LSPH01-LoRaWAN Soil pH Sensor User Manual

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.

77

)))

78

79

(((

80

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.

)))

(((

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.

)))

(((

LSPH01 is powered by (% style="color:#4f81bd" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.

)))

(((

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.

)))

[[image:1654592435432-887.png]]

== 1.2 Features ==

* LoRaWAN 1.0.3 Class A

103

* Ultra-low power consumption

104

* Monitor soil pH with temperature compensation.

105

* Monitor soil temperature

106

* Monitor Battery Level

107

* Support pH calibration by end user

108

* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865

109

* AT Commands to change parameters

110

* Uplink on periodically

111

* Downlink to change configure

112

* IP66 Waterproof Enclosure

113

* IP68 rate for the Sensor Probe

114

* 8500mAh Battery for long term use

== 1.3 Probe Specification ==

119

120

121

(% style="color:#4f81bd" %)**Soil pH:**

122

123

* Range: 3 ~~ 10 pH

124

* Resolution: 0.01 pH

125

* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)

126

* Temperature Compensation Range: 0 ~~ 50℃

* IP68 Protection

* Length: 3.5 meters

(% style="color:#4f81bd" %)**Soil Temperature:**

* Range -40℃～85℃

* Resolution: 0.1℃

* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)

* IP68 Protection

* Length: 3.5 meters

== 1.4 Applications ==

* Smart Agriculture

== 1.5 Pin mapping and power on ==

147

148

[[image:1654592472094-134.png]]

= 2. Configure LSPH01 to connect to LoRaWAN network =

153

154

== 2.1 How it works ==

155

156

(((

157

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 >>path:#H5.UseATCommand]]to set the keys in the LSPH01.

)))

== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==

166

167

(((

168

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.

)))

(((

[[image:1654592492399-921.png]]

)))

(((

The LG308 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.

)))

(((

(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.

)))

(((

Each LSPH01 is shipped with a sticker with the default device EUI as below:

185

)))

186

187

[[image:image-20220607170145-1.jpeg]]

You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:

192

193

194

**Register the device**

195

196

197

[[image:1654592600093-601.png]]

198

199

200

**Add APP EUI and DEV EUI**

201

202

[[image:1654592619856-881.png]]

203

204

205

**Add APP EUI in the application**

206

207

[[image:1654592632656-512.png]]

**Add APP KEY**

[[image:1654592653453-934.png]]

214

215

216

(% style="color:blue" %)**Step 2**(%%): Power on LSPH01

217

218

219

Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).

220

221

[[image:image-20220607170442-2.png]]

(((

(% 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.

226

)))

227

228

[[image:1654592697690-910.png]]

== 2.3 Uplink Payload ==

233

234

(((

235

LSPH01 will uplink payload via LoRaWAN with below payload format:

)))

(((

Uplink payload includes in total 11 bytes.

)))

(((

Normal uplink payload:

244

)))

245

246

(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)

|(((

**Size**

**(bytes)**

)))|**2**|**2**|**2**|**2**|**1**|**1**|**1**

252

|**Value**|[[BAT>>path:#H2.3.1BatteryInfo]]|(((

253

[[Temperature>>path:#H2.3.2DS18B20Temperaturesensor]]

254

255

[[(Optional)>>path:#H2.3.2DS18B20Temperaturesensor]]

256

)))|[[Soil pH>>path:#H2.3.3SoilpH]]|[[Soil Temperature>>path:#H2.3.4SoilTemperature]]|(((

257

[[Digital Interrupt (Optional)>>path:#H2.3.5InterruptPin]]

258

)))|Reserve|(((

259

[[Message Type>>path:#H2.3.6MessageType]]

260

)))

261

262

[[image:1654592721645-318.png]]

=== 2.3.1 Battery Info ===

267

268

269

Check the battery voltage for LSPH01.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

=== 2.3.2 DS18B20 Temperature sensor ===

278

279

This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.

**Example**:

If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree

285

286

If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.

=== 2.3.3 Soil pH ===

Range: 0 ~~ 14 pH

**Example:**

(% style="color:#037691" %)** 0x02B7(H) = 695(D) = 6.95pH**

=== 2.3.4 Soil Temperature ===

Get Soil Temperature

**Example**:

If payload is: **0105H**: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree

308

309

If payload is: **FF3FH** : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.

=== 2.3.5 Interrupt Pin ===

314

315

This data field shows if this packet is generated by interrupt or not. [[Click here>>path:#H3.2SetInterruptMode]] for the hardware and software set up.

**Example:**

0x00: Normal uplink packet.

321

322

0x01: Interrupt Uplink Packet.

=== 2.3.6 Message Type ===

327

328

For a normal uplink payload, the message type is always 0x01.

Valid Message Type:

(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)

334

|**Message Type Code**|**Description**|**Payload**

335

|0x01|Normal Uplink|[[Normal Uplink Payload>>path:#H2.3200BUplinkPayload]]

336

|0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]

337

|0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]

=== 2.3.7 Decode payload in The Things Network ===

343

344

While using TTN network, you can add the payload format to decode the payload.

345

346

347

[[image:1654592762713-715.png]]

348

349

(((

350

The payload decoder function for TTN is here:

)))

(((

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/]]

)))

== 2.4 Uplink Interval ==

360

361

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>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H4.1ChangeUplinkInterval]]

== 2.5 Show Data in DataCake IoT Server ==

366

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:

368

369

370

(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**

371

372

(% 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:**

373

374

375

[[image:1654592790040-760.png]]

376

377

378

[[image:1654592800389-571.png]]

379

380

381

(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**

382

383

(% style="color:blue" %)**Step 4**(%%)**: Create LSPH01 product.**

384

385

[[image:1654592819047-535.png]]

[[image:1654592833877-762.png]]

390

391

392

[[image:1654592856403-259.png]]

393

394

395

(% style="color:blue" %)**Step 5**(%%)**: add payload decode**

396

397

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/]]

398

399

400

[[image:1654592878525-845.png]]

401

402

[[image:1654592892967-474.png]]

403

404

405

[[image:1654592905354-123.png]]

406

407

408

After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.

409

410

411

[[image:1654592917530-261.png]]

== 2.6 Installation and Maintain ==

416

417

=== 2.6.1 Before measurement ===

418

419

(((

420

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.

)))

=== 2.6.2 Measurement ===

426

427

428

(% style="color:#4f81bd" %)**Measurement the soil surface:**

429

430

[[image:1654592946732-634.png]]

431

432

Choose the proper measuring position. Split the surface soil according to the measured deep.

433

434

Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.

435

436

Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.

437

438

Put soil over the probe after insert. And start to measure.

439

440

441

(% style="color:#4f81bd" %)**Measurement inside soil:**

442

443

Dig a hole with diameter > 20CM.

444

445

Insert the probe inside, method like measure the surface.

=== 2.6.3 Maintain Probe ===

450

451

1. (((

452

pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.

453

)))

454

1. (((

455

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.

456

)))

457

1. (((

458

Probe reference electrode is also no strong, need to avoid strong force or hitting.

459

)))

460

1. (((

461

User should keep reference electrode wet while not use.

462

)))

463

1. (((

464

Avoid the probes to touch oily matter. Which will cause issue in accuracy.

465

)))

466

1. (((

467

The probe is IP68 can be put in water.

)))

== 2.7 Calibration ==

474

475

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).

476

477

After stable, user can use below command to calibrate.

478

479

[[image:image-20220607171149-4.png]]

480

481

482

(% style="color:#037691" %)**Calibration Payload**

483

484

(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)

|(((

**Size**

**(bytes)**

)))|**1**|**1**|**1**|**7**|**1**

|**Value**|(((

PH4

Calibrate value

)))|PH6.86 Calibrate value|(((

PH9.18

Calibrate value

)))|Reserve|(((

[[Message Type>>path:#H2.3.6MessageType]]

Always 0x03

)))

User can also send 0x14 downlink command to poll the current calibration payload.

505

506

[[image:image-20220607171416-7.jpeg]]

507

508

509

* Reply to the confirmation package: 14 01

510

* Reply to non-confirmed packet: 14 00

== 2.8 Frequency Plans ==

516

517

(((

518

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) ===

523

524

(% style="color:blue" %)**Uplink:**

525

526

868.1 - SF7BW125 to SF12BW125

527

528

868.3 - SF7BW125 to SF12BW125 and SF7BW250

529

530

868.5 - SF7BW125 to SF12BW125

531

532

867.1 - SF7BW125 to SF12BW125

533

534

867.3 - SF7BW125 to SF12BW125

535

536

867.5 - SF7BW125 to SF12BW125

537

538

867.7 - SF7BW125 to SF12BW125

539

540

867.9 - SF7BW125 to SF12BW125

868.8 - FSK

(% style="color:blue" %)**Downlink:**

546

547

Uplink channels 1-9 (RX1)

548

549

869.525 - SF9BW125 (RX2 downlink only)

=== 2.8.2 US902-928(US915) ===

554

555

(((

556

Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.

)))

(((

To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.

)))

(((

After Join success, the end node will switch to the correct sub band by:

565

)))

566

567

* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band

568

* 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)

569

570

571

=== 2.8.3 CN470-510 (CN470) ===

572

573

Used in China, Default use CHE=1

574

575

(% style="color:blue" %)**Uplink:**

576

577

486.3 - SF7BW125 to SF12BW125

578

579

486.5 - SF7BW125 to SF12BW125

580

581

486.7 - SF7BW125 to SF12BW125

582

583

486.9 - SF7BW125 to SF12BW125

584

585

487.1 - SF7BW125 to SF12BW125

586

587

487.3 - SF7BW125 to SF12BW125

588

589

487.5 - SF7BW125 to SF12BW125

590

591

487.7 - SF7BW125 to SF12BW125

592

593

594

(% style="color:blue" %)**Downlink:**

595

596

506.7 - SF7BW125 to SF12BW125

597

598

506.9 - SF7BW125 to SF12BW125

599

600

507.1 - SF7BW125 to SF12BW125

601

602

507.3 - SF7BW125 to SF12BW125

603

604

507.5 - SF7BW125 to SF12BW125

605

606

507.7 - SF7BW125 to SF12BW125

607

608

507.9 - SF7BW125 to SF12BW125

609

610

508.1 - SF7BW125 to SF12BW125

611

612

505.3 - SF12BW125 (RX2 downlink only)

=== 2.8.4 AU915-928(AU915) ===

617

618

(((

619

Frequency band as per definition in LoRaWAN 1.0.3 Regional document.

)))

(((

To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.

)))

(((

)))

(((

After Join success, the end node will switch to the correct sub band by:

632

)))

633

634

* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band

635

* 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) ===

640

641

(% style="color:blue" %)**Default Uplink channel:**

642

643

923.2 - SF7BW125 to SF10BW125

644

645

923.4 - SF7BW125 to SF10BW125

646

647

648

(% style="color:blue" %)**Additional Uplink Channel**:

649

650

(OTAA mode, channel added by JoinAccept message)

651

652

653

(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:

654

655

922.2 - SF7BW125 to SF10BW125

656

657

922.4 - SF7BW125 to SF10BW125

658

659

922.6 - SF7BW125 to SF10BW125

660

661

922.8 - SF7BW125 to SF10BW125

662

663

923.0 - SF7BW125 to SF10BW125

664

665

922.0 - SF7BW125 to SF10BW125

666

667

668

(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:

669

670

923.6 - SF7BW125 to SF10BW125

671

672

923.8 - SF7BW125 to SF10BW125

673

674

924.0 - SF7BW125 to SF10BW125

675

676

924.2 - SF7BW125 to SF10BW125

677

678

924.4 - SF7BW125 to SF10BW125

679

680

924.6 - SF7BW125 to SF10BW125

681

682

683

(% style="color:blue" %)**Downlink:**

684

685

Uplink channels 1-8 (RX1)

686

687

923.2 - SF10BW125 (RX2)

=== 2.8.6 KR920-923 (KR920) ===

692

693

(% style="color:blue" %)**Default channel:**

694

695

922.1 - SF7BW125 to SF12BW125

696

697

922.3 - SF7BW125 to SF12BW125

698

699

922.5 - SF7BW125 to SF12BW125

700

701

702

(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**

703

704

922.1 - SF7BW125 to SF12BW125

705

706

922.3 - SF7BW125 to SF12BW125

707

708

922.5 - SF7BW125 to SF12BW125

709

710

922.7 - SF7BW125 to SF12BW125

711

712

922.9 - SF7BW125 to SF12BW125

713

714

923.1 - SF7BW125 to SF12BW125

715

716

923.3 - SF7BW125 to SF12BW125

717

718

719

(% style="color:blue" %)**Downlink:**

720

721

Uplink channels 1-7(RX1)

722

723

921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)

=== 2.8.7 IN865-867 (IN865) ===

728

729

(% style="color:blue" %)**Uplink:**

730

731

865.0625 - SF7BW125 to SF12BW125

732

733

865.4025 - SF7BW125 to SF12BW125

734

735

865.9850 - SF7BW125 to SF12BW125

736

737

738

(% style="color:blue" %)**Downlink:**

739

740

Uplink channels 1-3 (RX1)

741

742

866.550 - SF10BW125 (RX2)

== 2.9 LED Indicator ==

747

748

The LSPH01 has an internal LED which is to show the status of different state.

749

750

* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.

751

* Blink once when device transmit a packet.

== 2.10 Firmware Change Log ==

756

757

758

**Firmware download link:**

759

760

[[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/]]

761

762

763

**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]

= 3. Configure LSPH01 via AT Command or LoRaWAN Downlink =

768

769

Use can configure LSPH01 via AT Command or LoRaWAN Downlink.

770

771

* AT Command Connection: See [[FAQ>>path:#H6.FAQ]].

772

* LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>path:/xwiki/bin/view/Main/]]

773

774

There are two kinds of commands to configure LSPH01, they are:

775

776

* (% style="color:#4f81bd" %)** General Commands**.

777

778

These commands are to configure:

779

780

* General system settings like: uplink interval.

781

* LoRaWAN protocol & radio related command.

782

783

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/]]

784

785

786

* (% style="color:#4f81bd" %)** Commands special design for LSPH01**

787

788

These commands only valid for LSPH01, as below:

== 3.1 Set Transmit Interval Time ==

793

794

Feature: Change LoRaWAN End Node Transmit Interval.

795

796

(% style="color:#037691" %)**AT Command: AT+TDC**

797

798

[[image:image-20220607171554-8.png]]

(% style="color:#037691" %)**Downlink Command: 0x01**

803

804

Format: Command Code (0x01) followed by 3 bytes time value.

805

806

If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.

807

808

* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds

809

* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds

== 3.2 Set Interrupt Mode ==

815

816

Feature, Set Interrupt mode for GPIO_EXIT.

817

818

(% style="color:#037691" %)**AT Command: AT+INTMOD**

819

820

[[image:image-20220607171716-9.png]]

821

822

823

(% style="color:#037691" %)**Downlink Command: 0x06**

824

825

Format: Command Code (0x06) followed by 3 bytes.

826

827

This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.

828

829

* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode

830

* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger

831

832

833

== 3.3 Calibrate Sensor ==

834

835

Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands

== 3.4 Get Firmware Version Info ==

840

841

Feature: use downlink to get firmware version.

842

843

(% style="color:#037691" %)**Downlink Command: 0x26**

844

845

[[image:image-20220607171917-10.png]]

846

847

* Reply to the confirmation package: 26 01

848

* Reply to non-confirmed packet: 26 00

849

850

851

Device will send an uplink after got this downlink command. With below payload:

852

853

Configures info payload:

854

855

(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)

856

|=(((

857

**Size(bytes)**

858

)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1**

859

|**Value**|Software Type|(((

Frequency

Band

)))|Sub-band|(((

Firmware

Version

)))|Sensor Type|Reserve|(((

868

[[Message Type>>path:#H2.3.6MessageType]]

Always 0x02

)))

**Software Type**: Always 0x03 for LSPH01

**Frequency Band**:

*0x01: EU868

*0x02: US915

*0x03: IN865

*0x04: AU915

*0x05: KZ865

*0x06: RU864

*0x07: AS923

*0x08: AS923-1

*0x09: AS923-2

*0xa0: AS923-3

**Sub-Band**: value 0x00 ~~ 0x08

899

900

901

**Firmware Version**: 0x0100, Means: v1.0.0 version

**Sensor Type**:

0x01: LSE01

0x02: LDDS75

0x03: LDDS20

0x04: LLMS01

0x05: LSPH01

0x06: LSNPK01

0x07: LDDS12

= 4. Battery & How to replace =

923

924

== 4.1 Battery Type ==

925

926

(((

927

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.

)))

(((

The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.

932

)))

933

934

[[image:1654593587246-335.png]]

935

936

937

Minimum Working Voltage for the LSPH01:

938

939

LSPH01: 2.45v ~~ 3.6v

== 4.2 Replace Battery ==

944

945

(((

946

Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.

)))

(((

And make sure the positive and negative pins match.

)))

== 4.3 Power Consumption Analyze ==

956

957

(((

958

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:

)))

**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:

967

968

[[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/]]

969

970

971

**Step 2**: Open it and choose

* Product Model

* Uplink Interval

* Working Mode

And the Life expectation in difference case will be shown on the right.

978

979

[[image:1654593605679-189.png]]

980

981

982

The battery related documents as below:

983

984

* (((

985

[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],

986

)))

987

* (((

988

[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],

989

)))

990

* (((

991

[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]

992

)))

993

994

[[image:image-20220607172042-11.png]]

=== 4.3.1 Battery Note ===

999

1000

(((

1001

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.

)))

=== 4.3.2 Replace the battery ===

1007

1008

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.

1009

1010

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)

= 5. Use AT Command =

1015

1016

== 5.1 Access AT Commands ==

1017

1018

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.

1019

1020

[[image:1654593668970-604.png]]

**Connection:**

(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**

1025

1026

(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD**

1027

1028

(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD**

1029

1030

1031

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:

1032

1033

1034

[[image:1654593712276-618.png]]

1035

1036

Valid AT Command please check [[Configure Device>>path:#H3.ConfigureLSPH01viaATCommandorLoRaWANDownlink]].

= 6. FAQ =

== 6.1 How to change the LoRa Frequency Bands/Region ==

1043

1044

You can follow the instructions for [[how to upgrade image>>path:#H2.10200BFirmwareChangeLog]].

1045

When downloading the images, choose the required image file for download.

= 7. Trouble Shooting =

1050

1051

== 7.1 AT Commands input doesn’t work ==

1052

1053

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.

= 8. Order Info =

Part Number: (% style="color:blue" %)**LSPH01-XX**

1060

1061

1062

(% style="color:blue" %)**XX**(%%): The default frequency band

1063

1064

* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band

1065

* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band

1066

* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band

1067

* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band

1068

* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band

1069

* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band

1070

* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band

1071

* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band

= 9. Packing Info =

**Package Includes**:

1078

1079

* LSPH01 LoRaWAN Soil Ph Sensor x 1

1080

1081

**Dimension and weight**:

* Device Size: cm

* Device Weight: g

* Package Size / pcs : cm

* 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.

1092

* 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]].

1093

1094

Wiki source code of LSPH01-LoRaWAN Soil pH Sensor User Manual

Applications

Navigation