Last modified by Mengting Qiu on 2025/02/26 15:04
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From version < 26.4 >
edited by Xiaoling
on 2022/06/07 14:58
To version < 23.5 >
edited by Xiaoling
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55 55  * IP68 rate for the Sensor Probe
56 56  * 8500mAh Battery for long term use
57 57  
58 +
58 58  == 1.3 Probe Specification ==
59 59  
60 60  
... ... @@ -75,10 +75,12 @@
75 75  * IP68 Protection
76 76  * Length: 3.5 meters
77 77  
79 +
78 78  == 1.4 ​Applications ==
79 79  
80 80  * Smart Agriculture
81 81  
84 +
82 82  == 1.5 Pin mapping and power on ==
83 83  
84 84  [[image:1654580482666-473.png]]
... ... @@ -266,7 +266,6 @@
266 266  |0x03|Reply Calibration Info|[[Calibration Payload>>||anchor="H2.7Calibration"]]
267 267  
268 268  
269 -
270 270  === 2.3.7 Decode payload in The Things Network ===
271 271  
272 272  While using TTN network, you can add the payload format to decode the payload.
... ... @@ -340,76 +340,95 @@
340 340  
341 341  
342 342  
343 -== 2.6 Installation and Maintain ==
344 344  
345 -=== 2.6.1 Before measurement ===
346 346  
347 -(((
347 +1.
348 +11. Installation and Maintain
349 +111. Before measurement
350 +
348 348  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. 
349 -)))
350 350  
351 351  
354 +1.
355 +11.
356 +111. Measurement
352 352  
353 -=== 2.6.2 Measurement ===
358 +**Measurement the soil surface**
354 354  
355 355  
356 -(% style="color:#4f81bd" %)**Measurement the soil surface:**
361 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] Choose the proper measuring position. Split the surface soil according to the measured deep.
357 357  
358 -[[image:1654584128046-287.png]]
359 359  
360 -Choose the proper measuring position. Split the surface soil according to the measured deep.
361 -
362 362  Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
363 363  
366 +
364 364  Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
365 365  
369 +
366 366  Put soil over the probe after insert. And start to measure.
367 367  
368 368  
369 -(% style="color:#4f81bd" %)**Measurement inside soil:**
373 +**Measurement inside soil**
370 370  
375 +
376 +
371 371  Dig a hole with diameter > 20CM.
372 372  
379 +
373 373  Insert the probe inside, method like measure the surface.
374 374  
375 375  
383 +1.
384 +11.
385 +111. Maintain Probe
386 +1111. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
387 +1111. 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.
388 +1111. Probe reference electrode is also no strong, need to avoid strong force or hitting.
389 +1111. User should keep reference electrode wet while not use.
390 +1111. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
391 +1111. The probe is IP68 can be put in water.
376 376  
377 -=== 2.6.3 Maintain Probe ===
393 +1.
394 +11. Calibration
378 378  
379 -1. (((
380 -pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
381 -)))
382 -1. (((
383 -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.
384 -)))
385 -1. (((
386 -Probe reference electrode is also no strong, need to avoid strong force or hitting.
387 -)))
388 -1. (((
389 -User should keep reference electrode wet while not use.
390 -)))
391 -1. (((
392 -Avoid the probes to touch oily matter. Which will cause issue in accuracy.
393 -)))
394 -1. (((
395 -The probe is IP68 can be put in water.
396 +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).
396 396  
397 397  
398 -
399 -)))
399 +**After stable, user can use below command to calibrate.**
400 400  
401 -== 2.7 Calibration ==
402 402  
403 -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).
402 +|**pH buffer solution**|**AT Command to calibrate**|**Downlink Command**|**Read Cal Value**
403 +|**4.00**|**AT+PHCAL=4**|(((
404 +**0x13 04**
404 404  
405 -After stable, user can use below command to calibrate.
406 +**Reply with Calibrate payload**
407 +)))|(((
408 +**AT+PHCAL=?**
406 406  
407 -[[image:image-20220607144936-3.png]]
410 +**Example 41,61,91**
411 +)))
412 +|**6.86**|**AT+PHCAL=6**|(((
413 +**0x13 06**
408 408  
415 +**Reply with Calibrate payload**
416 +)))|**AT+PHCAL=?**
417 +|**9.18**|**AT+PHCAL=9**|(((
418 +**0x13 09**
409 409  
410 -(% style="color:#037691" %)**Calibration Payload**
420 +**Reply with Calibrate payload**
421 +)))|**AT+PHCAL=?**
422 +|**Factory Default**|**AT+PHCAL=15**|(((
423 +**0x13 15**
411 411  
412 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
425 +**Reply with Calibrate payload**
426 +)))|(((
427 +**AT+PHCAL=?**
428 +
429 +**Example 151**
430 +)))
431 +
432 +Calibration Payload
433 +
413 413  |(((
414 414  **Size**
415 415  
... ... @@ -424,23 +424,25 @@
424 424  
425 425  Calibrate value
426 426  )))|Reserve|(((
427 -[[Message Type>>||anchor="H2.3.6MessageType"]]
448 +[[Message>>path:#Message_Type]]
428 428  
450 +[[Type>>path:#Message_Type]]
451 +
429 429  Always 0x03
430 430  )))
431 431  
432 -
433 433  User can also send 0x14 downlink command to poll the current calibration payload.
434 434  
435 -[[image:image-20220607145603-4.png]]
436 436  
458 +|**Downlink Control Type**|**FPort**|**Type Code**|**Downlink payload size(bytes)**
459 +|Get Calibration Version Info|Any|14|2
460 +
437 437  * Reply to the confirmation package: 14 01
438 438  * Reply to non-confirmed packet: 14 00
439 439  
464 +1.
465 +11. Frequency Plans
440 440  
441 -
442 -Frequency Plans
443 -
444 444  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.
445 445  
446 446  1.
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