Version 71.1 by David Huang on 2022/09/06 17:20
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3 (% style="text-align:center" %)
4 [[image:1654592399090-860.png||height="514" width="477"]]
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 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
269
270 The payload is ASCII string, representative same HEX:
271
272 0xf86841105675413800640c781701000225010b6315537b010b0226631550fb010e022663154d7701110225631549f1011502246315466b01190223631542e5011d022163153f62011e022163153bde011e022163153859 where:
273
274 * Device ID: 0xf868411056754138 = f868411056754138
275 * Version: 0x0064=100=1.0.0
276
277 * BAT: 0x0c78 = 3192 mV = 3.192V
278 * Singal: 0x17 = 23
279 * Mod: 0x01 = 1
280 * Interrupt: 0x00= 0
281 * Soil PH: 0x0225= 549 = 5.49
282 * Soil Temperature:0x010B =267=26.7 °C
283 * Time stamp : 0x6315537b =1662342011
284 * Soil Temperature,Soil PH,Time stamp : 010b0226631550fb,Soil Temperature,Soil PH,Time stamp : 010e022663154d77,.......
285
286 == 2.4  Payload Explanation and Sensor Interface ==
287
288 === 2.4.1  Device ID ===
289
290 By default, the Device ID equal to the last 15 bits of IMEI.
291
292 User can use **AT+DEUI** to set Device ID
293
294
295 **Example:**
296
297 AT+DEUI=868411056754138
298
299 The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
300
301 === 2.4.2  Version Info ===
302
303 Specify the software version: 0x64=100, means firmware version 1.00.
304
305 For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
306
307 === 2.4.3  Battery Info ===
308
309 Check the battery voltage for NSPH01.
310
311 Ex1: 0x0B45 = 2885mV
312
313 Ex2: 0x0B49 = 2889mV
314
315 === 2.4.4  Signal Strength ===
316
317 NB-IoT Network signal Strength.
318
319 **Ex1: 0x1d = 29**
320
321 **0**  -113dBm or less
322
323 **1**  -111dBm
324
325 **2...30** -109dBm... -53dBm
326
327 **31**   -51dBm or greater
328
329 **99**    Not known or not detectable
330
331 === 2.4.5  Soil PH ===
332
333 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.
334
335 For example, if the data you get from the register is **__0x05 0xDC__**, the PH content in the soil is
336
337
338 **0229(H) = 549(D) /100 = 5.49.**
339
340 === 2.4.6  Soil Temperature ===
341
342 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
343
344 **Example**:
345
346 If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/100 = 2.61 °C
347
348 If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/100 = -1.29 °C
349
350 === 2.4.7  Timestamp ===
351
352 Time stamp : 0x6315537b =1662342011
353
354 Convert Unix timestamp to time 2022-9-5 9:40:11.
355
356
357
358 === 2.4.8  Digital Interrupt ===
359
360 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.
361
362 The command is:
363
364 **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]])**.**
365
366 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.
367
368 Example:
369
370 0x(00): Normal uplink packet.
371
372 0x(01): Interrupt Uplink Packet.
373
374 === 2.4.9  ​+5V Output ===
375
376
377 NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling. 
378
379
380 The 5V output time can be controlled by AT Command.
381
382
383 **AT+5VT=1000**
384
385
386 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
387
388
389 == 2.5  Downlink Payload ==
390
391 By default, NSE01 prints the downlink payload to console port.
392
393 [[image:image-20220708133731-5.png]]
394
395 **Examples:**
396
397
398 * (((
399 **Set TDC**
400 )))
401
402 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
403
404 Payload:    01 00 00 1E    TDC=30S
405
406 Payload:    01 00 00 3C    TDC=60S
407
408
409 * (((
410 **Reset**
411 )))
412
413 If payload = 0x04FF, it will reset the NSE01
414
415 * **INTMOD**
416
417 Downlink Payload: 06000003, Set AT+INTMOD=3
418
419 == 2.6  ​LED Indicator ==
420
421 The NSPH01 has an internal LED which is to show the status of different state.
422
423 * 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)
424 * Then the LED will be on for 1 second means device is boot normally.
425 * After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
426 * For each uplink probe, LED will be on for 500ms.
427
428 == 2.6 Installation and Maintain ==
429
430 === 2.6.1 Before measurement ===
431
432 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. 
433
434 === 2.6.2 Measurement ===
435
436 **Measurement the soil surface:**
437
438 [[image:1654592946732-634.png]]
439
440
441 Choose the proper measuring position. Split the surface soil according to the measured deep.
442
443 Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
444
445 Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
446
447 Put soil over the probe after insert. And start to measure.
448
449
450 **Measurement inside soil:**
451
452 Dig a hole with diameter > 20CM.
453
454 Insert the probe inside, method like measure the surface.
455
456 === 2.6.3 Maintain Probe ===
457
458 1. (((
459 pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
460 )))
461 1. (((
462 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.
463 )))
464 1. (((
465 Probe reference electrode is also no strong, need to avoid strong force or hitting.
466 )))
467 1. (((
468 User should keep reference electrode wet while not use.
469 )))
470 1. (((
471 Avoid the probes to touch oily matter. Which will cause issue in accuracy.
472 )))
473 1. (((
474 The probe is IP68 can be put in water.
475
476
477 )))
478
479 == 2.7 Calibration ==
480
481 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).
482
483 After stable, user can use below command to calibrate.
484
485 [[image:image-20220607171149-4.png]]
486
487 == 2.8  ​Firmware Change Log ==
488
489 Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
490
491 Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
492
493 == 2.9  ​Battery Analysis ==
494
495 === 2.9.1  ​Battery Type ===
496
497 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.
498
499 The battery is designed to last for several years depends on the actually use environment and update interval. 
500
501 The battery related documents as below:
502
503 * [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
504 * [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
505 * [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
506
507 [[image:image-20220708140453-6.png]]
508
509 === 2.9.2  Power consumption Analyze ===
510
511 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.
512
513 Instruction to use as below:
514
515 **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/]]
516
517 **Step 2: ** Open it and choose
518
519 * (((
520 Product Model
521 )))
522 * (((
523 Uplink Interval
524 )))
525 * (((
526 Working Mode
527 )))
528
529 And the Life expectation in difference case will be shown on the right.
530
531 [[image:image-20220708141352-7.jpeg]]
532
533 === 2.9.3  ​Battery Note ===
534
535 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.
536
537 === 2.9.4  Replace the battery ===
538
539 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).
540
541 = 3. ​ Access NB-IoT Module =
542
543 Users can directly access the AT command set of the NB-IoT module.
544
545 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/]] 
546
547
548 [[image:1657261278785-153.png]]
549
550 = 4.  Using the AT Commands =
551
552 == 4.1  Access AT Commands ==
553
554 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]]
555
556 AT+<CMD>?  : Help on <CMD>
557
558 AT+<CMD>         : Run <CMD>
559
560 AT+<CMD>=<value> : Set the value
561
562 AT+<CMD>=?  : Get the value
563
564 **General Commands**      
565
566 AT  : Attention       
567
568 AT?  : Short Help     
569
570 ATZ  : MCU Reset    
571
572 AT+TDC  : Application Data Transmission Interval
573
574 AT+CFG  : Print all configurations
575
576 AT+CFGMOD           : Working mode selection
577
578 AT+INTMOD            : Set the trigger interrupt mode
579
580 AT+5VT  : Set extend the time of 5V power  
581
582 AT+PRO  : Choose agreement
583
584 AT+WEIGRE  : Get weight or set weight to 0
585
586 AT+WEIGAP  : Get or Set the GapValue of weight
587
588 AT+RXDL  : Extend the sending and receiving time
589
590 AT+CNTFAC  : Get or set counting parameters
591
592 AT+SERVADDR  : Server Address
593
594 **COAP Management**      
595
596 AT+URI            : Resource parameters
597
598 **UDP Management**
599
600 AT+CFM          : Upload confirmation mode (only valid for UDP)
601
602 **MQTT Management**
603
604 AT+CLIENT               : Get or Set MQTT client
605
606 AT+UNAME  : Get or Set MQTT Username
607
608 AT+PWD                  : Get or Set MQTT password
609
610 AT+PUBTOPIC  : Get or Set MQTT publish topic
611
612 AT+SUBTOPIC  : Get or Set MQTT subscription topic
613
614 **Information**          
615
616 AT+FDR  : Factory Data Reset
617
618 AT+PWORD  : Serial Access Password
619
620 = ​5.  FAQ =
621
622 == 5.1 ​ How to Upgrade Firmware ==
623
624 User can upgrade the firmware for 1) bug fix, 2) new feature release.
625
626 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]]
627
628 **Notice, **NSPH01 **and **NSPH01 **share the same mother board. They use the same connection and method to update.**
629
630 == 5.2  Can I calibrate NSPH01 to different soil types? ==
631
632 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]].
633
634 = 6.  Trouble Shooting =
635
636 == 6.1  ​Connection problem when uploading firmware ==
637
638 **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]]
639
640
641 == 6.2  AT Command input doesn't work ==
642
643 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.
644
645
646 = 7. ​ Order Info =
647
648 Part Number**:** NSPH01
649
650
651 = 8.  Packing Info =
652
653
654 **Package Includes**:
655
656 * NSPH01 NB-IoT Soil Moisture & EC Sensor x 1
657 * External antenna x 1
658
659 **Dimension and weight**:
660
661 * Size: 195 x 125 x 55 mm
662 * Weight:   420g
663
664
665 = 9.  Support =
666
667 * 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.
668 * 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]]

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