Version 83.1 by Dilisi S on 2025/01/31 03:47
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13 **Table of Contents:**
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15 {{toc/}}
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24
25 = 1. Introduction =
26
27 == 1.1 What is the LWL02 LoRaWAN Water Leak Sensor ==
28
29
30 The Dragino LWL02 is a (% style="color:#4f81bd" %)**LoRaWAN Water Leak Sensor**(%%) equipped with two external metal probes. When water is detected between the two metal probes, the LWL02 identifies a water leak and sends an uplink to the registered LoRaWAN network server.
31
32 The LWL02 is powered by (% style="color:#4f81bd" %)**2 x AAA batteries**(%%) and is designed for long-term use. These two batteries can support approximately 16,000 to 70,000 uplink packets, resulting in a battery life of 2 to 10 years. Once the batteries are depleted, users can easily open the enclosure and replace them with standard AAA batteries.
33
34 The LWL02 sends data periodically every day and also for each water leak event. It records the number of water leak occurrences and calculates the duration of the most recent leak. Users can disable uplinks for each individual water leak event if desired. In this case, the device will count each event and send the data periodically.
35
36 Each LWL02 comes preloaded with a unique set of key/EUIs for LoRaWAN registration. By registering these keys to the LoRaWAN network server, the device will automatically connect upon powering on.
37
38 (((
39
40 )))
41
42 [[image:image-20220927113420-3.png]]
43
44
45 == 1.2 Features ==
46
47
48 * **LoRaWAN Class A v1.0.3**
49 * **Frequency Bands:** CN470, EU433, KR920, US915, EU868, AS923, AU915, IN865, RU864
50 * **SX1262 LoRa Core**
51 * **Water Leak Detection**
52 * **2 x AAA LR03 Batteries**
53 * **AT Commands** to change parameters
54 * **Periodic Uplink** and uplink triggered by open/close actions
55 * **Remote Configuration** of parameters via LoRa Downlink
56 * **Firmware Upgradable** via programming port
57
58 == 1.3 Storage & Operation Temperature ==
59
60
61 -10 ~~ 50 °C  or -40 ~~ 60 °C (depending on the battery type; see [[FAQ>>||anchor="H7.6Whyiseedifferentworkingtemperatureforthedevice3F"]])
62
63
64 == 1.4 Applications ==
65
66
67 * Smart Buildings & Home Automation
68 * Logistics and Supply Chain Management
69 * Smart Metering
70 * Smart Agriculture
71 * Smart Cities
72 * Smart Factory
73
74 == 1.5 Dimensions ==
75
76
77 [[image:image-20220608143952-2.png]]
78
79
80 [[image:1654670405145-346.png]]
81
82
83 == 1.6 Firmware Change log ==
84
85
86 (((
87 The LWL02 uses the same firmware as the LDS01:  [[https:~~/~~/www.dropbox.com/sh/6ls5i0zsvujvbc8/AABe3V5aQXdy7zSxEdEA3DHOa?dl=0>>https://www.dropbox.com/sh/6ls5i0zsvujvbc8/AABe3V5aQXdy7zSxEdEA3DHOa?dl=0]]
88 )))
89
90
91 = 2. Power ON LWL02 =
92
93
94 When you receive the LWL02, open the enclosure and insert 2 AAA batteries to power it on. The [[LED>>||anchor="H4.7LEDs"]] will blink when the device is powered.
95
96
97 = 3. How to install LWL02 =
98
99
100 **Fixing with screws:**
101
102 * Detach the bottom lid of the enclosure. You will notice two holes on the bottom lid for inserting screws. First, attach the bottom lid to the surface using screws. Then snap the top part of the enclosure onto the bottom. You will hear a clicking sound once they are securely fitted together.
103
104 [[image:image-20231222114059-1.jpeg||height="412" width="624"]]
105
106
107 **Fixing with double-sided adhesive pads:**
108
109 * A double-sided adhesive pad is included with the LWL02. First remove the protective backing of one side only. Then affix it on the bottom of the sensor enclosure. Once the tape is in place, remove the remaining protective backing and secure the enclosure to the surface.
110
111 [[image:image-20231222114211-2.jpeg||height="409" width="613"]]
112
113
114 (((
115 When installing the LWL02 on a wall, please follow the instructions as shown in the image below to ensure the water leak probe is submerged in water for detection purposes. The LWL02 main body is not waterproof, so please avoid allowing water to enter the main body.
116
117
118 )))
119
120 [[image:image-20220608144447-4.png]]
121
122
123 = 4. Operation Mode =
124
125 == 4.1 How It works? ==
126
127
128 (((
129 The LDS02 is configured as a LoRaWAN Class A device by default. It contains a DevEUI, AppEUI, and AppKey, which allow it to join a LoRaWAN network using OTAA (Over-The-Air Activation). To connect the LWL02 to a LoRaWAN network, you need to configure these keys and identifiers with the LoRaWAN network server first, and then [[power on>>||anchor="H2.PowerONLWL02"]] the LWL02. The device will automatically join the network using OTAA. This device information can be found in your package, printed on a sticker.
130
131
132 [[image:image-20230426084834-1.png||height="239" width="515"]]
133
134
135 )))
136
137 (((
138 If you cannot set the device registration information, such as the DevEUI, AppEUI, and AppKey, in the network server, you must use the information generated by the network server, which differs from the information already stored on the device. In this case, you can use [[AT Command>>||anchor="H6.UseATCommand"]] to write the new information to the device.
139 )))
140
141
142 == 4.2 Example to joining a LoRaWAN network ==
143
144
145
146 The following figure shows how the LWL02 connects to [[The Things Stack>>url:https://eu1.cloud.thethings.network/]]. The LWL02 sends messages (uplinks) to The Things Stack via a LoRaWAN gateway (e.g., Dragino LPS8N) and can also receive messages (downlinks) from The Things Stack. The Things Stack can be integrated with ThingsEye, allowing it to forward uplinks to ThingsEye. ThingsEye is an IoT platform used for visualizing and analyzing sensor data. You can also send downlinks from ThingsEye (via The Things Stack) to the LWL02.
147
148 [[image:image-20220927113401-2.png]]
149
150
151 (((
152 The LWL02 has a water leak detection probe, as shown above. When water is present between the two probes, they will short-circuit and generate a water leak event, sending the status to the LoRaWAN server. The LWL02 uplinks the following types of messages to the server:
153
154 * A keep-alive message, sent once per day.
155 * An emergency event message when a water leak is detected ([[this alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]]).
156 * A periodic update every 10 minutes while in a water leak state.
157 * A message when switching from a water leak state to no water leak ([[this alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]]).
158
159 === 4.2.1 Setting up ===
160
161 * Sign up for a free account with [[The Things Stack Sandbox>>url:https://eu1.cloud.thethings.network]] if you do not have one yet.
162 * Log in to your **The Things Stack** account.
163 * Create an **application** with The Things Stack if you do not have one yet.
164 ** On the left navigation, click **Applications**.
165 ** Then click **+ Add Application** button.
166
167 [[image:lwl02-4.png]]
168
169 * On the **Create Application **page, configure the following:
170 ** **Application ID**: Provide a unique identification for your application within The Things Stack.
171 ** **Application name**: (optional) Provide a descriptive name.
172 ** **Description**: (optional) Provide a description.
173 * Click on **Create application **button.
174 )))
175
176
177 [[image:lwl02-5.png]]
178
179
180 * Go to the newly created application and click on the **End devices** in the left menu.
181 * On the End devices page, click on **+ Register end device**.
182
183 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/lds02-step-5.png?rev=1.1||alt="lds02-step-5.png"]]
184
185
186 * Two registration options are available:
187 ** Using the LoRaWAN Device Repositoty
188 ** Manual registration
189
190 === 4.2.2 Using the LoRaWAN Device Repository ===
191
192 * On the **Register end device** page:
193 ** Select the option **Select the end device in the LoRaWAN Device Repository **under **Input method**.
194 ** Select the **End device brand**, **Model**, **Hardware version**, **Firmware version**, and **Profile (Region)** from the respective dropdown lists.
195 *** **End device brand**: Dragino Technology Co., Limited
196 *** **Model**: LWL02 - Water Leak Sensor
197 *** **Hardware ver**: Unknown
198 *** **Firmware ver**: 1.6
199 *** **Profile (Region)**: Select the region that matches your device.
200 ** Select the **Frequency plan** that matches your device from the **Frequency plan** dropdown list.
201 ** Enter the **AppEUI** in the **JoinEUI** field and click the **Confirm** button. If The Things Stack accepts the JoinEUI you provided, it will display the message 'This end device can be registered on the network.
202
203 [[image:lwl02-1.png]]
204
205
206
207
208 * In the **DevEUI** field, enter the **DevEUI**.
209 * In the **AppKey** field, enter the **AppKey.**
210 * In the **End device ID** field, enter a unique name for your LDS02 within this application.
211 * Under **After registration**, select the **View registered end device** option.
212 * Click **Register end device** button.
213
214 [[image:lwl02-2.png]]
215
216
217
218 * You will be navigated to the Device overview page.
219
220 [[image:lwl02-3.png]]
221
222
223 * Click on the Live Data tab and then **Power on** the LWL02. It will first join The Things Stack network server. You can confirm this by looking for the Join-request and Join-accept messages. After successfully joining the network, the LWL02 will start sending uplink messages to The Things Stack, and you can see them in the **Live Data** panel.
224
225 [[image:1654681465260-713.png]]
226
227
228 == 4.3 Uplink Payload ==
229
230
231 The uplink payload is a total of 10 bytes.
232
233 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:732px" %)
234 |(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:60px" %)**2**|(% style="background-color:#4f81bd; color:white; width:60px" %)**1**|(% style="background-color:#4f81bd; color:white; width:100px" %)**3**|(% style="background-color:#4f81bd; color:white; width:110px" %)**3**|(% style="background-color:#4f81bd; color:white; width:153px" %)**1**
235 |value|Status&BAT|(((
236 MOD
237 Always:0x02
238 )))|(% style="width:126px" %)Total_water_leak_events|(% style="width:140px" %)(((
239 Last  water leak duration (unit:min)
240 )))|(% style="width:153px" %)(((
241 Alarm status (Only used in
242 LWL02) Always:0x00
243 )))
244
245 **Example:**
246
247 [[image:1654672186477-234.png]]
248
249
250 (((
251 The **payload decoder** for The Things Stack can be downloaded from:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder/tree/main/LWL02]]
252 )))
253
254
255 == 4.4 Downlink Payload ==
256
257
258 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:505px" %)
259 |=(% style="width: 182px;background-color:#4F81BD;color:white" %)**Downlink Control Type**|=(% style="width: 96px;background-color:#4F81BD;color:white" %)**Type Code**|=(% style="width: 227px;background-color:#4F81BD;color:white" %)**Downlink payload size(bytes)**
260 |(% style="width:180px" %)TDC (Transmit Time Interval—Keep Alive Interval)|(% style="width:80px" %)0x01|(% style="width:150px" %)4
261 |(% style="width:180px" %)RESET|(% style="width:80px" %)0x04|(% style="width:224px" %)2
262 |(% style="width:180px" %)[[Set confirmed mode>>||anchor="HTypeCode0x05"]]|(% style="width:80px" %)0x05|(% style="width:150px" %)2
263 |(% style="width:180px" %)[[Clear Counting>>||anchor="HTypeCode0xA6"]]|(% style="width:80px" %)0xA6|(% style="width:150px" %)2
264 |(% style="width:180px" %)[[Enable/Disable Alarm>>||anchor="HTypeCode0xA7"]]|(% style="width:80px" %)0xA7|(% style="width:150px" %)2
265 |(% style="width:180px" %)[[Control ADR/DR>>||anchor="HTypeCode0xA8"]]|(% style="width:80px" %)0xA8|(% style="width:150px" %)3
266 |(% style="width:180px" %)[[Set Alarm Timeout>>||anchor="HTypeCode0xA9"]]|(% style="width:80px" %)0xA9|(% style="width:150px" %)4
267
268 The following image illustrates how to send a downlink payload from The Things Stack.
269
270 [[image:1654673412319-976.png]]
271
272
273 === (% style="color:#037691" %)**Type Code 0x01**(%%) ===
274
275 For example, if the payload is **0100003C**, the LWL02's Keep Alive interval is set to **0x00003C (60 seconds)**.
276
277
278 === (% style="color:#037691" %)**Type Code 0x04**(%%) ===
279
280 For example, if the payload is **0x04FF**, it **resets** the LWL02.
281
282
283 === (% style="color:#037691" %)**Type Code 0x05**(%%) ===
284
285 * The payload **0x05 00** sets the uplink to LoRaWAN **unconfirmed** mode.
286 * The payload **0x05 01** sets the uplink to LoRaWAN **confirmed** mode
287
288 === (% style="color:#037691" %)**Type Code 0xA6**(%%) ===
289
290 The payload **0xA601** is used to "**clear the counting**." For the LWL02, it resets both the count numbers and the time.
291
292
293 === (% style="color:#037691" %)**Type Code 0xA7**(%%) ===
294
295 * The payload **0xA7 01** is equivalent to **AT+DISALARM=1**.
296 * The payload **0xA7 00** is Equivalent to **AT+DISALARM=0**.
297
298 === (% style="color:#037691" %)**Type Code 0xA8**(%%) ===
299
300 **Downlink Payload Format**: 0xA8 AA BB
301
302 * **0xA8**: Type code
303 * **AA**:
304 ** **1**: Enable ADR
305 ** **0**: Disable ADR (same as the **AT+CADR** command)
306 * **BB**: Set DR (same as **AT+CDATARATE**; only valid after ADR = 0)
307
308 **Example**: 0xA8 00 02: Set ADR = 0 and DR = 2
309
310
311 === (% style="color:#037691" %)**Type Code 0xA9**(%%) ===
312
313 For more information, see [[Alarm Base Timeout>>||anchor="H4.6AlarmBaseonTimeout"]].
314
315
316 == 4.5 Integrate with IoT Platforms ==
317
318 The Things Stack can be integrated with many IoT platforms, including ThingsEye and Datacake, for visualizing and analyzing data coming from the LWL02. Most of these IoT platforms also support sending downlinks to the LWL02.
319
320 === 4.5.1 Integrate with ThingsEye ===
321
322 The Things Stack application supports integration with ThingsEye.io. Once integrated, ThingsEye.io acts as an MQTT client for The Things Stack MQTT broker, allowing it to subscribe to upstream traffic and publish downlink traffic.
323
324 ==== 4.5.1.1 Configuring The Things Stack ====
325
326 We use The Things Stack Sandbox in this example:
327
328 * In **The Things Stack Sandbox**, go to the **Application **for the LWL02 you added.
329 * Select **MQTT** under **Integrations** in the left menu.
330 * In the **Connection information **section, under **Connection credentials**, The Things Stack displays an auto-generated **username**. You can use it or provide a new one.
331 * Click the **Generate new API key** button to generate a password. You can view it by clicking on the **visibility toggle/eye** icon. The API key works as the password.
332
333 {{info}}
334 The username and  password (API key) you created here are required in the next section.
335 {{/info}}
336
337 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/tts-mqtt-integration.png?rev=1.1||alt="tts-mqtt-integration.png"]]
338
339
340 ==== 4.5.1.2 Configuring ThingsEye.io ====
341
342 The ThingsEye.io IoT platform is not open for self-registration at the moment. If you are interested in testing the platform, please send your project information to [[admin@thingseye.io>>mailto:admin@thingseye.io]], and we will create an account for you.
343
344 * Login to your [[ThingsEye.io >>url:https://thingseye.io]]account.
345 * Under the **Integrations center**, click **Integrations**.
346 * Click the **Add integration** button (the button with the **+** symbol)
347
348 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/thingseye-io-step-1.png?rev=1.2||alt="thingseye-io-step-1.png"]]
349
350
351 On the **Add integration** window, configure the following:
352
353 **Basic settings:**
354
355 * Select **The Things Stack Community** from the **Integration type** list.
356 * Enter a suitable name for your integration in the **Name **text** **box or keep the default name.
357 * Ensure the following options are turned on.
358 ** Enable integration
359 ** Debug mode
360 ** Allow creating devices or assets
361 * Click the **Next** button. you will be navigated to the **Uplink data converter** tab.
362
363 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/thingseye-io-step-2.png?rev=1.1||alt="thingseye-io-step-2.png"]]
364
365
366 **Uplink data converter:**
367
368 * Click the **Create new** button if it is not selected by default.
369 * Enter a suitable name for the uplink data converter in the **Name **text** **box or keep the default name.
370 * Click the **JavaScript** button.
371 * Paste the uplink decoder function into the text area (first, delete the default code). The demo uplink decoder function can be found [[here>>url:https://raw.githubusercontent.com/ThingsEye-io/te-platform/refs/heads/main/Data%20Converters/The_Things_Network_MQTT_Uplink_Converter.js]].
372 * Click the **Next** button. You will be navigated to the **Downlink data converter **tab.
373
374 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/thingseye-io-step-3.png?rev=1.1||alt="thingseye-io-step-3.png"]]
375
376
377 **Downlink data converter (this is an optional step):**
378
379 * Click the **Create new** button if it is not selected by default.
380 * Enter a suitable name for the downlink data converter in the **Name **text** **box or keep the default name.
381 * Click the **JavaScript** button.
382 * Paste the downlink decoder function into the text area (first, delete the default code). The demo downlink decoder function can be found [[here>>url:https://raw.githubusercontent.com/ThingsEye-io/te-platform/refs/heads/main/Data%20Converters/The_Things_Network_MQTT_Downlink_Converter.js]].
383 * Click the **Next** button. You will be navigated to the **Connection** tab.
384
385
386 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/thingseye-io-step-4.png?rev=1.1||alt="thingseye-io-step-4.png"]]
387
388
389 **Connection:**
390
391 * Choose **Region** from the **Host type**.
392 * Enter the **cluster** of your **The Things Stack** in the **Region** textbox. You can find the cluster in the url (e.g., https:~/~/**eu1**.cloud.thethings.network/...).
393 * Enter the **Username** and **Password** of the MQTT integration in the **Credentials** section. The **username **and **password **can be found on the MQTT integration page of your The Things Stack account (see **4.5.1.1 Configuring The Things Stack**).
394 * Click the **Check connection** button to test the connection. If the connection is successful, you will see the message saying **Connected**.
395
396 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/message-1.png?rev=1.1||alt="message-1.png"]]
397
398
399
400 * Click the **Add** button.
401
402 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/thingseye-io-step-5.png?rev=1.1||alt="thingseye-io-step-5.png"]]
403
404
405 Your integration has been added to the** Integrations** list and will be displayed on the **Integrations** page. Check whether the status is shown as **Active**. If not, review your configuration settings and correct any errors.
406
407
408 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/thingseye.io_integrationsCenter_integrations.png?rev=1.2||alt="thingseye.io_integrationsCenter_integrations.png"]]
409
410
411 ==== 4.5.1.3 Viewing integration details ====
412
413 Click on your integration from the list. The **Integration details** window will appear with the **Details **tab selected. The **Details **tab shows all the settings you have provided for this integration.
414
415
416 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/integration-details.png?rev=1.1||alt="integration-details.png"]]
417
418
419 If you want to edit the settings you have provided, click on the **Toggle edit mode** button. Once you have done click on the **Apply changes **button.
420
421 {{info}}
422 See also [[ThingsEye documentation>>url:https://wiki.thingseye.io/xwiki/bin/view/Main/]].
423 {{/info}}
424
425
426 ==== 4.5.1.4 Viewing events ====
427
428 The **Events **tab displays all the uplink messages from the LWL02.
429
430 * Select **Debug **from the **Event type** dropdown.
431 * Select the** time frame** from the **time window**.
432
433
434 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/thingseye-events.png?rev=1.1||alt="thingseye-events.png"]]
435
436
437 * To view the **JSON payload** of a message, click on the **three dots (...)** in the **Message** column of the desired message.
438
439 [image coming soon]
440
441
442 ==== 4.5.1.5 Deleting an integration ====
443
444 If you want to delete an integration, click the **Delete integration** button on the Integrations page.
445
446
447 ==== 4.5.1.6 Viewing sensor data on a dashboard ====
448
449 You can create a dashboard with ThingsEye to visualize the sensor data coming from the LWL02. The following image shows a dashboard created for the LWL02. See **Creating a dashboard** in ThingsEye documentation for more information.
450
451
452
453 [[image:Screenshot 2025-01-28 at 20.40.24.png]]
454
455
456 == 4.5.2 Integrate with Datacake ==
457
458
459 Datacake is a multi-purpose, low-code IoT platform that allows you to integrate sensor data for visualization and analysis. With The Things Stack, you can easily create an integration with Datacake to forward your sensor data to the Datacake IoT platform.
460
461
462 === 4.5.2.1 Prerequisites ===
463
464 * The LDS02 device is joined to The Things Stack.
465 * Uplinks from the LWL02 device are being received by The Things Stack.
466 * A Datacake account (a free account is sufficient for this example).
467
468
469 === 4.5.2.2 Procedure ===
470
471 * In the Datacake workspace, on the left navigation, click **Account Settings**.
472 * Then click **API Token**.
473 * In the **API Token** tab, click the **Copy** button to copy the API token. You will need this API token when creating a webhook with The Things Stack.
474
475
476
477 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/datacake-1.png?rev=1.1||alt="datacake-1.png"]]
478
479
480
481 To configure the Application to forward data to Datacake you will need to add integration. To add the Datacake integration, perform the following steps:
482
483 * In The Things Stack console, on the left navigation,
484 ** First select your **application** (**Applications -> <your application>**)
485 ** Then select **Integrations -> Webhooks**
486 * On the **Webhooks** page, click + **Add Webhook** button.
487
488
489
490 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/tts-webhook-1.png?rev=1.1||alt="tts-webhook-1.png"]]
491
492
493 * On the **Choose webhook template** page, select **Datacake**.
494
495
496
497 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/tts-webhook-2.png?rev=1.1||alt="tts-webhook-2.png"]]
498
499
500 * On the Setup webhook for Datacake page,
501 ** **Webhook ID**: provide an unique identifier for this webhook
502 ** **Token**: Paste the **Datacake API Token** when you copied from the Datacake **Account Settings**.
503 * Click on the **Create Datacake webhook** button.
504
505
506
507 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/tts-webhook-3.png?rev=1.1||alt="tts-webhook-3.png"]]
508
509
510 Now the Webhook is created and displayed on the **Webhooks** page.
511
512
513 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/tts-webhook-4.png?rev=1.1||alt="tts-webhook-4.png"]]
514
515
516 * In the Datacake workspace, on the left navigation, click **Devices**.
517 * On the Devices page, click **+Add Device**.
518
519
520
521 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/datacake-2.png?rev=1.1||alt="datacake-2.png"]]
522
523
524 * On the **Add Device** window, click **LoRaWAN** option.
525 * Click on the **Next** button.
526
527
528
529 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/datacake-3.png?rev=1.1||alt="datacake-3.png"]]
530
531
532 * On the **Add LoRaWAN Device** window, **STEP 1**, click on **New Product from template** option.
533 * Under **Device Template**, search **lwl02**. Then click on **Dragino LWL02 Water leakage** option.
534 * Click on the **Next** button.
535
536
537
538 [[image:lwl02-dk-1.png]]
539
540
541 * On the **Add LoRaWAN Device** window, **STEP 2**, under **Network Server**, click on **The Things Stack V3** option.
542 * Click on the **Next** button.
543
544
545
546 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/datacake-5.png?rev=1.1||alt="datacake-5.png"]]
547
548
549 * On the **Add LoRaWAN Device** window, **STEP 3**, under **Add Devices**, click **Manual** tab.
550 * In the **DEVEUI** textbox, enter your LWL02's 8 bytes **DevEUI**.
551 * In the **NAME** textbox, enter a suitable name to identify your LWL02.
552 * Click on the **Next** button.
553
554
555
556 [[image:lwl02-dk-2.png]]
557
558
559 * On the **Add LoRaWAN Device** window, **STEP 4**, select **Individual device plans** tab.
560 * Click **Free** option.
561 * Click on the **Add 1 Device** button.
562
563
564 [[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/WebHome/datacake-7.png?rev=1.1||alt="datacake-7.png"]]
565
566
567
568
569 * The device is now added to the Datacake workspace and is ready to receive uplinks from the LWL02 via The Things Stack.
570 * In the **DEVICE** column, click **lwl02**.
571
572
573
574
575 [[image:lwl02-dk-3.png]]
576
577
578 You can see the **pre-built dashboard** from our template, displaying the LWL02's sensor data on various **widgets**.
579
580
581 [[image:lwl02-dk-4.png]]
582
583
584
585
586 == 4.6 Alarm Based on Timeout ==
587
588
589 (((
590 The LWL02 can monitor the timeout for a status change. This feature can be used to monitor events, such as the duration of water leakage, and more.
591
592 (% style="color:red" %)**(This command is specifically applicable to LDS02. For the LWL02, this command can only enable the alarm, but the alarm time is fixed at 10 minutes）**
593 )))
594
595 (((
596 You can configure this feature using the following:
597 )))
598
599 (((
600
601 )))
602
603 (((
604 **AT Command Configuration:**
605
606 * (% style="color:red" %)**AT+TTRIG=1,30**(%%) ~-~-> When the status changes from "**close**" to "**open**," the LWL02 remains in the "**open**" status for more than 30 seconds. Then it will send an uplink packet. The alarm bit (the lowest bit of the 10th byte of the payload) in this uplink packet is set to 1.
607 * (% style="color:red" %)**AT+TTRIG=0,0**(%%) ~-~-> Default value, disables the timeout alarm.
608
609
610 )))
611
612 (((
613 **Downlink Command Configuration:**
614
615 **Command**: 0xA9 AA BB CC
616
617 * **0xA9**: Type Code
618 * **AA**: Status to be monitored
619 * **BB CC**: Timeout
620
621 If you send **0xA9 01 00 1E**, it is equivalent to **AT+TTRIG=1,30**.
622
623 Or, if you send** 0xA9 00 00 00**, it is equivalent to **AT+TTRIG=0,0** (disables the timeout alarm).
624 )))
625
626 (((
627
628 )))
629
630 == 4.7 LED Indicators ==
631
632
633 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:463px" %)
634 |=(% style="width: 186px;background-color:#4F81BD;color:white" %)**Action**|=(% style="width: 277px;background-color:#4F81BD;color:white" %)**LED behavior**
635 |(% style="width:184px" %)Power On|(% style="width:275px" %)(% style="color:green" %)**GREEN LED on for 1s, **(% style="color:red" %)**RED LED on for 1s,**(%%)** (% style="color:blue" %)BLUE LED on for 1s(%%)**
636 |(% style="width:184px" %)Joined successfully|(% style="width:275px" %)(% style="color:green" %)**GREEN LED **(%%)on for 5s
637 |(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
638 |(% style="width:184px" %)Receive a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
639
640 = 5. Battery =
641
642
643 The LWL02 is equipped with 2 AAA LR03 batteries.
644
645
646 == 5.1 Replacing Batteries ==
647
648
649 (((
650 The LDS02 is equipped with 2 x AAA LR03 batteries. If the batteries are running low (showing 2.1V on the platform), the user can buy generic AAA batteries and replace them.
651
652 **Note:**
653
654 1. The LDS02 doesn’t have any screws; you can use a nail to open it from the middle.
655 1. Make sure the direction is correct when installing the AAA batteries.
656
657 **Important Note: **Ensure you use new AAA LR03 batteries, and that the battery surfaces are not damaged.
658
659
660 Example of AAA LR03 battery:
661 )))
662
663 [[image:1654675278044-307.png]]
664
665
666 == 5.2 Power Consumption Analysis ==
667
668
669 (((
670
671
672 Dragino battery-powered products all run in Low Power mode. You can refer to the guidelines from this [[**link**>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]] to estimate battery life.
673 )))
674
675 = 6. Use AT Commands =
676
677 == 6.1 Access AT Commands ==
678
679
680 The LWL02 supports an AT command set. You can use a USB to TTL adapter to configure the LWL02 via AT commands, as shown below.
681
682 [[image:image-20221226104917-1.png||height="557" width="850"]]
683
684
685 (((
686 On the PC, the user needs to set the **serial tool** (such as [[PuTTY>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]] or SecureCRT) baud rate to **115200** to access the serial console of the LWL02. Below is the output for reference:
687 )))
688
689 (((
690 The AT command access password is (% style="color:red" %)**123456**.
691 )))
692
693 [[image:1654675618022-630.png]]
694
695
696 (((
697 Each AT command needs to have an **ENTER** key pressed at the end before sending.
698
699 When entering the first command, the **RED LED** will turn on, and the user can now input AT commands. After entering all the required AT commands, input **AT+CLPM=1** to set the device to Low Power mode, and the **RED LED** will turn off.
700
701 More details can be found in the [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/]].
702 )))
703
704 (((
705 [[url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/]]
706 )))
707
708
709 = 7. FAQ =
710
711 == 7.1 How to upgrade the image? ==
712
713
714 You can upgrade the LWL02 for bug fixes, new features, or to change the working region. The upgrade instructions are here: [[LDS02/LWL02 Update method>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS02%20-%20LoRaWAN%20Door%20Sensor%20User%20Manual/#H7.1Howtoupgradetheimage3F]].
715
716
717 == 7.2 How to change the LoRa Frequency Bands/Region? ==
718
719
720 If you have the US915 frequency and want to change it to the AS923 frequency, you can follow the instructions for upgrading the image in [[how to upgrade image>>||anchor="H7.1Howtoupgradetheimage3F"]] section. When downloading the image, select the required file.
721
722
723
724 == 7.3 Can I disable uplinks for each event to save battery life? ==
725
726
727 Yes, you can use one of the method below:
728
729
730 **Via AT Command**:
731
732 **AT+DISALARM=1** : The end node will only send packets during the TDC time.
733
734 **AT+DISALARM=0** : The end node will send packets either during the TDC time or when there is a status change in the door sensor.
735
736
737 **Via LoRaWAN downlink Command**:
738
739 **0xA701** : Equivalent to AT+DISALARM=1
740
741 **0xA700** : Equivalent to AT+DISALARM=0
742
743
744
745 == 7.4 How can I change the Subband for LWL02? ==
746
747
748 **Before v1.6 firmware:**
749 LDS02 operates in Subband 2 by default in the AU915/US915 band. If the LoRaWAN server operates on another subband, LDS02 may have trouble joining the server. In this case, the user can use the AT command to change the subband. See the AT Command chapter for hardware connection details. Below are the steps to change the subband:
750
751 1. Press the reset button.
752 1. Send the password **123456**.
753 1. Send the command: **AT+CFREQBANDMASK=0006** (use 0001 for Subband 1, 0002 for Subband 2, etc.).
754 1. Press the reset button to restart and switch to the new subband.
755
756 Example output:
757
758 (% class="mark small" %)[3369]DRAGINO LWL01 Device
759 [3370]Frequency Band: US915 v1.5
760 [3373]OTAA
761 [3374]DevEui= 7896785455246354
762 [3377]class type A
763 [3379]freq mode intra(%%)
764 (% class="mark mark small small" %)[3381]**scan chn mask 0x0002   ~-~-> use subband 2**
765
766 (% class="mark small" %)LM502:~~# [10793]txDone
767 123456       ~-~-> ENTER PASSWORD
768 Correct Password
769
770 (% class="mark small" %)[105115]rxTimeOut
771 **AT+CFREQBANDMASK=0001   ~-~-> Change to Subband1**
772 OK
773
774 (% class="mark small" %)[3371]DRAGINO LWL01 Device
775 [3373]Frequency Band: US915 v1.5
776 [3376]OTAA
777 [3377]DevEui= 7896785455246354
778 [3380]class type A
779 [3382]freq mode intra
780 [3384]**scan chn mask 0x0001  ~-~-> reboot and works on Subband1 now**
781
782
783 **Since firmware v1.6:**
784
785 LDS02 works with the channel mask 0x0000, which covers all subbands. Therefore, there is no need to use AT commands to change the subband, and it will work for every subband.
786
787
788
789 == 7.5 My sensor worked for Helium AU915 before, but now it doesn't work. Why? ==
790
791
792
793 This is a sub-band issue. See chapter 7.4. Helium changed the sub-band for AU915 from subband 2 to subband 6, which caused the sensor to stop working.
794
795
796 == 7.6 Why do I see different working temperatures for the device? ==
797
798
799 The working temperature range of the device depends on the battery the user chooses.
800
801 * A standard AAA battery can support a working range of -10°C to 50°C.
802 * A special AAA battery can support a working range of -40°C to 60°C. For example, [[Energizer L92>>url:https://data.energizer.com/pdfs/l92.pdf]][[url:https://data.energizer.com/pdfs/l92.pdf]]
803
804 = 8. Ordering Information =
805
806
807 **Part Number: (% style="color:blue" %)LWL02-XXX(%%)**
808
809 (% style="color:blue" %)**XXX:**
810
811 * (% style="color:red" %)**EU433**(%%): frequency  bands EU433
812 * (% style="color:red" %)**EU868**(%%): frequency  bands EU868
813 * (% style="color:red" %)**KR920**(%%): frequency  bands KR920
814 * (% style="color:red" %)**CN470**(%%): frequency bands CN470
815 * (% style="color:red" %)**AS923**(%%): frequency  bands AS923
816 * (% style="color:red" %)**AU915**(%%): frequency bands AU915
817 * (% style="color:red" %)**US915**(%%): frequency bands  US915
818 * (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
819
820 = 9. Packaging Information =
821
822
823 **Package Includes**:
824
825 * LWL02 x 1
826
827 = 10. Support =
828
829
830 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different time zones, we cannot offer live support. However, your questions will be answered as soon as possible during the aforementioned hours.
831 * Please provide as much information as possible regarding your inquiry (e.g., product models, a detailed description of the problem, and steps to replicate it), and send an email to  [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
832
833
834
835
836 * On the **Add LoRaWAN Device** window, **STEP 4**, select **Individual device plans** tab.
837 * Click **Free** option.
838 * Click on the **Add 1 Device** button.
839
840 * On the **Add LoRaWAN Device** window, **STEP 4**, select **Individual device plans** tab.
841 * Click **Free** option.
842 * Click on the **Add 1 Device** button.

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