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.

76

77

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.

78

79

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.

80

81

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

82

83

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.

84

85

86

[[image:1654592435432-887.png]]

== 1.2 Features ==

* LoRaWAN 1.0.3 Class A

93

* Ultra-low power consumption

94

* Monitor soil pH with temperature compensation.

95

* Monitor soil temperature

96

* Monitor Battery Level

97

* Support pH calibration by end user

98

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

99

* AT Commands to change parameters

100

* Uplink on periodically

101

* Downlink to change configure

102

* IP66 Waterproof Enclosure

103

* IP68 rate for the Sensor Probe

104

* 8500mAh Battery for long term use

== 1.3 Probe Specification ==

109

110

111

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

112

113

* Range: 3 ~~ 10 pH

114

* Resolution: 0.01 pH

115

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

116

* 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 ==

137

138

[[image:1654592472094-134.png]]

= 2. Configure LSPH01 to connect to LoRaWAN network =

143

144

== 2.1 How it works ==

145

146

(((

147

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) ==

156

157

(((

158

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:

175

)))

176

177

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

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

182

183

184

**Register the device**

185

186

187

[[image:1654592600093-601.png]]

188

189

190

**Add APP EUI and DEV EUI**

191

192

[[image:1654592619856-881.png]]

193

194

195

**Add APP EUI in the application**

196

197

[[image:1654592632656-512.png]]

**Add APP KEY**

[[image:1654592653453-934.png]]

204

205

206

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

207

208

209

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

210

211

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

212

213

214

(% 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.

215

216

[[image:1654592697690-910.png]]

== 2.3 Uplink Payload ==

221

222

LSPH01 will uplink payload via LoRaWAN with below payload format:

223

224

Uplink payload includes in total 11 bytes.

225

226

Normal uplink payload:

227

228

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

|(((

**Size**

**(bytes)**

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

234

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

235

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

236

237

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

238

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

239

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

240

)))|Reserve|(((

241

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

242

)))

243

244

[[image:1654592721645-318.png]]

=== 2.3.1 Battery Info ===

249

250

251

Check the battery voltage for LSPH01.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

=== 2.3.2 DS18B20 Temperature sensor ===

260

261

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

267

268

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

290

291

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

=== 2.3.5 Interrupt Pin ===

296

297

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.

303

304

0x01: Interrupt Uplink Packet.

=== 2.3.6 Message Type ===

309

310

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

Valid Message Type:

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

316

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

317

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

318

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

319

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

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

325

326

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

327

328

329

[[image:1654592762713-715.png]]

330

331

(((

332

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 ==

342

343

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 ==

348

349

[[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:

350

351

352

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

353

354

(% 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:**

355

356

357

[[image:1654592790040-760.png]]

358

359

360

[[image:1654592800389-571.png]]

361

362

363

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

364

365

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

366

367

[[image:1654592819047-535.png]]

[[image:1654592833877-762.png]]

372

373

374

[[image:1654592856403-259.png]]

375

376

377

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

378

379

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/]]

380

381

382

[[image:1654592878525-845.png]]

383

384

[[image:1654592892967-474.png]]

385

386

387

[[image:1654592905354-123.png]]

388

389

390

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

391

392

393

[[image:1654592917530-261.png]]

== 2.6 Installation and Maintain ==

398

399

=== 2.6.1 Before measurement ===

400

401

(((

402

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 ===

408

409

410

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

411

412

[[image:1654592946732-634.png]]

413

414

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

415

416

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

417

418

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

419

420

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

421

422

423

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

424

425

Dig a hole with diameter > 20CM.

426

427

Insert the probe inside, method like measure the surface.

=== 2.6.3 Maintain Probe ===

432

433

1. (((

434

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

435

)))

436

1. (((

437

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.

438

)))

439

1. (((

440

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

441

)))

442

1. (((

443

User should keep reference electrode wet while not use.

444

)))

445

1. (((

446

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

447

)))

448

1. (((

449

The probe is IP68 can be put in water.

)))

== 2.7 Calibration ==

456

457

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).

458

459

After stable, user can use below command to calibrate.

460

461

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

462

463

464

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

465

466

(% 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.

487

488

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

489

490

491

* Reply to the confirmation package: 14 01

492

* Reply to non-confirmed packet: 14 00

== 2.8 Frequency Plans ==

498

499

(((

500

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) ===

505

506

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

507

508

868.1 - SF7BW125 to SF12BW125

509

510

868.3 - SF7BW125 to SF12BW125 and SF7BW250

511

512

868.5 - SF7BW125 to SF12BW125

513

514

867.1 - SF7BW125 to SF12BW125

515

516

867.3 - SF7BW125 to SF12BW125

517

518

867.5 - SF7BW125 to SF12BW125

519

520

867.7 - SF7BW125 to SF12BW125

521

522

867.9 - SF7BW125 to SF12BW125

868.8 - FSK

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

528

529

Uplink channels 1-9 (RX1)

530

531

869.525 - SF9BW125 (RX2 downlink only)

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

536

537

(((

538

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:

547

)))

548

549

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

550

* 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)

551

552

553

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

554

555

Used in China, Default use CHE=1

556

557

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

558

559

486.3 - SF7BW125 to SF12BW125

560

561

486.5 - SF7BW125 to SF12BW125

562

563

486.7 - SF7BW125 to SF12BW125

564

565

486.9 - SF7BW125 to SF12BW125

566

567

487.1 - SF7BW125 to SF12BW125

568

569

487.3 - SF7BW125 to SF12BW125

570

571

487.5 - SF7BW125 to SF12BW125

572

573

487.7 - SF7BW125 to SF12BW125

574

575

576

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

577

578

506.7 - SF7BW125 to SF12BW125

579

580

506.9 - SF7BW125 to SF12BW125

581

582

507.1 - SF7BW125 to SF12BW125

583

584

507.3 - SF7BW125 to SF12BW125

585

586

507.5 - SF7BW125 to SF12BW125

587

588

507.7 - SF7BW125 to SF12BW125

589

590

507.9 - SF7BW125 to SF12BW125

591

592

508.1 - SF7BW125 to SF12BW125

593

594

505.3 - SF12BW125 (RX2 downlink only)

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

599

600

(((

601

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:

614

)))

615

616

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

617

* 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)

618

619

620

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

621

622

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

623

624

923.2 - SF7BW125 to SF10BW125

625

626

923.4 - SF7BW125 to SF10BW125

627

628

629

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

630

631

(OTAA mode, channel added by JoinAccept message)

632

633

634

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

635

636

922.2 - SF7BW125 to SF10BW125

637

638

922.4 - SF7BW125 to SF10BW125

639

640

922.6 - SF7BW125 to SF10BW125

641

642

922.8 - SF7BW125 to SF10BW125

643

644

923.0 - SF7BW125 to SF10BW125

645

646

922.0 - SF7BW125 to SF10BW125

647

648

649

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

650

651

923.6 - SF7BW125 to SF10BW125

652

653

923.8 - SF7BW125 to SF10BW125

654

655

924.0 - SF7BW125 to SF10BW125

656

657

924.2 - SF7BW125 to SF10BW125

658

659

924.4 - SF7BW125 to SF10BW125

660

661

924.6 - SF7BW125 to SF10BW125

662

663

664

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

665

666

Uplink channels 1-8 (RX1)

667

668

923.2 - SF10BW125 (RX2)

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

673

674

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

675

676

922.1 - SF7BW125 to SF12BW125

677

678

922.3 - SF7BW125 to SF12BW125

679

680

922.5 - SF7BW125 to SF12BW125

681

682

683

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

684

685

922.1 - SF7BW125 to SF12BW125

686

687

922.3 - SF7BW125 to SF12BW125

688

689

922.5 - SF7BW125 to SF12BW125

690

691

922.7 - SF7BW125 to SF12BW125

692

693

922.9 - SF7BW125 to SF12BW125

694

695

923.1 - SF7BW125 to SF12BW125

696

697

923.3 - SF7BW125 to SF12BW125

698

699

700

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

701

702

Uplink channels 1-7(RX1)

703

704

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

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

709

710

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

711

712

865.0625 - SF7BW125 to SF12BW125

713

714

865.4025 - SF7BW125 to SF12BW125

715

716

865.9850 - SF7BW125 to SF12BW125

717

718

719

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

720

721

Uplink channels 1-3 (RX1)

722

723

866.550 - SF10BW125 (RX2)

== 2.9 LED Indicator ==

728

729

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

730

731

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

732

* Blink once when device transmit a packet.

733

734

735

== 2.10 Firmware Change Log ==

736

737

738

**Firmware download link:**

739

740

[[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/]]

741

742

743

**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 =

748

749

Use can configure LSPH01 via AT Command or LoRaWAN Downlink.

750

751

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

752

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

753

754

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

755

756

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

757

758

These commands are to configure:

759

760

* General system settings like: uplink interval.

761

* LoRaWAN protocol & radio related command.

762

763

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/]]

764

765

766

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

767

768

These commands only valid for LSPH01, as below:

== 3.1 Set Transmit Interval Time ==

773

774

Feature: Change LoRaWAN End Node Transmit Interval.

775

776

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

777

778

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

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

783

784

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

785

786

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

787

788

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

789

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

== 3.2 Set Interrupt Mode ==

795

796

Feature, Set Interrupt mode for GPIO_EXIT.

797

798

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

799

800

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

801

802

803

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

804

805

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

806

807

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

808

809

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

810

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

811

812

813

== 3.3 Calibrate Sensor ==

814

815

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

== 3.4 Get Firmware Version Info ==

820

821

Feature: use downlink to get firmware version.

822

823

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

824

825

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

826

827

* Reply to the confirmation package: 26 01

828

* Reply to non-confirmed packet: 26 00

829

830

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

831

832

Configures info payload:

833

834

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

835

|=(((

836

**Size(bytes)**

837

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

838

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

Frequency

Band

)))|Sub-band|(((

Firmware

Version

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

847

[[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

878

879

880

**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 =

902

903

== 4.1 Battery Type ==

904

905

(((

906

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.

911

)))

912

913

[[image:1654593587246-335.png]]

914

915

916

Minimum Working Voltage for the LSPH01:

917

918

LSPH01: 2.45v ~~ 3.6v

== 4.2 Replace Battery ==

923

924

(((

925

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 ==

935

936

(((

937

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:

946

947

[[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/]]

948

949

950

**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.

957

958

[[image:1654593605679-189.png]]

959

960

961

The battery related documents as below:

962

963

* (((

964

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

965

)))

966

* (((

967

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

968

)))

969

* (((

970

[[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]]

971

)))

972

973

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

=== 4.3.1 Battery Note ===

978

979

(((

980

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 ===

986

987

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.

988

989

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 =

994

995

== 5.1 Access AT Commands ==

996

997

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.

998

999

[[image:1654593668970-604.png]]

**Connection:**

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

1004

1005

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

1006

1007

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

1008

1009

1010

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:

1011

1012

1013

[[image:1654593712276-618.png]]

1014

1015

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

= 6. FAQ =

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

1022

1023

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

1024

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

= 7. Trouble Shooting =

1029

1030

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

1031

1032

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**

1039

1040

1041

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

1042

1043

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

1044

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

1045

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

1046

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

1047

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

1048

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

1049

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

1050

* (% 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.

1071

* 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]].

1072

1073

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

Applications

Navigation