  Reply with Calibrate payload
... ... @@ -491,13 +491,25 @@
491 491  )))
492 492  )))
493 493  
509 +To use the AT COMMAND, refer to this link:
494 494  
511 +* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
512 +
513 +* AT Command via UART Connection : See [[UART Connection>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
514 +
515 +To use Downlink, take TTN as an example, please refer to this link:
516 +
517 +* LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>url:http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
518 +
519 +When the command is successfully used, the node sends a uplink.
520 +This is the payload for uplink
521 +
495 495  (% style="color:#037691" %)**Calibration Payload**
496 496  
497 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
498 -|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
524 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
525 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
499 499  **Size(bytes)**
500 -)))|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**7**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**1**
527 +)))|=(% style="width: 100px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 100px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 100px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**7**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**1**
501 501  |Value|(((
502 502  PH4 Calibrate value
503 503  )))|PH6.86 Calibrate value|(((
... ... @@ -509,13 +509,21 @@
509 509  
510 510  User can also send 0x14 downlink command to poll the current calibration payload.
511 511  
512 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:480px" %)
513 -|=(% style="width: 183px; background-color:#D9E2F3;color:#0070C0" %)**Downlink Control Type**|=(% style="width: 55px; background-color:#D9E2F3;color:#0070C0" %)FPort|=(% style="width: 93px; background-color:#D9E2F3;color:#0070C0" %)**Type Code**|=(% style="width: 146px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)**Downlink payload size(bytes)**
539 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:480px" %)
540 +|=(% style="width: 183px; background-color:#4F81BD;color:white" %)**Downlink Control Type**|=(% style="width: 55px; background-color:#4F81BD;color:white" %)FPort|=(% style="width: 93px; background-color:#4F81BD;color:white" %)**Type Code**|=(% style="width: 149px; background-color:#4F81BD;color:white" %)**Downlink payload size(bytes)**
514 514  |(% style="width:183px" %)Get Calibration Version Info|(% style="width:55px" %)Any|(% style="width:93px" %)14|(% style="width:146px" %)2
515 515  
516 516  * Reply to the confirmation package: 14 01
544 +
517 517  * Reply to non-confirmed packet: 14 00
518 518  
547 +(% style="color:blue" %)**Step4 : **(%%)**After the calibration is completed, its measurement results in this ph buffer solution should be consistent with the numerical value of the command used in the calibration.**
548 +
549 +Examples:
550 +After using the command AT+PH=9 in 9.18ph buffer
551 +The readout returned by the sensor in 9.18ph buffer should be pH=9
552 +
553 +
519 519  == 2.8 Frequency Plans ==
520 520  
521 521  
... ... @@ -600,6 +600,7 @@
600 600  )))
601 601  
602 602  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
638 +
603 603  * Use the Join successful sub-band if the server doesn't include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
604 604  
605 605  === 2.8.3 CN470-510 (CN470) ===
... ... @@ -710,6 +710,7 @@
710 710  )))
711 711  
712 712  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
749 +
713 713  * Use the Join successful sub-band if the server doesn't include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
714 714  
715 715  === 2.8.5 AS920-923 & AS923-925 (AS923) ===
... ... @@ -839,9 +839,6 @@
839 839  922.5 - SF7BW125 to SF12BW125
840 840  )))
841 841  
842 -(((
843 -
844 -)))
845 845  
846 846  (((
847 847  (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
... ... @@ -875,9 +875,6 @@
875 875  923.3 - SF7BW125 to SF12BW125
876 876  )))
877 877  
878 -(((
879 -
880 -)))
881 881  
882 882  (((
883 883  (% style="color:blue" %)**Downlink:**
... ... @@ -911,9 +911,6 @@
911 911  865.9850 - SF7BW125 to SF12BW125
912 912  )))
913 913  
914 -(((
915 -
916 -)))
917 917  
918 918  (((
919 919  (% style="color:blue" %)**Downlink:**
... ... @@ -934,6 +934,7 @@
934 934  The LSPH01 has an internal LED which is to show the status of different state.
935 935  
936 936  * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
965 +
937 937  * Blink once when device transmit a packet.
938 938  
939 939  == 2.10 ​Firmware Change Log ==
... ... @@ -981,9 +981,6 @@
981 981  They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
982 982  )))
983 983  
984 -(((
985 -
986 -)))
987 987  
988 988  * (((
989 989  (% style="color:#4f81bd" %)** Commands special design for LSPH01**
... ... @@ -1001,8 +1001,8 @@
1001 1001  
1002 1002  (% style="color:#037691" %)**AT Command: AT+TDC**
1003 1003  
1004 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1005 -|=(% style="width: 156px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**Response**
1030 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1031 +|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
1006 1006  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
1007 1007  30000
1008 1008  OK
... ... @@ -1042,8 +1042,8 @@
1042 1042  
1043 1043  (% style="color:#037691" %)**AT Command: AT+INTMOD**
1044 1044  
1045 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1046 -|=(% style="width: 154px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1071 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1072 +|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
1047 1047  |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
1048 1048  0
1049 1049  OK
... ... @@ -1074,13 +1074,11 @@
1074 1074  )))
1075 1075  * (((
1076 1076  Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
1077 -)))
1078 1078  
1079 -(((
1104 +
1080 1080  
1081 1081  )))
1082 1082  
1083 -
1084 1084  == 3.3 Calibrate Sensor ==
1085 1085  
1086 1086  
... ... @@ -1094,11 +1094,12 @@
1094 1094  
1095 1095  (% style="color:#037691" %)**Downlink Command: 0x26**
1096 1096  
1097 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
1098 -|(% style="background-color:#d9e2f3; color:#0070c0; width:193px" %)**Downlink Control Type**|(% style="background-color:#d9e2f3; color:#0070c0; width:57px" %)**FPort**|(% style="background-color:#d9e2f3; color:#0070c0; width:91px" %)**Type Code**|(% style="background-color:#d9e2f3; color:#0070c0; width:159px" %)**Downlink payload size(bytes)**
1121 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
1122 +|(% style="background-color:#4f81bd; color:white; width:193px" %)**Downlink Control Type**|(% style="background-color:#4f81bd; color:white; width:57px" %)**FPort**|(% style="background-color:#4f81bd; color:white; width:91px" %)**Type Code**|(% style="background-color:#4f81bd; color:white; width:159px" %)**Downlink payload size(bytes)**
1099 1099  |(% style="width:193px" %)Get Firmware Version Info|(% style="width:57px" %)Any|(% style="width:91px" %)26|(% style="width:149px" %)2
1100 1100  
1101 1101  * Reply to the confirmation package: 26 01
1126 +
1102 1102  * Reply to non-confirmed packet: 26 00
1103 1103  
1104 1104  Device will send an uplink after got this downlink command. With below payload:
... ... @@ -1105,8 +1105,8 @@
1105 1105  
1106 1106  Configures info payload:
1107 1107  
1108 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
1109 -|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**5**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**1**
1133 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1134 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:70px" %)**1**|(% style="background-color:#4f81bd; color:white; width:70px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**1**|(% style="background-color:#4f81bd; color:white; width:70px" %)**1**|(% style="background-color:#4f81bd; color:white; width:60px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**5**|(% style="background-color:#4f81bd; color:white; width:90px" %)**1**
1110 1110  |Value|Software Type|(((
1111 1111  Frequency
1112 1112  Band
... ... @@ -1219,6 +1219,58 @@
1219 1219  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
1220 1220  
1221 1221  
1247 +== 7.2 Possible reasons why the device is unresponsive： ==
1248 +
1249 +
1250 +​1. Check whether the battery voltage is lower than 2.8V
1251 +2. Check whether the jumper of the device is correctly connected
1252 +
1253 +[[image:image-20240330174400-2.png]]
1254 +3. Check whether the switch here of the device is at the ISP（The switch can operate normally only when it is in RUN）
1255 +
1256 +[[image:image-20240330174406-3.png]]
1257 +​
1258 +
1259 +== 7.3 The node cannot read the sensor data ==
1260 +
1261 +This may be caused by a software firmware(≤1.1.6 version) bug, which we fixed in the latest firmware (>1.0.0 version)
1262 +
1263 +The user can fix this problem via upgrade firmware.
1264 +
1265 +
1266 +By default, The latest firmware value of POWERIC is 1, while the 3322 version requires POWERIC to be set to 0 in order to function properly
1267 +
1268 +
1269 +* **//1. Check if the hardware version is 3322//**
1270 +
1271 +If the sensor hardware version is 3322 or earlier, the user can change the POWERIC value to 0 after a firmware upgrade using one of the following methods
1272 +
1273 +**a. Using AT command**
1274 +
1275 +(% class="box infomessage" %)
1276 +(((
1277 +AT+POWERIC=0.
1278 +)))
1279 +
1280 +
1281 +**b. Using Downlink**
1282 +
1283 +(% class="box infomessage" %)
1284 +(((
1285 +FF 00(AT+POWERIC=0).
1286 +)))
1287 +
1288 +
1289 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20240531090837-1.png?rev=1.1||alt="image-20240531090837-1.png"]]
1290 +
1291 +
1292 +Please check your hardware production date
1293 +
1294 +The first two digits are the week of the year, and the last two digits are the year.
1295 +
1296 +The number 3322 is the first batch we changed the power IC.
1297 +
1298 +
1222 1222  = 8. Order Info =
1223 1223  
1224 1224  
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