Changes for page LSPH01 -- LoRaWAN Soil pH Sensor User Manual

Last modified by Bei Jinggeng on 2024/08/02 17:52

From version < 90.7 >

edited by Xiaoling
on 2022/06/25 16:55

To version < 98.13 >

edited by Xiaoling
on 2022/10/27 13:43

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@@ -4,70 +4,23 @@
++
  **Table of Contents:**
--* [[1. Introduction>>path:#H1.Introduction]]
--** [[1.1 What is LoRaWAN Soil pH Sensor>>path:#H1.1200BWhatisLoRaWANSoilpHSensor]]
--** [[1.2 Features>>path:#H200B1.2Features]]
--** [[1.3 Probe Specification>>path:#H1.3ProbeSpecification]]
--** [[1.4 Applications>>path:#H1.4200BApplications]]
--** [[1.5 Pin mapping and power on>>path:#H1.5Pinmappingandpoweron]]
--* [[2. Configure LSPH01 to connect to LoRaWAN network>>path:#H2.ConfigureLSPH01toconnecttoLoRaWANnetwork]]
--** [[2.1 How it works>>path:#H2.1Howitworks]]
--** [[2.2 Quick guide to connect to LoRaWAN server (OTAA)>>path:#H2.2200BQuickguidetoconnecttoLoRaWANserver28OTAA29]]
--** [[2.3 Uplink Payload>>path:#H2.3200BUplinkPayload]]
--*** [[2.3.1 Battery Info>>path:#H2.3.1BatteryInfo]]
--*** [[2.3.2 DS18B20 Temperature sensor>>path:#H2.3.2DS18B20Temperaturesensor]]
--*** [[2.3.3 Soil pH>>path:#H2.3.3SoilpH]]
--*** [[2.3.4 Soil Temperature>>path:#H2.3.4SoilTemperature]]
--*** [[2.3.5 Interrupt Pin>>path:#H2.3.5InterruptPin]]
--*** [[2.3.6 Message Type>>path:#H2.3.6MessageType]]
--*** [[2.3.7 Decode payload in The Things Network>>path:#H2.3.7DecodepayloadinTheThingsNetwork]]
--** [[2.4 Uplink Interval>>path:#H2.4UplinkInterval]]
--** [[2.5 Show Data in DataCake IoT Server>>path:#H2.5200BShowDatainDataCakeIoTServer]]
--** [[2.6 Installation and Maintain>>path:#H2.6InstallationandMaintain]]
--*** [[2.6.1 Before measurement>>path:#H2.6.1Beforemeasurement]]
--*** [[2.6.2 Measurement>>path:#H2.6.2Measurement]]
--*** [[2.6.3 Maintain Probe>>path:#H2.6.3MaintainProbe]]
--** [[2.7 Calibration>>path:#H2.7Calibration]]
--** [[2.8 Frequency Plans>>path:#H2.8FrequencyPlans]]
--*** [[2.8.1 EU863-870 (EU868)>>path:#H2.8.1EU863-87028EU86829]]
--*** [[2.8.2 US902-928(US915)>>path:#H2.8.2US902-92828US91529]]
--*** [[2.8.3 CN470-510 (CN470)>>path:#H2.8.3CN470-51028CN47029]]
--*** [[2.8.4 AU915-928(AU915)>>path:#H2.8.4AU915-92828AU91529]]
--*** [[2.8.5 AS920-923 & AS923-925 (AS923)>>path:#H2.8.5AS920-92326AS923-92528AS92329]]
--*** [[2.8.6 KR920-923 (KR920)>>path:#H2.8.6KR920-92328KR92029]]
--*** [[2.8.7 IN865-867 (IN865)>>path:#H2.8.7IN865-86728IN86529]]
--** [[2.9 LED Indicator>>path:#H2.9LEDIndicator]]
--** [[2.10 Firmware Change Log>>path:#H2.10200BFirmwareChangeLog]]
--* [[3. Configure LSPH01 via AT Command or LoRaWAN Downlink>>path:#H3.ConfigureLSPH01viaATCommandorLoRaWANDownlink]]
--** [[3.1 Set Transmit Interval Time>>path:#H3.1SetTransmitIntervalTime]]
--** [[3.2 Set Interrupt Mode>>path:#H3.2SetInterruptMode]]
--** [[3.3 Calibrate Sensor>>path:#H3.3CalibrateSensor]]
--** [[3.4 Get Firmware Version Info>>path:#H3.4GetFirmwareVersionInfo]]
--* [[4. Battery & How to replace>>path:#H4.Battery26Howtoreplace]]
--** [[4.1 Battery Type>>path:#H4.1BatteryType]]
--** [[4.2 Replace Battery>>path:#H4.2ReplaceBattery]]
--** [[4.3 Power Consumption Analyze>>path:#H4.3PowerConsumptionAnalyze]]
--*** [[4.3.1 Battery Note>>path:#H4.3.1200BBatteryNote]]
--*** [[4.3.2 Replace the battery>>path:#H200B4.3.2Replacethebattery]]
--* [[5. Use AT Command>>path:#H5.UseATCommand]]
--** [[5.1 Access AT Commands>>path:#H5.1AccessATCommands]]
--* [[6. FAQ>>path:#H6.FAQ]]
--** [[6.1 How to change the LoRa Frequency Bands/Region>>path:#H6.1HowtochangetheLoRaFrequencyBands2FRegion]]
--* [[7. Trouble Shooting>>path:#H7.TroubleShooting]]
--** [[7.1 AT Commands input doesn’t work>>path:#H7.1ATCommandsinputdoesn2019twork]]
--* [[8. Order Info>>path:#H8.OrderInfo]]
--* [[9. Packing Info>>path:#H9.200BPackingInfo]]
--* [[10. Support>>path:#H10.A0200BSupport]]
++{{toc/}}
++
++
++
++
++
  = 1. Introduction =
++
  == 1.1 What is LoRaWAN Soil pH Sensor ==
--(((
--
++(((
  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.
  )))
@@ -92,9 +92,9 @@
--
  == 1.2 Features ==
++
  * LoRaWAN 1.0.3 Class A
  * Ultra-low power consumption
  * Monitor soil pH with temperature compensation.
@@ -109,6 +109,8 @@
  * IP68 rate for the Sensor Probe
  * 8500mAh Battery for long term use
++
++
  == 1.3 Probe Specification ==
@@ -129,12 +129,17 @@
  * IP68 Protection
  * Length: 3.5 meters
++
++
  == 1.4 Applications ==
++
  * Smart Agriculture
++
  == 1.5 Pin mapping and power on ==
++
  [[image:1654592472094-134.png]]
@@ -141,19 +141,23 @@
  = 2. Configure LSPH01 to connect to LoRaWAN network =
++
  == 2.1 How it works ==
++
  (((
  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.
  )))
  (((
--In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H5.UseATCommand"]]to set the keys in the LSPH01.
++In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H5.UseATCommand"]]to set the keys in the LSPH01.
  )))
++
  == 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
++
  (((
  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.
  )))
@@ -219,6 +219,8 @@
  (((
  (% 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.
++
++
  )))
  [[image:1654592697690-910.png]]
@@ -227,6 +227,7 @@
  == 2.3 Uplink Payload ==
++
  (((
  LSPH01 will uplink payload via LoRaWAN with below payload format:
  )))
@@ -239,14 +239,11 @@
  Normal uplink payload:
  )))
--(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
--|=(% style="width: 62.5px;" %)(((
--**Size (bytes)**
--)))|=(% style="width: 62.5px;" %)**2**|=(% style="width: 62.5px;" %)**2**|=**2**|=**2**|=**1**|=**1**|=**1**
++(% border="1" cellspacing="5" style="background-color:#ffffcc; width:510px" %)
++|=(% style="width: 60px;" %)(((
++**Size (bytes)**)))|=(% style="width: 30px;" %)**2**|=(% style="width: 70px;" %)**2**|=(% style="width: 70px;" %)**2**|=(% style="width: 60px;" %)**2**|=(% style="width: 70px;" %)**1**|=(% style="width: 50px;" %)**1**|=(% style="width: 80px;" %)**1**
  |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(% style="width:62.5px" %)(((
--[[Temperature>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
--
--[[(Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
++[[Temperature (Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]]
  )))|[[Soil pH>>||anchor="H2.3.3SoilpH"]]|[[Soil Temperature>>||anchor="H2.3.4SoilTemperature"]]|(((
  [[Digital Interrupt (Optional)>>||anchor="H2.3.5InterruptPin"]]
  )))|Reserve|(((
@@ -270,6 +270,7 @@
  === 2.3.2 DS18B20 Temperature sensor ===
++
  This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
@@ -283,6 +283,7 @@
  === 2.3.3 Soil pH ===
++
  Range: 0 ~~ 14 pH
  **Example:**
@@ -293,6 +293,7 @@
  === 2.3.4 Soil Temperature ===
++
  Get Soil Temperature
@@ -306,6 +306,7 @@
  === 2.3.5 Interrupt Pin ===
++
  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.
@@ -319,6 +319,7 @@
  === 2.3.6 Message Type ===
++
  (((
  For a normal uplink payload, the message type is always 0x01.
  )))
@@ -334,6 +334,8 @@
  |(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]]
  |(% style="width:160px" %)0x03|(% style="width:163px" %)Reply Calibration Info|(% style="width:173px" %)[[Calibration Payload>>||anchor="H2.7Calibration"]]
++
++
  === 2.3.7 Decode payload in The Things Network ===
  While using TTN network, you can add the payload format to decode the payload.
@@ -346,7 +346,7 @@
  )))
  (((
--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/]]
++LSPH01 TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
  )))
@@ -353,6 +353,7 @@
  == 2.4 Uplink Interval ==
++
  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"]]
@@ -359,6 +359,7 @@
  == 2.5 Show Data in DataCake IoT Server ==
++
  (((
  [[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:
  )))
@@ -401,7 +401,7 @@
  )))
  (((
--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/]]
++Download Datacake decoder from: [[https:~~/~~/www.dropbox.com/sh/pj7cgmgqg3gx3ta/AABYFbg1DVOOR9Hmr1mLSBkga?dl=0>>url:https://www.dropbox.com/sh/pj7cgmgqg3gx3ta/AABYFbg1DVOOR9Hmr1mLSBkga?dl=0]]
  )))
@@ -422,8 +422,10 @@
  == 2.6 Installation and Maintain ==
++
  === 2.6.1 Before measurement ===
++
  (((
  (((
  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.
@@ -441,6 +441,8 @@
  (((
  [[image:1654592946732-634.png]]
++
++
  )))
  (((
@@ -452,7 +452,7 @@
  )))
  (((
--Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
++Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
  )))
  (((
@@ -479,6 +479,7 @@
  === 2.6.3 Maintain Probe ===
++
 . (((
  pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
  )))
@@ -503,6 +503,7 @@
  == 2.7 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).
  )))
@@ -545,13 +545,16 @@
  == 2.8 Frequency Plans ==
++
  (((
  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.
  )))
++
  === 2.8.1 EU863-870 (EU868) ===
++
  (((
  (% style="color:blue" %)**Uplink:**
  )))
@@ -612,6 +612,7 @@
  === 2.8.2 US902-928(US915) ===
++
  (((
  Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
  )))
@@ -625,15 +625,13 @@
  )))
  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
--* 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)
++* 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)
--
--
--
  === 2.8.3 CN470-510 (CN470) ===
++
  (((
  Used in China, Default use CHE=1
  )))
@@ -722,6 +722,7 @@
  === 2.8.4 AU915-928(AU915) ===
++
  (((
  Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
  )))
@@ -739,15 +739,13 @@
  )))
  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
--* 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)
++* 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)
--
--
--
  === 2.8.5 AS920-923 & AS923-925 (AS923) ===
++
  (((
  (% style="color:blue" %)**Default Uplink channel:**
  )))
@@ -856,6 +856,7 @@
  === 2.8.6 KR920-923 (KR920) ===
++
  (((
  (% style="color:blue" %)**Default channel:**
  )))
@@ -928,6 +928,7 @@
  === 2.8.7 IN865-867 (IN865) ===
++
  (((
  (% style="color:blue" %)**Uplink:**
  )))
@@ -964,6 +964,7 @@
  == 2.9 LED Indicator ==
++
  The LSPH01 has an internal LED which is to show the status of different state.
  * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
@@ -971,17 +971,12 @@
--
--
--
  == 2.10 Firmware Change Log ==
--**Firmware download link:**
++**Firmware download link: **[[https:~~/~~/www.dropbox.com/sh/xtm5tw37mewaw99/AAD0uy06odmreQQ7vMzZYVIGa?dl=0>>https://www.dropbox.com/sh/xtm5tw37mewaw99/AAD0uy06odmreQQ7vMzZYVIGa?dl=0]]
--[[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/]]
--
  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
@@ -988,6 +988,7 @@
  = 3. Configure LSPH01 via AT Command or LoRaWAN Downlink =
++
  (((
  Use can configure LSPH01 via AT Command or LoRaWAN Downlink.
  )))
@@ -1019,7 +1019,7 @@
  )))
  (((
--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>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
++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>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
  )))
  (((
@@ -1038,6 +1038,7 @@
  == 3.1 Set Transmit Interval Time ==
++
  Feature: Change LoRaWAN End Node Transmit Interval.
  (% style="color:#037691" %)**AT Command: AT+TDC**
@@ -1064,11 +1064,13 @@
  Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
++
  )))
  == 3.2 Set Interrupt Mode ==
++
  Feature, Set Interrupt mode for GPIO_EXIT.
  (% style="color:#037691" %)**AT Command: AT+INTMOD**
@@ -1103,6 +1103,7 @@
  == 3.3 Calibrate Sensor ==
++
  Detail See [[Calibration Guide>>||anchor="H2.7Calibration"]] for the user of 0x13 and 0x14 downlink commands
@@ -1109,6 +1109,7 @@
  == 3.4 Get Firmware Version Info ==
++
  Feature: use downlink to get firmware version.
  (% style="color:#037691" %)**Downlink Command: 0x26**
@@ -1191,8 +1191,10 @@
  = 4. Battery & How to replace =
++
  == 4.1 Battery Type ==
++
  (((
  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.
  )))
@@ -1199,6 +1199,8 @@
  (((
  The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
++
++
  )))
  [[image:1654593587246-335.png]]
@@ -1212,6 +1212,7 @@
  == 4.2 Replace Battery ==
++
  (((
  Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
  )))
@@ -1224,6 +1224,7 @@
  == 4.3 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.
  )))
@@ -1233,7 +1233,7 @@
  )))
--(% style="color:red" %)**Step 1**(%%): Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
++(% style="color:#037691" %)**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/]]
@@ -1267,6 +1267,7 @@
  === 4.3.1 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.
  )))
@@ -1275,12 +1275,13 @@
  === 4.3.2 Replace the battery ===
++
  (((
  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.
  )))
  (((
--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)
++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)
  )))
@@ -1287,12 +1287,16 @@
  = 5. Use AT Command =
++
  == 5.1 Access AT Commands ==
++
  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.
++
  [[image:1654593668970-604.png]]
++
  **Connection:**
  (% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
@@ -1314,16 +1314,21 @@
  = 6. FAQ =
++
  == 6.1 How to change the LoRa Frequency Bands/Region ==
++
  You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]].
  When downloading the images, choose the required image file for download.
++
  = 7. Trouble Shooting =
++
  == 7.1 AT Commands 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 (% 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.
@@ -1330,6 +1330,7 @@
  = 8. Order Info =
++
  Part Number: (% style="color:blue" %)**LSPH01-XX**
@@ -1345,8 +1345,6 @@
  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
--
--
  = 9. Packing Info =
@@ -1362,10 +1362,9 @@
  * Weight / pcs : g
--
--
  = 10. 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]].

Changes for page LSPH01 -- LoRaWAN Soil pH Sensor User Manual

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