Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual

Last modified by Mengting Qiu on 2025/02/26 15:04

From version < 74.5 >

edited by Xiaoling
on 2022/06/07 17:48

To version < 70.2 >

edited by Xiaoling
on 2022/06/07 17:20

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  = 1. Introduction =
  == 1.1 What is LoRaWAN Soil pH Sensor ==
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  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.
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  LSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's** (% style="color:#4f81bd" %)pH (%%)**with high accuracy and stable value. The LSPH01 probe can be buried into soil for long time use.
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  The LoRa wireless technology used in LSPH01 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
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  LSPH01 is powered by (% style="color:#4f81bd" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
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  Each LSPH01 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
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  [[image:1654592435432-887.png]]
@@ -217,9 +217,7 @@
  [[image:image-20220607170442-2.png]]
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  (% 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.
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  [[image:1654592697690-910.png]]
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  == 2.3 Uplink Payload ==
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  LSPH01 will uplink payload via LoRaWAN with below payload format:
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  Uplink payload includes in total 11 bytes.
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  Normal uplink payload:
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  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
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  === 2.3.6 Message Type ===
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  For a normal uplink payload, the message type is always 0x01.
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  Valid Message Type:
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  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
--|=**Message Type Code**|=**Description**|=**Payload**
++|**Message Type Code**|**Description**|**Payload**
  |0x01|Normal Uplink|[[Normal Uplink Payload>>path:#H2.3200BUplinkPayload]]
  |0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
  |0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
@@ -363,21 +363,12 @@
  == 2.5 Show Data in DataCake IoT Server ==
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  [[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:
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  (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
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  (% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
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  [[image:1654592790040-760.png]]
@@ -400,13 +400,9 @@
  [[image:1654592856403-259.png]]
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  (% style="color:blue" %)**Step 5**(%%)**: add payload decode**
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  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/]]
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  [[image:1654592878525-845.png]]
@@ -429,10 +429,8 @@
  === 2.6.1 Before measurement ===
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  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.
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  === 2.6.2 Measurement ===
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  (% style="color:#4f81bd" %)**Measurement the soil surface:**
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  [[image:1654592946732-634.png]]
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  Choose the proper measuring position. Split the surface soil according to the measured deep.
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  Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
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  Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
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  Put soil over the probe after insert. And start to measure.
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  (% style="color:#4f81bd" %)**Measurement inside soil:**
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  Dig a hole with diameter > 20CM.
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  Insert the probe inside, method like measure the surface.
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  == 2.7 Calibration ==
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  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).
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  After stable, user can use below command to calibrate.
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  [[image:image-20220607171149-4.png]]
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  Always 0x03
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  User can also send 0x14 downlink command to poll the current calibration payload.
  [[image:image-20220607171416-7.jpeg]]
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  * 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)
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  === 2.8.3 CN470-510 (CN470) ===
  Used in China, Default use CHE=1
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  * 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)
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  === 2.8.5 AS920-923 & AS923-925 (AS923) ===
  (% style="color:blue" %)**Default Uplink channel:**
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  * Blink once when device transmit a packet.
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  == 2.10 Firmware Change Log ==
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  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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  == 3.3 Calibrate Sensor ==
  Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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  * Reply to the confirmation package: 26 01
  * Reply to non-confirmed packet: 26 00
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  Device will send an uplink after got this downlink command. With below payload:
  Configures info payload:
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  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]]
++[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSPH01-LoRaWAN%20Soil%20pH%20Sensor%20User%20Manual/WebHome/1654589001411-343.png?rev=1.1||alt="1654589001411-343.png"]]
  **Connection:**
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  In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSPH01. LSPH01 will output system info once power on as below:
-- [[image:1654593712276-618.png]]
++ [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSPH01-LoRaWAN%20Soil%20pH%20Sensor%20User%20Manual/WebHome/1654589062541-567.png?rev=1.1||alt="1654589062541-567.png"]]
  Valid AT Command please check [[Configure Device>>path:#H3.ConfigureLSPH01viaATCommandorLoRaWANDownlink]].
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  * 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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