Version 68.1 by David Huang on 2022/09/05 18:01
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3 (% style="text-align:center" %)
4 [[image:1654592399090-860.png||height="521" width="483"]]
5
6 **Table of Contents:**
7
8 {{toc/}}
9
10 = 1. Introduction =
11
12 == 1.1 ​What is NSPH01 Soil pH Sensor ==
13
14
15 The Dragino NSPH01 is a **NB-IOT 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.
16
17 NSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's** pH **with high accuracy and stable value. The NSPH01 probe can be buried into soil for long time use.
18
19 NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
20 \\NSPH01 supports different uplink methods include **TCP,MQTT,UDP and CoAP **for different application requirement.
21 \\NSPH01 is powered by  **8500mAh Li-SOCI2 battery**, It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
22 \\To use NSPH01, user needs to check if there is NB-IoT coverage in local area and with the bands NSPH01 supports. If the local operate support it, user needs to get a **NB-IoT SIM card** from local operator and install NSPH01 to get NB-IoT network connection
23
24 [[image:1654503236291-817.png]]
25
26 [[image:1654592435432-887.png]]
27
28 == ​1.2 Features ==
29
30 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
31 * Monitor soil pH with temperature compensation.
32 * Monitor soil temperature
33 * Monitor Battery Level
34 * Support pH calibration by end user
35 * Uplink on periodically
36 * Downlink to change configure
37 * IP66 Waterproof Enclosure
38 * IP68 rate for the Sensor Probe
39 * Ultra-Low Power consumption
40 * AT Commands to change parameters
41 * Micro SIM card slot for NB-IoT SIM
42 * 8500mAh Battery for long term use
43
44 == 1.3  Specification ==
45
46
47 **Common DC Characteristics:**
48
49 * Supply Voltage: 2.1v ~~ 3.6v
50 * Operating Temperature: -40 ~~ 85°C
51
52 **NB-IoT Spec:**
53
54 * - B1 @H-FDD: 2100MHz
55 * - B3 @H-FDD: 1800MHz
56 * - B8 @H-FDD: 900MHz
57 * - B5 @H-FDD: 850MHz
58 * - B20 @H-FDD: 800MHz
59 * - B28 @H-FDD: 700MHz
60
61 == 1.4 Probe Specification ==
62
63 **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 **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 == 1.5 ​Applications ==
81
82 * Smart Agriculture
83
84 == 1.6 Pin mapping and power on ==
85
86 [[image:1654592472094-134.png]]
87
88 = =
89
90 = 2.  Use NSPH01 to communicate with IoT Server =
91
92 == 2.1  How it works ==
93
94 The NSPH01 is equipped with a NB-IoT module, the pre-loaded firmware in NSPH01 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NSPH01.
95
96 The diagram below shows the working flow in default firmware of NSPH01:
97
98 [[image:image-20220708101605-2.png]]
99
100
101 == 2.2 ​ Configure the NSPH01 ==
102
103 === 2.2.1 Test Requirement ===
104
105 To use NSPH01 in your city, make sure meet below requirements:
106
107 * Your local operator has already distributed a NB-IoT Network there.
108 * The local NB-IoT network used the band that NSPH01 supports.
109 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
110
111 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NSPH01 will use CoAP(120.24.4.116:5683) or raw UDP(120.24.4.116:5601) or MQTT(120.24.4.116:1883)or TCP(120.24.4.116:5600)protocol to send data to the test server
112
113 [[image:1657249419225-449.png]]
114
115 === 2.2.2 Insert SIM card ===
116
117 Insert the NB-IoT Card get from your provider.
118
119 User need to take out the NB-IoT module and insert the SIM card like below:
120
121 [[image:1657249468462-536.png]]
122
123 === 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
124
125 User need to configure NSPH01 via serial port to set the **Server Address** / **Uplink Topic** to define where and how-to uplink packets. NSPH01 support AT Commands, user can use a USB to TTL adapter to connect to NSPH01 and use AT Commands to configure it, as below.
126
127 **Connection:**
128
129 USB TTL GND <~-~-~-~-> GND
130
131 USB TTL TXD <~-~-~-~-> UART_RXD
132
133 USB TTL RXD <~-~-~-~-> UART_TXD
134
135 In the PC, use below serial tool settings:
136
137 * Baud:  **9600**
138 * Data bits:** 8**
139 * Stop bits: **1**
140 * Parity:  **None**
141 * Flow Control: **None**
142
143 Make sure the switch is in FLASH position, then power on device by connecting the jumper on NSPH01. NSPH01 will output system info once power on as below, we can enter the **password: 12345678** to access AT Command input.
144
145 [[image:image-20220708110657-3.png]]
146
147 **Note: the valid AT Commands can be found at:  [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]**
148
149 === 2.2.4 Use CoAP protocol to uplink data ===
150
151 **Note: if you don't have CoAP server, you can refer this link to set up one: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]**
152
153 **Use below commands:**
154
155 * **AT+PRO=1**   ~/~/ Set to use CoAP protocol to uplink
156 * **AT+SERVADDR=120.24.4.116,5683   ** ~/~/ to set CoAP server address and port
157 * **AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** ~/~/Set COAP resource path
158
159 For parameter description, please refer to AT command set
160
161 [[image:1657249793983-486.png]]
162
163 After configure the server address and **reset the device** (via AT+ATZ ), NSPH01 will start to uplink sensor values to CoAP server.
164
165 [[image:1657249831934-534.png]]
166
167 === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
168
169 This feature is supported since firmware version v1.0.1
170
171 * **AT+PRO=2   ** ~/~/ Set to use UDP protocol to uplink
172 * **AT+SERVADDR=120.24.4.116,5601   ** ~/~/ to set UDP server address and port
173 * **AT+CFM=1       ** ~/~/If the server does not respond, this command is unnecessary
174
175 [[image:1657249864775-321.png]]
176
177 [[image:1657249930215-289.png]]
178
179 === 2.2.6 Use MQTT protocol to uplink data ===
180
181 This feature is supported since firmware version v110
182
183 * **AT+PRO=3   ** ~/~/Set to use MQTT protocol to uplink
184 * **AT+SERVADDR=120.24.4.116,1883   ** ~/~/Set MQTT server address and port
185 * **AT+CLIENT=CLIENT       ** ~/~/Set up the CLIENT of MQTT
186 * **AT+UNAME=UNAME                               **~/~/Set the username of MQTT
187 * **AT+PWD=PWD                                        **~/~/Set the password of MQTT
188 * **AT+PUBTOPIC=NSE01_PUB                    **~/~/Set the sending topic of MQTT
189 * **AT+SUBTOPIC=NSE01_SUB          ** ~/~/Set the subscription topic of MQTT
190
191 [[image:1657249978444-674.png]]
192
193 [[image:1657249990869-686.png]]
194
195 MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
196
197 === 2.2.7 Use TCP protocol to uplink data ===
198
199 This feature is supported since firmware version v110
200
201 * **AT+PRO=4   ** ~/~/ Set to use TCP protocol to uplink
202 * **AT+SERVADDR=120.24.4.116,5600   ** ~/~/ to set TCP server address and port
203
204 [[image:1657250217799-140.png]]
205
206 [[image:1657250255956-604.png]]
207
208 === 2.2.8 Change Update Interval ===
209
210 User can use below command to change the **uplink interval**.
211
212 * **AT+TDC=600      ** ~/~/ Set Update Interval to 600s
213
214 **NOTE:**
215
216 **~1. By default, the device will send an uplink message every 1 hour.**
217
218
219 == 2.3  Uplink Payload ==
220
221 In this mode, uplink payload includes in total 18 bytes
222
223 (% style="background-color:#ffffff; width:917px" %)
224 |=(% style="width: 96px;" %)(((
225 **Size(bytes)**
226 )))|=(% style="width: 89px;" %)(((
227 **8**
228 )))|=(% style="width: 52px;" %)(((
229 2
230 )))|=(% style="width: 58px;" %)(((
231 **2**
232 )))|=(% style="width: 131px;" %)(((
233 **1**
234 )))|=(% style="width: 65px;" %)(((
235 1
236 )))|=(% style="width: 87px;" %)(((
237 **1**
238 )))|=(% style="width: 83px;" %)(((
239 **2**
240 )))|=(% style="width: 146px;" %)(((
241 **2**
242 )))|(% style="width:107px" %)4
243 |(% style="width:96px" %)(((
244 **Value**
245 )))|(% style="width:89px" %)(((
246 [[Device ID>>path:#H2.4.1A0A0DeviceID]]
247 )))|(% style="width:52px" %)(((
248 [[Ver>>path:#H2.4.2A0VersionInfo]]
249 )))|(% style="width:58px" %)(((
250 [[BAT>>path:#H2.4.3A0BatteryInfo]]
251 )))|(% style="width:131px" %)(((
252 [[Signal Strength>>path:#H2.4.4A0SignalStrength]]
253 )))|(% style="width:65px" %)(((
254 MOD
255 )))|(% style="width:87px" %)(((
256 [[Interrupt>>path:#H2.4.8A0DigitalInterrupt]]
257 )))|(% style="width:83px" %)(((
258 [[Soil P>>path:#H2.4.7A0SoilConductivity28EC29]]H
259 )))|(% style="width:146px" %)(((
260 [[Soil Temperature>>path:#H2.4.6A0SoilTemperature]]
261 )))|(% style="width:107px" %)Time stamp
262
263 (% style="width:541px" %)
264 |(% style="width:142px" %)2|(% style="width:135px" %)2|(% style="width:136px" %)4|(% style="width:125px" %)8~~32 group
265 |(% style="width:142px" %)[[Soil Temperature>>path:#H2.4.6A0SoilTemperature]]|(% style="width:135px" %)[[Soil P>>path:#H2.4.7A0SoilConductivity28EC29]]H|(% style="width:136px" %)Time stamp|(% style="width:125px" %)...
266
267
268
269 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
270
271 The payload is ASCII string, representative same HEX:
272
273 0xf86841105675413800640c781701000225010b6315537b010b0226631550fb010e022663154d7701110225631549f1011502246315466b01190223631542e5011d022163153f62011e022163153bde011e022163153859 where:
274
275 * Device ID: 0xf868411056754138 = f868411056754138
276 * Version: 0x0064=100=1.0.0
277
278 * BAT: 0x0c78 = 3192 mV = 3.192V
279 * Singal: 0x17 = 23
280 * Mod: 0x01 = 1
281 * Interrupt: 0x00= 0
282 * Soil PH: 0x0225= 549 = 5.49
283 * Soil Temperature:0x010B =267=26.7 °C
284 * Time stamp : 0x6315537b =1662342011
285 * Soil Temperature,Soil PH,Time stamp : 010b0226631550fb,Soil Temperature,Soil PH,Time stamp : 010e022663154d77,.......
286
287 == 2.4  Payload Explanation and Sensor Interface ==
288
289 === 2.4.1  Device ID ===
290
291 By default, the Device ID equal to the last 15 bits of IMEI.
292
293 User can use **AT+DEUI** to set Device ID
294
295
296 **Example:**
297
298 AT+DEUI=868411056754138
299
300 The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
301
302 === 2.4.2  Version Info ===
303
304 Specify the software version: 0x64=100, means firmware version 1.00.
305
306 For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
307
308 === 2.4.3  Battery Info ===
309
310 Check the battery voltage for NSPH01.
311
312 Ex1: 0x0B45 = 2885mV
313
314 Ex2: 0x0B49 = 2889mV
315
316 === 2.4.4  Signal Strength ===
317
318 NB-IoT Network signal Strength.
319
320 **Ex1: 0x1d = 29**
321
322 **0**  -113dBm or less
323
324 **1**  -111dBm
325
326 **2...30** -109dBm... -53dBm
327
328 **31**   -51dBm or greater
329
330 **99**    Not known or not detectable
331
332 === 2.4.5  Soil PH ===
333
334 Get the PH content of the soil. The value range of the register is 300-1000(Decimal), divide this value by 100 to get the percentage of PH in the soil.
335
336 For example, if the data you get from the register is **__0x05 0xDC__**, the PH content in the soil is
337
338
339 **0229(H) = 549(D) /100 = 5.49.**
340
341 === 2.4.6  Soil Temperature ===
342
343 Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is __**0x09 0xEC**__, the temperature content in the soil is
344
345 **Example**:
346
347 If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/100 = 2.61 °C
348
349 If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/100 = -1.29 °C
350
351 === 2.4.7  Timestamp ===
352
353 Time stamp : 0x6315537b =1662342011
354
355 Convert Unix timestamp to time 2022-9-5 9:40:11.
356
357
358
359 === 2.4.8  Digital Interrupt ===
360
361 Digital Interrupt refers to pin **GPIO_EXTI**, and there are different trigger methods. When there is a trigger, the NSPH01 will send a packet to the server.
362
363 The command is:
364
365 **AT+INTMOD=3 ** ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
366
367 The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
368
369 Example:
370
371 0x(00): Normal uplink packet.
372
373 0x(01): Interrupt Uplink Packet.
374
375 === 2.4.9  ​+5V Output ===
376
377
378 NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling. 
379
380
381 The 5V output time can be controlled by AT Command.
382
383
384 **AT+5VT=1000**
385
386
387 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
388
389
390 == 2.5  Downlink Payload ==
391
392 By default, NSE01 prints the downlink payload to console port.
393
394 [[image:image-20220708133731-5.png]]
395
396 **Examples:**
397
398
399 * (((
400 **Set TDC**
401 )))
402
403 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
404
405 Payload:    01 00 00 1E    TDC=30S
406
407 Payload:    01 00 00 3C    TDC=60S
408
409
410 * (((
411 **Reset**
412 )))
413
414 If payload = 0x04FF, it will reset the NSE01
415
416 * **INTMOD**
417
418 Downlink Payload: 06000003, Set AT+INTMOD=3
419
420 == 2.6  ​LED Indicator ==
421
422 The NSPH01 has an internal LED which is to show the status of different state.
423
424 * When power on, NSPH01 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
425 * Then the LED will be on for 1 second means device is boot normally.
426 * After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
427 * For each uplink probe, LED will be on for 500ms.
428
429 == 2.6 Installation and Maintain ==
430
431 === 2.6.1 Before measurement ===
432
433 If the NSPH01 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. 
434
435 === 2.6.2 Measurement ===
436
437 **Measurement the soil surface:**
438
439 [[image:1654592946732-634.png]]
440
441
442 Choose the proper measuring position. Split the surface soil according to the measured deep.
443
444 Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
445
446 Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
447
448 Put soil over the probe after insert. And start to measure.
449
450
451 **Measurement inside soil:**
452
453 Dig a hole with diameter > 20CM.
454
455 Insert the probe inside, method like measure the surface.
456
457 === 2.6.3 Maintain Probe ===
458
459 1. (((
460 pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
461 )))
462 1. (((
463 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.
464 )))
465 1. (((
466 Probe reference electrode is also no strong, need to avoid strong force or hitting.
467 )))
468 1. (((
469 User should keep reference electrode wet while not use.
470 )))
471 1. (((
472 Avoid the probes to touch oily matter. Which will cause issue in accuracy.
473 )))
474 1. (((
475 The probe is IP68 can be put in water.
476
477
478 )))
479
480 == 2.7 Calibration ==
481
482 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).
483
484 After stable, user can use below command to calibrate.
485
486 [[image:image-20220607171149-4.png]]
487
488 == 2.8  ​Firmware Change Log ==
489
490 Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
491
492 Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
493
494 == 2.9  ​Battery Analysis ==
495
496 === 2.9.1  ​Battery Type ===
497
498 The NSPH01 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
499
500 The battery is designed to last for several years depends on the actually use environment and update interval. 
501
502 The battery related documents as below:
503
504 * [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
505 * [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
506 * [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
507
508 [[image:image-20220708140453-6.png]]
509
510 === 2.9.2  Power consumption Analyze ===
511
512 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.
513
514 Instruction to use as below:
515
516 **Step 1:  **Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[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/]]
517
518 **Step 2: ** Open it and choose
519
520 * (((
521 Product Model
522 )))
523 * (((
524 Uplink Interval
525 )))
526 * (((
527 Working Mode
528 )))
529
530 And the Life expectation in difference case will be shown on the right.
531
532 [[image:image-20220708141352-7.jpeg]]
533
534 === 2.9.3  ​Battery Note ===
535
536 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.
537
538 === 2.9.4  Replace the battery ===
539
540 The default battery pack of NSPH01 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
541
542 = 3. ​ Access NB-IoT Module =
543
544 Users can directly access the AT command set of the NB-IoT module.
545
546 The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 
547
548
549 [[image:1657261278785-153.png]]
550
551 = 4.  Using the AT Commands =
552
553 == 4.1  Access AT Commands ==
554
555 See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
556
557 AT+<CMD>?  : Help on <CMD>
558
559 AT+<CMD>         : Run <CMD>
560
561 AT+<CMD>=<value> : Set the value
562
563 AT+<CMD>=?  : Get the value
564
565 **General Commands**      
566
567 AT  : Attention       
568
569 AT?  : Short Help     
570
571 ATZ  : MCU Reset    
572
573 AT+TDC  : Application Data Transmission Interval
574
575 AT+CFG  : Print all configurations
576
577 AT+CFGMOD           : Working mode selection
578
579 AT+INTMOD            : Set the trigger interrupt mode
580
581 AT+5VT  : Set extend the time of 5V power  
582
583 AT+PRO  : Choose agreement
584
585 AT+WEIGRE  : Get weight or set weight to 0
586
587 AT+WEIGAP  : Get or Set the GapValue of weight
588
589 AT+RXDL  : Extend the sending and receiving time
590
591 AT+CNTFAC  : Get or set counting parameters
592
593 AT+SERVADDR  : Server Address
594
595 **COAP Management**      
596
597 AT+URI            : Resource parameters
598
599 **UDP Management**
600
601 AT+CFM          : Upload confirmation mode (only valid for UDP)
602
603 **MQTT Management**
604
605 AT+CLIENT               : Get or Set MQTT client
606
607 AT+UNAME  : Get or Set MQTT Username
608
609 AT+PWD                  : Get or Set MQTT password
610
611 AT+PUBTOPIC  : Get or Set MQTT publish topic
612
613 AT+SUBTOPIC  : Get or Set MQTT subscription topic
614
615 **Information**          
616
617 AT+FDR  : Factory Data Reset
618
619 AT+PWORD  : Serial Access Password
620
621 = ​5.  FAQ =
622
623 == 5.1 ​ How to Upgrade Firmware ==
624
625 User can upgrade the firmware for 1) bug fix, 2) new feature release.
626
627 Please see this link for how to upgrade:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
628
629 **Notice, **NSPH01 **and **NSPH01 **share the same mother board. They use the same connection and method to update.**
630
631 == 5.2  Can I calibrate NSPH01 to different soil types? ==
632
633 NSPH01 is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at [[this link>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/LSE01/Calibrate_to_other_Soil_20220605.pdf]].
634
635 = 6.  Trouble Shooting =
636
637 == 6.1  ​Connection problem when uploading firmware ==
638
639 **Please see: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]]
640
641
642 == 6.2  AT Command input doesn't work ==
643
644 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.
645
646
647 = 7. ​ Order Info =
648
649 Part Number**:** NSPH01
650
651
652 = 8.  Packing Info =
653
654
655 **Package Includes**:
656
657 * NSPH01 NB-IoT Soil Moisture & EC Sensor x 1
658 * External antenna x 1
659
660
661 **Dimension and weight**:
662
663 * Size: 195 x 125 x 55 mm
664 * Weight:   420g
665
666
667
668 = 9.  Support =
669
670 * 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.
671 * 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]]
672
673

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