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Version 5.2 by Xiaoling on 2022/06/07 13:43
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18 = 1. Introduction =
19
20 == 1.1 ​What is LoRaWAN Soil pH Sensor ==
21
22 The Dragino LSPH01 is a (% style="color:#4f81bd" %)**LoRaWAN Soil pH Sensor**(%%) for IoT of Agriculture. It is designed to measure the soil PH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof.
23
24 LSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's** (% style="color:#4f81bd" %)pH (%%)**with high accuracy and stable value. The LSPH01 probe can be buried into soil for long time use.
25
26 The LoRa wireless technology used in LSPH01 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
27
28 LSPH01 is powered by (% style="color:#4f81bd" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
29
30 Each LSPH01 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
31
32
33 [[image:1654580186518-415.png]]
34
35
36
37 == ​1.2 Features ==
38
39 * LoRaWAN 1.0.3 Class A
40 * Ultra-low power consumption
41 * Monitor soil pH with temperature compensation.
42 * Monitor soil temperature
43 * Monitor Battery Level
44 * Support pH calibration by end user
45 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
46 * AT Commands to change parameters
47 * Uplink on periodically
48 * Downlink to change configure
49 * IP66 Waterproof Enclosure
50 * IP68 rate for the Sensor Probe
51 * 8500mAh Battery for long term use
52
53
54
55 == 1.3 Probe Specification ==
56
57
58 (% style="color:#4f81bd" %)**Soil pH:**
59
60 * Range: 3 ~~ 10 pH
61 * Resolution: 0.01 pH
62 * Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
63 * Temperature Compensation Range: 0 ~~ 50℃
64 * IP68 Protection
65 * Length: 3.5 meters
66
67 (% style="color:#4f81bd" %)**Soil Temperature:**
68
69 * Range -40℃～85℃
70 * Resolution: 0.1℃
71 * Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
72 * IP68 Protection
73 * Length: 3.5 meters
74
75
76 == 1.4 ​Applications ==
77
78 * Smart Agriculture
79
80
81 == 1.5 Pin mapping and power on ==
82
83 [[image:1654580482666-473.png]][[image:1654580428909-307.png]]
84
85
86
87 = 2. Configure LSPH01 to connect to LoRaWAN network =
88
89 == 2.1 How it works ==
90
91 The LSPH01 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LSPH01. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
92
93
94 In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>path:#_​Using_the_AT]]to set the keys in the LSPH01.
95
96
97 1.
98 11. ​Quick guide to connect to LoRaWAN server (OTAA)
99
100 Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
101
102
103 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
104
105
106 The LG308 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
107
108
109 **Step 1**: Create a device in TTN with the OTAA keys from LSPH01.
110
111 Each LSPH01 is shipped with a sticker with the default device EUI as below:
112
113
114 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
115
116
117
118
119
120 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
121
122
123 **Register the device**
124
125 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
126
127
128 **Add APP EUI and DEV EUI**
129
130
131 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
132
133
134 **Add APP EUI in the application**
135
136
137 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
138
139
140 **Add APP KEY**
141
142 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
143
144
145 **Step 2**: Power on LSPH01
146
147
148 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
149
150
151
152 |(((
153
154 )))
155
156 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
157
158
159
160
161 **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.
162
163
164
165
166 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
167
168
169
170 1.
171 11. ​Uplink Payload
172
173 LSPH01 will uplink payload via LoRaWAN with below payload format: 
174
175
176 Uplink payload includes in total 11 bytes.
177
178
179 Normal uplink payload:
180
181 |(((
182 **Size**
183
184 **(bytes)**
185 )))|**2**|**2**|**2**|**2**|**1**|**1**|**1**
186 |**Value**|[[BAT>>path:#bat]]|(((
187 [[Temperature>>path:#DS18B20]]
188
189 [[( Optional )>>path:#DS18B20]]
190 )))|[[Soil pH>>path:#Soil_Nitrogen]]|[[Soil Temperature>>path:#Soil_Phosphorus]]|(((
191 [[Digital Interrupt>>path:#Int_pin]]
192
193 [[(Optional)>>path:#Int_pin]]
194 )))|Reserve|(((
195 [[Message>>path:#Message_Type]]
196
197 [[Type>>path:#Message_Type]]
198 )))
199
200 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
201
202
203
204 1.
205 11.
206 111. Battery Info
207
208 Check the battery voltage for LSPH01.
209
210 Ex1: 0x0B45 = 2885mV
211
212 Ex2: 0x0B49 = 2889mV
213
214
215 1.
216 11.
217 111. DS18B20 Temperature sensor
218
219 This is optional, user can connect external DS18B20 sensor to the [[+3.3v, 1-wire and GND pin>>path:#DS18B20]] . and this field will report temperature.
220
221
222 **Example**:
223
224 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
225
226 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
227
228
229
230 1.
231 11.
232 111. Soil pH
233
234 Range: 0 ~~ 14 pH
235
236 Example:
237
238 **0x02B7(H) = 695(D) = 6.95pH**
239
240
241 1.
242 11.
243 111. Soil Temperature
244
245 Get Soil Temperature 
246
247
248 **Example**:
249
250 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
251
252 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
253
254
255
256 1.
257 11.
258 111. Interrupt Pin
259
260 This data field shows if this packet is generated by interrupt or not. [[Click here>>path:#Int_mod]] for the hardware and software set up.
261
262
263 Example:
264
265 0x00: Normal uplink packet.
266
267 0x01: Interrupt Uplink Packet.
268
269
270 1.
271 11.
272 111. Message Type
273
274 For a normal uplink payload, the message type is always 0x01.
275
276 Valid Message Type:
277
278
279 |Message Type Code|Description|Payload
280 |0x01|Normal Uplink|[[Normal Uplink Payload>>path:#Normal_Uplink]]
281 |0x02|Reply configures info|[[Configure Info Payload>>path:#Configure_Info_Payload]]
282 |0x03|Reply Calibration Info|[[Calibration Payload>>path:#Calibration_Payload]]
283
284 1.
285 11.
286 111. ​Decode payload in The Things Network
287
288 While using TTN network, you can add the payload format to decode the payload.
289
290
291 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
292
293 The payload decoder function for TTN is here:
294
295 LSPH01 TTN Payload Decoder: [[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/]]
296
297
298 1.
299 11. Uplink Interval
300
301 The LSPH01 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link:
302
303 [[http:~~/~~/wiki.dragino.com/index.pHp?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval]]
304
305
306
307 1.
308 11. ​Show Data in DataCake IoT Server
309
310 [[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:
311
312
313 **Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
314
315 **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:
316
317
318 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
319
320
321 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
322
323
324 Step 3: Create an account or log in Datacake.
325
326 Step 4: Create LSPH01 product.
327
328 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
329
330
331
332 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
333
334
335 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
336
337
338 Step 5: add payload decode
339
340 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/]]
341
342
343 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
344
345 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
346
347
348 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
349
350
351 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
352
353
354 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
355
356
357
358
359
360 1.
361 11. Installation and Maintain
362 111. Before measurement
363
364 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. 
365
366
367 1.
368 11.
369 111. Measurement
370
371 **Measurement the soil surface**
372
373
374 [[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.
375
376
377 Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
378
379
380 Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
381
382
383 Put soil over the probe after insert. And start to measure.
384
385
386 **Measurement inside soil**
387
388
389
390 Dig a hole with diameter > 20CM.
391
392
393 Insert the probe inside, method like measure the surface.
394
395
396 1.
397 11.
398 111. Maintain Probe
399 1111. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
400 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.
401 1111. Probe reference electrode is also no strong, need to avoid strong force or hitting.
402 1111. User should keep reference electrode wet while not use.
403 1111. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
404 1111. The probe is IP68 can be put in water.
405
406
407 1.
408 11. Calibration
409
410 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).
411
412
413 **After stable, user can use below command to calibrate.**
414
415
416 |**pH buffer solution**|**AT Command to calibrate**|**Downlink Command**|**Read Cal Value**
417 |**4.00**|**AT+PHCAL=4**|(((
418 **0x13 04**
419
420 **Reply with Calibrate payload**
421 )))|(((
422 **AT+PHCAL=?**
423
424 **Example 41,61,91**
425 )))
426 |**6.86**|**AT+PHCAL=6**|(((
427 **0x13 06**
428
429 **Reply with Calibrate payload**
430 )))|**AT+PHCAL=?**
431 |**9.18**|**AT+PHCAL=9**|(((
432 **0x13 09**
433
434 **Reply with Calibrate payload**
435 )))|**AT+PHCAL=?**
436 |**Factory Default**|**AT+PHCAL=15**|(((
437 **0x13 15**
438
439 **Reply with Calibrate payload**
440 )))|(((
441 **AT+PHCAL=?**
442
443 **Example 151**
444 )))
445
446 Calibration Payload
447
448 |(((
449 **Size**
450
451 **(bytes)**
452 )))|**1**|**1**|**1**|**7**|**1**
453 |**Value**|(((
454 PH4
455
456 Calibrate value
457 )))|PH6.86 Calibrate value|(((
458 PH9.18
459
460 Calibrate value
461 )))|Reserve|(((
462 [[Message>>path:#Message_Type]]
463
464 [[Type>>path:#Message_Type]]
465
466 Always 0x03
467 )))
468
469 User can also send 0x14 downlink command to poll the current calibration payload.
470
471
472 |**Downlink Control Type**|**FPort**|**Type Code**|**Downlink payload size(bytes)**
473 |Get Calibration Version Info|Any|14|2
474
475 * Reply to the confirmation package: 14 01
476 * Reply to non-confirmed packet: 14 00
477
478 1.
479 11. Frequency Plans
480
481 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.
482
483 1.
484 11.
485 111. EU863-870 (EU868)
486
487 Uplink:
488
489 868.1 - SF7BW125 to SF12BW125
490
491 868.3 - SF7BW125 to SF12BW125 and SF7BW250
492
493 868.5 - SF7BW125 to SF12BW125
494
495 867.1 - SF7BW125 to SF12BW125
496
497 867.3 - SF7BW125 to SF12BW125
498
499 867.5 - SF7BW125 to SF12BW125
500
501 867.7 - SF7BW125 to SF12BW125
502
503 867.9 - SF7BW125 to SF12BW125
504
505 868.8 - FSK
506
507
508 Downlink:
509
510 Uplink channels 1-9 (RX1)
511
512 869.525 - SF9BW125 (RX2 downlink only)
513
514
515 1.
516 11.
517 111. US902-928(US915)
518
519 Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
520
521
522 To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
523
524
525 After Join success, the end node will switch to the correct sub band by:
526
527 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
528 * 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)
529
530 1.
531 11.
532 111. CN470-510 (CN470)
533
534 Used in China, Default use CHE=1
535
536 Uplink:
537
538 486.3 - SF7BW125 to SF12BW125
539
540 486.5 - SF7BW125 to SF12BW125
541
542 486.7 - SF7BW125 to SF12BW125
543
544 486.9 - SF7BW125 to SF12BW125
545
546 487.1 - SF7BW125 to SF12BW125
547
548 487.3 - SF7BW125 to SF12BW125
549
550 487.5 - SF7BW125 to SF12BW125
551
552 487.7 - SF7BW125 to SF12BW125
553
554
555 Downlink:
556
557 506.7 - SF7BW125 to SF12BW125
558
559 506.9 - SF7BW125 to SF12BW125
560
561 507.1 - SF7BW125 to SF12BW125
562
563 507.3 - SF7BW125 to SF12BW125
564
565 507.5 - SF7BW125 to SF12BW125
566
567 507.7 - SF7BW125 to SF12BW125
568
569 507.9 - SF7BW125 to SF12BW125
570
571 508.1 - SF7BW125 to SF12BW125
572
573 505.3 - SF12BW125 (RX2 downlink only)
574
575
576 1.
577 11.
578 111. AU915-928(AU915)
579
580 Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
581
582
583 To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
584
585
586 After Join success, the end node will switch to the correct sub band by:
587
588 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
589 * 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)
590
591 1.
592 11.
593 111. AS920-923 & AS923-925 (AS923)
594
595 **Default Uplink channel:**
596
597 923.2 - SF7BW125 to SF10BW125
598
599 923.4 - SF7BW125 to SF10BW125
600
601
602 **Additional Uplink Channel**:
603
604 (OTAA mode, channel added by JoinAccept message)
605
606 **AS920~~AS923 for Japan, Malaysia, Singapore**:
607
608 922.2 - SF7BW125 to SF10BW125
609
610 922.4 - SF7BW125 to SF10BW125
611
612 922.6 - SF7BW125 to SF10BW125
613
614 922.8 - SF7BW125 to SF10BW125
615
616 923.0 - SF7BW125 to SF10BW125
617
618 922.0 - SF7BW125 to SF10BW125
619
620
621 **AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
622
623 923.6 - SF7BW125 to SF10BW125
624
625 923.8 - SF7BW125 to SF10BW125
626
627 924.0 - SF7BW125 to SF10BW125
628
629 924.2 - SF7BW125 to SF10BW125
630
631 924.4 - SF7BW125 to SF10BW125
632
633 924.6 - SF7BW125 to SF10BW125
634
635
636
637 **Downlink:**
638
639 Uplink channels 1-8 (RX1)
640
641 923.2 - SF10BW125 (RX2)
642
643
644 1.
645 11.
646 111. KR920-923 (KR920)
647
648 Default channel:
649
650 922.1 - SF7BW125 to SF12BW125
651
652 922.3 - SF7BW125 to SF12BW125
653
654 922.5 - SF7BW125 to SF12BW125
655
656
657 Uplink: (OTAA mode, channel added by JoinAccept message)
658
659 922.1 - SF7BW125 to SF12BW125
660
661 922.3 - SF7BW125 to SF12BW125
662
663 922.5 - SF7BW125 to SF12BW125
664
665 922.7 - SF7BW125 to SF12BW125
666
667 922.9 - SF7BW125 to SF12BW125
668
669 923.1 - SF7BW125 to SF12BW125
670
671 923.3 - SF7BW125 to SF12BW125
672
673
674 Downlink:
675
676 Uplink channels 1-7(RX1)
677
678 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
679
680
681 1.
682 11.
683 111. IN865-867 (IN865)
684
685 Uplink:
686
687 865.0625 - SF7BW125 to SF12BW125
688
689 865.4025 - SF7BW125 to SF12BW125
690
691 865.9850 - SF7BW125 to SF12BW125
692
693
694 Downlink:
695
696 Uplink channels 1-3 (RX1)
697
698 866.550 - SF10BW125 (RX2)
699
700
701 1.
702 11. LED Indicator
703
704 The LSPH01 has an internal LED which is to show the status of different state.
705
706
707 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
708 * Blink once when device transmit a packet.
709
710 1.
711 11. ​Firmware Change Log
712
713 **Firmware download link:**
714
715 [[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/]]
716
717
718 **Firmware Upgrade Method:**
719
720 [[http:~~/~~/wiki.dragino.com/index.pHp?title=Firmware_Upgrade_Instruction_for_STM32_base_products#Introduction>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Instruction_for_STM32_base_products#Introduction]]
721
722
723
724
725
726
727 1. Configure LSPH01 via AT Command or LoRaWAN Downlink
728
729 Use can configure LSPH01 via AT Command or LoRaWAN Downlink.
730
731 * AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
732 * LoRaWAN Downlink instruction for different platforms:
733
734 [[http:~~/~~/wiki.dragino.com/index.pHp?title=Main_Page#Use_Note_for_Server>>url:http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server]]
735
736
737 There are two kinds of commands to configure LSPH01, they are:
738
739 * **General Commands**.
740
741 These commands are to configure:
742
743 * General system settings like: uplink interval.
744 * LoRaWAN protocol & radio related command.
745
746 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
747
748 [[http:~~/~~/wiki.dragino.com/index.pHp?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
749
750
751 * **Commands special design for LSPH01**
752
753 These commands only valid for LSPH01, as below:
754
755
756 1.
757 11. Set Transmit Interval Time
758
759 Feature: Change LoRaWAN End Node Transmit Interval.
760
761 **AT Command: AT+TDC**
762
763 |**Command Example**|**Function**|**Response**
764 |AT+TDC=?|Show current transmit Interval|(((
765 30000
766
767 OK
768
769 the interval is 30000ms = 30s
770 )))
771 |AT+TDC=60000|Set Transmit Interval|(((
772 OK
773
774 Set transmit interval to 60000ms = 60 seconds
775 )))
776
777 **Downlink Command: 0x01**
778
779 Format: Command Code (0x01) followed by 3 bytes time value.
780
781 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
782
783 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
784 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
785
786 1.
787 11. Set Interrupt Mode
788
789 Feature, Set Interrupt mode for GPIO_EXIT.
790
791 **AT Command: AT+INTMOD**
792
793 |**Command Example**|**Function**|**Response**
794 |AT+INTMOD=?|Show current interrupt mode|(((
795 0
796
797 OK
798
799 the mode is 0 = No interruption
800 )))
801 |AT+INTMOD=2|(((
802 Set Transmit Interval
803
804 1. (Disable Interrupt),
805 1. (Trigger by rising and falling edge),
806 1. (Trigger by falling edge)
807 1. (Trigger by rising edge)
808 )))|OK
809
810 **Downlink Command: 0x06**
811
812 Format: Command Code (0x06) followed by 3 bytes.
813
814 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
815
816 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
817 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
818
819 1.
820 11. Calibrate Sensor
821
822 Detail See [[Calibration Guide>>path:#Calibration]] for the user of 0x13 and 0x14 downlink commands
823
824
825
826 1.
827 11. Get Firmware Version Info
828
829 Feature: use downlink to get firmware version.
830
831
832 **Downlink Command: 0x26**
833
834
835 |**Downlink Control Type**|**FPort**|**Type Code**|**Downlink payload size(bytes)**
836 |Get Firmware Version Info|Any|26|2
837
838 * Reply to the confirmation package: 26 01
839 * Reply to non-confirmed packet: 26 00
840
841 Device will send an uplink after got this downlink command. With below payload:
842
843 Configures info payload:
844
845 |(((
846 **Size**
847
848 **(bytes)**
849 )))|**1**|**1**|**1**|**1**|**1**|**5**|**1**
850 |**Value**|Software Type|(((
851 Frequency
852
853 Band
854 )))|Sub-band|(((
855 Firmware
856
857 Version
858 )))|Sensor Type|Reserve|(((
859 [[Message>>path:#Message_Type]]
860
861 [[Type>>path:#Message_Type]]
862
863 Always 0x02
864 )))
865
866 **Software Type**: Always 0x03 for LSPH01
867
868
869 **Frequency Band**:
870
871 *0x01: EU868
872
873 *0x02: US915
874
875 *0x03: IN865
876
877 *0x04: AU915
878
879 *0x05: KZ865
880
881 *0x06: RU864
882
883 *0x07: AS923
884
885 *0x08: AS923-1
886
887 *0x09: AS923-2
888
889 *0xa0: AS923-3
890
891
892 **Sub-Band**: value 0x00 ~~ 0x08
893
894
895 **Firmware Version**: 0x0100, Means: v1.0.0 version
896
897
898 **Sensor Type**:
899
900 0x01: LSE01
901
902 0x02: LDDS75
903
904 0x03: LDDS20
905
906 0x04: LLMS01
907
908 0x05: LSPH01
909
910 0x06: LSNPK01
911
912 0x07: LDDS12
913
914
915
916
917
918
919 1. Battery & How to replace
920 11. Battery Type
921
922 LSPH01 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
923
924
925 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
926
927 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
928
929
930 Minimum Working Voltage for the LSPH01:
931
932 LSPH01:  2.45v ~~ 3.6v
933
934
935 1.
936 11. Replace Battery
937
938 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
939
940 And make sure the positive and negative pins match.
941
942
943
944 1.
945 11. Power Consumption Analyze
946
947 Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
948
949
950 Instruction to use as below:
951
952
953 Step 1: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
954
955 [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
956
957
958 Step 2: Open it and choose
959
960 * Product Model
961 * Uplink Interval
962 * Working Mode
963
964 And the Life expectation in difference case will be shown on the right.
965
966 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
967
968
969 The battery related documents as below:
970
971 * [[Battery Dimension>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
972 * [[Lithium-Thionyl Chloride Battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] datasheet
973 * [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
974
975 |(((
976 JST-XH-2P connector
977 )))
978
979 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
980
981
982
983 1.
984 11.
985 111. ​Battery Note
986
987 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
988
989
990 1.
991 11.
992 111. ​Replace the battery
993
994 You can change the battery in the LSPH01.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
995
996
997 The default battery pack of LSPH01 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
998
999
1000
1001
1002
1003
1004 1. Use AT Command
1005 11. Access AT Commands
1006
1007 LSPH01 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LSPH01 for using AT command, as below.
1008
1009 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
1010
1011 Connection:
1012
1013 USB TTL GND <~-~-~-~-> GND
1014
1015 USB TTL TXD <~-~-~-~-> UART_RXD
1016
1017 USB TTL RXD <~-~-~-~-> UART_TXD
1018
1019
1020 In the PC, you need to set the serial baud rate to **9600** to access the serial console for LSPH01. LSPH01 will output system info once power on as below:
1021
1022
1023 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1024
1025 Valid AT Command please check [[Configure Device>>path:#Configure_Device]].
1026
1027
1028
1029
1030 1. FAQ
1031 11. How to change the LoRa Frequency Bands/Region
1032
1033 You can follow the instructions for [[how to upgrade image>>path:#3ygebqi]].
1034 When downloading the images, choose the required image file for download. ​
1035
1036
1037
1038 1. Trouble Shooting
1039 11. AT Commands input doesn’t work
1040
1041 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 **ENTER** while sending out the command. Some serial tool doesn’t send **ENTER** while press the send key, user need to add ENTER in their string.
1042
1043
1044 1. Order Info
1045
1046 Part Number: **LSPH01-XX**
1047
1048
1049 **XX**: The default frequency band
1050
1051 * **AS923**: LoRaWAN AS923 band
1052 * **AU915**: LoRaWAN AU915 band
1053 * **EU433**: LoRaWAN EU433 band
1054 * **EU868**: LoRaWAN EU868 band
1055 * **KR920**: LoRaWAN KR920 band
1056 * **US915**: LoRaWAN US915 band
1057 * **IN865**: LoRaWAN IN865 band
1058 * **CN470**: LoRaWAN CN470 band
1059
1060 1. ​Packing Info
1061
1062 **Package Includes**:
1063
1064 * LSPH01 LoRaWAN Soil Ph Sensor x 1
1065
1066 **Dimension and weight**:
1067
1068 * Device Size: cm
1069 * Device Weight: g
1070 * Package Size / pcs : cm
1071 * Weight / pcs : g
1072
1073 = 10. ​Support =
1074
1075 * 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.
1076 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1077
1078 [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
1079
1080