Version 73.9 by Xiaoling on 2023/06/13 11:25

Hide last authors
Ellie Zhang 26.1 1 (% style="text-align:center" %)
Xiaoling 73.8 2 [[image:image-20230613100900-1.png||height="650" width="650"]]
Edwin Chen 1.1 3
4
Xiaoling 67.2 5
kai 31.2 6 **Table of Contents:**
Ellie Zhang 30.1 7
Edwin Chen 1.1 8 {{toc/}}
9
10
11
12
13
14
kai 31.1 15 = 1. Introduction =
Edwin Chen 1.1 16
Xiaoling 70.3 17 == 1.1 What is LoRaWAN Distance Detection Sensor ==
Edwin Chen 1.1 18
Xiaoling 39.6 19
Xiaoling 71.3 20 The Dragino DDS45-LB is a (% style="color:blue" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:blue" %)** ultrasonic sensing technology**(%%) for (% style="color:blue" %)**distance measurement**(%%), and (% style="color:blue" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The DDS45-LB can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
Edwin Chen 1.1 21
Xiaoling 70.4 22 It detects the distance(% style="color:blue" %)**  between the measured object and the sensor**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
Edwin Chen 1.1 23
Xiaoling 71.3 24 The LoRa wireless technology used in DDS45-LB 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.
Edwin Chen 1.1 25
Xiaoling 71.3 26 DDS45-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
Xiaoling 62.4 27
Xiaoling 71.3 28 DDS45-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
Edwin Chen 1.1 29
Xiaoling 71.3 30 Each DDS45-LB 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.
Edwin Chen 1.1 31
Xiaoling 73.2 32 [[image:image-20230613102459-3.png||height="476" width="855"]]
Edwin Chen 1.1 33
Xiaoling 64.2 34
Edwin Chen 1.1 35 == 1.2 ​Features ==
36
Xiaoling 39.6 37
Edwin Chen 1.1 38 * LoRaWAN 1.0.3 Class A
Xiaoling 62.4 39 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
Edwin Chen 1.1 40 * Ultra-low power consumption
Xiaoling 70.5 41 * Distance Detection by Ultrasonic technology
Xiaoling 73.3 42 * Flat object range 30mm - 4500mm
Xiaoling 70.5 43 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
Xiaoling 73.3 44 * Measure Angle: 60°
Xiaoling 70.5 45 * Cable Length : 25cm
Edwin Chen 1.1 46 * Support Bluetooth v5.1 and LoRaWAN remote configure
47 * Support wireless OTA update firmware
Xiaoling 70.5 48 * AT Commands to change parameters
Edwin Chen 1.1 49 * Downlink to change configure
Xiaoling 70.5 50 * IP66 Waterproof Enclosure
Edwin Chen 1.1 51 * 8500mAh Battery for long term use
52
Xiaoling 73.9 53
54
Edwin Chen 1.1 55 == 1.3 Specification ==
56
57
Xiaoling 70.28 58 (% style="color:#037691" %)**Common DC Characteristics:**
Xiaoling 70.6 59
Xiaoling 70.28 60 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
61 * Operating Temperature: -40 ~~ 85°C
62
63 (% style="color:#037691" %)**LoRa Spec:**
64
65 * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
66 * Max +22 dBm constant RF output vs.
67 * RX sensitivity: down to -139 dBm.
68 * Excellent blocking immunity
69
70 (% style="color:#037691" %)**Battery:**
71
72 * Li/SOCI2 un-chargeable battery
73 * Capacity: 8500mAh
74 * Self-Discharge: <1% / Year @ 25°C
75 * Max continuously current: 130mA
76 * Max boost current: 2A, 1 second
77
78 (% style="color:#037691" %)**Power Consumption**
79
80 * Sleep Mode: 5uA @ 3.3v
81 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
82
Xiaoling 73.9 83
84
Xiaoling 70.28 85 == 1.4 Rated environmental conditions ==
86
87
Xiaoling 70.6 88 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
89 |(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
90 **Minimum value**
91 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
92 **Typical value**
93 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
94 **Maximum value**
95 )))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks**
96 |(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
97 |(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
98 |(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
99 |(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
100
101
102
103 )))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
104
105 (((
Xiaoling 70.20 106 (% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
Xiaoling 70.6 107
Xiaoling 70.20 108 (% style="color:red" %)** b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
Xiaoling 70.6 109
110
111 )))
112
Xiaoling 70.28 113 == 1.5 Effective measurement range Reference beam pattern ==
Edwin Chen 1.1 114
115
Xiaoling 70.19 116 (% style="color:blue" %)**1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
Xiaoling 62.4 117
Xiaoling 70.6 118 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]]
Xiaoling 62.4 119
Xiaoling 70.6 120
Xiaoling 70.19 121 (% style="color:blue" %)**2. The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
Xiaoling 70.6 122
123 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]]
124
125
Xiaoling 70.28 126 == 1.6 Applications ==
Xiaoling 70.6 127
128
129 * Horizontal distance measurement
130 * Liquid level measurement
131 * Parking management system
132 * Object proximity and presence detection
133 * Intelligent trash can management system
134 * Robot obstacle avoidance
135 * Automatic control
136 * Sewer
137 * Bottom water level monitoring
138
Xiaoling 73.9 139
140
Xiaoling 70.28 141 == 1.7 Sleep mode and working mode ==
Xiaoling 70.6 142
143
Edwin Chen 1.1 144 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
145
146 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
147
148
Xiaoling 70.28 149 == 1.8 Button & LEDs ==
Edwin Chen 1.1 150
151
Edwin Chen 6.1 152 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
Edwin Chen 1.1 153
154
Xiaoling 14.13 155 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
Xiaoling 14.11 156 |=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
Edwin Chen 1.1 157 |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
158 If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
159 Meanwhile, BLE module will be active and user can connect via BLE to configure device.
160 )))
161 |(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
162 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
163 (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
164 Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
165 )))
Edwin Chen 6.1 166 |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
Edwin Chen 1.1 167
Xiaoling 73.9 168
169
Xiaoling 70.28 170 == 1.9 BLE connection ==
Edwin Chen 1.1 171
172
Xiaoling 71.3 173 DDS45-LB support BLE remote configure.
Edwin Chen 1.1 174
175
176 BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
177
178 * Press button to send an uplink
179 * Press button to active device.
180 * Device Power on or reset.
181
182 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
183
184
Xiaoling 70.28 185 == 1.10 Pin Definitions ==
Edwin Chen 1.1 186
Saxer Lin 43.1 187 [[image:image-20230523174230-1.png]]
Edwin Chen 1.1 188
Saxer Lin 43.1 189
Xiaoling 70.28 190 == 1.11 Mechanical ==
Xiaoling 67.4 191
192
Edwin Chen 6.1 193 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
Edwin Chen 1.1 194
195
Edwin Chen 6.1 196 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
Edwin Chen 1.1 197
198
Edwin Chen 6.1 199 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
Edwin Chen 1.1 200
201
Xiaoling 70.20 202 (% style="color:blue" %)**Probe Mechanical:**
Xiaoling 70.10 203
Xiaoling 73.4 204 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS45%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654915562090-396.png?rev=1.1||alt="1654915562090-396.png"]]
Xiaoling 70.10 205
206
Xiaoling 71.3 207 = 2. Configure DDS45-LB to connect to LoRaWAN network =
Xiaoling 67.4 208
Edwin Chen 1.1 209 == 2.1 How it works ==
210
211
Xiaoling 71.3 212 The DDS45-LB is configured as (% style="color:#037691" %)**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 press the button to activate the DDS45-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
Edwin Chen 1.1 213
Xiaoling 64.2 214 (% style="display:none" %) (%%)
Edwin Chen 1.1 215
216 == 2.2 ​Quick guide to connect to LoRaWAN server (OTAA) ==
217
218
219 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 [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
220
Xiaoling 62.5 221 The LPS8v2 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.
Edwin Chen 1.1 222
Xiaoling 73.2 223 [[image:image-20230613102426-2.png||height="476" width="855"]](% style="display:none" %)
Edwin Chen 1.1 224
Xiaoling 64.2 225
Xiaoling 71.3 226 (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
Edwin Chen 1.1 227
Xiaoling 71.3 228 Each DDS45-LB is shipped with a sticker with the default device EUI as below:
Edwin Chen 1.1 229
Ellie Zhang 30.1 230 [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
Edwin Chen 1.1 231
232
233 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
234
235
236 (% style="color:blue" %)**Register the device**
237
Xiaoling 14.13 238 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
Edwin Chen 1.1 239
240
241 (% style="color:blue" %)**Add APP EUI and DEV EUI**
242
Ellie Zhang 30.1 243 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
Edwin Chen 1.1 244
245
246 (% style="color:blue" %)**Add APP EUI in the application**
247
248
Ellie Zhang 30.1 249 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
Edwin Chen 1.1 250
251
252 (% style="color:blue" %)**Add APP KEY**
253
Ellie Zhang 30.1 254 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
Edwin Chen 1.1 255
256
Xiaoling 71.3 257 (% style="color:blue" %)**Step 2:**(%%) Activate on DDS45-LB
Edwin Chen 1.1 258
259
Xiaoling 71.3 260 Press the button for 5 seconds to activate the DDS45-LB.
Edwin Chen 6.1 261
Edwin Chen 1.1 262 (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
263
264 After join success, it will start to upload messages to TTN and you can see the messages in the panel.
265
266
Xiaoling 70.10 267 == 2.3  ​Uplink Payload ==
Edwin Chen 1.1 268
269
Xiaoling 62.5 270 (((
Xiaoling 71.3 271 DDS45-LB will uplink payload via LoRaWAN with below payload format: 
Xiaoling 62.5 272 )))
Edwin Chen 1.1 273
Xiaoling 62.5 274 (((
Xiaoling 70.21 275 Uplink payload includes in total 8 bytes.
Xiaoling 62.5 276 )))
Edwin Chen 1.1 277
Xiaoling 67.7 278 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
Xiaoling 70.10 279 |=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
280 **Size(bytes)**
281 )))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)1|=(% style="background-color:#D9E2F3;color:#0070C0" %)2|=(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
282 |(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
283 [[Distance>>||anchor="H2.3.2A0Distance"]]
284 (unit: mm)
285 )))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
286 [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
287 )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
Edwin Chen 1.1 288
Xiaoling 70.10 289 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
Edwin Chen 1.1 290
291
Xiaoling 70.10 292 === 2.3.1  Battery Info ===
Edwin Chen 1.1 293
294
Xiaoling 71.3 295 Check the battery voltage for DDS45-LB.
Edwin Chen 1.1 296
Xiaoling 70.10 297 Ex1: 0x0B45 = 2885mV
Edwin Chen 1.1 298
Xiaoling 70.10 299 Ex2: 0x0B49 = 2889mV
Saxer Lin 46.1 300
Edwin Chen 1.1 301
Xiaoling 70.10 302 === 2.3.2  Distance ===
Xiaoling 67.7 303
304
Xiaoling 70.10 305 (((
Xiaoling 73.5 306 Get the distance. Flat object range 30mm - 4500mm.
Xiaoling 62.5 307 )))
Edwin Chen 1.1 308
Xiaoling 62.5 309 (((
Xiaoling 73.5 310 For example, if the data you get from the register is **0x0B 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
Xiaoling 14.22 311
Xiaoling 73.5 312 (% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
Xiaoling 62.5 313 )))
Edwin Chen 1.1 314
315
Xiaoling 70.10 316 * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
Xiaoling 73.5 317 * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
Xiaoling 67.7 318
Xiaoling 73.6 319
320
Xiaoling 70.10 321 === 2.3.3  Interrupt Pin ===
Xiaoling 67.7 322
Edwin Chen 10.1 323
Xiaoling 70.22 324 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
Edwin Chen 1.1 325
Xiaoling 70.10 326 **Example:**
Edwin Chen 1.1 327
Xiaoling 70.10 328 0x00: Normal uplink packet.
Edwin Chen 1.1 329
Xiaoling 70.10 330 0x01: Interrupt Uplink Packet.
Edwin Chen 1.1 331
332
Xiaoling 70.10 333 === 2.3.4  DS18B20 Temperature sensor ===
Xiaoling 62.5 334
Edwin Chen 1.1 335
Xiaoling 70.10 336 This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
Edwin Chen 1.1 337
Xiaoling 70.10 338 **Example**:
Edwin Chen 1.1 339
Xiaoling 70.10 340 If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
Xiaoling 39.5 341
Xiaoling 70.10 342 If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
Edwin Chen 1.1 343
344
Xiaoling 70.10 345 === 2.3.5  Sensor Flag ===
Edwin Chen 1.1 346
347
Saxer Lin 55.1 348 (((
Xiaoling 70.10 349 0x01: Detect Ultrasonic Sensor
Saxer Lin 55.1 350 )))
351
352 (((
Xiaoling 70.10 353 0x00: No Ultrasonic Sensor
Saxer Lin 55.1 354 )))
Saxer Lin 46.1 355
356
Xiaoling 70.10 357 === 2.3.6  Decode payload in The Things Network ===
Edwin Chen 1.1 358
Saxer Lin 55.1 359
Xiaoling 70.10 360 While using TTN network, you can add the payload format to decode the payload.
Edwin Chen 1.1 361
Xiaoling 70.10 362 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850829385-439.png?rev=1.1||alt="1654850829385-439.png"]]
Edwin Chen 1.1 363
Xiaoling 70.10 364 The payload decoder function for TTN V3 is here:
Edwin Chen 1.1 365
Xiaoling 62.5 366 (((
Xiaoling 71.3 367 DDS45-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
Xiaoling 62.5 368 )))
Edwin Chen 1.1 369
370
Xiaoling 70.10 371 == 2.4  Uplink Interval ==
Edwin Chen 1.1 372
373
Xiaoling 71.3 374 The DDS45-LB 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>>||anchor="H3.3.1SetTransmitIntervalTime"]]
Edwin Chen 1.1 375
Xiaoling 70.10 376
377 == 2.5  ​Show Data in DataCake IoT Server ==
378
379
Xiaoling 62.5 380 (((
Xiaoling 70.10 381 [[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:
Xiaoling 62.5 382 )))
Edwin Chen 1.1 383
384
Xiaoling 62.5 385 (((
Xiaoling 70.10 386 (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
Xiaoling 62.5 387 )))
Edwin Chen 1.1 388
Xiaoling 62.5 389 (((
Xiaoling 70.10 390 (% 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 62.5 391 )))
Xiaoling 14.26 392
Saxer Lin 55.1 393
Xiaoling 70.10 394 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1||alt="1654592790040-760.png"]]
Edwin Chen 1.1 395
396
Xiaoling 70.10 397 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
Edwin Chen 1.1 398
399
Xiaoling 70.10 400 (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
Edwin Chen 1.1 401
Xiaoling 71.3 402 (% style="color:blue" %)**Step 4**(%%)**: Search the DDS45-LB and add DevEUI.**
Edwin Chen 1.1 403
Xiaoling 70.10 404 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
Xiaoling 62.5 405
Edwin Chen 1.1 406
Xiaoling 70.10 407 After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
Edwin Chen 1.1 408
Xiaoling 70.10 409 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
Edwin Chen 1.1 410
411
412
Xiaoling 70.10 413 == 2.6 Datalog Feature ==
Edwin Chen 1.1 414
415
Xiaoling 71.3 416 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS45-LB will store the reading for future retrieving purposes.
Xiaoling 62.5 417
418
Xiaoling 70.10 419 === 2.6.1 Ways to get datalog via LoRaWAN ===
Xiaoling 62.5 420
421
Xiaoling 71.3 422 Set PNACKMD=1, DDS45-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS45-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
Xiaoling 62.5 423
424 * (((
Xiaoling 71.3 425 a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
Xiaoling 62.5 426 )))
427 * (((
Xiaoling 71.3 428 b) DDS45-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS45-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS45-LB gets a ACK, DDS45-LB will consider there is a network connection and resend all NONE-ACK messages.
Xiaoling 62.5 429 )))
430
431 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
432
433 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
434
435
Xiaoling 70.10 436 === 2.6.2 Unix TimeStamp ===
Xiaoling 62.5 437
438
Xiaoling 71.3 439 DDS45-LB uses Unix TimeStamp format based on
Xiaoling 62.5 440
441 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
442
443 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
444
445 Below is the converter example
446
447 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
448
449
450 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
451
452
Xiaoling 70.10 453 === 2.6.3 Set Device Time ===
Xiaoling 62.5 454
455
456 User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
457
Xiaoling 71.4 458 Once DDS45-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS45-LB. If DDS45-LB fails to get the time from the server, DDS45-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
Xiaoling 62.5 459
460 (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
461
462
Xiaoling 70.10 463 === 2.6.4 Poll sensor value ===
Xiaoling 62.5 464
465
466 Users can poll sensor values based on timestamps. Below is the downlink command.
467
468 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
469 |(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
470 |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
471 |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
472
473 (((
474 Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
475 )))
476
477 (((
Xiaoling 64.8 478 For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]
Xiaoling 62.5 479 )))
480
481 (((
482 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
483 )))
484
485 (((
Xiaoling 71.3 486 Uplink Internal =5s,means DDS45-LB will send one packet every 5s. range 5~~255s.
Xiaoling 62.5 487 )))
488
489
Xiaoling 70.10 490 == 2.7 Frequency Plans ==
Edwin Chen 1.1 491
492
Xiaoling 71.3 493 The DDS45-LB 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.
Edwin Chen 1.1 494
495 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
496
497
Xiaoling 71.3 498 = 3. Configure DDS45-LB =
Edwin Chen 1.1 499
kai 16.4 500 == 3.1 Configure Methods ==
Edwin Chen 1.1 501
502
Xiaoling 71.3 503 DDS45-LB supports below configure method:
Edwin Chen 1.1 504
505 * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
Xiaoling 67.20 506
Edwin Chen 11.1 507 * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
Xiaoling 67.20 508
Edwin Chen 1.1 509 * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
510
Xiaoling 73.9 511
512
Edwin Chen 1.1 513 == 3.2 General Commands ==
514
515
516 These commands are to configure:
517
518 * General system settings like: uplink interval.
Xiaoling 67.20 519
Edwin Chen 1.1 520 * LoRaWAN protocol & radio related command.
521
522 They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
523
524 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
525
526
Xiaoling 71.3 527 == 3.3 Commands special design for DDS45-LB ==
Edwin Chen 1.1 528
529
Xiaoling 71.3 530 These commands only valid for DDS45-LB, as below:
Edwin Chen 1.1 531
532
533 === 3.3.1 Set Transmit Interval Time ===
534
535
Xiaoling 62.5 536 (((
Edwin Chen 1.1 537 Feature: Change LoRaWAN End Node Transmit Interval.
Xiaoling 62.5 538 )))
539
540 (((
Edwin Chen 1.1 541 (% style="color:blue" %)**AT Command: AT+TDC**
Xiaoling 62.5 542 )))
Edwin Chen 1.1 543
Xiaoling 14.34 544 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
Xiaoling 62.5 545 |=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)**Function**|=(% style="background-color:#D9E2F3; color:#0070c0" %)**Response**
Edwin Chen 1.1 546 |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
547 30000
548 OK
549 the interval is 30000ms = 30s
550 )))
551 |(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((
552 OK
553 Set transmit interval to 60000ms = 60 seconds
554 )))
555
Xiaoling 62.5 556 (((
Edwin Chen 1.1 557 (% style="color:blue" %)**Downlink Command: 0x01**
Xiaoling 62.5 558 )))
Edwin Chen 1.1 559
Xiaoling 62.5 560 (((
Edwin Chen 1.1 561 Format: Command Code (0x01) followed by 3 bytes time value.
Xiaoling 62.5 562 )))
Edwin Chen 1.1 563
Xiaoling 62.5 564 (((
Edwin Chen 1.1 565 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
Xiaoling 62.5 566 )))
Edwin Chen 1.1 567
Xiaoling 62.5 568 * (((
569 Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
570 )))
571 * (((
Xiaoling 73.8 572 Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
Xiaoling 73.7 573 )))
Xiaoling 70.29 574
575
Edwin Chen 1.1 576
Xiaoling 70.11 577 === 3.3.2 Set Interrupt Mode ===
Xiaoling 62.5 578
579
Saxer Lin 43.1 580 Feature, Set Interrupt mode for PA8 of pin.
Edwin Chen 1.1 581
Saxer Lin 46.1 582 When AT+INTMOD=0 is set, PA8 is used as a digital input port.
583
Edwin Chen 1.1 584 (% style="color:blue" %)**AT Command: AT+INTMOD**
585
Xiaoling 14.34 586 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
Xiaoling 62.5 587 |=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
Edwin Chen 1.1 588 |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
589 0
590 OK
591 the mode is 0 =Disable Interrupt
592 )))
593 |(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
594 Set Transmit Interval
595 0. (Disable Interrupt),
596 ~1. (Trigger by rising and falling edge)
597 2. (Trigger by falling edge)
598 3. (Trigger by rising edge)
599 )))|(% style="width:157px" %)OK
600
601 (% style="color:blue" %)**Downlink Command: 0x06**
602
603 Format: Command Code (0x06) followed by 3 bytes.
604
605 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
606
607 * Example 1: Downlink Payload: 06000000  ~/~/  Turn off interrupt mode
Xiaoling 62.6 608
Edwin Chen 1.1 609 * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
610
Xiaoling 73.7 611
612
kai 16.4 613 = 4. Battery & Power Consumption =
Xiaoling 14.45 614
Edwin Chen 1.1 615
Xiaoling 71.3 616 DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
Edwin Chen 1.1 617
618 [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
619
620
kai 16.4 621 = 5. OTA Firmware update =
Edwin Chen 1.1 622
623
Edwin Chen 13.1 624 (% class="wikigeneratedid" %)
Xiaoling 71.4 625 User can change firmware DDS45-LB to:
Edwin Chen 1.1 626
Edwin Chen 13.1 627 * Change Frequency band/ region.
Xiaoling 62.7 628
Edwin Chen 13.1 629 * Update with new features.
Xiaoling 62.7 630
Edwin Chen 13.1 631 * Fix bugs.
Edwin Chen 1.1 632
Xiaoling 73.7 633 Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]**
Edwin Chen 1.1 634
kai 31.1 635 Methods to Update Firmware:
Edwin Chen 1.1 636
Xiaoling 70.18 637 * (Recommanded way) OTA firmware update via wireless:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
Xiaoling 62.7 638
Xiaoling 70.18 639 * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
Edwin Chen 1.1 640
Xiaoling 73.7 641
642
kai 31.1 643 = 6. FAQ =
Edwin Chen 1.1 644
Xiaoling 71.4 645 == 6.1  What is the frequency plan for DDS45-LB? ==
Edwin Chen 1.1 646
Xiaoling 62.7 647
Xiaoling 71.4 648 DDS45-LB use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
Xiaoling 62.7 649
Edwin Chen 1.1 650
Xiaoling 71.4 651 == 6.2  Can I use DDS45-LB in condensation environment? ==
Edwin Chen 1.1 652
653
Xiaoling 71.4 654 DDS45-LB is not suitable to be used in condensation environment. Condensation on the DDS45-LB probe will affect the reading and always got 0.
Xiaoling 70.14 655
656
657 = 7.  Trouble Shooting =
658
659 == 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
660
661
662 It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
663
664
665 == 7.2  AT Command input doesn't work ==
666
667
668 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:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
669
670
671 == 7.3  Why does the sensor reading show 0 or "No sensor" ==
672
673
674 ~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
675
676 2. Sensor wiring is disconnected
677
678 3. Not using the correct decoder
679
680
Xiaoling 70.17 681 == 7.4  Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large ==
Xiaoling 70.14 682
683
684 1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
685
686 2) Does it change with temperature, temperature will affect its measurement
687
688 3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
689
690 downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
691
692 4) After entering the debug mode, it will send 20 pieces of data at a time, and you can send its uplink to us for analysis
693
Xiaoling 70.17 694 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20230113135125-2.png?width=1057&height=136&rev=1.1||alt="image-20230113135125-2.png"]]
Xiaoling 70.14 695
696
697 Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
698
699 Please send the data to us for check.
700
701
702 = 8. Order Info =
703
704
Xiaoling 71.4 705 Part Number: (% style="color:blue" %)**DDS45-LB-XXX**
Xiaoling 70.14 706
Xiaoling 70.12 707 (% style="color:red" %)**XXX**(%%): **The default frequency band**
Edwin Chen 1.1 708
Ellie Zhang 38.1 709 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
Edwin Chen 1.1 710
Ellie Zhang 38.1 711 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
Edwin Chen 1.1 712
Ellie Zhang 38.1 713 * (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
Edwin Chen 1.1 714
Ellie Zhang 38.1 715 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
Edwin Chen 1.1 716
Ellie Zhang 38.1 717 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
Edwin Chen 1.1 718
Ellie Zhang 38.1 719 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
Edwin Chen 1.1 720
Ellie Zhang 38.1 721 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
Edwin Chen 1.1 722
Ellie Zhang 38.1 723 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
Edwin Chen 1.1 724
Xiaoling 73.8 725
726
Xiaoling 70.14 727 = 9. ​Packing Info =
Xiaoling 67.11 728
729
Ellie Zhang 39.1 730 (% style="color:#037691" %)**Package Includes**:
Edwin Chen 1.1 731
Xiaoling 71.4 732 * DDS45-LB LoRaWAN Distance Detection Sensor x 1
Edwin Chen 1.1 733
Ellie Zhang 39.1 734 (% style="color:#037691" %)**Dimension and weight**:
Edwin Chen 1.1 735
kai 31.1 736 * Device Size: cm
Edwin Chen 1.1 737
kai 31.1 738 * Device Weight: g
Edwin Chen 1.1 739
kai 31.1 740 * Package Size / pcs : cm
Edwin Chen 1.1 741
kai 31.1 742 * Weight / pcs : g
Edwin Chen 1.1 743
Xiaoling 73.8 744
745
Xiaoling 70.14 746 = 10. Support =
747
748
kai 31.1 749 * 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.
Xiaoling 39.6 750
751 * 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.cc>>mailto:Support@dragino.cc]].