Version 34.26 by Xiaoling on 2022/06/07 16:40
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1 (% style="text-align:center" %)
2 [[image:1654574317295-380.png||height="621" width="576"]]
3
4
5
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 == 1.3 Probe Specification ==
61
62
63 (% style="color:#4f81bd" %)**Soil pH:**
64
65 * Range: 3 ~~ 10 pH
66 * Resolution: 0.01 pH
67 * Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
68 * Temperature Compensation Range: 0 ~~ 50℃
69 * IP68 Protection
70 * Length: 3.5 meters
71
72 (% style="color:#4f81bd" %)**Soil Temperature:**
73
74 * Range -40℃～85℃
75 * Resolution: 0.1℃
76 * Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
77 * IP68 Protection
78 * Length: 3.5 meters
79
80
81 == 1.4 ​Applications ==
82
83 * Smart Agriculture
84
85
86 == 1.5 Pin mapping and power on ==
87
88 [[image:1654580482666-473.png]]
89
90
91
92 = 2. Configure LSPH01 to connect to LoRaWAN network =
93
94 == 2.1 How it works ==
95
96 (((
97 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.
98 )))
99
100 (((
101 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.
102 )))
103
104
105 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
106
107 (((
108 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.
109 )))
110
111 (((
112
113 )))
114
115 (((
116 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.
117 )))
118
119 (((
120 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.
121 )))
122
123 (((
124 Each LSPH01 is shipped with a sticker with the default device EUI as below:
125 )))
126
127
128 [[image:image-20220607135531-1.jpeg]]
129
130
131 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
132
133
134 **Register the device**
135
136 [[image:1654581442672-605.png]]
137
138
139
140 **Add APP EUI and DEV EUI**
141
142 [[image:1654581465717-368.png]]
143
144
145
146 **Add APP EUI in the application**
147
148 [[image:1654581493871-516.png]]
149
150
151
152 **Add APP KEY**
153
154 [[image:1654581517630-991.png]]
155
156
157 (% style="color:blue" %)**Step 2**(%%): Power on LSPH01
158
159
160 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
161
162 [[image:image-20220607135918-2.png]]
163
164
165 (% 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.
166
167 [[image:1654581590132-631.png]]
168
169
170
171 == 2.3 ​Uplink Payload ==
172
173 LSPH01 will uplink payload via LoRaWAN with below payload format: 
174
175 Uplink payload includes in total 11 bytes.
176
177 Normal uplink payload:
178
179 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
180 |(((
181 **Size**
182
183 **(bytes)**
184 )))|**2**|**2**|**2**|**2**|**1**|**1**|**1**
185 |**Value**|[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(((
186 [[Temperature>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
187
188 [[(Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
189 )))|[[Soil pH>>||anchor="H2.3.3SoilpH"]]|[[Soil Temperature>>||anchor="H2.3.4SoilTemperature"]]|(((
190 [[Digital Interrupt (Optional)>>||anchor="H2.3.5InterruptPin"]]
191 )))|Reserve|(((
192 [[Message Type>>||anchor="H2.3.6MessageType"]]
193 )))
194
195 [[image:1654581735133-458.png]]
196
197
198
199 === 2.3.1 Battery Info ===
200
201
202 Check the battery voltage for LSPH01.
203
204 Ex1: 0x0B45 = 2885mV
205
206 Ex2: 0x0B49 = 2889mV
207
208
209
210 === 2.3.2 DS18B20 Temperature sensor ===
211
212 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
213
214
215 **Example**:
216
217 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
218
219 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
220
221
222
223 === 2.3.3 Soil pH ===
224
225 Range: 0 ~~ 14 pH
226
227 **Example:**
228
229 (% style="color:#037691" %)** 0x02B7(H) = 695(D) = 6.95pH**
230
231
232
233 === 2.3.4 Soil Temperature ===
234
235 Get Soil Temperature 
236
237
238 **Example**:
239
240 If payload is: **0105H**:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
241
242 If payload is: **FF3FH** :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
243
244
245
246 === 2.3.5 Interrupt Pin ===
247
248 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.
249
250
251 **Example:**
252
253 0x00: Normal uplink packet.
254
255 0x01: Interrupt Uplink Packet.
256
257
258
259 === 2.3.6 Message Type ===
260
261 For a normal uplink payload, the message type is always 0x01.
262
263 Valid Message Type:
264
265
266 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
267 |**Message Type Code**|**Description**|**Payload**
268 |0x01|Normal Uplink|[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
269 |0x02|Reply configures info|[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]]
270 |0x03|Reply Calibration Info|[[Calibration Payload>>||anchor="H2.7Calibration"]]
271
272
273
274 === 2.3.7 Decode payload in The Things Network ===
275
276 While using TTN network, you can add the payload format to decode the payload.
277
278
279 [[image:1654582541848-906.png]]
280
281 (((
282 The payload decoder function for TTN is here:
283 )))
284
285 (((
286 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/]]
287 )))
288
289
290
291 == 2.4 Uplink Interval ==
292
293 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"]]
294
295
296
297 == 2.5 ​Show Data in DataCake IoT Server ==
298
299 [[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:
300
301
302 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
303
304 (% 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:**
305
306
307 [[image:1654583683416-869.png]]
308
309
310 [[image:1654583694084-878.png]]
311
312
313 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
314
315 (% style="color:blue" %)**Step 4**(%%)**: Create LSPH01 product.**
316
317 [[image:1654583711590-413.png]]
318
319
320
321 [[image:1654583732798-193.png]]
322
323
324 [[image:1654583749683-259.png]]
325
326
327 (% style="color:blue" %)**Step 5**(%%)**: add payload decode**
328
329 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/]]
330
331
332 [[image:1654583770974-935.png]]
333
334 [[image:1654583781517-146.png]]
335
336
337 [[image:1654583791351-557.png]]
338
339
340 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
341
342
343 [[image:1654583805491-713.png]]
344
345
346
347 == 2.6 Installation and Maintain ==
348
349 === 2.6.1 Before measurement ===
350
351 (((
352 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. 
353 )))
354
355
356
357 === 2.6.2 Measurement ===
358
359
360 (% style="color:#4f81bd" %)**Measurement the soil surface:**
361
362 [[image:1654584128046-287.png]]
363
364 Choose the proper measuring position. Split the surface soil according to the measured deep.
365
366 Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
367
368 Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
369
370 Put soil over the probe after insert. And start to measure.
371
372
373 (% style="color:#4f81bd" %)**Measurement inside soil:**
374
375 Dig a hole with diameter > 20CM.
376
377 Insert the probe inside, method like measure the surface.
378
379
380
381 === 2.6.3 Maintain Probe ===
382
383 1. (((
384 pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
385 )))
386 1. (((
387 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 )))
389 1. (((
390 Probe reference electrode is also no strong, need to avoid strong force or hitting.
391 )))
392 1. (((
393 User should keep reference electrode wet while not use.
394 )))
395 1. (((
396 Avoid the probes to touch oily matter. Which will cause issue in accuracy.
397 )))
398 1. (((
399 The probe is IP68 can be put in water.
400
401
402
403 )))
404
405 == 2.7 Calibration ==
406
407 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).
408
409 After stable, user can use below command to calibrate.
410
411 [[image:image-20220607144936-3.png]]
412
413
414 (% style="color:#037691" %)**Calibration Payload**
415
416 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
417 |(((
418 **Size**
419
420 **(bytes)**
421 )))|**1**|**1**|**1**|**7**|**1**
422 |**Value**|(((
423 PH4
424
425 Calibrate value
426 )))|PH6.86 Calibrate value|(((
427 PH9.18
428
429 Calibrate value
430 )))|Reserve|(((
431 [[Message Type>>||anchor="H2.3.6MessageType"]]
432
433 Always 0x03
434 )))
435
436 User can also send 0x14 downlink command to poll the current calibration payload.
437
438 [[image:image-20220607145603-4.png]]
439
440 * Reply to the confirmation package: 14 01
441 * Reply to non-confirmed packet: 14 00
442
443
444
445 == 2.8 Frequency Plans ==
446
447 (((
448 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.
449 )))
450
451
452 === 2.8.1 EU863-870 (EU868) ===
453
454 (% style="color:blue" %)**Uplink:**
455
456 868.1 - SF7BW125 to SF12BW125
457
458 868.3 - SF7BW125 to SF12BW125 and SF7BW250
459
460 868.5 - SF7BW125 to SF12BW125
461
462 867.1 - SF7BW125 to SF12BW125
463
464 867.3 - SF7BW125 to SF12BW125
465
466 867.5 - SF7BW125 to SF12BW125
467
468 867.7 - SF7BW125 to SF12BW125
469
470 867.9 - SF7BW125 to SF12BW125
471
472 868.8 - FSK
473
474
475 (% style="color:blue" %)**Downlink:**
476
477 Uplink channels 1-9 (RX1)
478
479 869.525 - SF9BW125 (RX2 downlink only)
480
481
482
483 === 2.8.2 US902-928(US915) ===
484
485 (((
486 Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
487 )))
488
489 (((
490 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.
491 )))
492
493 (((
494 After Join success, the end node will switch to the correct sub band by:
495 )))
496
497 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
498 * 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)
499
500
501
502 === 2.8.3 CN470-510 (CN470) ===
503
504 Used in China, Default use CHE=1
505
506 (% style="color:blue" %)**Uplink:**
507
508 486.3 - SF7BW125 to SF12BW125
509
510 486.5 - SF7BW125 to SF12BW125
511
512 486.7 - SF7BW125 to SF12BW125
513
514 486.9 - SF7BW125 to SF12BW125
515
516 487.1 - SF7BW125 to SF12BW125
517
518 487.3 - SF7BW125 to SF12BW125
519
520 487.5 - SF7BW125 to SF12BW125
521
522 487.7 - SF7BW125 to SF12BW125
523
524
525 (% style="color:blue" %)**Downlink:**
526
527 506.7 - SF7BW125 to SF12BW125
528
529 506.9 - SF7BW125 to SF12BW125
530
531 507.1 - SF7BW125 to SF12BW125
532
533 507.3 - SF7BW125 to SF12BW125
534
535 507.5 - SF7BW125 to SF12BW125
536
537 507.7 - SF7BW125 to SF12BW125
538
539 507.9 - SF7BW125 to SF12BW125
540
541 508.1 - SF7BW125 to SF12BW125
542
543 505.3 - SF12BW125 (RX2 downlink only)
544
545
546
547 === 2.8.4 AU915-928(AU915) ===
548
549 (((
550 Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
551 )))
552
553 (((
554 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.
555 )))
556
557 (((
558
559 )))
560
561 (((
562 After Join success, the end node will switch to the correct sub band by:
563 )))
564
565 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
566 * 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)
567
568
569
570 === 2.8.5 AS920-923 & AS923-925 (AS923) ===
571
572 (% style="color:blue" %)**Default Uplink channel:**
573
574 923.2 - SF7BW125 to SF10BW125
575
576 923.4 - SF7BW125 to SF10BW125
577
578
579 (% style="color:blue" %)**Additional Uplink Channel**:
580
581 (OTAA mode, channel added by JoinAccept message)
582
583
584 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
585
586 922.2 - SF7BW125 to SF10BW125
587
588 922.4 - SF7BW125 to SF10BW125
589
590 922.6 - SF7BW125 to SF10BW125
591
592 922.8 - SF7BW125 to SF10BW125
593
594 923.0 - SF7BW125 to SF10BW125
595
596 922.0 - SF7BW125 to SF10BW125
597
598
599 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
600
601 923.6 - SF7BW125 to SF10BW125
602
603 923.8 - SF7BW125 to SF10BW125
604
605 924.0 - SF7BW125 to SF10BW125
606
607 924.2 - SF7BW125 to SF10BW125
608
609 924.4 - SF7BW125 to SF10BW125
610
611 924.6 - SF7BW125 to SF10BW125
612
613
614 (% style="color:blue" %)**Downlink:**
615
616 Uplink channels 1-8 (RX1)
617
618 923.2 - SF10BW125 (RX2)
619
620
621
622 === 2.8.6 KR920-923 (KR920) ===
623
624 (% style="color:blue" %)**Default channel:**
625
626 922.1 - SF7BW125 to SF12BW125
627
628 922.3 - SF7BW125 to SF12BW125
629
630 922.5 - SF7BW125 to SF12BW125
631
632
633 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
634
635 922.1 - SF7BW125 to SF12BW125
636
637 922.3 - SF7BW125 to SF12BW125
638
639 922.5 - SF7BW125 to SF12BW125
640
641 922.7 - SF7BW125 to SF12BW125
642
643 922.9 - SF7BW125 to SF12BW125
644
645 923.1 - SF7BW125 to SF12BW125
646
647 923.3 - SF7BW125 to SF12BW125
648
649
650 (% style="color:blue" %)**Downlink:**
651
652 Uplink channels 1-7(RX1)
653
654 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
655
656
657 === 2.8.7 IN865-867 (IN865) ===
658
659 (% style="color:blue" %)**Uplink:**
660
661 865.0625 - SF7BW125 to SF12BW125
662
663 865.4025 - SF7BW125 to SF12BW125
664
665 865.9850 - SF7BW125 to SF12BW125
666
667
668 (% style="color:blue" %)**Downlink:**
669
670 Uplink channels 1-3 (RX1)
671
672 866.550 - SF10BW125 (RX2)
673
674
675
676 == 2.9 LED Indicator ==
677
678 The LSPH01 has an internal LED which is to show the status of different state.
679
680 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
681 * Blink once when device transmit a packet.
682
683
684
685 == 2.10 ​Firmware Change Log ==
686
687
688 **Firmware download link:**
689
690 [[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/]]
691
692
693 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
694
695
696
697 = 3. Configure LSPH01 via AT Command or LoRaWAN Downlink =
698
699 Use can configure LSPH01 via AT Command or LoRaWAN Downlink.
700
701 * AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
702 * LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
703
704 There are two kinds of commands to configure LSPH01, they are:
705
706 * (% style="color:#4f81bd" %)** General Commands**.
707
708 These commands are to configure:
709
710 * General system settings like: uplink interval.
711 * LoRaWAN protocol & radio related command.
712
713 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]]
714
715
716 * (% style="color:#4f81bd" %)** Commands special design for LSPH01**
717
718 These commands only valid for LSPH01, as below:
719
720
721
722 == 3.1 Set Transmit Interval Time ==
723
724 Feature: Change LoRaWAN End Node Transmit Interval.
725
726 (% style="color:#037691" %)**AT Command: AT+TDC**
727
728
729 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:710px" %)
730 |(% style="width:154px" %)**Command Example**|(% style="width:223px" %)**Function**|(% style="width:330px" %)**Response**
731 |(% style="width:154px" %)AT+TDC=?|(% style="width:223px" %)Show current transmit Interval|(% style="width:330px" %)(((
732 30000
733
734 OK
735
736 the interval is 30000ms = 30s
737 )))
738 |(% style="width:154px" %)AT+TDC=60000|(% style="width:223px" %)Set Transmit Interval|(% style="width:330px" %)(((
739 OK
740
741 Set transmit interval to 60000ms = 60 seconds
742 )))
743
744 (% style="color:#037691" %)**Downlink Command: 0x01**
745
746 Format: Command Code (0x01) followed by 3 bytes time value.
747
748 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
749
750 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
751 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
752
753
754
755 == 3.2 Set Interrupt Mode ==
756
757 Feature, Set Interrupt mode for GPIO_EXIT.
758
759 (% style="color:#037691" %)**AT Command: AT+INTMOD**
760
761 [[image:image-20220607153759-6.png]]
762
763
764 (% style="color:#037691" %)**Downlink Command: 0x06**
765
766 Format: Command Code (0x06) followed by 3 bytes.
767
768 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
769
770 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
771 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
772
773 == 3.3 Calibrate Sensor ==
774
775 Detail See [[Calibration Guide>>||anchor="2.7Calibration"]] for the user of 0x13 and 0x14 downlink commands
776
777
778
779 == 3.4 Get Firmware Version Info ==
780
781 Feature: use downlink to get firmware version.
782
783 (% style="color:#037691" %)**Downlink Command: 0x26**
784
785 [[image:image-20220607154718-7.png]]
786
787 * Reply to the confirmation package: 26 01
788 * Reply to non-confirmed packet: 26 00
789
790
791 Device will send an uplink after got this downlink command. With below payload:
792
793 Configures info payload:
794
795 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
796 |=(((
797 **Size(bytes)**
798 )))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
799 |**Value**|Software Type|(((
800 Frequency
801
802 Band
803 )))|Sub-band|(((
804 Firmware
805
806 Version
807 )))|Sensor Type|Reserve|(((
808 [[Message Type>>||anchor="H2.3.6MessageType"]]
809 Always 0x02
810 )))
811
812 **Software Type**: Always 0x03 for LSPH01
813
814
815 **Frequency Band**:
816
817 *0x01: EU868
818
819 *0x02: US915
820
821 *0x03: IN865
822
823 *0x04: AU915
824
825 *0x05: KZ865
826
827 *0x06: RU864
828
829 *0x07: AS923
830
831 *0x08: AS923-1
832
833 *0x09: AS923-2
834
835 *0xa0: AS923-3
836
837
838 **Sub-Band**: value 0x00 ~~ 0x08
839
840
841 **Firmware Version**: 0x0100, Means: v1.0.0 version
842
843
844 **Sensor Type**:
845
846 0x01: LSE01
847
848 0x02: LDDS75
849
850 0x03: LDDS20
851
852 0x04: LLMS01
853
854 0x05: LSPH01
855
856 0x06: LSNPK01
857
858 0x07: LDDS12
859
860
861
862 = 4. Battery & How to replace =
863
864 == 4.1 Battery Type ==
865
866 (((
867 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.
868 )))
869
870 (((
871 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
872 )))
873
874 [[image:1654588469844-778.png]]
875
876
877 Minimum Working Voltage for the LSPH01:
878
879 LSPH01:  2.45v ~~ 3.6v
880
881
882
883 == 4.2 Replace Battery ==
884
885 (((
886 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
887 )))
888
889 (((
890 And make sure the positive and negative pins match.
891 )))
892
893
894
895 == 4.3 Power Consumption Analyze ==
896
897 (((
898 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.
899 )))
900
901 (((
902 Instruction to use as below:
903 )))
904
905
906 **Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
907
908 [[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/]]
909
910
911 **Step 2**: Open it and choose
912
913 * Product Model
914 * Uplink Interval
915 * Working Mode
916
917 And the Life expectation in difference case will be shown on the right.
918
919 [[image:1654588577573-122.png]]
920
921
922 The battery related documents as below:
923
924 * (((
925 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
926 )))
927 * (((
928 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
929 )))
930 * (((
931 [[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]]
932 )))
933
934 [[image:image-20220607155856-8.png]]
935
936
937
938 === 4.3.1 ​Battery Note ===
939
940 (((
941 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.
942 )))
943
944
945
946 === ​4.3.2 Replace the battery ===
947
948 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.
949
950 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)
951
952
953
954 = 5. Use AT Command =
955
956 == 5.1 Access AT Commands ==
957
958 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.
959
960 [[image:1654589001411-343.png]]
961
962 **Connection:**
963
964 (% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
965
966 (% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
967
968 (% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
969
970
971 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:
972
973
974 [[image:1654589062541-567.png]]
975
976 Valid AT Command please check [[Configure Device>>path:#Configure_Device]].
977
978
979
980 = 6. FAQ =
981
982 == 6.1 How to change the LoRa Frequency Bands/Region ==
983
984 You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]].
985 When downloading the images, choose the required image file for download. ​
986
987
988
989 = 7. Trouble Shooting =
990
991 == 7.1 AT Commands input doesn’t work ==
992
993 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.
994
995
996
997 = 8. Order Info =
998
999 Part Number: (% style="color:blue" %)**LSPH01-XX**
1000
1001
1002 (% style="color:blue" %)**XX**(%%): The default frequency band
1003
1004 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
1005 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1006 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1007 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1008 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1009 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1010 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1011 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1012
1013 = 9. ​Packing Info =
1014
1015
1016 **Package Includes**:
1017
1018 * LSPH01 LoRaWAN Soil Ph Sensor x 1
1019
1020 **Dimension and weight**:
1021
1022 * Device Size: cm
1023 * Device Weight: g
1024 * Package Size / pcs : cm
1025 * Weight / pcs : g
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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