Last modified by Mengting Qiu on 2025/02/26 15:04
<
From version < 14.6 >
edited by Xiaoling
on 2022/06/07 14:28
To version < 25.2 >
edited by Xiaoling
on 2022/06/07 14:54
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5 5  
6 6  
7 7  
8 +**Contents:**
8 8  
10 +{{toc/}}
9 9  
10 10  
11 11  
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15 15  
16 16  
17 17  
20 +
21 +
22 +
18 18  = 1. Introduction =
19 19  
20 20  == 1.1 ​What is LoRaWAN Soil pH Sensor ==
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108 108  )))
109 109  
110 110  (((
111 -**Step 1**: Create a device in TTN with the OTAA keys from LSPH01.
116 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.
112 112  )))
113 113  
114 114  (((
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145 145  [[image:1654581517630-991.png]]
146 146  
147 147  
148 -**Step 2**: Power on LSPH01
153 +(% style="color:blue" %)**Step 2**(%%): Power on LSPH01
149 149  
150 150  
151 151  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
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153 153  [[image:image-20220607135918-2.png]]
154 154  
155 155  
156 -**Step 3:** The LSPH01 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
161 +(% style="color:blue" %)**Step 3**(%%)**:** The LSPH01 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
157 157  
158 158  [[image:1654581590132-631.png]]
159 159  
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283 283  
284 284  
285 285  
291 +== 2.5 ​Show Data in DataCake IoT Server ==
286 286  
287 -1.
288 -11. ​Show Data in DataCake IoT Server
289 -
290 290  [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
291 291  
292 292  
293 -**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
296 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
294 294  
295 -**Step 2**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:
298 +(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
296 296  
297 297  
298 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
301 +[[image:1654583683416-869.png]]
299 299  
300 300  
301 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
304 +[[image:1654583694084-878.png]]
302 302  
303 303  
304 -Step 3: Create an account or log in Datacake.
307 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
305 305  
306 -Step 4: Create LSPH01 product.
309 +(% style="color:blue" %)**Step 4**(%%)**: Create LSPH01 product.**
307 307  
308 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
311 +[[image:1654583711590-413.png]]
309 309  
310 310  
311 311  
312 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
315 +[[image:1654583732798-193.png]]
313 313  
314 314  
315 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
318 +[[image:1654583749683-259.png]]
316 316  
317 317  
318 -Step 5: add payload decode
321 +(% style="color:blue" %)**Step 5**(%%)**: add payload decode**
319 319  
320 320  Download Datacake decoder from: [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Decoder/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSNPK01/Decoder/]]
321 321  
322 322  
323 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
326 +[[image:1654583770974-935.png]]
324 324  
325 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
328 +[[image:1654583781517-146.png]]
326 326  
327 327  
328 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
331 +[[image:1654583791351-557.png]]
329 329  
330 330  
331 331  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
332 332  
333 333  
334 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
337 +[[image:1654583805491-713.png]]
335 335  
336 336  
337 337  
341 +== 2.6 Installation and Maintain ==
338 338  
343 +=== 2.6.1 Before measurement ===
339 339  
340 -1.
341 -11. Installation and Maintain
342 -111. Before measurement
343 -
345 +(((
344 344  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. 
347 +)))
345 345  
346 346  
347 -1.
348 -11.
349 -111. Measurement
350 350  
351 -**Measurement the soil surface**
351 +=== 2.6.2 Measurement ===
352 352  
353 353  
354 -[[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.
354 +(% style="color:#4f81bd" %)**Measurement the soil surface:**
355 355  
356 +[[image:1654584128046-287.png]]
356 356  
358 +Choose the proper measuring position. Split the surface soil according to the measured deep.
359 +
357 357  Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
358 358  
359 -
360 360  Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
361 361  
362 -
363 363  Put soil over the probe after insert. And start to measure.
364 364  
365 365  
366 -**Measurement inside soil**
367 +(% style="color:#4f81bd" %)**Measurement inside soil:**
367 367  
368 -
369 -
370 370  Dig a hole with diameter > 20CM.
371 371  
372 -
373 373  Insert the probe inside, method like measure the surface.
374 374  
375 375  
376 -1.
377 -11.
378 -111. Maintain Probe
379 -1111. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
380 -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.
381 -1111. Probe reference electrode is also no strong, need to avoid strong force or hitting.
382 -1111. User should keep reference electrode wet while not use.
383 -1111. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
384 -1111. The probe is IP68 can be put in water.
385 385  
386 -1.
387 -11. Calibration
375 +=== 2.6.3 Maintain Probe ===
388 388  
389 -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).
377 +1. (((
378 +pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
379 +)))
380 +1. (((
381 +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.
382 +)))
383 +1. (((
384 +Probe reference electrode is also no strong, need to avoid strong force or hitting.
385 +)))
386 +1. (((
387 +User should keep reference electrode wet while not use.
388 +)))
389 +1. (((
390 +Avoid the probes to touch oily matter. Which will cause issue in accuracy.
391 +)))
392 +1. (((
393 +The probe is IP68 can be put in water.
390 390  
391 391  
392 -**After stable, user can use below command to calibrate.**
396 +
397 +)))
393 393  
399 +== 2.7 Calibration ==
394 394  
395 -|**pH buffer solution**|**AT Command to calibrate**|**Downlink Command**|**Read Cal Value**
396 -|**4.00**|**AT+PHCAL=4**|(((
397 -**0x13 04**
401 +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).
398 398  
399 -**Reply with Calibrate payload**
400 -)))|(((
401 -**AT+PHCAL=?**
402 402  
403 -**Example 41,61,91**
404 -)))
405 -|**6.86**|**AT+PHCAL=6**|(((
406 -**0x13 06**
404 +(% style="color:#037691" %)**After stable, user can use below command to calibrate.**
407 407  
408 -**Reply with Calibrate payload**
409 -)))|**AT+PHCAL=?**
410 -|**9.18**|**AT+PHCAL=9**|(((
411 -**0x13 09**
406 +[[image:image-20220607144936-3.png]]
412 412  
413 -**Reply with Calibrate payload**
414 -)))|**AT+PHCAL=?**
415 -|**Factory Default**|**AT+PHCAL=15**|(((
416 -**0x13 15**
417 417  
418 -**Reply with Calibrate payload**
419 -)))|(((
420 -**AT+PHCAL=?**
421 421  
422 -**Example 151**
423 -)))
410 +(% style="color:#037691" %)**Calibration Payload**
424 424  
425 -Calibration Payload
426 -
412 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
427 427  |(((
428 428  **Size**
429 429  
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438 438  
439 439  Calibrate value
440 440  )))|Reserve|(((
441 -[[Message>>path:#Message_Type]]
442 -
443 -[[Type>>path:#Message_Type]]
444 -
445 -Always 0x03
427 +[[Message Type Always 0x03>>||anchor="H2.3.6MessageType"]]
446 446  )))
447 447  
448 448  User can also send 0x14 downlink command to poll the current calibration payload.
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