Last modified by Xiaoling on 2024/01/17 16:19
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From version < 74.9 >
edited by Xiaoling
on 2022/06/07 17:51
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70 70  = 1. Introduction =
71 71  
72 72  == 1.1 ​What is LoRaWAN Soil pH Sensor ==
73 73  
74 -(((
75 75  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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77 77  
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79 79  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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81 81  
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83 83  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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85 85  
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87 87  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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89 89  
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91 91  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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93 93  
94 94  
95 95  [[image:1654592435432-887.png]]
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217 217  [[image:image-20220607170442-2.png]]
218 218  
219 219  
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221 221  (% 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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223 223  
224 224  [[image:1654592697690-910.png]]
225 225  
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227 227  
228 228  == 2.3 ​Uplink Payload ==
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231 231  LSPH01 will uplink payload via LoRaWAN with below payload format: 
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233 233  
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235 235  Uplink payload includes in total 11 bytes.
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237 237  
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239 239  Normal uplink payload:
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241 241  
242 242  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
243 243  |(((
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321 321  
322 322  === 2.3.6 Message Type ===
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325 325  For a normal uplink payload, the message type is always 0x01.
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327 327  
328 -(((
329 329  Valid Message Type:
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331 331  
332 332  
333 333  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
334 -|=**Message Type Code**|=**Description**|=**Payload**
315 +|**Message Type Code**|**Description**|**Payload**
335 335  |0x01|Normal Uplink|[[Normal Uplink Payload>>path:#H2.3200BUplinkPayload]]
336 336  |0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
337 337  |0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
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363 363  
364 364  == 2.5 ​Show Data in DataCake IoT Server ==
365 365  
366 -(((
367 367  [[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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375 375  (% 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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377 377  
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379 379  (% 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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381 381  
382 382  
383 383  [[image:1654592790040-760.png]]
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400 400  [[image:1654592856403-259.png]]
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404 404  (% style="color:blue" %)**Step 5**(%%)**: add payload decode**
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406 406  
407 -(((
408 408  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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410 410  
411 411  
412 412  [[image:1654592878525-845.png]]
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429 429  === 2.6.1 Before measurement ===
430 430  
431 431  (((
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433 433  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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439 439  === 2.6.2 Measurement ===
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441 441  
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443 443  (% style="color:#4f81bd" %)**Measurement the soil surface:**
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445 445  
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447 447  [[image:1654592946732-634.png]]
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449 449  
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451 451  Choose the proper measuring position. Split the surface soil according to the measured deep.
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453 453  
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455 455  Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
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457 457  
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459 459  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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461 461  
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463 463  Put soil over the probe after insert. And start to measure.
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469 469  
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471 471  (% style="color:#4f81bd" %)**Measurement inside soil:**
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473 473  
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475 475  Dig a hole with diameter > 20CM.
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477 477  
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479 479  Insert the probe inside, method like measure the surface.
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481 481  
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507 507  
508 508  == 2.7 Calibration ==
509 509  
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511 511  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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513 513  
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515 515  After stable, user can use below command to calibrate.
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517 517  
518 518  [[image:image-20220607171149-4.png]]
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520 520  
521 521  (% style="color:#037691" %)**Calibration Payload**
522 522  
523 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
464 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
524 524  |(((
525 525  **Size**
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540 540  Always 0x03
541 541  )))
542 542  
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543 543  User can also send 0x14 downlink command to poll the current calibration payload.
544 544  
545 545  [[image:image-20220607171416-7.jpeg]]
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675 675  * 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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678 678  === 2.8.5 AS920-923 & AS923-925 (AS923) ===
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681 681  (% style="color:blue" %)**Default Uplink channel:**
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683 683  
684 -(((
685 685  923.2 - SF7BW125 to SF10BW125
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689 689  923.4 - SF7BW125 to SF10BW125
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697 697  (% style="color:blue" %)**Additional Uplink Channel**:
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701 701  (OTAA mode, channel added by JoinAccept message)
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709 709  (% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
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713 713  922.2 - SF7BW125 to SF10BW125
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717 717  922.4 - SF7BW125 to SF10BW125
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721 721  922.6 - SF7BW125 to SF10BW125
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725 725  922.8 - SF7BW125 to SF10BW125
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729 729  923.0 - SF7BW125 to SF10BW125
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733 733  922.0 - SF7BW125 to SF10BW125
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741 741  (% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
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745 745  923.6 - SF7BW125 to SF10BW125
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749 749  923.8 - SF7BW125 to SF10BW125
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753 753  924.0 - SF7BW125 to SF10BW125
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757 757  924.2 - SF7BW125 to SF10BW125
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761 761  924.4 - SF7BW125 to SF10BW125
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765 765  924.6 - SF7BW125 to SF10BW125
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773 773  (% style="color:blue" %)**Downlink:**
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775 775  
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777 777  Uplink channels 1-8 (RX1)
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781 781  923.2 - SF10BW125 (RX2)
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846 846  * Blink once when device transmit a packet.
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849 849  == 2.10 ​Firmware Change Log ==
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922 922  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
923 923  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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925 925  == 3.3 Calibrate Sensor ==
926 926  
927 927  Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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939 939  * Reply to the confirmation package: 26 01
940 940  * Reply to non-confirmed packet: 26 00
941 941  
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942 942  Device will send an uplink after got this downlink command. With below payload:
943 943  
944 944  Configures info payload:
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1108 1108  
1109 1109  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.
1110 1110  
1111 -[[image:1654593668970-604.png]]
1005 +[[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"]]
1112 1112  
1113 1113  **Connection:**
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1122 1122  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:
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1124 1124  
1125 - [[image:1654593712276-618.png]]
1019 + [[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"]]
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1127 1127  Valid AT Command please check [[Configure Device>>path:#H3.ConfigureLSPH01viaATCommandorLoRaWANDownlink]].
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1180 1180  * 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.
1181 1181  * 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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