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55	55	* IP68 rate for the Sensor Probe
56	56	* 8500mAh Battery for long term use
57	57
58		-
59	59	== 1.3 Probe Specification ==
60	60
61	61
...	...	@@ -76,12 +76,10 @@
76	76	* IP68 Protection
77	77	* Length: 3.5 meters
78	78
79		-
80	80	== 1.4 ​Applications ==
81	81
82	82	* Smart Agriculture
83	83
84		-
85	85	== 1.5 Pin mapping and power on ==
86	86
87	87	[[image:1654580482666-473.png]]
...	...	@@ -269,6 +269,7 @@
269	269	|0x03|Reply Calibration Info|[[Calibration Payload>>||anchor="H2.7Calibration"]]
270	270
271	271
	269	+
272	272	=== 2.3.7 Decode payload in The Things Network ===
273	273
274	274	While using TTN network, you can add the payload format to decode the payload.
...	...	@@ -342,95 +342,76 @@
342	342
343	343
344	344
	343	+== 2.6 Installation and Maintain ==
345	345
	345	+=== 2.6.1 Before measurement ===
346	346
347		-1.
348		-11. Installation and Maintain
349		-111. Before measurement
350		-
	347	+(((
351	351	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	+)))
352	352
353	353
354		-1.
355		-11.
356		-111. Measurement
357	357
358		-**Measurement the soil surface**
	353	+=== 2.6.2 Measurement ===
359	359
360	360
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.
	356	+(% style="color:#4f81bd" %)**Measurement the soil surface:**
362	362
	358	+[[image:1654584128046-287.png]]
363	363
	360	+Choose the proper measuring position. Split the surface soil according to the measured deep.
	361	+
364	364	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
365	365
366		-
367	367	Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
368	368
369		-
370	370	Put soil over the probe after insert. And start to measure.
371	371
372	372
373		-**Measurement inside soil**
	369	+(% style="color:#4f81bd" %)**Measurement inside soil:**
374	374
375		-
376		-
377	377	Dig a hole with diameter > 20CM.
378	378
379		-
380	380	Insert the probe inside, method like measure the surface.
381	381
382	382
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.
392	392
393		-1.
394		-11. Calibration
	377	+=== 2.6.3 Maintain Probe ===
395	395
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).
	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.
397	397
398	398
399		-**After stable, user can use below command to calibrate.**
400		-
401		-
402		-|**pH buffer solution**|**AT Command to calibrate**|**Downlink Command**|**Read Cal Value**
403		-|**4.00**|**AT+PHCAL=4**|(((
404		-**0x13 04**
405		-
406		-**Reply with Calibrate payload**
407		-)))|(((
408		-**AT+PHCAL=?**
409		-
410		-**Example 41,61,91**
	398	+
411	411	)))
412		-|**6.86**|**AT+PHCAL=6**|(((
413		-**0x13 06**
414	414
415		-**Reply with Calibrate payload**
416		-)))|**AT+PHCAL=?**
417		-|**9.18**|**AT+PHCAL=9**|(((
418		-**0x13 09**
	401	+== 2.7 Calibration ==
419	419
420		-**Reply with Calibrate payload**
421		-)))|**AT+PHCAL=?**
422		-|**Factory Default**|**AT+PHCAL=15**|(((
423		-**0x13 15**
	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).
424	424
425		-**Reply with Calibrate payload**
426		-)))|(((
427		-**AT+PHCAL=?**
	405	+After stable, user can use below command to calibrate.
428	428
429		-**Example 151**
430		-)))
	407	+[[image:image-20220607144936-3.png]]
431	431
432		-Calibration Payload
433	433
	410	+(% style="color:#037691" %)**Calibration Payload**
	411	+
	412	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
434	434	|(((
435	435	**Size**
436	436
...	...	@@ -445,25 +445,22 @@
445	445
446	446	Calibrate value
447	447	)))|Reserve|(((
448		-[[Message>>path:#Message_Type]]
	427	+[[Message Type>>||anchor="H2.3.6MessageType"]]
449	449
450		-[[Type>>path:#Message_Type]]
451		-
452	452	Always 0x03
453	453	)))
454	454
455	455	User can also send 0x14 downlink command to poll the current calibration payload.
456	456
	434	+[[image:image-20220607145603-4.png]]
457	457
458		-|**Downlink Control Type**|**FPort**|**Type Code**|**Downlink payload size(bytes)**
459		-|Get Calibration Version Info|Any|14|2
460		-
461	461	* Reply to the confirmation package: 14 01
462	462	* Reply to non-confirmed packet: 14 00
463	463
464		-1.
465		-11. Frequency Plans
466	466
	440	+
	441	+Frequency Plans
	442	+
467	467	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.
468	468
469	469	1.

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