Changes for page NSPH01-NB-IoT Soil pH Sensor User Manual

Last modified by Bei Jinggeng on 2024/03/30 17:53

From version < 56.3 >

edited by Xiaoling
on 2022/10/25 16:39

To version < 51.4 >

edited by Xiaoling
on 2022/09/12 15:04

Change comment: There is no comment for this version

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@@ -48,7 +48,6 @@
  * Micro SIM card slot
  * 8500mAh Battery for long term use
--
  == 1.3  Specification ==
@@ -66,7 +66,6 @@
  * - B20 @H-FDD: 800MHz
  * - B28 @H-FDD: 700MHz
--
  == 1.4  Probe Specification ==
@@ -87,16 +87,13 @@
  * IP68 Protection
  * Length: 3.5 meters
++== 1.5 Applications ==
--== 1.5  Applications ==
--
--
  * Smart Agriculture
++== 1.6 Pin mapping and power on ==
--== 1.6  Pin mapping and power on ==
--
  [[image:image-20220907153300-2.png]]
@@ -128,7 +128,7 @@
  * The local NB-IoT network used the band that NSPH01 supports.
  * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
--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.
++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.
  [[image:image-20220907153445-4.png]]
@@ -140,7 +140,6 @@
  User need to take out the NB-IoT module and insert the SIM card like below. ((% style="color:red" %) Pay attention to the direction(%%))
--
  [[image:image-20220907153505-5.png]]
@@ -167,6 +167,7 @@
  * Stop bits:        (% style="color:green" %)**1**
  * Parity:             (% style="color:green" %)**None**
  * Flow Control: (% style="color:green" %)**None**
++*
  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 (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
@@ -212,6 +212,8 @@
  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   **  (%%) ~/~/   to set UDP server address and port
  * (% style="color:blue" %)**AT+CFM=1       **                      (%%)                ~/~/    If the server does not respond, this command is unnecessar
++
++
  [[image:image-20220907153643-9.png||height="401" width="734"]]
@@ -232,6 +232,8 @@
  * (% style="color:blue" %)**AT+PUBTOPIC=NSE01_PUB                    **(%%)~/~/ Set the sending topic of MQTT
  * (% style="color:blue" %)**AT+SUBTOPIC=NSE01_SUB          **   (%%)       ~/~/ Set the subscription topic of MQTT
++
++
  [[image:image-20220907153739-11.png||height="491" width="764"]]
@@ -251,6 +251,8 @@
  * (% style="color:blue" %)**AT+PRO=4   **                        (%%)                   ~/~/ Set to use TCP protocol to uplink
  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **  (%%) ~/~/ to set TCP server address and port
++
++
  [[image:image-20220907153818-13.png||height="486" width="668"]]
@@ -258,9 +258,9 @@
++
  === 2.2.8  Change Update Interval ===
--
  Users can use the below command to change the **uplink interval**.
  * (% style="color:blue" %)**AT+TDC=7200      ** (%%) ~/~/ Set Update Interval to 7200s (2 hour)
@@ -268,75 +268,45 @@
  (% style="color:red" %)**NOTE: By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
--
  == 2.3  Uplink Payload ==
--
  In this mode, uplink payload includes 87 bytes in total by default.
  Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
--(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
--|=(% scope="row" style="width: 50px;" %)**Size(bytes)**|(% style="width:40px" %)**8**|(% style="width:20px" %)**2**|(% style="width:20px" %)**2**|(% style="width:60px" %)**1**|(% style="width:20px" %)**1**|(% style="width:40px" %)**1**|(% style="width:40px" %)**2**|(% style="width:60px" %)**2**|(% style="width:50px" %)**4**|(% style="width:60px" %)**2**|(% style="width:40px" %)**2**|(% style="width:40px" %)**4**
--|=(% style="width: 96px;" %)**Value**|(% style="width:83px" %)Device ID|(% style="width:44px" %)Ver|(% style="width:42px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:57px" %)MOD|(% style="width:80px" %)Interrupt|(% style="width:69px" %)Soil PH|(% style="width:134px" %)Soil Temperature|(% style="width:98px" %)Time stamp|(% style="width:134px" %)Soil Temperature|(% style="width:68px" %)Soil PH|(% style="width:125px" %)Time stamp  .....
++|**Size(bytes)**|**8**|**2**|**2**|1|1|1|2|2|4|2|2|4
++|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Soil PH|Soil Temperature|Time stamp|Soil Temperature|Soil PH|Time stamp  .....
  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
++(% style="text-align:center" %)
  [[image:image-20220907153902-15.png||height="581" width="804"]]
--(((
  The payload is ASCII string, representative same HEX:
--)))
--(((
--
--)))
++0x(% style="color:red" %)f868411056754138(% style="color:blue" %)0064(% style="color:green" %)0c78(% style="color:red" %)17(% style="color:blue" %)01(% style="color:green" %)00(% style="color:red" %)**//0225010b6315537b//**010b0226631550fb//**010e022663154d77**//01110225631549f1//**011502246315466b**//01190223631542e5//**011d022163153f62**//011e022163153bde//**011e022163153859**//(%%) where:
--(((
--**0x (% style="color:red" %)__f868411056754138__  (% style="color:blue" %)__0064 __ (% style="color:green" %)__0c78__  (% style="color:#00b0f0" %)__17__  (% style="color:#7030a0" %)__01__  (% style="color:#d60093" %)__00__  (% style="color:#a14d07" %)__0225 __ (% style="color:#0020b0" %) __010b__  (% style="color:#420042" %)__6315537b__  (% style="color:#663300" %)//__010b0226631550fb__  __010e022663154d77  01110225631549f1  011502246315466b  01190223631542e5  011d022163153f62  011e022163153bde 011e022163153859__//(%%)**
--)))
++* (% style="color:red" %)Device ID: 0xf868411056754138 = f868411056754138
++* (% style="color:blue" %)Version: 0x0064=100=1.0.0
++* (% style="color:green" %)BAT: 0x0c78 = 3192 mV = 3.192V
++* (% style="color:red" %)Singal: 0x17 = 23
++* (% style="color:blue" %)Mod: 0x01 = 1
++* (% style="color:green" %)Interrupt: 0x00= 0
++* Soil PH: 0x0225= 549 = 5.49
++* Soil Temperature:0x010B =267=26.7 °C
++* Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
++* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
++* (% style="color:red" %)8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
--(((
--
--
--**where:**
--)))
--
--* (% style="color:#037691" %)**Device ID:**(%%)** **0xf868411056754138 = f868411056754138
--
--* (% style="color:#037691" %)**Version:**  (%%)  0x0064=100=1.0.0
--
--* (% style="color:#037691" %)**BAT:**   (%%)  0x0c78 = 3192 mV = 3.192V
--
--* (% style="color:#037691" %)**Singal:** (%%)0x17 = 23
--
--* (% style="color:#037691" %)**Mod:** (%%)  0x01 = 1
--
--* (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
--
--* (% style="color:#037691" %)**Soil PH:** (%%)   0x0225= 549 = 5.49
--
--* (% style="color:#037691" %)**Soil Temperature:**(%%) 0x010b =267=26.7 °C
--
--* (% style="color:#037691" %)**Time stamp :**   (%%)     0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
--
--* (% style="color:#037691" %)**Soil Temperature,Soil PH,Time stamp : **(%%) 010b0226631550fb
--
--* (% style="color:#037691" %)**8 sets of recorded data:**(%%) Temperature,Soil PH,Time stamp :  010e022663154d77,.......
--
--
  == 2.4  Payload Explanation and Sensor Interface ==
--
  === 2.4.1  Device ID ===
--
  By default, the Device ID equal to the last 15 bits of IMEI.
  User can use (% style="color:blue" %)**AT+DEUI** (%%)to set Device ID
--
  **Example:**
  AT+DEUI=868411056754138
@@ -343,20 +343,14 @@
  The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
--
--
  === 2.4.2  Version Info ===
--
  Specify the software version: 0x64=100, means firmware version 1.00.
  For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
--
--
  === 2.4.3  Battery Info ===
--
  Check the battery voltage for NSPH01.
  Ex1: 0x0B45 = 2885mV
@@ -363,11 +363,8 @@
  Ex2: 0x0B49 = 2889mV
--
--
  === 2.4.4  Signal Strength ===
--
  NB-IoT Network signal Strength.
  **Ex1: 0x1d = 29**
@@ -382,25 +382,18 @@
  **99**      Not known or not detectable
--
--
  === 2.4.5  Soil PH ===
--
  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.
--For example, if the data you get from the register is (% style="color:blue" %)**__0x05 0xDC__**(%%), the PH content in the soil is
++For example, if the data you get from the register is **__0x05 0xDC__**, the PH content in the soil is
--(% style="color:blue" %)**0229(H) = 549(D) /100 = 5.49.**
++**0229(H) = 549(D) /100 = 5.49.**
--
--
  === 2.4.6  Soil Temperature ===
++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
--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 (% style="color:blue" %)**__0x09 0xEC__**(%%), the temperature content in the soil is
--
--
  **Example**:
  If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
@@ -407,62 +407,56 @@
  If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
--
--
  === 2.4.7  Timestamp ===
--
  Time stamp : 0x6315537b =1662342011
  Convert Unix timestamp to time 2022-9-5 9:40:11.
--
--
  === 2.4.8  Digital Interrupt ===
++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.
--Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NSPH01 will send a packet to the server.
--
  The command is:
--(% style="color:blue" %)**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]])**.**
++**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]])**.**
  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.
++Example:
--**Example:**
--
 x(00): Normal uplink packet.
 x(01): Interrupt Uplink Packet.
--
--
  === 2.4.9  +5V Output ===
--
  NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
  The 5V output time can be controlled by AT Command.
--(% style="color:blue" %)**AT+5VT=1000**
++**AT+5VT=1000**
  Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** **
--
  == 2.5  Downlink Payload ==
--
  By default, NSPH01 prints the downlink payload to console port.
++(% style="text-align:center" %)
  [[image:image-20220907154636-17.png]]
--(% style="color:blue" %)**Examples:**
--* (% style="color:#037691" %)** Set TDC**
++
++
++
++**Examples:**
++
++* **Set TDC**
++
  If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
  Payload:    01 00 00 1E    TDC=30S
@@ -469,19 +469,16 @@
  Payload:    01 00 00 3C    TDC=60S
--* (% style="color:#037691" %)** Reset**
++* **Reset**
  If payload = 0x04FF, it will reset the NSPH01
--* (% style="color:#037691" %)** INTMOD**
++* **INTMOD**
  Downlink Payload: 06000003, Set AT+INTMOD=3
--
--
  == 2.6  LED Indicator ==
--
  The NSPH01 has an internal LED which is to show the status of different state.
  * 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)
@@ -489,22 +489,16 @@
  * After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
  * For each uplink probe, LED will be on for 500ms.
--== 2.7  Installation and Maintain ==
++== 2.7 Installation and Maintain ==
++=== 2.7.1 Before measurement ===
--=== 2.7.1  Before measurement ===
--
--
  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.
++=== 2.7.2 Measurement ===
++**Measurement the soil surface:**
--=== 2.7.2  Measurement ===
--
--
--(% style="color:#037691" %)**Measurement the soil surface:**
--
--
  [[image:image-20220907154700-18.png]]
  Choose the proper measuring position. Split the surface soil according to the measured deep.
@@ -515,18 +515,14 @@
  Put soil over the probe after insert. And start to measure.
++**Measurement inside soil:**
--(% style="color:#037691" %)**Measurement inside soil:**
--
  Dig a hole with diameter > 20CM.
  Insert the probe inside, method like measure the surface.
++=== 2.7.3 Maintain Probe ===
--
--=== 2.7.3  Maintain Probe ===
--
--
 . pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
 . 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.
 . Probe reference electrode is also no strong, need to avoid strong force or hitting.
@@ -534,13 +534,12 @@
 . Avoid the probes to touch oily matter. Which will cause issue in accuracy.
 . The probe is IP68 can be put in water.
--== 2.8  PH and Temperature alarm function ==
++== 2.8 PH and Temperature alarm function ==
++➢ AT Command:
--(% style="color:#037691" %)**➢ AT Command:**
++AT+ PHALARM=min,max
--(% style="color:blue" %)**AT+ PHALARM=min,max**
--
  ² When min=3, and max≠0, Alarm higher than max
  ² When min≠0, and max=0, Alarm lower than min
@@ -547,11 +547,10 @@
  ² When min≠0 and max≠0, Alarm higher than max or lower than min
++Example:
--(% style="color:blue" %)**Example:**
++AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
--AT+ PHALARM =5,8       ~/~/ Alarm when PH lower than 5.
--
  AT+ TEMPALARM=min,max
  ² When min=0, and max≠0, Alarm higher than max
@@ -560,66 +560,50 @@
  ² When min≠0 and max≠0, Alarm higher than max or lower than min
++Example:
--(% style="color:blue" %)**Example:**
++AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
--AT+ TEMPALARM=20,30     ~/~/ Alarm when temperature lower than 20.
++== 2.9 Set the number of data to be uploaded and the recording time ==
++➢ AT Command:
--== 2.9  Set the number of data to be uploaded and the recording time ==
++AT+TR=900  ~/~/The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
++AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
--(% style="color:#037691" %)**➢ AT Command:**
--* (% style="color:blue" %)**AT+TR=900**     (%%)      ~/~/  The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
--* (% style="color:blue" %)**AT+NOUD=8**     (%%)  ~/~/    The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
++== 2.10 Read or Clear cached data ==
-- The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
++➢ AT Command:
--[[image:image-20221009000933-1.png||height="750" width="1043"]]
++AT+CDP    ~/~/ Read cached data
--
--
--== 2.10  Read or Clear cached data ==
--
--
--(% style="color:#037691" %)**➢ AT Command:**
--
--* (% style="color:blue" %)**AT+CDP**        (%%)  ~/~/  Read cached data
--* (% style="color:blue" %)**AT+CDP=0**    (%%) ~/~/  Clear cached data
--
  [[image:image-20220907154700-19.png]]
++AT+CDP=0    ~/~/ Clear cached data
--== 2.11  Calibration ==
++== 2.11 Calibration ==
  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).
  After stable, user can use below command to calibrate.
--
  [[image:image-20220907154700-20.png]]
--
--
  == 2.12  Firmware Change Log ==
++Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
--Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0>>https://www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0]]
++Upgrade Instruction: [[Upgrade Firmware>>path:#H5.1200BHowtoUpgradeFirmware]]
--Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
--
--
--
  == 2.13  Battery Analysis ==
--
  === 2.13.1  Battery Type ===
--
  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.
  The battery is designed to last for several years depends on the actually use environment and update interval.
@@ -632,18 +632,15 @@
  [[image:image-20220907154700-21.png]]
--
--
  === 2.13.2  Power consumption Analyze ===
--
  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.
  Instruction to use as below:
--(% style="color:blue" %)**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/]]
++**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/]]
--(% style="color:blue" %)**Step 2: **(%%) Open it and choose
++**Step 2: ** Open it and choose
  * Product Model
  * Uplink Interval
@@ -651,45 +651,34 @@
  And the Life expectation in difference case will be shown on the right.
--
++(% style="text-align:center" %)
  [[image:image-20220907154700-22.jpeg]]
--
  === 2.13.3  Battery Note ===
--
  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.
--
--
  === 2.13.4  Replace the battery ===
--
  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).
--
--
  = 3.  Access NB-IoT Module =
--
  Users can directly access the AT command set of the NB-IoT module.
  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/]]
--
++(% style="text-align:center" %)
  [[image:image-20220907154700-23.png]]
--
  = 4.  Using the AT Commands =
--
  == 4.1  Access AT Commands ==
--
  See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
  AT+<CMD>?                    : Help on <CMD>
@@ -700,9 +700,8 @@
  AT+<CMD>=?                  : Get the value
++**General Commands**
--(% style="color:#037691" %)**General Commands**
--
  AT                            : Attention
  AT?                           : Short Help
@@ -746,18 +746,16 @@
  AT+ PHCAL   : calibrate PH value
--(% style="color:#037691" %)**COAP Management**
++**COAP Management**
  AT+URI            : Resource parameters
++**UDP Management**
--(% style="color:#037691" %)**UDP Management**
--
  AT+CFM          : Upload confirmation mode (only valid for UDP)
++**MQTT Management**
--(% style="color:#037691" %)**MQTT Management**
--
  AT+CLIENT               : Get or Set MQTT client
  AT+UNAME             : Get or Set MQTT Username
@@ -768,63 +768,42 @@
  AT+SUBTOPIC          : Get or Set MQTT subscription topic
++**Information**
--(% style="color:#037691" %)**Information**
--
  AT+FDR              : Factory Data Reset
  AT+PWORD       : Serial Access Password
--
--
  = 5.  FAQ =
--
  == 5.1  How to Upgrade Firmware ==
--
  User can upgrade the firmware for 1) bug fix, 2) new feature release.
  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>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
--(% style="color:red" %)**Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.**
++**Notice, **NSPH01 **and **NSPH01 **share the same mother board. They use the same connection and method to update.**
--
--
  == 5.2  Can I calibrate NSPH01 to different soil types? ==
--
  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>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/LSE01/Calibrate_to_other_Soil_20220605.pdf]].
--
--
  = 6.  Trouble Shooting =
--
  == 6.1  Connection problem when uploading firmware ==
--
  **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]]
--
--
  == 6.2  AT Command input doesn't work ==
++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.
--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.
--
--
--
  = 7.  Order Info =
--
  Part Number**:** NSPH01
--
--
  = 8.  Packing Info =
--
  **Package Includes**:
  * NSPH01 NB-IoT pH Sensor x 1
@@ -832,15 +832,11 @@
  **Dimension and weight**:
--* Device Size: cm
--* Device Weight: g
--* Package Size / pcs : cm
--* Weight / pcs : g
++* Size: 195 x 125 x 55 mm
++* Weight:   420g
--
  = 9.  Support =
--
  * 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.
  * 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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