Version 29.9 by Xiaoling on 2022/06/07 15:54
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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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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 == 1.3 Probe Specification ==
59
60
61 (% style="color:#4f81bd" %)**Soil pH:**
62
63 * Range: 3 ~~ 10 pH
64 * Resolution: 0.01 pH
65 * Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
66 * Temperature Compensation Range: 0 ~~ 50℃
67 * IP68 Protection
68 * Length: 3.5 meters
69
70 (% style="color:#4f81bd" %)**Soil Temperature:**
71
72 * Range -40℃～85℃
73 * Resolution: 0.1℃
74 * Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
75 * IP68 Protection
76 * Length: 3.5 meters
77
78 == 1.4 ​Applications ==
79
80 * Smart Agriculture
81
82 == 1.5 Pin mapping and power on ==
83
84 [[image:1654580482666-473.png]]
85
86
87
88 = 2. Configure LSPH01 to connect to LoRaWAN network =
89
90 == 2.1 How it works ==
91
92 (((
93 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.
94 )))
95
96 (((
97 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="H5.200BUseATCommand"]]to set the keys in the LSPH01.
98 )))
99
100
101 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
102
103 (((
104 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.
105 )))
106
107 (((
108
109 )))
110
111 (((
112 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.
113 )))
114
115 (((
116 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.
117 )))
118
119 (((
120 Each LSPH01 is shipped with a sticker with the default device EUI as below:
121 )))
122
123
124 [[image:image-20220607135531-1.jpeg]]
125
126
127 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
128
129
130 **Register the device**
131
132 [[image:1654581442672-605.png]]
133
134
135
136 **Add APP EUI and DEV EUI**
137
138 [[image:1654581465717-368.png]]
139
140
141
142 **Add APP EUI in the application**
143
144 [[image:1654581493871-516.png]]
145
146
147
148 **Add APP KEY**
149
150 [[image:1654581517630-991.png]]
151
152
153 (% style="color:blue" %)**Step 2**(%%): Power on LSPH01
154
155
156 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
157
158 [[image:image-20220607135918-2.png]]
159
160
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.
162
163 [[image:1654581590132-631.png]]
164
165
166
167 == 2.3 ​Uplink Payload ==
168
169 LSPH01 will uplink payload via LoRaWAN with below payload format: 
170
171 Uplink payload includes in total 11 bytes.
172
173 Normal uplink payload:
174
175 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
176 |(((
177 **Size**
178
179 **(bytes)**
180 )))|**2**|**2**|**2**|**2**|**1**|**1**|**1**
181 |**Value**|[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(((
182 [[Temperature>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
183
184 [[(Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
185 )))|[[Soil pH>>||anchor="H2.3.3SoilpH"]]|[[Soil Temperature>>||anchor="H2.3.4SoilTemperature"]]|(((
186 [[Digital Interrupt (Optional)>>||anchor="H2.3.5InterruptPin"]]
187 )))|Reserve|(((
188 [[Message Type>>||anchor="H2.3.6MessageType"]]
189 )))
190
191 [[image:1654581735133-458.png]]
192
193
194
195 === 2.3.1 Battery Info ===
196
197
198 Check the battery voltage for LSPH01.
199
200 Ex1: 0x0B45 = 2885mV
201
202 Ex2: 0x0B49 = 2889mV
203
204
205
206 === 2.3.2 DS18B20 Temperature sensor ===
207
208 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
209
210
211 **Example**:
212
213 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
214
215 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
216
217
218
219 === 2.3.3 Soil pH ===
220
221 Range: 0 ~~ 14 pH
222
223 **Example:**
224
225 (% style="color:#037691" %)** 0x02B7(H) = 695(D) = 6.95pH**
226
227
228
229 === 2.3.4 Soil Temperature ===
230
231 Get Soil Temperature 
232
233
234 **Example**:
235
236 If payload is: **0105H**:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
237
238 If payload is: **FF3FH** :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
239
240
241
242 === 2.3.5 Interrupt Pin ===
243
244 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.
245
246
247 **Example:**
248
249 0x00: Normal uplink packet.
250
251 0x01: Interrupt Uplink Packet.
252
253
254
255 === 2.3.6 Message Type ===
256
257 For a normal uplink payload, the message type is always 0x01.
258
259 Valid Message Type:
260
261
262 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
263 |**Message Type Code**|**Description**|**Payload**
264 |0x01|Normal Uplink|[[Normal Uplink Payload>>||anchor="H2.3Uplink Payload"]]
265 |0x02|Reply configures info|[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]]
266 |0x03|Reply Calibration Info|[[Calibration Payload>>||anchor="H2.7Calibration"]]
267
268 === 2.3.7 Decode payload in The Things Network ===
269
270 While using TTN network, you can add the payload format to decode the payload.
271
272
273 [[image:1654582541848-906.png]]
274
275 (((
276 The payload decoder function for TTN is here:
277 )))
278
279 (((
280 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/]]
281 )))
282
283
284
285 == 2.4 Uplink Interval ==
286
287 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"]]
288
289
290
291 == 2.5 ​Show Data in DataCake IoT Server ==
292
293 [[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:
294
295
296 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
297
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:**
299
300
301 [[image:1654583683416-869.png]]
302
303
304 [[image:1654583694084-878.png]]
305
306
307 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
308
309 (% style="color:blue" %)**Step 4**(%%)**: Create LSPH01 product.**
310
311 [[image:1654583711590-413.png]]
312
313
314
315 [[image:1654583732798-193.png]]
316
317
318 [[image:1654583749683-259.png]]
319
320
321 (% style="color:blue" %)**Step 5**(%%)**: add payload decode**
322
323 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/]]
324
325
326 [[image:1654583770974-935.png]]
327
328 [[image:1654583781517-146.png]]
329
330
331 [[image:1654583791351-557.png]]
332
333
334 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
335
336
337 [[image:1654583805491-713.png]]
338
339
340
341 == 2.6 Installation and Maintain ==
342
343 === 2.6.1 Before measurement ===
344
345 (((
346 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 )))
348
349
350
351 === 2.6.2 Measurement ===
352
353
354 (% style="color:#4f81bd" %)**Measurement the soil surface:**
355
356 [[image:1654584128046-287.png]]
357
358 Choose the proper measuring position. Split the surface soil according to the measured deep.
359
360 Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
361
362 Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
363
364 Put soil over the probe after insert. And start to measure.
365
366
367 (% style="color:#4f81bd" %)**Measurement inside soil:**
368
369 Dig a hole with diameter > 20CM.
370
371 Insert the probe inside, method like measure the surface.
372
373
374
375 === 2.6.3 Maintain Probe ===
376
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.
394
395
396
397 )))
398
399 == 2.7 Calibration ==
400
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).
402
403 After stable, user can use below command to calibrate.
404
405 [[image:image-20220607144936-3.png]]
406
407
408 (% style="color:#037691" %)**Calibration Payload**
409
410 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
411 |(((
412 **Size**
413
414 **(bytes)**
415 )))|**1**|**1**|**1**|**7**|**1**
416 |**Value**|(((
417 PH4
418
419 Calibrate value
420 )))|PH6.86 Calibrate value|(((
421 PH9.18
422
423 Calibrate value
424 )))|Reserve|(((
425 [[Message Type>>||anchor="H2.3.6MessageType"]]
426
427 Always 0x03
428 )))
429
430 User can also send 0x14 downlink command to poll the current calibration payload.
431
432 [[image:image-20220607145603-4.png]]
433
434 * Reply to the confirmation package: 14 01
435 * Reply to non-confirmed packet: 14 00
436
437
438
439 == 2.8 Frequency Plans ==
440
441 (((
442 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.
443 )))
444
445
446 === 2.8.1 EU863-870 (EU868) ===
447
448 (% style="color:blue" %)**Uplink:**
449
450 868.1 - SF7BW125 to SF12BW125
451
452 868.3 - SF7BW125 to SF12BW125 and SF7BW250
453
454 868.5 - SF7BW125 to SF12BW125
455
456 867.1 - SF7BW125 to SF12BW125
457
458 867.3 - SF7BW125 to SF12BW125
459
460 867.5 - SF7BW125 to SF12BW125
461
462 867.7 - SF7BW125 to SF12BW125
463
464 867.9 - SF7BW125 to SF12BW125
465
466 868.8 - FSK
467
468
469 (% style="color:blue" %)**Downlink:**
470
471 Uplink channels 1-9 (RX1)
472
473 869.525 - SF9BW125 (RX2 downlink only)
474
475
476
477 === 2.8.2 US902-928(US915) ===
478
479 (((
480 Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
481 )))
482
483 (((
484 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.
485 )))
486
487 (((
488 After Join success, the end node will switch to the correct sub band by:
489 )))
490
491 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
492 * 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)
493
494
495
496 === 2.8.3 CN470-510 (CN470) ===
497
498 Used in China, Default use CHE=1
499
500 (% style="color:blue" %)**Uplink:**
501
502 486.3 - SF7BW125 to SF12BW125
503
504 486.5 - SF7BW125 to SF12BW125
505
506 486.7 - SF7BW125 to SF12BW125
507
508 486.9 - SF7BW125 to SF12BW125
509
510 487.1 - SF7BW125 to SF12BW125
511
512 487.3 - SF7BW125 to SF12BW125
513
514 487.5 - SF7BW125 to SF12BW125
515
516 487.7 - SF7BW125 to SF12BW125
517
518
519 (% style="color:blue" %)**Downlink:**
520
521 506.7 - SF7BW125 to SF12BW125
522
523 506.9 - SF7BW125 to SF12BW125
524
525 507.1 - SF7BW125 to SF12BW125
526
527 507.3 - SF7BW125 to SF12BW125
528
529 507.5 - SF7BW125 to SF12BW125
530
531 507.7 - SF7BW125 to SF12BW125
532
533 507.9 - SF7BW125 to SF12BW125
534
535 508.1 - SF7BW125 to SF12BW125
536
537 505.3 - SF12BW125 (RX2 downlink only)
538
539
540
541 === 2.8.4 AU915-928(AU915) ===
542
543 (((
544 Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
545 )))
546
547 (((
548 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.
549 )))
550
551 (((
552
553 )))
554
555 (((
556 After Join success, the end node will switch to the correct sub band by:
557 )))
558
559 * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
560 * 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)
561
562
563
564
565 === 2.8.5 AS920-923 & AS923-925 (AS923) ===
566
567 (% style="color:blue" %)**Default Uplink channel:**
568
569 923.2 - SF7BW125 to SF10BW125
570
571 923.4 - SF7BW125 to SF10BW125
572
573
574 (% style="color:blue" %)**Additional Uplink Channel**:
575
576 (OTAA mode, channel added by JoinAccept message)
577
578
579 (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
580
581 922.2 - SF7BW125 to SF10BW125
582
583 922.4 - SF7BW125 to SF10BW125
584
585 922.6 - SF7BW125 to SF10BW125
586
587 922.8 - SF7BW125 to SF10BW125
588
589 923.0 - SF7BW125 to SF10BW125
590
591 922.0 - SF7BW125 to SF10BW125
592
593
594 (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
595
596 923.6 - SF7BW125 to SF10BW125
597
598 923.8 - SF7BW125 to SF10BW125
599
600 924.0 - SF7BW125 to SF10BW125
601
602 924.2 - SF7BW125 to SF10BW125
603
604 924.4 - SF7BW125 to SF10BW125
605
606 924.6 - SF7BW125 to SF10BW125
607
608
609 (% style="color:blue" %)**Downlink:**
610
611 Uplink channels 1-8 (RX1)
612
613 923.2 - SF10BW125 (RX2)
614
615
616
617 === 2.8.6 KR920-923 (KR920) ===
618
619 (% style="color:blue" %)**Default channel:**
620
621 922.1 - SF7BW125 to SF12BW125
622
623 922.3 - SF7BW125 to SF12BW125
624
625 922.5 - SF7BW125 to SF12BW125
626
627
628 (% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
629
630 922.1 - SF7BW125 to SF12BW125
631
632 922.3 - SF7BW125 to SF12BW125
633
634 922.5 - SF7BW125 to SF12BW125
635
636 922.7 - SF7BW125 to SF12BW125
637
638 922.9 - SF7BW125 to SF12BW125
639
640 923.1 - SF7BW125 to SF12BW125
641
642 923.3 - SF7BW125 to SF12BW125
643
644
645 (% style="color:blue" %)**Downlink:**
646
647 Uplink channels 1-7(RX1)
648
649 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
650
651
652 === 2.8.7 IN865-867 (IN865) ===
653
654 (% style="color:blue" %)**Uplink:**
655
656 865.0625 - SF7BW125 to SF12BW125
657
658 865.4025 - SF7BW125 to SF12BW125
659
660 865.9850 - SF7BW125 to SF12BW125
661
662
663 (% style="color:blue" %)**Downlink:**
664
665 Uplink channels 1-3 (RX1)
666
667 866.550 - SF10BW125 (RX2)
668
669
670
671 == 2.9 LED Indicator ==
672
673 The LSPH01 has an internal LED which is to show the status of different state.
674
675 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
676 * Blink once when device transmit a packet.
677
678
679
680
681 == 2.10 ​Firmware Change Log ==
682
683
684 **Firmware download link:**
685
686 [[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/]]
687
688
689 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
690
691
692
693 = 3. Configure LSPH01 via AT Command or LoRaWAN Downlink =
694
695 Use can configure LSPH01 via AT Command or LoRaWAN Downlink.
696
697 * AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
698 * LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
699
700 There are two kinds of commands to configure LSPH01, they are:
701
702 * (% style="color:#4f81bd" %)** General Commands**.
703
704 These commands are to configure:
705
706 * General system settings like: uplink interval.
707 * LoRaWAN protocol & radio related command.
708
709 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]]
710
711
712 * (% style="color:#4f81bd" %)** Commands special design for LSPH01**
713
714 These commands only valid for LSPH01, as below:
715
716
717
718 == 3.1 Set Transmit Interval Time ==
719
720 Feature: Change LoRaWAN End Node Transmit Interval.
721
722 (% style="color:#037691" %)**AT Command: AT+TDC**
723
724
725 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:710px" %)
726 |(% style="width:154px" %)**Command Example**|(% style="width:223px" %)**Function**|(% style="width:330px" %)**Response**
727 |(% style="width:154px" %)AT+TDC=?|(% style="width:223px" %)Show current transmit Interval|(% style="width:330px" %)(((
728 30000
729
730 OK
731
732 the interval is 30000ms = 30s
733 )))
734 |(% style="width:154px" %)AT+TDC=60000|(% style="width:223px" %)Set Transmit Interval|(% style="width:330px" %)(((
735 OK
736
737 Set transmit interval to 60000ms = 60 seconds
738 )))
739
740 (% style="color:#037691" %)**Downlink Command: 0x01**
741
742 Format: Command Code (0x01) followed by 3 bytes time value.
743
744 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
745
746 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
747 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
748
749
750 == 3.2 Set Interrupt Mode ==
751
752 Feature, Set Interrupt mode for GPIO_EXIT.
753
754 (% style="color:#037691" %)**AT Command: AT+INTMOD**
755
756 [[image:image-20220607153759-6.png]]
757
758
759 (% style="color:#037691" %)**Downlink Command: 0x06**
760
761 Format: Command Code (0x06) followed by 3 bytes.
762
763 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
764
765 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
766 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
767
768
769 == 3.3 Calibrate Sensor ==
770
771 Detail See [[Calibration Guide>>||anchor="2.7Calibration"]] for the user of 0x13 and 0x14 downlink commands
772
773
774
775 == 3.4 Get Firmware Version Info ==
776
777 Feature: use downlink to get firmware version.
778
779 (% style="color:#037691" %)**Downlink Command: 0x26**
780
781 [[image:image-20220607154718-7.png]]
782
783 * Reply to the confirmation package: 26 01
784 * Reply to non-confirmed packet: 26 00
785
786
787
788 Device will send an uplink after got this downlink command. With below payload:
789
790 Configures info payload:
791
792 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
793 |=(((
794 **Size(bytes)**
795 )))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**
796 |**Value**|Software Type|(((
797 Frequency
798
799 Band
800 )))|Sub-band|(((
801 Firmware
802
803 Version
804 )))|Sensor Type|Reserve|(((
805 [[Message Type>>||anchor="H2.3.6MessageType"]]
806 Always 0x02
807 )))
808
809 **Software Type**: Always 0x03 for LSPH01
810
811
812 **Frequency Band**:
813
814 *0x01: EU868
815
816 *0x02: US915
817
818 *0x03: IN865
819
820 *0x04: AU915
821
822 *0x05: KZ865
823
824 *0x06: RU864
825
826 *0x07: AS923
827
828 *0x08: AS923-1
829
830 *0x09: AS923-2
831
832 *0xa0: AS923-3
833
834
835 **Sub-Band**: value 0x00 ~~ 0x08
836
837
838 **Firmware Version**: 0x0100, Means: v1.0.0 version
839
840
841 **Sensor Type**:
842
843 0x01: LSE01
844
845 0x02: LDDS75
846
847 0x03: LDDS20
848
849 0x04: LLMS01
850
851 0x05: LSPH01
852
853 0x06: LSNPK01
854
855 0x07: LDDS12
856
857
858
859 = 4. Battery & How to replace =
860
861 == 4.1 Battery Type ==
862
863 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.
864
865
866 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
867
868 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
869
870
871 Minimum Working Voltage for the LSPH01:
872
873 LSPH01:  2.45v ~~ 3.6v
874
875
876 1.
877 11. Replace Battery
878
879 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
880
881 And make sure the positive and negative pins match.
882
883
884
885 1.
886 11. Power Consumption Analyze
887
888 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.
889
890
891 Instruction to use as below:
892
893
894 Step 1: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
895
896 [[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/]]
897
898
899 Step 2: Open it and choose
900
901 * Product Model
902 * Uplink Interval
903 * Working Mode
904
905 And the Life expectation in difference case will be shown on the right.
906
907 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
908
909
910 The battery related documents as below:
911
912 * [[Battery Dimension>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
913 * [[Lithium-Thionyl Chloride Battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] datasheet
914 * [[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]]
915
916 |(((
917 JST-XH-2P connector
918 )))
919
920 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
921
922
923
924 1.
925 11.
926 111. ​Battery Note
927
928 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.
929
930
931 1.
932 11.
933 111. ​Replace the battery
934
935 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.
936
937
938 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)
939
940
941
942
943
944
945 1. Use AT Command
946 11. Access AT Commands
947
948 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.
949
950 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
951
952 Connection:
953
954 USB TTL GND <~-~-~-~-> GND
955
956 USB TTL TXD <~-~-~-~-> UART_RXD
957
958 USB TTL RXD <~-~-~-~-> UART_TXD
959
960
961 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:
962
963
964 [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
965
966 Valid AT Command please check [[Configure Device>>path:#Configure_Device]].
967
968
969
970
971 1. FAQ
972 11. How to change the LoRa Frequency Bands/Region
973
974 You can follow the instructions for [[how to upgrade image>>path:#3ygebqi]].
975 When downloading the images, choose the required image file for download. ​
976
977
978
979 1. Trouble Shooting
980 11. AT Commands input doesn’t work
981
982 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.
983
984
985 1. Order Info
986
987 Part Number: **LSPH01-XX**
988
989
990 **XX**: The default frequency band
991
992 * **AS923**: LoRaWAN AS923 band
993 * **AU915**: LoRaWAN AU915 band
994 * **EU433**: LoRaWAN EU433 band
995 * **EU868**: LoRaWAN EU868 band
996 * **KR920**: LoRaWAN KR920 band
997 * **US915**: LoRaWAN US915 band
998 * **IN865**: LoRaWAN IN865 band
999 * **CN470**: LoRaWAN CN470 band
1000
1001 1. ​Packing Info
1002
1003 **Package Includes**:
1004
1005 * LSPH01 LoRaWAN Soil Ph Sensor x 1
1006
1007 **Dimension and weight**:
1008
1009 * Device Size: cm
1010 * Device Weight: g
1011 * Package Size / pcs : cm
1012 * Weight / pcs : g
1013
1014 = 10. ​Support =
1015
1016 * 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.
1017 * 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
1018
1019 [[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]]
1020
1021

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