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.

78

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.

80

81

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.

82

83

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

84

85

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.

86

87

88

[[image:1654592435432-887.png]]

== 1.2 Features ==

* LoRaWAN 1.0.3 Class A

95

* Ultra-low power consumption

96

* Monitor soil pH with temperature compensation.

97

* Monitor soil temperature

98

* Monitor Battery Level

99

* Support pH calibration by end user

100

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

101

* AT Commands to change parameters

102

* Uplink on periodically

103

* Downlink to change configure

104

* IP66 Waterproof Enclosure

105

* IP68 rate for the Sensor Probe

106

* 8500mAh Battery for long term use

107

108

109

== 1.3 Probe Specification ==

110

111

112

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

113

114

* Range: 3 ~~ 10 pH

115

* Resolution: 0.01 pH

116

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

117

* 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 ==

136

137

[[image:1654592472094-134.png]]

= 2. Configure LSPH01 to connect to LoRaWAN network =

142

143

== 2.1 How it works ==

144

145

(((

146

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) ==

155

156

(((

157

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:

174

)))

175

176

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

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

181

182

183

**Register the device**

184

185

186

[[image:1654592600093-601.png]]

187

188

189

**Add APP EUI and DEV EUI**

190

191

[[image:1654592619856-881.png]]

192

193

194

**Add APP EUI in the application**

195

196

[[image:1654592632656-512.png]]

**Add APP KEY**

[[image:1654592653453-934.png]]

203

204

205

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

206

207

208

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

209

210

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

211

212

213

(% 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.

214

215

[[image:1654592697690-910.png]]

== 2.3 Uplink Payload ==

220

221

LSPH01 will uplink payload via LoRaWAN with below payload format:

222

223

Uplink payload includes in total 11 bytes.

224

225

Normal uplink payload:

226

227

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

|(((

**Size**

**(bytes)**

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

233

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

234

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

235

236

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

237

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

238

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

239

)))|Reserve|(((

240

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

241

)))

242

243

[[image:1654592721645-318.png]]

=== 2.3.1 Battery Info ===

248

249

250

Check the battery voltage for LSPH01.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

=== 2.3.2 DS18B20 Temperature sensor ===

259

260

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

266

267

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

289

290

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

=== 2.3.5 Interrupt Pin ===

295

296

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.

302

303

0x01: Interrupt Uplink Packet.

=== 2.3.6 Message Type ===

308

309

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

Valid Message Type:

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

315

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

316

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

317

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

318

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

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

323

324

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

325

326

327

[[image:1654592762713-715.png]]

328

329

(((

330

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 ==

340

341

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 ==

346

347

[[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:

348

349

350

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

351

352

(% 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:**

353

354

355

[[image:1654592790040-760.png]]

356

357

358

[[image:1654592800389-571.png]]

359

360

361

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

362

363

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

364

365

[[image:1654592819047-535.png]]

[[image:1654592833877-762.png]]

370

371

372

[[image:1654592856403-259.png]]

373

374

375

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

376

377

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/]]

378

379

380

[[image:1654592878525-845.png]]

381

382

[[image:1654592892967-474.png]]

383

384

385

[[image:1654592905354-123.png]]

386

387

388

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

389

390

391

[[image:1654592917530-261.png]]

== 2.6 Installation and Maintain ==

396

397

=== 2.6.1 Before measurement ===

398

399

(((

400

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 ===

406

407

408

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

409

410

[[image:1654592946732-634.png]]

411

412

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

413

414

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

415

416

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

417

418

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

419

420

421

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

422

423

Dig a hole with diameter > 20CM.

424

425

Insert the probe inside, method like measure the surface.

=== 2.6.3 Maintain Probe ===

430

431

1. (((

432

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

433

)))

434

1. (((

435

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.

436

)))

437

1. (((

438

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

439

)))

440

1. (((

441

User should keep reference electrode wet while not use.

442

)))

443

1. (((

444

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

445

)))

446

1. (((

447

The probe is IP68 can be put in water.

)))

== 2.7 Calibration ==

454

455

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).

456

457

After stable, user can use below command to calibrate.

458

459

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

460

461

462

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

463

464

(% 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.

486

487

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

488

489

490

* Reply to the confirmation package: 14 01

491

* Reply to non-confirmed packet: 14 00

492

493

== 2.8 Frequency Plans ==

494

495

(((

496

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) ===

501

502

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

503

504

868.1 - SF7BW125 to SF12BW125

505

506

868.3 - SF7BW125 to SF12BW125 and SF7BW250

507

508

868.5 - SF7BW125 to SF12BW125

509

510

867.1 - SF7BW125 to SF12BW125

511

512

867.3 - SF7BW125 to SF12BW125

513

514

867.5 - SF7BW125 to SF12BW125

515

516

867.7 - SF7BW125 to SF12BW125

517

518

867.9 - SF7BW125 to SF12BW125

868.8 - FSK

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

524

525

Uplink channels 1-9 (RX1)

526

527

869.525 - SF9BW125 (RX2 downlink only)

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

532

533

(((

534

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:

543

)))

544

545

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

546

* 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)

547

548

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

549

550

Used in China, Default use CHE=1

551

552

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

553

554

486.3 - SF7BW125 to SF12BW125

555

556

486.5 - SF7BW125 to SF12BW125

557

558

486.7 - SF7BW125 to SF12BW125

559

560

486.9 - SF7BW125 to SF12BW125

561

562

487.1 - SF7BW125 to SF12BW125

563

564

487.3 - SF7BW125 to SF12BW125

565

566

487.5 - SF7BW125 to SF12BW125

567

568

487.7 - SF7BW125 to SF12BW125

569

570

571

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

572

573

506.7 - SF7BW125 to SF12BW125

574

575

506.9 - SF7BW125 to SF12BW125

576

577

507.1 - SF7BW125 to SF12BW125

578

579

507.3 - SF7BW125 to SF12BW125

580

581

507.5 - SF7BW125 to SF12BW125

582

583

507.7 - SF7BW125 to SF12BW125

584

585

507.9 - SF7BW125 to SF12BW125

586

587

508.1 - SF7BW125 to SF12BW125

588

589

505.3 - SF12BW125 (RX2 downlink only)

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

594

595

(((

596

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:

609

)))

610

611

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

612

* 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)

613

614

=== 2.8.5 AS920-923 & AS923-925 (AS923) ===

615

616

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

617

618

923.2 - SF7BW125 to SF10BW125

619

620

923.4 - SF7BW125 to SF10BW125

621

622

623

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

624

625

(OTAA mode, channel added by JoinAccept message)

626

627

628

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

629

630

922.2 - SF7BW125 to SF10BW125

631

632

922.4 - SF7BW125 to SF10BW125

633

634

922.6 - SF7BW125 to SF10BW125

635

636

922.8 - SF7BW125 to SF10BW125

637

638

923.0 - SF7BW125 to SF10BW125

639

640

922.0 - SF7BW125 to SF10BW125

641

642

643

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

644

645

923.6 - SF7BW125 to SF10BW125

646

647

923.8 - SF7BW125 to SF10BW125

648

649

924.0 - SF7BW125 to SF10BW125

650

651

924.2 - SF7BW125 to SF10BW125

652

653

924.4 - SF7BW125 to SF10BW125

654

655

924.6 - SF7BW125 to SF10BW125

656

657

658

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

659

660

Uplink channels 1-8 (RX1)

661

662

923.2 - SF10BW125 (RX2)

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

667

668

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

669

670

922.1 - SF7BW125 to SF12BW125

671

672

922.3 - SF7BW125 to SF12BW125

673

674

922.5 - SF7BW125 to SF12BW125

675

676

677

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

678

679

922.1 - SF7BW125 to SF12BW125

680

681

922.3 - SF7BW125 to SF12BW125

682

683

922.5 - SF7BW125 to SF12BW125

684

685

922.7 - SF7BW125 to SF12BW125

686

687

922.9 - SF7BW125 to SF12BW125

688

689

923.1 - SF7BW125 to SF12BW125

690

691

923.3 - SF7BW125 to SF12BW125

692

693

694

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

695

696

Uplink channels 1-7(RX1)

697

698

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

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

703

704

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

705

706

865.0625 - SF7BW125 to SF12BW125

707

708

865.4025 - SF7BW125 to SF12BW125

709

710

865.9850 - SF7BW125 to SF12BW125

711

712

713

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

714

715

Uplink channels 1-3 (RX1)

716

717

866.550 - SF10BW125 (RX2)

== 2.9 LED Indicator ==

722

723

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

724

725

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

726

* Blink once when device transmit a packet.

727

728

== 2.10 Firmware Change Log ==

729

730

731

**Firmware download link:**

732

733

[[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/]]

734

735

736

**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 =

741

742

Use can configure LSPH01 via AT Command or LoRaWAN Downlink.

743

744

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

745

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

746

747

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

748

749

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

750

751

These commands are to configure:

752

753

* General system settings like: uplink interval.

754

* LoRaWAN protocol & radio related command.

755

756

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/]]

757

758

759

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

760

761

These commands only valid for LSPH01, as below:

== 3.1 Set Transmit Interval Time ==

766

767

Feature: Change LoRaWAN End Node Transmit Interval.

768

769

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

770

771

772

(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:710px" %)

773

|(% style="width:154px" %)**Command Example**|(% style="width:223px" %)**Function**|(% style="width:330px" %)**Response**

774

|(% style="width:154px" %)AT+TDC=?|(% style="width:223px" %)Show current transmit Interval|(% style="width:330px" %)(((

30000

OK

the interval is 30000ms = 30s

780

)))

781

|(% style="width:154px" %)AT+TDC=60000|(% style="width:223px" %)Set Transmit Interval|(% style="width:330px" %)(((

782

OK

783

784

Set transmit interval to 60000ms = 60 seconds

785

)))

786

787

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

788

789

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

790

791

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

792

793

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

794

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

795

796

== 3.2 Set Interrupt Mode ==

797

798

Feature, Set Interrupt mode for GPIO_EXIT.

799

800

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

801

802

[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSPH01-LoRaWAN%20Soil%20pH%20Sensor%20User%20Manual/WebHome/image-20220607153759-6.png?rev=1.1||alt="image-20220607153759-6.png"]]

803

804

805

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

806

807

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

808

809

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

810

811

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

812

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

813

814

== 3.3 Calibrate Sensor ==

815

816

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

== 3.4 Get Firmware Version Info ==

821

822

Feature: use downlink to get firmware version.

823

824

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

825

826

[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSPH01-LoRaWAN%20Soil%20pH%20Sensor%20User%20Manual/WebHome/image-20220607154718-7.png?rev=1.1||alt="image-20220607154718-7.png"]]

827

828

* Reply to the confirmation package: 26 01

829

* Reply to non-confirmed packet: 26 00

830

831

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

832

833

Configures info payload:

834

835

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

836

|=(((

837

**Size(bytes)**

838

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

839

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

Frequency

Band

)))|Sub-band|(((

Firmware

Version

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

848

[[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

879

880

881

**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 =

903

904

== 4.1 Battery Type ==

905

906

(((

907

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.

912

)))

913

914

[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSPH01-LoRaWAN%20Soil%20pH%20Sensor%20User%20Manual/WebHome/1654588469844-778.png?rev=1.1||alt="1654588469844-778.png"]]

915

916

917

Minimum Working Voltage for the LSPH01:

918

919

LSPH01: 2.45v ~~ 3.6v

== 4.2 Replace Battery ==

924

925

(((

926

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 ==

936

937

(((

938

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:

947

948

[[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/]]

949

950

951

**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.

958

959

[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSPH01-LoRaWAN%20Soil%20pH%20Sensor%20User%20Manual/WebHome/1654588577573-122.png?rev=1.1||alt="1654588577573-122.png"]]

960

961

962

The battery related documents as below:

963

964

* (((

965

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

966

)))

967

* (((

968

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

969

)))

970

* (((

971

[[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]]

972

)))

973

974

[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSPH01-LoRaWAN%20Soil%20pH%20Sensor%20User%20Manual/WebHome/image-20220607155856-8.png?rev=1.1||alt="image-20220607155856-8.png"]]

=== 4.3.1 Battery Note ===

979

980

(((

981

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 ===

987

988

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.

989

990

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 =

995

996

== 5.1 Access AT Commands ==

997

998

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.

999

1000

[[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:**

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

1005

1006

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

1007

1008

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

1009

1010

1011

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:

1012

1013

1014

[[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"]]

1015

1016

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

= 6. FAQ =

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

1023

1024

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

1025

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

= 7. Trouble Shooting =

1030

1031

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

1032

1033

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**

1040

1041

1042

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

1043

1044

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

1045

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

1046

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

1047

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

1048

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

1049

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

1050

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

1051

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

= 9. Packing Info =

**Package Includes**:

1057

1058

* LSPH01 LoRaWAN Soil Ph Sensor x 1

1059

1060

**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.

1070

* 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]].

1071

1072

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

Applications

Navigation