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... ... @@ -363,16 +363,138 @@
363 363  
364 364  
365 365  
366 -== 2.6  Frequency Plans ==
366 +== 2.6 Installation and Maintain ==
367 367  
368 +=== 2.6.1 Before measurement ===
369 +
368 368  (((
369 -The LLDS12 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
371 +(((
372 +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. 
370 370  )))
374 +)))
371 371  
372 372  
373 -=== 2.6.1  EU863-870 (EU868) ===
374 374  
378 +=== 2.6.2 Measurement ===
379 +
380 +
375 375  (((
382 +(% style="color:#4f81bd" %)**Measurement the soil surface:**
383 +)))
384 +
385 +(((
386 +[[image:1654592946732-634.png]]
387 +)))
388 +
389 +(((
390 +Choose the proper measuring position. Split the surface soil according to the measured deep.
391 +)))
392 +
393 +(((
394 +Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
395 +)))
396 +
397 +(((
398 +Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
399 +)))
400 +
401 +(((
402 +Put soil over the probe after insert. And start to measure.
403 +)))
404 +
405 +(((
406 +
407 +)))
408 +
409 +(((
410 +(% style="color:#4f81bd" %)**Measurement inside soil:**
411 +)))
412 +
413 +(((
414 +Dig a hole with diameter > 20CM.
415 +)))
416 +
417 +(((
418 +Insert the probe inside, method like measure the surface.
419 +)))
420 +
421 +
422 +
423 +=== 2.6.3 Maintain Probe ===
424 +
425 +1. (((
426 +pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
427 +)))
428 +1. (((
429 +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.
430 +)))
431 +1. (((
432 +Probe reference electrode is also no strong, need to avoid strong force or hitting.
433 +)))
434 +1. (((
435 +User should keep reference electrode wet while not use.
436 +)))
437 +1. (((
438 +Avoid the probes to touch oily matter. Which will cause issue in accuracy.
439 +)))
440 +1. (((
441 +The probe is IP68 can be put in water.
442 +
443 +
444 +
445 +)))
446 +
447 +== 2.7 Calibration ==
448 +
449 +(((
450 +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).
451 +)))
452 +
453 +(((
454 +After stable, user can use below command to calibrate.
455 +)))
456 +
457 +[[image:image-20220607171149-4.png]]
458 +
459 +
460 +(% style="color:#037691" %)**Calibration Payload**
461 +
462 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
463 +|=(% style="width: 62.5px;" %)(((
464 +**Size (bytes)**
465 +)))|=(% style="width: 89px;" %)**1**|=(% style="width: 89px;" %)**1**|=(% style="width: 89px;" %)**1**|=(% style="width: 89px;" %)**7**|=(% style="width: 89px;" %)**1**
466 +|**Value**|(((
467 +PH4
468 +
469 +Calibrate value
470 +)))|PH6.86 Calibrate value|(((
471 +PH9.18
472 +
473 +Calibrate value
474 +)))|Reserve|(((
475 +[[Message Type>>||anchor="H2.3.6MessageType"]]
476 +
477 +Always 0x03
478 +)))
479 +
480 +User can also send 0x14 downlink command to poll the current calibration payload.
481 +
482 +[[image:image-20220607171416-7.jpeg]]
483 +
484 +
485 +* Reply to the confirmation package: 14 01
486 +* Reply to non-confirmed packet: 14 00
487 +
488 +== 2.8 Frequency Plans ==
489 +
490 +(((
491 +The LSPH01 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
492 +)))
493 +
494 +
495 +=== 2.8.1 EU863-870 (EU868) ===
496 +
497 +(((
376 376  (% style="color:blue" %)**Uplink:**
377 377  )))
378 378  
... ... @@ -430,7 +430,7 @@
430 430  
431 431  
432 432  
433 -=== 2.6.2  US902-928(US915) ===
555 +=== 2.8.2 US902-928(US915) ===
434 434  
435 435  (((
436 436  Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
... ... @@ -447,9 +447,8 @@
447 447  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
448 448  * 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)
449 449  
572 +=== 2.8.3 CN470-510 (CN470) ===
450 450  
451 -=== 2.6.3 CN470-510 (CN470) ===
452 -
453 453  (((
454 454  Used in China, Default use CHE=1
455 455  )))
... ... @@ -536,9 +536,8 @@
536 536  
537 537  
538 538  
660 +=== 2.8.4 AU915-928(AU915) ===
539 539  
540 -=== 2.6.4 AU915-928(AU915) ===
541 -
542 542  (((
543 543  Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
544 544  )))
... ... @@ -558,7 +558,7 @@
558 558  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
559 559  * 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)
560 560  
561 -=== 2.6.5 AS920-923 & AS923-925 (AS923) ===
681 +=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
562 562  
563 563  (((
564 564  (% style="color:blue" %)**Default Uplink channel:**
... ... @@ -666,9 +666,8 @@
666 666  
667 667  
668 668  
789 +=== 2.8.6 KR920-923 (KR920) ===
669 669  
670 -=== 2.6.6 KR920-923 (KR920) ===
671 -
672 672  (((
673 673  (% style="color:blue" %)**Default channel:**
674 674  )))
... ... @@ -739,9 +739,8 @@
739 739  
740 740  
741 741  
861 +=== 2.8.7 IN865-867 (IN865) ===
742 742  
743 -=== 2.6.7 IN865-867 (IN865) ===
744 -
745 745  (((
746 746  (% style="color:blue" %)**Uplink:**
747 747  )))
... ... @@ -776,74 +776,25 @@
776 776  
777 777  
778 778  
897 +== 2.9 LED Indicator ==
779 779  
780 -== 2.7  LED Indicator ==
899 +The LSPH01 has an internal LED which is to show the status of different state.
781 781  
782 -The LLDS12 has an internal LED which is to show the status of different state.
783 -
784 784  * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
785 785  * Blink once when device transmit a packet.
786 786  
904 +== 2.10 ​Firmware Change Log ==
787 787  
788 788  
789 -== 2.8  ​Firmware Change Log ==
907 +**Firmware download link:**
790 790  
909 +[[http:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
791 791  
792 -**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
793 793  
794 -
795 795  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
796 796  
797 797  
798 798  
799 -= 3.  LiDAR ToF Measurement =
800 -
801 -== 3.1 Principle of Distance Measurement ==
802 -
803 -The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
804 -
805 -[[image:1654831757579-263.png]]
806 -
807 -
808 -
809 -== 3.2 Distance Measurement Characteristics ==
810 -
811 -With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
812 -
813 -[[image:1654831774373-275.png]]
814 -
815 -
816 -①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
817 -
818 -②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
819 -
820 -③Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
821 -
822 -
823 -Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at the different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
824 -
825 -
826 -[[image:1654831797521-720.png]]
827 -
828 -
829 -In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
830 -
831 -[[image:1654831810009-716.png]]
832 -
833 -
834 -If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
835 -
836 -
837 -
838 -== 3.3 Notice of usage: ==
839 -
840 -Possible invalid /wrong reading for LiDAR ToF tech:
841 -
842 -* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
843 -* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
844 -* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
845 -* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
846 -
847 847  = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
848 848  
849 849  (((
... ... @@ -958,6 +958,8 @@
958 958  Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
959 959  )))
960 960  
1030 +
1031 +
961 961  == 4.3  Get Firmware Version Info ==
962 962  
963 963  Feature: use downlink to get firmware version.
... ... @@ -969,6 +969,7 @@
969 969  * Reply to the confirmation package: 26 01
970 970  * Reply to non-confirmed packet: 26 00
971 971  
1043 +
972 972  Device will send an uplink after got this downlink command. With below payload:
973 973  
974 974  Configures info payload:
... ... @@ -1221,6 +1221,7 @@
1221 1221  * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1222 1222  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1223 1223  
1296 +
1224 1224  = 10. ​ Packing Info =
1225 1225  
1226 1226  
... ... @@ -1235,6 +1235,7 @@
1235 1235  * Package Size / pcs : cm
1236 1236  * Weight / pcs : g
1237 1237  
1311 +
1238 1238  = 11.  ​Support =
1239 1239  
1240 1240  * 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.
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