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.

75

)))

76

77

(((

78

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

102

* Ultra-low power consumption

103

* Monitor soil pH with temperature compensation.

104

* Monitor soil temperature

105

* Monitor Battery Level

106

* Support pH calibration by end user

107

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

108

* AT Commands to change parameters

109

* Uplink on periodically

110

* Downlink to change configure

111

* IP66 Waterproof Enclosure

112

* IP68 rate for the Sensor Probe

113

* 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 ==

150

151

[[image:1654592472094-134.png]]

= 2. Configure LSPH01 to connect to LoRaWAN network =

156

157

== 2.1 How it works ==

158

159

(((

160

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 >>||anchor="H5.UseATCommand"]]to set the keys in the LSPH01.

)))

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

169

170

(((

171

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:

192

)))

193

194

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

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

199

200

201

**Register the device**

202

203

204

[[image:1654592600093-601.png]]

**Add APP EUI and DEV EUI**

209

210

[[image:1654592619856-881.png]]

**Add APP EUI in the application**

215

216

[[image:1654592632656-512.png]]

**Add APP KEY**

[[image:1654592653453-934.png]]

223

224

225

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

226

227

228

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

229

230

[[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.

235

)))

236

237

[[image:1654592697690-910.png]]

== 2.3 Uplink Payload ==

242

243

(((

244

LSPH01 will uplink payload via LoRaWAN with below payload format:

)))

(((

Uplink payload includes in total 11 bytes.

)))

(((

Normal uplink payload:

253

)))

254

255

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

256

|=(% style="width: 62.5px;" %)(((

257

**Size (bytes)**

258

)))|=(% style="width: 62.5px;" %)**2**|=(% style="width: 62.5px;" %)**2**|=**2**|=**2**|=**1**|=**1**|=**1**

259

|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1BatteryInfo"]]|(% style="width:62.5px" %)(((

260

[[Temperature>>||anchor="H2.3.2DS18B20Temperaturesensor"]]

261

262

[[(Optional)>>||anchor="H2.3.2DS18B20Temperaturesensor"]]

263

)))|[[Soil pH>>||anchor="H2.3.3SoilpH"]]|[[Soil Temperature>>||anchor="H2.3.4SoilTemperature"]]|(((

264

[[Digital Interrupt (Optional)>>||anchor="H2.3.5InterruptPin"]]

265

)))|Reserve|(((

266

[[Message Type>>||anchor="H2.3.6MessageType"]]

267

)))

268

269

[[image:1654592721645-318.png]]

=== 2.3.1 Battery Info ===

274

275

276

Check the battery voltage for LSPH01.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

=== 2.3.2 DS18B20 Temperature sensor ===

285

286

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

292

293

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

315

316

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

=== 2.3.5 Interrupt Pin ===

321

322

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

**Example:**

0x00: Normal uplink packet.

328

329

0x01: Interrupt Uplink Packet.

=== 2.3.6 Message Type ===

334

335

(((

336

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

)))

(((

Valid Message Type:

)))

(% border="1" cellspacing="10" style="background-color:#ffffcc; width:499px" %)

345

|=(% style="width: 160px;" %)**Message Type Code**|=(% style="width: 163px;" %)**Description**|=(% style="width: 173px;" %)**Payload**

346

|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]

347

|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.4GetFirmwareVersionInfo"]]

348

|(% style="width:160px" %)0x03|(% style="width:163px" %)Reply Calibration Info|(% style="width:173px" %)[[Calibration Payload>>||anchor="H2.7Calibration"]]

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

354

355

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

356

357

358

[[image:1654592762713-715.png]]

359

360

(((

361

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 ==

371

372

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>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]

== 2.5 Show Data in DataCake IoT Server ==

377

378

(((

379

[[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:

)))

(((

)))

(((

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

)))

(((

(% 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:**

)))

[[image:1654592790040-760.png]]

396

397

398

[[image:1654592800389-571.png]]

399

400

401

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

402

403

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

404

405

[[image:1654592819047-535.png]]

[[image:1654592833877-762.png]]

410

411

412

[[image:1654592856403-259.png]]

(((

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

)))

(((

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/]]

)))

[[image:1654592878525-845.png]]

425

426

[[image:1654592892967-474.png]]

427

428

429

[[image:1654592905354-123.png]]

430

431

432

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

433

434

435

[[image:1654592917530-261.png]]

== 2.6 Installation and Maintain ==

440

441

=== 2.6.1 Before measurement ===

(((

(((

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 ===

(((

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

)))

(((

[[image:1654592946732-634.png]]

)))

(((

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

)))

(((

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

)))

(((

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

)))

(((

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

)))

(((

)))

(((

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

)))

(((

Dig a hole with diameter > 20CM.

)))

(((

Insert the probe inside, method like measure the surface.

)))

=== 2.6.3 Maintain Probe ===

497

498

1. (((

499

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

500

)))

501

1. (((

502

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.

503

)))

504

1. (((

505

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

506

)))

507

1. (((

508

User should keep reference electrode wet while not use.

509

)))

510

1. (((

511

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

512

)))

513

1. (((

514

The probe is IP68 can be put in water.

)))

== 2.7 Calibration ==

521

522

(((

523

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).

)))

(((

After stable, user can use below command to calibrate.

528

)))

529

530

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

531

532

533

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

534

535

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

536

|=(% style="width: 62.5px;" %)(((

**Size (bytes)**

|**Value**|(((

PH4

Calibrate value

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

PH9.18

Calibrate value

)))|Reserve|(((

[[Message Type>>||anchor="H2.3.6MessageType"]]

Always 0x03

)))

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

554

555

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

556

557

558

* Reply to the confirmation package: 14 01

559

* Reply to non-confirmed packet: 14 00

== 2.8 Frequency Plans ==

564

565

(((

566

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) ===

571

572

(((

573

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

)))

(((

868.1 - SF7BW125 to SF12BW125

)))

(((

868.3 - SF7BW125 to SF12BW125 and SF7BW250

)))

(((

868.5 - SF7BW125 to SF12BW125

)))

(((

867.1 - SF7BW125 to SF12BW125

)))

(((

867.3 - SF7BW125 to SF12BW125

)))

(((

867.5 - SF7BW125 to SF12BW125

)))

(((

867.7 - SF7BW125 to SF12BW125

)))

(((

867.9 - SF7BW125 to SF12BW125

)))

(((

868.8 - FSK

)))

(((

)))

(((

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

)))

(((

Uplink channels 1-9 (RX1)

)))

(((

869.525 - SF9BW125 (RX2 downlink only)

)))

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

631

632

(((

633

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:

642

)))

643

644

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

645

* 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)

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

650

651

(((

652

Used in China, Default use CHE=1

)))

(((

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

)))

(((

486.3 - SF7BW125 to SF12BW125

)))

(((

486.5 - SF7BW125 to SF12BW125

)))

(((

486.7 - SF7BW125 to SF12BW125

)))

(((

486.9 - SF7BW125 to SF12BW125

)))

(((

487.1 - SF7BW125 to SF12BW125

)))

(((

487.3 - SF7BW125 to SF12BW125

)))

(((

487.5 - SF7BW125 to SF12BW125

)))

(((

487.7 - SF7BW125 to SF12BW125

)))

(((

)))

(((

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

)))

(((

506.7 - SF7BW125 to SF12BW125

)))

(((

506.9 - SF7BW125 to SF12BW125

)))

(((

507.1 - SF7BW125 to SF12BW125

)))

(((

507.3 - SF7BW125 to SF12BW125

)))

(((

507.5 - SF7BW125 to SF12BW125

)))

(((

507.7 - SF7BW125 to SF12BW125

)))

(((

507.9 - SF7BW125 to SF12BW125

)))

(((

508.1 - SF7BW125 to SF12BW125

)))

(((

505.3 - SF12BW125 (RX2 downlink only)

)))

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

738

739

(((

740

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:

753

)))

754

755

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

756

* 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) ===

762

763

(((

764

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

)))

(((

923.2 - SF7BW125 to SF10BW125

)))

(((

923.4 - SF7BW125 to SF10BW125

)))

(((

)))

(((

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

)))

(((

(OTAA mode, channel added by JoinAccept message)

)))

(((

)))

(((

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

)))

(((

922.2 - SF7BW125 to SF10BW125

)))

(((

922.4 - SF7BW125 to SF10BW125

)))

(((

922.6 - SF7BW125 to SF10BW125

)))

(((

922.8 - SF7BW125 to SF10BW125

)))

(((

923.0 - SF7BW125 to SF10BW125

)))

(((

922.0 - SF7BW125 to SF10BW125

)))

(((

)))

(((

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

)))

(((

923.6 - SF7BW125 to SF10BW125

)))

(((

923.8 - SF7BW125 to SF10BW125

)))

(((

924.0 - SF7BW125 to SF10BW125

)))

(((

924.2 - SF7BW125 to SF10BW125

)))

(((

924.4 - SF7BW125 to SF10BW125

)))

(((

924.6 - SF7BW125 to SF10BW125

)))

(((

)))

(((

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

)))

(((

Uplink channels 1-8 (RX1)

)))

(((

923.2 - SF10BW125 (RX2)

)))

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

870

871

(((

872

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

)))

(((

922.1 - SF7BW125 to SF12BW125

)))

(((

922.3 - SF7BW125 to SF12BW125

)))

(((

922.5 - SF7BW125 to SF12BW125

)))

(((

)))

(((

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

)))

(((

922.1 - SF7BW125 to SF12BW125

)))

(((

922.3 - SF7BW125 to SF12BW125

)))

(((

922.5 - SF7BW125 to SF12BW125

)))

(((

922.7 - SF7BW125 to SF12BW125

)))

(((

922.9 - SF7BW125 to SF12BW125

)))

(((

923.1 - SF7BW125 to SF12BW125

)))

(((

923.3 - SF7BW125 to SF12BW125

)))

(((

)))

(((

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

)))

(((

Uplink channels 1-7(RX1)

)))

(((

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

)))

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

942

943

(((

944

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

)))

(((

865.0625 - SF7BW125 to SF12BW125

)))

(((

865.4025 - SF7BW125 to SF12BW125

)))

(((

865.9850 - SF7BW125 to SF12BW125

)))

(((

)))

(((

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

)))

(((

Uplink channels 1-3 (RX1)

)))

(((

866.550 - SF10BW125 (RX2)

)))

== 2.9 LED Indicator ==

978

979

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

980

981

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

982

* Blink once when device transmit a packet.

== 2.10 Firmware Change Log ==

988

989

990

**Firmware download link:**

991

992

[[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/]]

993

994

995

**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 =

1000

1001

(((

1002

Use can configure LSPH01 via AT Command or LoRaWAN Downlink.

)))

* (((

AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].

1007

)))

1008

* (((

1009

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

)))

(((

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

)))

* (((

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

)))

(((

These commands are to configure:

)))

* (((

General system settings like: uplink interval.

1026

)))

1027

* (((

1028

LoRaWAN protocol & radio related command.

)))

(((

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/]]

)))

(((

)))

* (((

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

)))

(((

These commands only valid for LSPH01, as below:

)))

== 3.1 Set Transmit Interval Time ==

1050

1051

Feature: Change LoRaWAN End Node Transmit Interval.

1052

1053

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

1054

1055

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

(((

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

)))

(((

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

)))

(((

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

)))

* (((

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

1073

)))

1074

* (((

1075

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

)))

== 3.2 Set Interrupt Mode ==

1082

1083

Feature, Set Interrupt mode for GPIO_EXIT.

1084

1085

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

1086

1087

[[image:image-20220610105907-1.png]]

(((

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

)))

(((

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

)))

(((

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

)))

* (((

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

1104

)))

1105

* (((

1106

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

)))

(((

)))

== 3.3 Calibrate Sensor ==

1116

1117

Detail See [[Calibration Guide>>||anchor="H2.7Calibration"]] for the user of 0x13 and 0x14 downlink commands

== 3.4 Get Firmware Version Info ==

1122

1123

Feature: use downlink to get firmware version.

1124

1125

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

1126

1127

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

1128

1129

* Reply to the confirmation package: 26 01

1130

* Reply to non-confirmed packet: 26 00

1131

1132

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

1133

1134

Configures info payload:

1135

1136

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

1137

|=(((

1138

**Size(bytes)**

1139

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

1140

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

Frequency

Band

)))|Sub-band|(((

Firmware

Version

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

1149

[[Message Type>>||anchor="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

1180

1181

1182

**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 =

1204

1205

== 4.1 Battery Type ==

1206

1207

(((

1208

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.

1213

)))

1214

1215

[[image:1654593587246-335.png]]

1216

1217

1218

Minimum Working Voltage for the LSPH01:

1219

1220

LSPH01: 2.45v ~~ 3.6v

== 4.2 Replace Battery ==

1225

1226

(((

1227

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 ==

1237

1238

(((

1239

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:

1248

1249

[[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/]]

1250

1251

1252

**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.

1259

1260

[[image:1654593605679-189.png]]

1261

1262

1263

The battery related documents as below:

1264

1265

* (((

1266

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

1267

)))

1268

* (((

1269

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

1270

)))

1271

* (((

1272

[[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]]

1273

)))

1274

1275

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

=== 4.3.1 Battery Note ===

1280

1281

(((

1282

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 ===

1288

1289

(((

1290

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.

)))

(((

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 =

1300

1301

== 5.1 Access AT Commands ==

1302

1303

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.

1304

1305

[[image:1654593668970-604.png]]

**Connection:**

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

1310

1311

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

1312

1313

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

(((

In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSPH01. LSPH01 will output system info once power on as below:

)))

[[image:1654593712276-618.png]]

1322

1323

Valid AT Command please check [[Configure Device>>||anchor="H3.ConfigureLSPH01viaATCommandorLoRaWANDownlink"]].

= 6. FAQ =

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

1329

1330

You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]].

1331

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

1332

1333

1334

= 7. Trouble Shooting =

1335

1336

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

1337

1338

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**

1345

1346

1347

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

1348

1349

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

1350

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

1351

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

1352

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

1353

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

1354

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

1355

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

1356

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

= 9. Packing Info =

**Package Includes**:

1364

1365

* LSPH01 LoRaWAN Soil Ph Sensor x 1

1366

1367

**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.

1379

* 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]].

1380

1381

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

Applications

Navigation