Version 34.18 by Xiaoling on 2022/06/07 16:25
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1 (% style="text-align:center" %)
2 [[image:1654574317295-380.png||height="621" width="576"]]
3
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6
7
8 **Contents:**
9
10 {{toc/}}
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20
21
22
23 = 1. Introduction =
24
25 == 1.1 ​What is LoRaWAN Soil pH Sensor ==
26
27 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.
28
29 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.
30
31 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.
32
33 LSPH01 is powered by (% style="color:#4f81bd" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
34
35 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.
36
37
38 [[image:1654580186518-415.png]]
39
40
41
42 == ​1.2 Features ==
43
44 * LoRaWAN 1.0.3 Class A
45 * Ultra-low power consumption
46 * Monitor soil pH with temperature compensation.
47 * Monitor soil temperature
48 * Monitor Battery Level
49 * Support pH calibration by end user
50 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
51 * AT Commands to change parameters
52 * Uplink on periodically
53 * Downlink to change configure
54 * IP66 Waterproof Enclosure
55 * IP68 rate for the Sensor Probe
56 * 8500mAh Battery for long term use
57
58
59
60
61 == 1.3 Probe Specification ==
62
63
64 (% style="color:#4f81bd" %)**Soil pH:**
65
66 * Range: 3 ~~ 10 pH
67 * Resolution: 0.01 pH
68 * Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
69 * Temperature Compensation Range: 0 ~~ 50℃
70 * IP68 Protection
71 * Length: 3.5 meters
72
73 (% style="color:#4f81bd" %)**Soil Temperature:**
74
75 * Range -40℃～85℃
76 * Resolution: 0.1℃
77 * Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
78 * IP68 Protection
79 * Length: 3.5 meters
80
81
82
83 == 1.4 ​Applications ==
84
85 * Smart Agriculture
86
87
88
89 == 1.5 Pin mapping and power on ==
90
91 [[image:1654580482666-473.png]]
92
93
94
95 = 2. Configure LSPH01 to connect to LoRaWAN network =
96
97 == 2.1 How it works ==
98
99 (((
100 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.
101 )))
102
103 (((
104 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 >>||anchor="H5.UseATCommand"]]to set the keys in the LSPH01.
105 )))
106
107
108 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
109
110 (((
111 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.
112 )))
113
114 (((
115
116 )))
117
118 (((
119 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.
120 )))
121
122 (((
123 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.
124 )))
125
126 (((
127 Each LSPH01 is shipped with a sticker with the default device EUI as below:
128 )))
129
130
131 [[image:image-20220607135531-1.jpeg]]
132
133
134 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
135
136
137 **Register the device**
138
139 [[image:1654581442672-605.png]]
140
141
142
143 **Add APP EUI and DEV EUI**
144
145 [[image:1654581465717-368.png]]
146
147
148
149 **Add APP EUI in the application**
150
151 [[image:1654581493871-516.png]]
152
153
154
155 **Add APP KEY**
156
157 [[image:1654581517630-991.png]]
158
159
160 (% style="color:blue" %)**Step 2**(%%): Power on LSPH01
161
162
163 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
164
165 [[image:image-20220607135918-2.png]]
166
167
168 (% 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.
169
170 [[image:1654581590132-631.png]]
171
172
173
174 == 2.3 ​Uplink Payload ==
175
176 LSPH01 will uplink payload via LoRaWAN with below payload format: 
177
178 Uplink payload includes in total 11 bytes.
179
180 Normal uplink payload:
181
182 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
183 |(((
184 **Size**
185
186 **(bytes)**
187 )))|**2**|**2**|**2**|**2**|**1**|**1**|**1**
188 |**Value**|[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(((
189 [[Temperature>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
190
191 [[(Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
192 )))|[[Soil pH>>||anchor="H2.3.3SoilpH"]]|[[Soil Temperature>>||anchor="H2.3.4SoilTemperature"]]|(((
193 [[Digital Interrupt (Optional)>>||anchor="H2.3.5InterruptPin"]]
194 )))|Reserve|(((
195 [[Message Type>>||anchor="H2.3.6MessageType"]]
196 )))
197
198 [[image:1654581735133-458.png]]
199
200
201
202 === 2.3.1 Battery Info ===
203
204
205 Check the battery voltage for LSPH01.
206
207 Ex1: 0x0B45 = 2885mV
208
209 Ex2: 0x0B49 = 2889mV
210
211
212
213 === 2.3.2 DS18B20 Temperature sensor ===
214
215 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
216
217
218 **Example**:
219
220 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
221
222 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
223
224
225
226 === 2.3.3 Soil pH ===
227
228 Range: 0 ~~ 14 pH
229
230 **Example:**
231
232 (% style="color:#037691" %)** 0x02B7(H) = 695(D) = 6.95pH**
233
234
235
236 === 2.3.4 Soil Temperature ===
237
238 Get Soil Temperature 
239
240
241 **Example**:
242
243 If payload is: **0105H**:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
244
245 If payload is: **FF3FH** :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
246
247
248
249 === 2.3.5 Interrupt Pin ===
250
251 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2SetInterruptMode"]] for the hardware and software set up.
252
253
254 **Example:**
255
256 0x00: Normal uplink packet.
257
258 0x01: Interrupt Uplink Packet.
259
260
261
262 === 2.3.6 Message Type ===
263
264 For a normal uplink payload, the message type is always 0x01.
265
266 Valid Message Type:
267
268
269 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
270 |**Message Type Code**|**Description**|**Payload**
271 |0x01|Normal Uplink|[[Normal Uplink Payload>>||anchor="H2.3Uplink Payload"]]
272 |0x02|Reply configures info|[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]]
273 |0x03|Reply Calibration Info|[[Calibration Payload>>||anchor="H2.7Calibration"]]
274
275 === 2.3.7 Decode payload in The Things Network ===
276
277 While using TTN network, you can add the payload format to decode the payload.
278
279
280 [[image:1654582541848-906.png]]
281
282 (((
283 The payload decoder function for TTN is here:
284 )))
285
286 (((
287 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/]]
288 )))
289
290
291
292 == 2.4 Uplink Interval ==
293
294 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: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
295
296
297
298 == 2.5 ​Show Data in DataCake IoT Server ==
299
300 [[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:
301
302
303 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
304
305 (% 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:**
306
307
308 [[image:1654583683416-869.png]]
309
310
311 [[image:1654583694084-878.png]]
312
313
314 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
315
316 (% style="color:blue" %)**Step 4**(%%)**: Create LSPH01 product.**
317
318 [[image:1654583711590-413.png]]
319
320
321
322 [[image:1654583732798-193.png]]
323
324
325 [[image:1654583749683-259.png]]
326
327
328 (% style="color:blue" %)**Step 5**(%%)**: add payload decode**
329
330 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/]]
331
332
333 [[image:1654583770974-935.png]]
334
335 [[image:1654583781517-146.png]]
336
337
338 [[image:1654583791351-557.png]]
339
340
341 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
342
343
344 [[image:1654583805491-713.png]]
345
346
347
348 == 2.6 Installation and Maintain ==
349
350 === 2.6.1 Before measurement ===
351
352 (((
353 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. 
354 )))
355
356
357
358 === 2.6.2 Measurement ===
359
360
361 (% style="color:#4f81bd" %)**Measurement the soil surface:**
362
363 [[image:1654584128046-287.png]]
364
365 Choose the proper measuring position. Split the surface soil according to the measured deep.
366
367 Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
368
369 Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
370
371 Put soil over the probe after insert. And start to measure.
372
373
374 (% style="color:#4f81bd" %)**Measurement inside soil:**
375
376 Dig a hole with diameter > 20CM.
377
378 Insert the probe inside, method like measure the surface.
379
380
381
382 === 2.6.3 Maintain Probe ===
383
384 1. (((
385 pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
386 )))
387 1. (((
388 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.
389 )))
390 1. (((
391 Probe reference electrode is also no strong, need to avoid strong force or hitting.
392 )))
393 1. (((
394 User should keep reference electrode wet while not use.
395 )))
396 1. (((
397 Avoid the probes to touch oily matter. Which will cause issue in accuracy.
398 )))
399 1. (((
400 The probe is IP68 can be put in water.
401
402
403
404 )))
405
406 == 2.7 Calibration ==
407
408 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).
409
410 After stable, user can use below command to calibrate.
411
412 [[image:image-20220607144936-3.png]]
413
414
415 (% style="color:#037691" %)**Calibration Payload**
416
417 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
418 |(((
419 **Size**
420
421 **(bytes)**
422 )))|**1**|**1**|**1**|**7**|**1**
423 |**Value**|(((
424 PH4
425
426 Calibrate value
427 )))|PH6.86 Calibrate value|(((
428 PH9.18
429
430 Calibrate value
431 )))|Reserve|(((
432 [[Message Type>>||anchor="H2.3.6MessageType"]]
433
434 Always 0x03
435 )))
436
437 User can also send 0x14 downlink command to poll the current calibration payload.
438
439 [[image:image-20220607145603-4.png]]
440
441 * Reply to the confirmation package: 14 01
442 * Reply to non-confirmed packet: 14 00
443
444 == 2.8 Frequency Plans ==
445
446 (((
447 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.
448 )))
449
450
451 === 2.8.1 EU863-870 (EU868) ===
452
453 (% style="color:blue" %)**Uplink:**
454
455 868.1 - SF7BW125 to SF12BW125
456
457 868.3 - SF7BW125 to SF12BW125 and SF7BW250
458
459 868.5 - SF7BW125 to SF12BW125
460
461 867.1 - SF7BW125 to SF12BW125
462
463 867.3 - SF7BW125 to SF12BW125
464
465 867.5 - SF7BW125 to SF12BW125
466
467 867.7 - SF7BW125 to SF12BW125
468
469 867.9 - SF7BW125 to SF12BW125
470
471 868.8 - FSK
472
473
474 (% style="color:blue" %)**Downlink:**
475
476 Uplink channels 1-9 (RX1)
477
478 869.525 - SF9BW125 (RX2 downlink only)
479
480
481
482 === 2.8.2 US902-928(US915) ===
483
484 (((
485 Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
486 )))
487
488 (((
489 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.
490 )))
491
492 (((
493 After Join success, the end node will switch to the correct sub band by:
494 )))
495
496 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
497 * 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)
498
499
500 === 2.8.3 CN470-510 (CN470) ===
501
502 Used in China, Default use CHE=1
503
504 (% style="color:blue" %)**Uplink:**
505
506 486.3 - SF7BW125 to SF12BW125
507
508 486.5 - SF7BW125 to SF12BW125
509
510 486.7 - SF7BW125 to SF12BW125
511
512 486.9 - SF7BW125 to SF12BW125
513
514 487.1 - SF7BW125 to SF12BW125
515
516 487.3 - SF7BW125 to SF12BW125
517
518 487.5 - SF7BW125 to SF12BW125
519
520 487.7 - SF7BW125 to SF12BW125
521
522
523 (% style="color:blue" %)**Downlink:**
524
525 506.7 - SF7BW125 to SF12BW125
526
527 506.9 - SF7BW125 to SF12BW125
528
529 507.1 - SF7BW125 to SF12BW125
530
531 507.3 - SF7BW125 to SF12BW125
532
533 507.5 - SF7BW125 to SF12BW125
534
535 507.7 - SF7BW125 to SF12BW125
536
537 507.9 - SF7BW125 to SF12BW125
538
539 508.1 - SF7BW125 to SF12BW125
540
541 505.3 - SF12BW125 (RX2 downlink only)
542
543
544
545 === 2.8.4 AU915-928(AU915) ===
546
547 (((
548 Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
549 )))
550
551 (((
552 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.
553 )))
554
555 (((
556
557 )))
558
559 (((
560 After Join success, the end node will switch to the correct sub band by:
561 )))
562
563 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
564 * 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)
565
566 === 2.8.5 AS920-923 & AS923-925 (AS923) ===
567
568 (% style="color:blue" %)**Default Uplink channel:**
569
570 923.2 - SF7BW125 to SF10BW125
571
572 923.4 - SF7BW125 to SF10BW125
573
574
575 (% style="color:blue" %)**Additional Uplink Channel**:
576
577 (OTAA mode, channel added by JoinAccept message)
578
579
580 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
581
582 922.2 - SF7BW125 to SF10BW125
583
584 922.4 - SF7BW125 to SF10BW125
585
586 922.6 - SF7BW125 to SF10BW125
587
588 922.8 - SF7BW125 to SF10BW125
589
590 923.0 - SF7BW125 to SF10BW125
591
592 922.0 - SF7BW125 to SF10BW125
593
594
595 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
596
597 923.6 - SF7BW125 to SF10BW125
598
599 923.8 - SF7BW125 to SF10BW125
600
601 924.0 - SF7BW125 to SF10BW125
602
603 924.2 - SF7BW125 to SF10BW125
604
605 924.4 - SF7BW125 to SF10BW125
606
607 924.6 - SF7BW125 to SF10BW125
608
609
610 (% style="color:blue" %)**Downlink:**
611
612 Uplink channels 1-8 (RX1)
613
614 923.2 - SF10BW125 (RX2)
615
616
617
618 === 2.8.6 KR920-923 (KR920) ===
619
620 (% style="color:blue" %)**Default channel:**
621
622 922.1 - SF7BW125 to SF12BW125
623
624 922.3 - SF7BW125 to SF12BW125
625
626 922.5 - SF7BW125 to SF12BW125
627
628
629 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
630
631 922.1 - SF7BW125 to SF12BW125
632
633 922.3 - SF7BW125 to SF12BW125
634
635 922.5 - SF7BW125 to SF12BW125
636
637 922.7 - SF7BW125 to SF12BW125
638
639 922.9 - SF7BW125 to SF12BW125
640
641 923.1 - SF7BW125 to SF12BW125
642
643 923.3 - SF7BW125 to SF12BW125
644
645
646 (% style="color:blue" %)**Downlink:**
647
648 Uplink channels 1-7(RX1)
649
650 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
651
652
653 === 2.8.7 IN865-867 (IN865) ===
654
655 (% style="color:blue" %)**Uplink:**
656
657 865.0625 - SF7BW125 to SF12BW125
658
659 865.4025 - SF7BW125 to SF12BW125
660
661 865.9850 - SF7BW125 to SF12BW125
662
663
664 (% style="color:blue" %)**Downlink:**
665
666 Uplink channels 1-3 (RX1)
667
668 866.550 - SF10BW125 (RX2)
669
670
671
672 == 2.9 LED Indicator ==
673
674 The LSPH01 has an internal LED which is to show the status of different state.
675
676 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
677 * Blink once when device transmit a packet.
678
679
680
681
682 == 2.10 ​Firmware Change Log ==
683
684
685 **Firmware download link:**
686
687 [[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/]]
688
689
690 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
691
692
693
694 = 3. Configure LSPH01 via AT Command or LoRaWAN Downlink =
695
696 Use can configure LSPH01 via AT Command or LoRaWAN Downlink.
697
698 * AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
699 * LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
700
701 There are two kinds of commands to configure LSPH01, they are:
702
703 * (% style="color:#4f81bd" %)** General Commands**.
704
705 These commands are to configure:
706
707 * General system settings like: uplink interval.
708 * LoRaWAN protocol & radio related command.
709
710 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:[[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
711
712
713 * (% style="color:#4f81bd" %)** Commands special design for LSPH01**
714
715 These commands only valid for LSPH01, as below:
716
717
718
719 == 3.1 Set Transmit Interval Time ==
720
721 Feature: Change LoRaWAN End Node Transmit Interval.
722
723 (% style="color:#037691" %)**AT Command: AT+TDC**
724
725
726 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:710px" %)
727 |(% style="width:154px" %)**Command Example**|(% style="width:223px" %)**Function**|(% style="width:330px" %)**Response**
728 |(% style="width:154px" %)AT+TDC=?|(% style="width:223px" %)Show current transmit Interval|(% style="width:330px" %)(((
729 30000
730
731 OK
732
733 the interval is 30000ms = 30s
734 )))
735 |(% style="width:154px" %)AT+TDC=60000|(% style="width:223px" %)Set Transmit Interval|(% style="width:330px" %)(((
736 OK
737
738 Set transmit interval to 60000ms = 60 seconds
739 )))
740
741 (% style="color:#037691" %)**Downlink Command: 0x01**
742
743 Format: Command Code (0x01) followed by 3 bytes time value.
744
745 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
746
747 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
748 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
749
750
751 == 3.2 Set Interrupt Mode ==
752
753 Feature, Set Interrupt mode for GPIO_EXIT.
754
755 (% style="color:#037691" %)**AT Command: AT+INTMOD**
756
757 [[image:image-20220607153759-6.png]]
758
759
760 (% style="color:#037691" %)**Downlink Command: 0x06**
761
762 Format: Command Code (0x06) followed by 3 bytes.
763
764 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
765
766 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
767 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
768
769
770 == 3.3 Calibrate Sensor ==
771
772 Detail See [[Calibration Guide>>||anchor="2.7Calibration"]] for the user of 0x13 and 0x14 downlink commands
773
774
775
776 == 3.4 Get Firmware Version Info ==
777
778 Feature: use downlink to get firmware version.
779
780 (% style="color:#037691" %)**Downlink Command: 0x26**
781
782 [[image:image-20220607154718-7.png]]
783
784 * Reply to the confirmation package: 26 01
785 * Reply to non-confirmed packet: 26 00
786
787
788
789 Device will send an uplink after got this downlink command. With below payload:
790
791 Configures info payload:
792
793 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
794 |=(((
795 **Size(bytes)**
796 )))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
797 |**Value**|Software Type|(((
798 Frequency
799
800 Band
801 )))|Sub-band|(((
802 Firmware
803
804 Version
805 )))|Sensor Type|Reserve|(((
806 [[Message Type>>||anchor="H2.3.6MessageType"]]
807 Always 0x02
808 )))
809
810 **Software Type**: Always 0x03 for LSPH01
811
812
813 **Frequency Band**:
814
815 *0x01: EU868
816
817 *0x02: US915
818
819 *0x03: IN865
820
821 *0x04: AU915
822
823 *0x05: KZ865
824
825 *0x06: RU864
826
827 *0x07: AS923
828
829 *0x08: AS923-1
830
831 *0x09: AS923-2
832
833 *0xa0: AS923-3
834
835
836 **Sub-Band**: value 0x00 ~~ 0x08
837
838
839 **Firmware Version**: 0x0100, Means: v1.0.0 version
840
841
842 **Sensor Type**:
843
844 0x01: LSE01
845
846 0x02: LDDS75
847
848 0x03: LDDS20
849
850 0x04: LLMS01
851
852 0x05: LSPH01
853
854 0x06: LSNPK01
855
856 0x07: LDDS12
857
858
859
860 = 4. Battery & How to replace =
861
862 == 4.1 Battery Type ==
863
864 (((
865 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.
866 )))
867
868 (((
869 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
870 )))
871
872 [[image:1654588469844-778.png]]
873
874
875 Minimum Working Voltage for the LSPH01:
876
877 LSPH01:  2.45v ~~ 3.6v
878
879
880
881 == 4.2 Replace Battery ==
882
883 (((
884 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
885 )))
886
887 (((
888 And make sure the positive and negative pins match.
889 )))
890
891
892
893 == 4.3 Power Consumption Analyze ==
894
895 (((
896 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.
897 )))
898
899 (((
900 Instruction to use as below:
901 )))
902
903
904 **Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
905
906 [[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/]]
907
908
909 **Step 2**: Open it and choose
910
911 * Product Model
912 * Uplink Interval
913 * Working Mode
914
915 And the Life expectation in difference case will be shown on the right.
916
917 [[image:1654588577573-122.png]]
918
919
920 The battery related documents as below:
921
922 * (((
923 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
924 )))
925 * (((
926 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
927 )))
928 * (((
929 [[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]]
930 )))
931
932 [[image:image-20220607155856-8.png]]
933
934
935
936 === 4.3.1 ​Battery Note ===
937
938 (((
939 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.
940 )))
941
942
943
944 === ​4.3.2 Replace the battery ===
945
946 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.
947
948 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)
949
950
951
952 = 5. Use AT Command =
953
954 == 5.1 Access AT Commands ==
955
956 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.
957
958 [[image:1654589001411-343.png]]
959
960 **Connection:**
961
962 (% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
963
964 (% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
965
966 (% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
967
968
969 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSPH01. LSPH01 will output system info once power on as below:
970
971
972 [[image:1654589062541-567.png]]
973
974 Valid AT Command please check [[Configure Device>>path:#Configure_Device]].
975
976
977
978 = 6. FAQ =
979
980 == 6.1 How to change the LoRa Frequency Bands/Region ==
981
982 You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]].
983 When downloading the images, choose the required image file for download. ​
984
985
986
987 = 7. Trouble Shooting =
988
989 == 7.1 AT Commands input doesn’t work ==
990
991 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 (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
992
993
994
995 = 8. Order Info =
996
997 Part Number: (% style="color:blue" %)**LSPH01-XX**
998
999
1000 (% style="color:blue" %)**XX**(%%): The default frequency band
1001
1002 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1003 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1004 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1005 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1006 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1007 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1008 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1009 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1010
1011
1012 = 9. ​Packing Info =
1013
1014
1015 **Package Includes**:
1016
1017 * LSPH01 LoRaWAN Soil Ph Sensor x 1
1018
1019 **Dimension and weight**:
1020
1021 * Device Size: cm
1022 * Device Weight: g
1023 * Package Size / pcs : cm
1024 * Weight / pcs : g
1025
1026
1027
1028 = 10. ​Support =
1029
1030 * 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.
1031 * 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 [[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]].
1032
1033

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