Hide last authors
Xiaoling 2.2 1 (% style="text-align:center" %)
Xiaoling 33.2 2 [[image:1654679359875-169.png]]
Xiaoling 1.1 3
4
Xiaoling 17.3 5 **Contents:**
Xiaoling 1.1 6
Xiaoling 17.3 7 {{toc/}}
Xiaoling 1.1 8
9
10
Xiaoling 17.3 11
12
Xiaoling 2.2 13 = 1. Introduction =
Xiaoling 1.1 14
Xiaoling 33.2 15 == 1.1 What is LDS02 LoRaWAN Door Sensor ==
Xiaoling 1.1 16
17
Xiaoling 3.2 18 (((
Xiaoling 33.5 19 The Dragino LDS02 is a (% style="color:#037691" %)**LoRaWAN Door Sensor**(%%). It detects door open/close status and uplink to IoT server via LoRaWAN network. user can see the door status, open time, open counts in the IoT Server.
Xiaoling 1.1 20
Xiaoling 33.5 21 LDS02 is powered by (% style="color:#037691" %)**2 x AAA batteries**(%%) and target for long time use, these two batteries can provide about 16,000 ~~ 70,000 uplink packets. After battery running out, user can easily open the enclosure and replace with 2 common AAA batteries.
Xiaoling 1.2 22
Xiaoling 33.5 23 The LDS02 will send periodically data every day as well as for each door open/close action. It also (% style="color:#037691" %)**counts the door open times**(%%) and (% style="color:#037691" %)**calculate last door open duration**(%%). User can also disable the uplink for each open/close event, instead, device can count each open event and uplink periodically.
Xiaoling 1.2 24
Xiaoling 33.5 25 LDS02 has the (% style="color:#037691" %)**open alarm feature**(%%), user can set this feature so device will send Alarm if the door has been open for a certain time.
Xiaoling 33.2 26
Xiaoling 33.5 27 Each LDS02 is (% style="color:#037691" %)**pre-load with a set of unique keys**(%%) for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.
Xiaoling 3.2 28 )))
Xiaoling 1.2 29
Xiaoling 34.2 30 [[image:image-20220608171947-2.png]]
Xiaoling 1.2 31
32
33
Xiaoling 3.3 34 == 1.2 Features ==
Xiaoling 1.2 35
36 * LoRaWAN Class A v1.0.3
37 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
38 * SX1262 LoRa Core
39 * Water Leak detect
40 * 2 x AAA LR03 Batteries
41 * AT Commands to change parameters
42 * Uplink on periodically and open/close action
43 * Remote configure parameters via LoRa Downlink
44 * Firmware upgradable via program port
45
Xiaoling 3.4 46 == 1.3 Applications ==
47
Xiaoling 1.2 48 * Smart Buildings & Home Automation
49 * Logistics and Supply Chain Management
50 * Smart Metering
51 * Smart Agriculture
52 * Smart Cities
53 * Smart Factory
54
Xiaoling 5.2 55 == 1.4 Dimension ==
Xiaoling 1.2 56
Xiaoling 34.3 57 Unit: mm
Xiaoling 1.2 58
Xiaoling 37.2 59 [[image:1654680563545-120.png]]
Xiaoling 1.2 60
Xiaoling 5.2 61
Xiaoling 37.2 62 [[image:1654680510816-654.png]]
Xiaoling 5.2 63
Xiaoling 37.2 64
Xiaoling 5.2 65 == 1.5 Firmware Change log ==
66
Xiaoling 26.8 67 (((
Xiaoling 37.2 68 (((
69 LDS02 use the same firmware as LDS01.
Xiaoling 26.8 70 )))
Xiaoling 1.2 71
Xiaoling 26.8 72 (((
Xiaoling 37.2 73 [[LDS02 Image files – Download link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Firmware/]]
Xiaoling 26.8 74 )))
Xiaoling 37.2 75 )))
Xiaoling 1.2 76
77
Xiaoling 37.3 78 = 2. Power ON LDS02 =
Xiaoling 1.2 79
Xiaoling 37.3 80 When receive the LDS02, please open the enclosure and add 2 x AAA batteries to power it. The [[LED>>||anchor="H4.7LEDs"]] will blink when device is powered.
Xiaoling 1.2 81
82
Xiaoling 37.4 83 = 3. How to install LDS02 =
Xiaoling 1.2 84
Xiaoling 7.4 85 (((
Xiaoling 37.4 86 (((
87 When install the LDS02 on wall. Please make sure install as below so the marks will close to each other when close the door.
Xiaoling 7.4 88 )))
Xiaoling 1.2 89
Xiaoling 37.4 90 (((
91 Open/Close threshold range: ~~ 25mm
92 )))
93 )))
Xiaoling 1.2 94
Xiaoling 38.2 95 [[image:1654680716522-793.png]]
Xiaoling 1.2 96
97
Xiaoling 37.4 98
Xiaoling 7.2 99 = 4. Operation Mode =
Xiaoling 1.2 100
Xiaoling 7.2 101 == 4.1 How it works? ==
Xiaoling 1.2 102
Xiaoling 26.5 103 (((
Xiaoling 38.3 104 The LDS02 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and [[power on>>||anchor="H2.PowerONLWL02"]] the LDS02. It will auto join the network via OTAA.
Xiaoling 26.5 105 )))
Xiaoling 1.2 106
Xiaoling 26.5 107 (((
Xiaoling 7.3 108 In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H6.UseATCommand"]] to set the keys in the devices.
Xiaoling 26.5 109 )))
Xiaoling 1.2 110
111
Xiaoling 7.3 112 == 4.2 Example to join LoRaWAN network ==
Xiaoling 7.2 113
Xiaoling 1.6 114 Here shows an example for how to join the [[TTN V3 Network>>url:https://eu1.cloud.thethings.network/]]. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here. 
Xiaoling 1.2 115
Xiaoling 39.2 116 [[image:1654680810108-149.png]]
Xiaoling 1.2 117
118
Xiaoling 9.6 119 (((
Xiaoling 39.4 120 The LDS02 in installed on the door edge to detect the open / close event. And send the status to LoRaWAN server. The LDS02 will uplink two type of messages to the server.
Xiaoling 9.6 121 )))
Xiaoling 1.2 122
Xiaoling 9.6 123 * (((
124 A keep-alive message which send once per day.
125 )))
126 * (((
Xiaoling 39.3 127 A door event message when there is a door open/close. ([[Alarm event can be disabled>>||anchor="H7.3CanIdisableuplinkforeacheventtosavebatterylife3F"]])
Xiaoling 9.6 128 )))
Xiaoling 1.2 129
Xiaoling 9.6 130 (((
Xiaoling 29.2 131
132
Xiaoling 1.2 133 The LG308 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. What we need to now is only configure the TTN V3:
Xiaoling 9.6 134 )))
Xiaoling 1.2 135
Xiaoling 9.6 136 (((
Xiaoling 39.4 137 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from LDS02.
Xiaoling 9.6 138 )))
Xiaoling 1.2 139
Xiaoling 9.6 140 (((
Xiaoling 39.4 141 Each LDS02 is shipped with a sticker with unique device EUI:
Xiaoling 9.6 142 )))
Xiaoling 1.2 143
Xiaoling 9.2 144 [[image:1654671040430-368.png]]
Xiaoling 1.2 145
146
147 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
148
Xiaoling 14.3 149 **Add APP EUI in the application**
Xiaoling 1.2 150
Xiaoling 11.2 151 [[image:1654671794691-956.png]]
Xiaoling 1.2 152
153
Xiaoling 11.2 154 [[image:1654671809850-574.png]]
Xiaoling 1.2 155
Xiaoling 12.2 156 [[image:1654671820156-640.png]]
Xiaoling 1.2 157
158
Xiaoling 40.2 159 [[image:1654681258096-500.png]]
Xiaoling 1.2 160
161
Xiaoling 14.2 162 **Add APP KEY and DEV EUI**
Xiaoling 1.2 163
Xiaoling 40.2 164 [[image:1654671889112-678.png]]
Xiaoling 1.2 165
Xiaoling 40.2 166
Xiaoling 43.2 167 (% style="color:blue" %)**Step 2**(%%): **[[Power on>>||anchor="H2.PowerONLWL02"]]** LDS02 and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
Xiaoling 1.2 168
169
Xiaoling 43.2 170 [[image:1654681390551-993.png]]
Xiaoling 1.2 171
Xiaoling 40.2 172
173
Xiaoling 14.5 174 == 4.3 Uplink Payload ==
175
Xiaoling 26.11 176
Xiaoling 43.2 177 Uplink Payload total 10 bytes.
Xiaoling 1.2 178
Xiaoling 43.6 179 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:480px" %)
Xiaoling 43.4 180 |=(% style="width: 80px;" %)**Size(bytes)**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %)**3**|=(% style="width: 80px;" %)**3**|=(% style="width: 80px;" %)**1**
Xiaoling 43.2 181 |value|Status&BAT|(((
182 MOD
Xiaoling 1.2 183
Xiaoling 43.2 184 Always:0x01
185 )))|Total open door events|(((
186 Last door open
Xiaoling 26.10 187
Xiaoling 43.2 188 duration (unit: min)
Xiaoling 43.4 189 )))|[[Alarm>>||anchor="H4.6AlarmBaseonTimeout"]]
Xiaoling 43.2 190
Xiaoling 16.2 191 **Example:**
Xiaoling 1.2 192
Xiaoling 43.2 193 [[image:1654681706301-731.png]]
Xiaoling 1.2 194
Xiaoling 43.2 195 [[image:1654681714641-440.png]]
Xiaoling 1.2 196
Xiaoling 43.2 197
Xiaoling 16.3 198 (((
Xiaoling 43.3 199 Example Payload Decoder in TTN V3: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS02/Payload/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Payload/]]
Xiaoling 16.3 200 )))
Xiaoling 1.2 201
202
Xiaoling 16.4 203 == 4.4 Downlink Payload ==
Xiaoling 1.2 204
Xiaoling 26.9 205
Xiaoling 16.9 206 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:410px" %)
Xiaoling 16.7 207 |=(% style="width: 180px;" %)**Downlink Control Type**|=(% style="width: 80px;" %)**Type Code**|=(% style="width: 150px;" %)**Downlink payload size(bytes)**
208 |(% style="width:180px" %)TDC (Transmit Time Interval—Keep Alive Interval)|(% style="width:80px" %)0x01|(% style="width:150px" %)4
209 |(% style="width:180px" %)RESET|(% style="width:80px" %)0x04|(% style="width:224px" %)2
Xiaoling 17.4 210 |(% style="width:180px" %)[[Set confirmed mode>>||anchor="HTypeCode0x05"]]|(% style="width:80px" %)0x05|(% style="width:150px" %)2
211 |(% style="width:180px" %)[[Clear Counting>>||anchor="HTypeCode0xA6"]]|(% style="width:80px" %)0xA6|(% style="width:150px" %)2
212 |(% style="width:180px" %)[[Enable/Disable Alarm>>||anchor="HTypeCode0xA7"]]|(% style="width:80px" %)0xA7|(% style="width:150px" %)2
213 |(% style="width:180px" %)[[Control ADR/DR>>||anchor="HTypeCode0xA8"]]|(% style="width:80px" %)0xA8|(% style="width:150px" %)3
214 |(% style="width:180px" %)[[Set Alarm Timeout>>||anchor="HTypeCode0xA9"]]|(% style="width:80px" %)0xA9|(% style="width:150px" %)4
Xiaoling 1.2 215
216 Example Downlink payload setting in TTN V3:
217
Xiaoling 17.2 218 [[image:1654673412319-976.png]]
Xiaoling 1.2 219
220
Xiaoling 17.3 221 === (% style="color:#037691" %)**Type Code 0x01**(%%) ===
Xiaoling 1.2 222
Xiaoling 43.7 223 If the payload=0100003C, means to control the LDS02’s Keep Alive interval to 0x00003C=60(S)
Xiaoling 1.2 224
225
Xiaoling 17.3 226 === (% style="color:#037691" %)**Type Code 0x04**(%%) ===
Xiaoling 1.2 227
Xiaoling 43.7 228 If payload = 0x04FF, it will reset the LDS02.
Xiaoling 1.2 229
230
Xiaoling 17.3 231 === (% style="color:#037691" %)**Type Code 0x05**(%%) ===
Xiaoling 1.2 232
233 0x05 00: Set uplink to LoRaWAN unconfirmed mode
234
235 0x05 01: Set uplink to LoRaWAN confirmed mode
236
237
Xiaoling 17.3 238 === (% style="color:#037691" %)**Type Code 0xA6**(%%) ===
Xiaoling 1.2 239
240 Example: 0xA601: Clear Counting
Xiaoling 43.7 241 For LDS02: reset both count number and time.
Xiaoling 1.2 242
243
Xiaoling 17.3 244 === (% style="color:#037691" %)**Type Code 0xA7**(%%) ===
Xiaoling 1.2 245
246 0xA7 01 : Equal to AT+DISALARM=1
247
248 0xA7 00 : Equal to AT+DISALARM=0
249
250
Xiaoling 17.3 251 === (% style="color:#037691" %)**Type Code 0xA8**(%%) ===
Xiaoling 1.2 252
253 Format: 0xA8 aa bb
254
255 aa: 1: Enable ADR; 0: Disable ADR (Same as AT+CADR command)
256
257 bb: set DR (Same as AT+CDATARATE ,only valid after ADR=0)
258
259 Example: 0x A8 00 02 : Set ADR=0 and DR=1
260
261
Xiaoling 17.3 262 === (% style="color:#037691" %)**Type Code 0xA9**(%%) ===
Xiaoling 1.2 263
Xiaoling 17.7 264 See [[Alarm Base Timeout>>||anchor="H4.6AlarmBaseonTimeout"]] for detail.
Xiaoling 1.2 265
266
Xiaoling 17.8 267 == 4.5 Integrate with Datacake ==
Xiaoling 1.2 268
Xiaoling 21.5 269 (((
Xiaoling 1.2 270 Datacake provides a human friendly interface to show the sensor data, once we have data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
Xiaoling 21.5 271 )))
Xiaoling 1.2 272
273
Xiaoling 19.2 274 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
Xiaoling 1.2 275
Xiaoling 19.2 276 (% 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:
Xiaoling 1.2 277
278
Xiaoling 19.2 279 [[image:1654674520913-519.png]]
Xiaoling 1.2 280
281
Xiaoling 19.2 282 [[image:1654674530910-914.png]]
Xiaoling 1.2 283
284
Xiaoling 21.2 285 [[image:1654674543078-401.png]]
Xiaoling 1.2 286
287
Xiaoling 21.3 288 (% style="color:blue" %)**Step 3**(%%): Create an account or log in Datacake.
Xiaoling 1.2 289
Xiaoling 43.8 290 (% style="color:blue" %)**Step 4**(%%): Search LDS02 and add DevEUI.
Xiaoling 1.2 291
Xiaoling 21.2 292 [[image:1654674556510-911.png]]
Xiaoling 1.2 293
294
Xiaoling 17.8 295 == 4.6 Alarm Base on Timeout ==
Xiaoling 1.2 296
Xiaoling 23.4 297 (((
Xiaoling 43.8 298 (((
299 LDS02 can monitor the timeout for a status change, this feature can be used to monitor some event such as open fridge too long etc.
Xiaoling 23.4 300 )))
Xiaoling 1.2 301
Xiaoling 23.4 302 (((
Xiaoling 1.2 303 User configure this feature by using:
Xiaoling 23.4 304 )))
Xiaoling 43.8 305 )))
Xiaoling 1.2 306
Xiaoling 23.4 307 (((
Xiaoling 43.8 308 (((
Xiaoling 23.4 309
310 )))
Xiaoling 43.8 311 )))
Xiaoling 1.2 312
Xiaoling 23.4 313 (((
Xiaoling 43.8 314 (((
Xiaoling 21.5 315 (% style="color:blue" %)**AT Command**(%%) to configure:
Xiaoling 23.4 316 )))
Xiaoling 43.8 317 )))
Xiaoling 1.2 318
Xiaoling 23.4 319 * (((
Xiaoling 43.8 320 (((
Xiaoling 23.4 321 **AT+TTRIG=1,30 ** **~-~->** When status change from close to open, and device keep in open
322 )))
Xiaoling 43.8 323 )))
Xiaoling 1.2 324
Xiaoling 23.4 325 (((
Xiaoling 43.8 326 (((
Xiaoling 1.2 327 status for more than 30 seconds. LWL02 will send an uplink packet, the Alarm bit (the lowest bit of 10^^th^^ byte of payload) on this uplink packet is set to 1.
Xiaoling 23.4 328 )))
Xiaoling 43.8 329 )))
Xiaoling 1.2 330
Xiaoling 23.4 331 * (((
Xiaoling 43.8 332 (((
Xiaoling 23.4 333 **AT+TTIG=0,0**  **~-~->**  Default Value, disable timeout Alarm.
334 )))
Xiaoling 43.8 335 )))
Xiaoling 1.2 336
Xiaoling 23.4 337 (((
Xiaoling 43.8 338 (((
Xiaoling 21.5 339 (% style="color:blue" %)**Downlink Command**(%%) to configure:
Xiaoling 23.4 340 )))
Xiaoling 43.8 341 )))
Xiaoling 1.2 342
Xiaoling 23.4 343 (((
Xiaoling 43.8 344 (((
Xiaoling 21.6 345 **Command: 0xA9 aa bb cc**
Xiaoling 23.4 346 )))
Xiaoling 43.8 347 )))
Xiaoling 1.2 348
Xiaoling 23.4 349 (((
Xiaoling 43.8 350 (((
Xiaoling 1.2 351 A9: Command Type Code
Xiaoling 23.4 352 )))
Xiaoling 43.8 353 )))
Xiaoling 1.2 354
Xiaoling 23.4 355 (((
Xiaoling 43.8 356 (((
Xiaoling 1.2 357 aa: status to be monitor
Xiaoling 23.4 358 )))
Xiaoling 43.8 359 )))
Xiaoling 1.2 360
Xiaoling 23.4 361 (((
Xiaoling 43.8 362 (((
Xiaoling 1.2 363 bb cc: timeout.
Xiaoling 23.4 364 )))
Xiaoling 43.8 365 )))
Xiaoling 1.2 366
Xiaoling 23.4 367 (((
Xiaoling 43.8 368 (((
Xiaoling 23.4 369
370 )))
Xiaoling 43.8 371 )))
Xiaoling 1.2 372
Xiaoling 23.4 373 (((
Xiaoling 43.8 374 (((
Xiaoling 1.2 375 If user send 0xA9 01 00 1E: equal to AT+TTRIG=1,30
Xiaoling 23.4 376 )))
Xiaoling 43.8 377 )))
Xiaoling 1.2 378
Xiaoling 23.4 379 (((
Xiaoling 43.8 380 (((
Xiaoling 1.2 381 Or
Xiaoling 23.4 382 )))
Xiaoling 43.8 383 )))
Xiaoling 1.2 384
Xiaoling 23.4 385 (((
Xiaoling 43.8 386 (((
Xiaoling 1.2 387 0xA9 00 00 00: Equal to AT+TTRIG=0,0. Disable timeout Alarm.
Xiaoling 23.4 388 )))
Xiaoling 43.8 389 )))
Xiaoling 1.2 390
391
392
Xiaoling 17.8 393 == 4.7 LEDs ==
Xiaoling 1.2 394
Xiaoling 25.9 395
Xiaoling 21.7 396 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:463px" %)
397 |=(% style="width: 184px;" %)**Action**|=(% style="width: 275px;" %)**LED behavior**
398 |(% style="width:184px" %)Power On|(% style="width:275px" %)(% style="color:green" %)**GREEN on 1s, **(% style="color:red" %)**RED on 1s,**(%%)** (% style="color:blue" %)BLUE on 1s(%%)**
399 |(% style="width:184px" %)Joined successful|(% style="width:275px" %)(% style="color:green" %)**GRENN LED **(%%)on 5s
400 |(% style="width:184px" %)Send an uplink message|(% style="width:275px" %)(% style="color:green" %)**GREEN LED**(%%) blinks once
401 |(% style="width:184px" %)Got a downlink message|(% style="width:275px" %)(% style="color:blue" %)**BLUE LED**(%%) blinks once
Xiaoling 1.2 402
Xiaoling 43.9 403
404
Xiaoling 21.8 405 = 5. Battery & How to replace =
406
407 == 5.1 Battery Type and replace ==
408
Xiaoling 22.3 409 (((
Xiaoling 43.10 410 LDS02 is equipped with 2 x AAA LR03 batteries. If the batteries running low (shows 2.1v in the platform). User can buy generic AAA battery and replace it.
Xiaoling 1.2 411
Xiaoling 43.10 412 **Note:**
413
414 1. The LDS02 doesn’t have any screw, use can use nail to open it by the middle.
415 1. Make sure the direction is correct when install the AAA batteries.
Xiaoling 22.3 416 )))
Xiaoling 1.2 417
Xiaoling 22.3 418 (((
Xiaoling 22.2 419 (% style="color:red" %)**Important Notice: Make sure use new AAA LR03 battery and the battery doesn’t have broken surface.**
Xiaoling 22.3 420 )))
Xiaoling 1.2 421
Xiaoling 22.3 422 (((
423
424 )))
Xiaoling 1.2 425
Xiaoling 22.3 426 (((
Xiaoling 1.2 427 Example of AAA LR03 batter:
Xiaoling 22.3 428 )))
Xiaoling 1.2 429
Xiaoling 22.2 430 [[image:1654675278044-307.png]]
Xiaoling 1.2 431
432
Xiaoling 22.4 433 == 5.2 Power Consumption Analyze ==
434
Xiaoling 26.6 435 (((
Xiaoling 1.2 436 Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
Xiaoling 26.6 437 )))
Xiaoling 1.2 438
Xiaoling 26.6 439 (((
Xiaoling 1.2 440 [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
Xiaoling 26.6 441 )))
Xiaoling 1.2 442
443
Xiaoling 22.4 444 = 6. Use AT Command =
Xiaoling 1.2 445
Xiaoling 22.4 446 == 6.1 Access AT Command ==
447
Xiaoling 1.2 448 LWL02 supports AT Command set. User can use a USB to TTL adapter to configure LWL02 via use AT command, as below.
449
Xiaoling 23.2 450 [[image:image-20220608160336-1.png]]
Xiaoling 1.2 451
452
Xiaoling 23.7 453 (% style="background-color:yellow" %)**USB to TTL <- -> LWL02**
Xiaoling 1.2 454
Xiaoling 23.7 455 (% style="background-color:yellow" %)**RX <- -> TX**
Xiaoling 1.2 456
Xiaoling 23.7 457 (% style="background-color:yellow" %)**TX <- -> RX**
458
459 (% style="background-color:yellow" %)**GND <- -> GND**
460
Xiaoling 24.3 461
462 (((
Xiaoling 24.2 463 In PC, User needs to set (% style="color:#037691" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**115200**(%%) to access to access serial console of LWL02. Below is the output for reference:
Xiaoling 24.3 464 )))
Xiaoling 1.2 465
Xiaoling 24.3 466 (((
Xiaoling 24.2 467 The AT Access password is (% style="color:red" %)**123456**.
Xiaoling 24.3 468 )))
Xiaoling 1.2 469
Xiaoling 24.2 470 [[image:1654675618022-630.png]]
Xiaoling 1.2 471
Xiaoling 26.7 472 (((
Xiaoling 24.4 473 Each AT Command need to (% style="color:red" %)**add an ENTER**(%%) at the end before send.
Xiaoling 26.7 474 )))
Xiaoling 1.2 475
Xiaoling 26.7 476 (((
Xiaoling 24.4 477 When entering the first command, the (% style="color:red" %)**RED LED**(%%) will on and user can now input AT Commands. After input all needed AT Commands, please input AT+CLPM=1 to set the device to work in Low Power mode and (% style="color:red" %)**RED LED**(%%) will be off.
Xiaoling 26.7 478 )))
Xiaoling 1.2 479
Xiaoling 26.7 480 (((
Xiaoling 1.2 481 More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/]]
Xiaoling 26.7 482 )))
Xiaoling 1.2 483
484
Xiaoling 1.5 485 = 7. FAQ =
486
487 == 7.1 How to upgrade the image? ==
488
Xiaoling 25.12 489 User can upgrade the of LWL02 for bug fix, new features, or change working region. The upgrade instruction is here: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
Xiaoling 1.2 490
491
Xiaoling 1.5 492 == 7.2 How to change the LoRa Frequency Bands/Region? ==
Xiaoling 1.2 493
Xiaoling 24.7 494 If user has for example US915 frequency and want to change it to AS923 frequency. User can follow the introduction for [[how to upgrade image>>||anchor="H7.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
Xiaoling 1.2 495
496
Xiaoling 1.5 497 == 7.3 Can I disable uplink for each event to save battery life? ==
498
Xiaoling 1.2 499 Yes, User can use below method to disable this:
500
Xiaoling 1.6 501 (% style="color:#4f81bd" %)**via AT Command**:
Xiaoling 1.2 502
503 AT+DISALARM=1, End node will only send packet in TDC time.
504
Xiaoling 1.6 505 AT+DISALARM=0, End node will send packet in TDC time or status change for door sensor. 
Xiaoling 1.2 506
Xiaoling 1.6 507 (% style="color:#4f81bd" %)**via LoRaWAN downlink Command**:
Xiaoling 1.2 508
509 0xA701 : Equal to AT+DISALARM=1
510
511 0xA700 : Equal to AT+DISALARM=0
512
513
Xiaoling 1.5 514 = 8. Order Info =
Xiaoling 1.2 515
Xiaoling 1.6 516 **Part Number: (% style="color:blue" %)LWL02-XXX(%%)**
Xiaoling 1.2 517
Xiaoling 1.6 518 (% style="color:blue" %)**XXX:**
Xiaoling 1.2 519
Xiaoling 1.10 520 * (% style="color:red" %)**EU433**(%%): frequency  bands EU433
521 * (% style="color:red" %)**EU868**(%%): frequency  bands EU868
522 * (% style="color:red" %)**KR920**(%%): frequency  bands KR920
Xiaoling 1.6 523 * (% style="color:red" %)**CN470**(%%): frequency bands CN470
Xiaoling 1.10 524 * (% style="color:red" %)**AS923**(%%): frequency  bands AS923
Xiaoling 1.6 525 * (% style="color:red" %)**AU915**(%%): frequency bands AU915
Xiaoling 1.10 526 * (% style="color:red" %)**US915**(%%): frequency bands  US915
527 * (% style="color:red" %)**IN865**(%%):  frequency bands  IN865
Xiaoling 1.6 528 * (% style="color:red" %)**CN779**(%%): frequency bands CN779
Xiaoling 1.2 529
Xiaoling 1.4 530 = 9. Packing Info =
531
Xiaoling 1.2 532 **Package Includes**:
533
534 * LWL02 x 1
535
Xiaoling 31.2 536 = 10. Support =
Xiaoling 1.2 537
538 * 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.
539 * 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:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
540
Xiaoling 43.3 541
Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0