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Last modified by Bei Jinggeng on 2024/05/31 09:53
From version 65.9
edited by Xiaoling
on 2022/07/08 15:38
Change comment: There is no comment for this version
To version 103.1
edited by David Huang
on 2022/09/08 18:02
Change comment: There is no comment for this version

Summary

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Title
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1 -NSE01 - NB-IoT Soil Moisture & EC Sensor User Manual
1 +NDDS75 NB-IoT Distance Detect Sensor User Manual
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.David
Content
... ... @@ -1,16 +1,10 @@
1 1  (% style="text-align:center" %)
2 -[[image:image-20220606151504-2.jpeg||height="554" width="554"]]
2 +[[image:image-20220709085040-1.png||height="542" width="524"]]
3 3  
4 4  
5 5  
6 6  
7 7  
8 -
9 -
10 -
11 -
12 -
13 -
14 14  **Table of Contents:**
15 15  
16 16  {{toc/}}
... ... @@ -20,52 +20,60 @@
20 20  
21 21  
22 22  
23 -
24 24  = 1.  Introduction =
25 25  
26 -== 1.1 ​ What is LoRaWAN Soil Moisture & EC Sensor ==
27 27  
20 +== 1.1 ​ What is NDDS75 Distance Detection Sensor ==
21 +
28 28  (((
29 29  
30 30  
31 31  (((
32 -Dragino NSE01 is an (% style="color:blue" %)**NB-IOT soil moisture & EC sensor**(%%) for agricultural IoT. Used to measure the soil moisture of saline-alkali soil and loam. The soil sensor uses the FDR method to calculate soil moisture and compensates it with soil temperature and electrical conductivity. It has also been calibrated for mineral soil types at the factory.
26 +(((
27 +The Dragino NDDS75 is a (% style="color:blue" %)**NB-IoT Distance Detection Sensor**(%%) for Internet of Things solution. It is designed to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data.
33 33  )))
34 34  
35 35  (((
36 -It can detect (% style="color:blue" %)**Soil Moisture, Soil Temperature and Soil Conductivity**(%%), and upload its value to the server wirelessly.
31 +The NDDS75 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. It detects the distance between the measured object and the sensor, and uploads the value via wireless to IoT Server via NB-IoT Network.
37 37  )))
38 38  
39 39  (((
40 -The wireless technology used in NSE01 allows the device to send data at a low data rate and reach ultra-long distances, providing ultra-long-distance spread spectrum Communication.
35 +NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
41 41  )))
42 42  
43 43  (((
44 -NSE01 are powered by (% style="color:blue" %)**8500mAh Li-SOCI2**(%%) batteries, which can be used for up to 5 years.  
39 +NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement.
45 45  )))
46 46  
47 -
42 +(((
43 +NDDS75 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
48 48  )))
49 49  
50 -[[image:1654503236291-817.png]]
46 +(((
47 +To use NDDS75, user needs to check if there is NB-IoT coverage in local area and with the bands NDDS75 supports. If the local operate support it, user needs to get a NB-IoT SIM card from local operator and install NDDS75 to get NB-IoT network connection.
48 +)))
49 +)))
51 51  
51 +
52 +)))
52 52  
53 -[[image:1657245163077-232.png]]
54 +[[image:1657327959271-447.png]]
54 54  
55 55  
56 56  
57 57  == 1.2 ​ Features ==
58 58  
60 +
59 59  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
60 -* Monitor Soil Moisture
61 -* Monitor Soil Temperature
62 -* Monitor Soil Conductivity
62 +* Ultra low power consumption
63 +* Distance Detection by Ultrasonic technology
64 +* Flat object range 280mm - 7500mm
65 +* Accuracy: ±(1cm+S*0.3%) (S: Distance)
66 +* Cable Length: 25cm
63 63  * AT Commands to change parameters
64 64  * Uplink on periodically
65 65  * Downlink to change configure
66 66  * IP66 Waterproof Enclosure
67 -* Ultra-Low Power consumption
68 -* AT Commands to change parameters
69 69  * Micro SIM card slot for NB-IoT SIM
70 70  * 8500mAh Battery for long term use
71 71  
... ... @@ -87,91 +87,120 @@
87 87  * - B20 @H-FDD: 800MHz
88 88  * - B28 @H-FDD: 700MHz
89 89  
90 -Probe(% style="color:#037691" %)** Specification:**
92 +(% style="color:#037691" %)**Battery:**
91 91  
92 -Measure Volume: Base on the centra pin of the probe, a cylinder with 7cm diameter and 10cm height.
94 +* Li/SOCI2 un-chargeable battery
95 +* Capacity: 8500mAh
96 +* Self Discharge: <1% / Year @ 25°C
97 +* Max continuously current: 130mA
98 +* Max boost current: 2A, 1 second
93 93  
94 -[[image:image-20220708101224-1.png]]
100 +(% style="color:#037691" %)**Power Consumption**
95 95  
102 +* STOP Mode: 10uA @ 3.3v
103 +* Max transmit power: 350mA@3.3v
96 96  
97 97  
98 98  == ​1.4  Applications ==
99 99  
108 +
109 +* Smart Buildings & Home Automation
110 +* Logistics and Supply Chain Management
111 +* Smart Metering
100 100  * Smart Agriculture
113 +* Smart Cities
114 +* Smart Factory
101 101  
102 102  (% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
103 103  ​
104 104  
119 +
120 +
121 +
105 105  == 1.5  Pin Definitions ==
106 106  
107 107  
108 -[[image:1657246476176-652.png]]
125 +[[image:1657328609906-564.png]]
109 109  
110 110  
111 111  
112 -= 2.  Use NSE01 to communicate with IoT Server =
129 += 2.  Use NDDS75 to communicate with IoT Server =
113 113  
131 +
114 114  == 2.1  How it works ==
115 115  
116 116  
117 117  (((
118 -The NSE01 is equipped with a NB-IoT module, the pre-loaded firmware in NSE01 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NSE01.
136 +The NDDS75 is equipped with a NB-IoT module, the pre-loaded firmware in NDDS75 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NDDS75.
119 119  )))
120 120  
121 121  
122 122  (((
123 -The diagram below shows the working flow in default firmware of NSE01:
141 +The diagram below shows the working flow in default firmware of NDDS75:
124 124  )))
125 125  
126 -[[image:image-20220708101605-2.png]]
127 -
128 128  (((
129 129  
130 130  )))
131 131  
148 +[[image:1657328659945-416.png]]
132 132  
150 +(((
151 +
152 +)))
133 133  
134 -== 2.2 ​ Configure the NSE01 ==
135 135  
155 +== 2.2 ​ Configure the NDDS75 ==
136 136  
157 +
137 137  === 2.2.1 Test Requirement ===
138 138  
139 139  
140 -To use NSE01 in your city, make sure meet below requirements:
161 +(((
162 +To use NDDS75 in your city, make sure meet below requirements:
163 +)))
141 141  
142 142  * Your local operator has already distributed a NB-IoT Network there.
143 -* The local NB-IoT network used the band that NSE01 supports.
166 +* The local NB-IoT network used the band that NDDS75 supports.
144 144  * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
145 145  
146 146  (((
147 -Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NSE01 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server
170 +Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server.
148 148  )))
149 149  
150 150  
151 -[[image:1657249419225-449.png]]
174 +[[image:1657328756309-230.png]]
152 152  
153 153  
154 154  
155 155  === 2.2.2 Insert SIM card ===
156 156  
180 +
181 +(((
157 157  Insert the NB-IoT Card get from your provider.
183 +)))
158 158  
185 +(((
159 159  User need to take out the NB-IoT module and insert the SIM card like below:
187 +)))
160 160  
161 161  
162 -[[image:1657249468462-536.png]]
190 +[[image:1657328884227-504.png]]
163 163  
164 164  
165 165  
166 -=== 2.2.3 Connect USB – TTL to NSE01 to configure it ===
194 +=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
167 167  
196 +
168 168  (((
169 169  (((
170 -User need to configure NSE01 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NSE01 support AT Commands, user can use a USB to TTL adapter to connect to NSE01 and use AT Commands to configure it, as below.
199 +User need to configure NDDS75 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
171 171  )))
172 172  )))
173 173  
203 +[[image:image-20220709092052-2.png]]
174 174  
205 +
175 175  **Connection:**
176 176  
177 177   (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
... ... @@ -190,70 +190,86 @@
190 190  * Flow Control: (% style="color:green" %)**None**
191 191  
192 192  (((
193 -Make sure the switch is in FLASH position, then power on device by connecting the jumper on NSE01. NSE01 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
224 +Make sure the switch is in FLASH position, then power on device by connecting the jumper on NDDS75. NDDS75 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
194 194  )))
195 195  
196 -[[image:image-20220708110657-3.png]]
227 +[[image:1657329814315-101.png]]
197 197  
198 -(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[http:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
199 199  
230 +(((
231 +(% style="color:red" %)**Note: the valid AT Commands can be found at: **(%%)**[[https:~~/~~/www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0>>https://www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0]]**
232 +)))
200 200  
201 201  
235 +
202 202  === 2.2.4 Use CoAP protocol to uplink data ===
203 203  
204 -(% style="color:red" %)Note: if you don't have CoAP server, you can refer this link to set up one: (%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
205 205  
239 +(% style="color:red" %)**Note: if you don't have CoAP server, you can refer this link to set up one: **(%%)**[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]**
206 206  
241 +
242 +(((
207 207  **Use below commands:**
244 +)))
208 208  
209 -* (% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
210 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
211 -* (% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
246 +* (((
247 +(% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
248 +)))
249 +* (((
250 +(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
251 +)))
252 +* (((
253 +(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
212 212  
255 +
256 +
257 +)))
258 +
259 +(((
213 213  For parameter description, please refer to AT command set
261 +)))
214 214  
215 -[[image:1657249793983-486.png]]
263 +[[image:1657330452568-615.png]]
216 216  
217 217  
218 -After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NSE01 will start to uplink sensor values to CoAP server.
219 219  
220 -[[image:1657249831934-534.png]]
267 +(((
268 +After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NDDS75 will start to uplink sensor values to CoAP server.
269 +)))
221 221  
271 +[[image:1657330472797-498.png]]
222 222  
223 223  
274 +
224 224  === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
225 225  
226 -This feature is supported since firmware version v1.0.1
227 227  
228 -
229 -* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
278 +* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
230 230  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
231 -* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/If the server does not respond, this command is unnecessary
280 +* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
232 232  
233 -[[image:1657249864775-321.png]]
282 +[[image:1657330501006-241.png]]
234 234  
235 235  
236 -[[image:1657249930215-289.png]]
285 +[[image:1657330533775-472.png]]
237 237  
238 238  
239 239  
240 240  === 2.2.6 Use MQTT protocol to uplink data ===
241 241  
242 -This feature is supported since firmware version v110
243 243  
292 +* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
293 +* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
294 +* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
295 +* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
296 +* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
297 +* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
298 +* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
244 244  
245 -* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
246 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
247 -* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
248 -* (% style="color:blue" %)**AT+UNAME=UNAME                               **(%%)~/~/Set the username of MQTT
249 -* (% style="color:blue" %)**AT+PWD=PWD                                        **(%%)~/~/Set the password of MQTT
250 -* (% style="color:blue" %)**AT+PUBTOPIC=NSE01_PUB                    **(%%)~/~/Set the sending topic of MQTT
251 -* (% style="color:blue" %)**AT+SUBTOPIC=NSE01_SUB          **(%%) ~/~/Set the subscription topic of MQTT
252 -
253 253  [[image:1657249978444-674.png]]
254 254  
255 255  
256 -[[image:1657249990869-686.png]]
303 +[[image:1657330723006-866.png]]
257 257  
258 258  
259 259  (((
... ... @@ -264,178 +264,225 @@
264 264  
265 265  === 2.2.7 Use TCP protocol to uplink data ===
266 266  
267 -This feature is supported since firmware version v110
268 268  
269 -
270 270  * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
271 271  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
272 272  
273 -[[image:1657250217799-140.png]]
318 +[[image:image-20220709093918-1.png]]
274 274  
275 275  
276 -[[image:1657250255956-604.png]]
321 +[[image:image-20220709093918-2.png]]
277 277  
278 278  
279 279  
280 280  === 2.2.8 Change Update Interval ===
281 281  
327 +
282 282  User can use below command to change the (% style="color:green" %)**uplink interval**.
283 283  
284 284  * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
285 285  
286 286  (((
287 -(% style="color:red" %)**NOTE:**
288 -)))
333 +(% style="color:red" %)**NOTE: By default, the device will send an uplink message every 1 hour.**
289 289  
290 -(((
291 -(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
335 +
292 292  )))
293 293  
338 +**NOTE:When the firmware version is v1.3.2 and later firmware:**
294 294  
340 +**By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
295 295  
342 +
296 296  == 2.3  Uplink Payload ==
297 297  
298 -In this mode, uplink payload includes in total 18 bytes
299 299  
300 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
301 -|=(% style="width: 50px;" %)(((
346 +In this mode, uplink payload includes in total 14 bytes
347 +
348 +
349 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
350 +|=(% style="width: 60px;" %)(((
302 302  **Size(bytes)**
303 -)))|=(% style="width: 50px;" %)**6**|=(% style="width: 25px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**2**|=(% style="width: 40px;" %)**1**
304 -|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:108px" %)[[Soil Moisture>>||anchor="H2.4.5A0SoilMoisture"]]|(% style="width:133px" %)[[Soil Temperature>>||anchor="H2.4.6A0SoilTemperature"]]|(% style="width:159px" %)[[Soil Conductivity(EC)>>||anchor="H2.4.7A0SoilConductivity28EC29"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.8A0DigitalInterrupt"]]
352 +)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1**
353 +|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:120px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0Distance"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.6A0DigitalInterrupt"]]
305 305  
306 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSE01 uplink data.
355 +(((
356 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
357 +)))
307 307  
308 308  
309 -[[image:image-20220708111918-4.png]]
360 +[[image:1657331036973-987.png]]
310 310  
311 311  
363 +(((
312 312  The payload is ASCII string, representative same HEX:
365 +)))
313 313  
314 -0x72403155615900640c7817075e0a8c02f900 where:
367 +(((
368 +0x72403155615900640c6c19029200 where:
369 +)))
315 315  
316 -* Device ID: 0x 724031556159 = 724031556159
317 -* Version: 0x0064=100=1.0.0
371 +* (((
372 +Device ID: 0x724031556159 = 724031556159
373 +)))
374 +* (((
375 +Version: 0x0064=100=1.0.0
376 +)))
318 318  
319 -* BAT: 0x0c78 = 3192 mV = 3.192V
320 -* Singal: 0x17 = 23
321 -* Soil Moisture: 0x075e= 1886 = 18.86  %
322 -* Soil Temperature:0x0a8c =2700=27 °C
323 -* Soil Conductivity(EC) = 0x02f9 =761 uS /cm
324 -* Interrupt: 0x00 = 0
378 +* (((
379 +BAT: 0x0c6c = 3180 mV = 3.180V
380 +)))
381 +* (((
382 +Signal: 0x19 = 25
383 +)))
384 +* (((
385 +Distance: 0x0292= 658 mm
386 +)))
387 +* (((
388 +Interrupt: 0x00 = 0
325 325  
390 +
391 +)))
326 326  
327 -== 2.4  Payload Explanation and Sensor Interface ==
393 +**NOTE:When the firmware version is v1.3.2 and later firmware:**
328 328  
395 +In this mode, uplink payload includes 69 bytes in total by default.
329 329  
330 -=== 2.4.1  Device ID ===
397 +Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
331 331  
332 -By default, the Device ID equal to the last 6 bytes of IMEI.
399 +|**Size(bytes)**|**8**|2|2|1|1|1|2|4|2|4
400 +|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Distance|Timestamp|Distance|Timestamp.......
333 333  
334 -User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
402 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
335 335  
336 -**Example:**
404 +[[image:image-20220908175246-1.png]]
337 337  
338 -AT+DEUI=A84041F15612
406 +The payload is ASCII string, representative same HEX:
339 339  
340 -The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
408 +0x(% style="color:red" %)f867787050213317(% style="color:blue" %)0084(% style="color:green" %)0cf4(% style="color:red" %)1e(% style="color:blue" %)01(% style="color:green" %)00(% style="color:red" %)**//00396319bb32//**00396319baf0//**00396319ba3c**//00396319b988//**00396319b8d4**//00396319b820//**00396319b76c**//00396319b6b8//**00396319b604**//(%%) where:
341 341  
410 +* (% style="color:green" %)Device ID: f867787050213317 = f867787050213317
411 +* (% style="color:red" %)Version: 0x0084=132=1.3.2
412 +* (% style="color:green" %)BAT: 0x0cf4 = 3316 mV = 3.316V
413 +* (% style="color:blue" %)Singal: 0x1e = 30
414 +* (% style="color:red" %)Mod: 0x01 = 1
415 +* Interrupt: 0x00= 0
416 +* Distance: 0x0039= 57 = 57
417 +* Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
418 +* Distance,Time stamp : 00396319baf0
419 +* (% style="color:red" %) 8 sets of recorded data: Distance,Time stamp : //**00396319ba3c**//,.......
342 342  
421 +== 2.4  Payload Explanation and Sensor Interface ==
343 343  
344 -=== 2.4.2  Version Info ===
345 345  
346 -Specify the software version: 0x64=100, means firmware version 1.00.
424 +=== 2.4.1  Device ID ===
347 347  
348 -For example: 0x00 64 : this device is NSE01 with firmware version 1.0.0.
349 349  
427 +(((
428 +By default, the Device ID equal to the last 6 bytes of IMEI.
429 +)))
350 350  
431 +(((
432 +User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
351 351  
352 -=== 2.4.3  Battery Info ===
434 +
435 +)))
353 353  
354 354  (((
355 -Check the battery voltage for LSE01.
438 +**Example:**
356 356  )))
357 357  
358 358  (((
359 -Ex1: 0x0B45 = 2885mV
442 +AT+DEUI=A84041F15612
360 360  )))
361 361  
362 362  (((
363 -Ex2: 0x0B49 = 2889mV
446 +The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
364 364  )))
365 365  
366 366  
450 +**NOTE:When the firmware version is v1.3.2 and later firmware:**
367 367  
368 -=== 2.4.4  Signal Strength ===
452 +By default, the Device ID equal to the last 15 bits of IMEI.
369 369  
370 -NB-IoT Network signal Strength.
454 +User can use **AT+DEUI** to set Device ID
371 371  
372 -**Ex1: 0x1d = 29**
456 +**Example:**
373 373  
374 -(% style="color:blue" %)**0**(%%)  -113dBm or less
458 +AT+DEUI=868411056754138
375 375  
376 -(% style="color:blue" %)**1**(%%)  -111dBm
460 +=== 2.4.2  Version Info ===
377 377  
378 -(% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
379 379  
380 -(% style="color:blue" %)**31**  (%%) -51dBm or greater
463 +(((
464 +Specify the software version: 0x64=100, means firmware version 1.00.
465 +)))
381 381  
382 -(% style="color:blue" %)**99**   (%%) Not known or not detectable
467 +(((
468 +For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.
469 +)))
383 383  
384 384  
385 385  
386 -=== 2.4.5  Soil Moisture ===
473 +=== 2.4.3  Battery Info ===
387 387  
475 +
388 388  (((
389 -Get the moisture content of the soil. The value range of the register is 0-10000(Decimal), divide this value by 100 to get the percentage of moisture in the soil.
477 +Ex1: 0x0B45 = 2885mV
390 390  )))
391 391  
392 392  (((
393 -For example, if the data you get from the register is **__0x05 0xDC__**, the moisture content in the soil is
481 +Ex2: 0x0B49 = 2889mV
394 394  )))
395 395  
484 +
485 +
486 +=== 2.4.4  Signal Strength ===
487 +
488 +
396 396  (((
397 -
490 +NB-IoT Network signal Strength.
398 398  )))
399 399  
400 400  (((
401 -(% style="color:#4f81bd" %)**05DC(H) = 1500(D) /100 = 15%.**
494 +**Ex1: 0x1d = 29**
402 402  )))
403 403  
497 +(((
498 +(% style="color:blue" %)**0**(%%)  -113dBm or less
499 +)))
404 404  
405 -
406 -=== 2.4.6  Soil Temperature ===
407 -
408 408  (((
409 - Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is __**0x09 0xEC**__, the temperature content in the soil is
502 +(% style="color:blue" %)**1**(%%)  -111dBm
410 410  )))
411 411  
412 412  (((
413 -**Example**:
506 +(% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
414 414  )))
415 415  
416 416  (((
417 -If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/100 = 2.61 °C
510 +(% style="color:blue" %)**31**  (%%) -51dBm or greater
418 418  )))
419 419  
420 420  (((
421 -If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/100 = -1.29 °C
514 +(% style="color:blue" %)**99**   (%%) Not known or not detectable
422 422  )))
423 423  
424 424  
425 425  
426 -=== 2.4.7  Soil Conductivity (EC) ===
519 +=== 2.4.5  Distance ===
427 427  
428 -(((
429 -Obtain (% style="color:#4f81bd" %)**__soluble salt concentration__**(%%) in soil or (% style="color:#4f81bd" %)**__soluble ion concentration in liquid fertilizer__**(%%) or (% style="color:#4f81bd" %)**__planting medium__**(%%). The value range of the register is 0 - 20000(Decimal)( Can be greater than 20000).
430 -)))
431 431  
522 +Get the distance. Flat object range 280mm - 7500mm.
523 +
432 432  (((
433 -For example, if the data you get from the register is __**0x00 0xC8**__, the soil conductivity is 00C8(H) = 200(D) = 200 uS/cm.
525 +For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
434 434  )))
435 435  
436 436  (((
437 -Generally, the EC value of irrigation water is less than 800uS / cm.
529 +(((
530 +(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
438 438  )))
532 +)))
439 439  
440 440  (((
441 441  
... ... @@ -445,46 +445,75 @@
445 445  
446 446  )))
447 447  
448 -=== 2.4.8  Digital Interrupt ===
542 +=== 2.4.6  Digital Interrupt ===
449 449  
450 -Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NSE01 will send a packet to the server.
451 451  
545 +(((
546 +Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server.
547 +)))
548 +
549 +(((
452 452  The command is:
551 +)))
453 453  
553 +(((
454 454  (% style="color:blue" %)**AT+INTMOD=3 **(%%) ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
555 +)))
455 455  
456 456  
558 +(((
457 457  The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
560 +)))
458 458  
459 459  
563 +(((
460 460  Example:
565 +)))
461 461  
567 +(((
462 462  0x(00): Normal uplink packet.
569 +)))
463 463  
571 +(((
464 464  0x(01): Interrupt Uplink Packet.
573 +)))
465 465  
466 466  
467 467  
468 -=== 2.4.9  ​+5V Output ===
577 +=== 2.4.7  ​+5V Output ===
469 469  
470 -NSE01 will enable +5V output before all sampling and disable the +5v after all sampling. 
471 471  
580 +(((
581 +NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
582 +)))
472 472  
584 +
585 +(((
473 473  The 5V output time can be controlled by AT Command.
474 474  
588 +
589 +)))
590 +
591 +(((
475 475  (% style="color:blue" %)**AT+5VT=1000**
476 476  
594 +
595 +)))
596 +
597 +(((
477 477  Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
599 +)))
478 478  
479 479  
480 480  
481 481  == 2.5  Downlink Payload ==
482 482  
483 -By default, NSE01 prints the downlink payload to console port.
484 484  
485 -[[image:image-20220708133731-5.png]]
606 +By default, NDDS75 prints the downlink payload to console port.
486 486  
608 +[[image:image-20220709100028-1.png]]
487 487  
610 +
488 488  (((
489 489  (% style="color:blue" %)**Examples:**
490 490  )))
... ... @@ -518,83 +518,103 @@
518 518  )))
519 519  
520 520  (((
521 -If payload = 0x04FF, it will reset the NSE01
644 +If payload = 0x04FF, it will reset the NDDS75
522 522  )))
523 523  
524 524  
525 525  * (% style="color:blue" %)**INTMOD**
526 526  
650 +(((
527 527  Downlink Payload: 06000003, Set AT+INTMOD=3
652 +)))
528 528  
529 529  
655 +== 2.6 Distance alarm function ==
530 530  
531 -== 2.6  ​LED Indicator ==
657 +➢ AT Command:
532 532  
533 -(((
534 -The NSE01 has an internal LED which is to show the status of different state.
659 +AT+ LDDSALARM=min,max
535 535  
661 +² When min=0, and max≠0, Alarm higher than max
536 536  
537 -* When power on, NSE01 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
538 -* Then the LED will be on for 1 second means device is boot normally.
539 -* After NSE01 join NB-IoT network. The LED will be ON for 3 seconds.
540 -* For each uplink probe, LED will be on for 500ms.
541 -)))
663 +² When min≠0, and max=0, Alarm lower than min
542 542  
665 +² When min≠0 and max≠0, Alarm higher than max or lower than min
543 543  
667 +Example:
544 544  
669 +AT+ LDDSALARM=260,2000 ~/~/ Alarm when distance lower than 260.
545 545  
546 -== 2.7  Installation in Soil ==
547 547  
548 -__**Measurement the soil surface**__
672 +== 2.7 Set the number of data to be uploaded and the recording time ==
549 549  
550 -Choose the proper measuring position. Avoid the probe to touch rocks or hard things. Split the surface soil according to the measured deep. Keep the measured as original density. Vertical insert the probe into the soil to be measured. Make sure not shake when inserting. [[https:~~/~~/img.alicdn.com/imgextra/i3/2005165265/O1CN010rj9Oh1olPsQxrdUK_!!2005165265.jpg>>url:https://img.alicdn.com/imgextra/i3/2005165265/O1CN010rj9Oh1olPsQxrdUK_!!2005165265.jpg]]
674 +➢ AT Command:
551 551  
552 -[[image:1657259653666-883.png]] ​
676 +AT+TR=900  ~/~/The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
553 553  
678 +AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
554 554  
555 -(((
556 -
680 +== 2.8 Read or Clear cached data ==
557 557  
558 -(((
559 -Dig a hole with diameter > 20CM.
560 -)))
682 +➢ AT Command:
561 561  
562 -(((
563 -Horizontal insert the probe to the soil and fill the hole for long term measurement.
564 -)))
565 -)))
684 +AT+CDP ~/~/ Read cached data
566 566  
567 -[[image:1654506665940-119.png]]
686 +[[image:image-20220908175333-2.png]]
568 568  
688 +AT+CDP=0 ~/~/ Clear cached data
689 +
690 +== 2.9  ​LED Indicator ==
691 +
692 +
693 +The NDDS75 has an internal LED which is to show the status of different state.
694 +
695 +
696 +* When power on, NDDS75 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
697 +* Then the LED will be on for 1 second means device is boot normally.
698 +* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
699 +* For each uplink probe, LED will be on for 500ms.
700 +
569 569  (((
570 570  
571 571  )))
572 572  
573 573  
574 -== 2.8  ​Firmware Change Log ==
575 575  
707 +== 2.10  ​Firmware Change Log ==
576 576  
577 -Download URL & Firmware Change log
578 578  
579 -[[www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/Firmware/]]
710 +(((
711 +Download URL & Firmware Change log:  [[https:~~/~~/www.dropbox.com/sh/3hb94r49iszmstx/AADvSJcXxahEUfxqKWVnZx-La?dl=0>>https://www.dropbox.com/sh/3hb94r49iszmstx/AADvSJcXxahEUfxqKWVnZx-La?dl=0]]
712 +)))
580 580  
714 +(((
715 +
716 +)))
581 581  
582 -Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
718 +(((
719 +Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
720 +)))
583 583  
584 584  
585 585  
586 -== 2.9  ​Battery Analysis ==
724 +== 2.11  ​Battery Analysis ==
587 587  
588 -=== 2.9.1  ​Battery Type ===
589 589  
727 +=== 2.11.1  ​Battery Type ===
590 590  
591 -The NSE01 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
592 592  
730 +(((
731 +The NDDS75 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
732 +)))
593 593  
734 +(((
594 594  The battery is designed to last for several years depends on the actually use environment and update interval. 
736 +)))
595 595  
596 -
738 +(((
597 597  The battery related documents as below:
740 +)))
598 598  
599 599  * [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
600 600  * [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
... ... @@ -601,13 +601,14 @@
601 601  * [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
602 602  
603 603  (((
604 -[[image:image-20220708140453-6.png]]
747 +[[image:image-20220709101450-2.png]]
605 605  )))
606 606  
607 607  
608 608  
609 -=== 2.9.2  Power consumption Analyze ===
752 +=== 2.11.2  Power consumption Analyze ===
610 610  
754 +
611 611  (((
612 612  Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
613 613  )))
... ... @@ -640,12 +640,13 @@
640 640  And the Life expectation in difference case will be shown on the right.
641 641  )))
642 642  
643 -[[image:image-20220708141352-7.jpeg]]
787 +[[image:image-20220709110451-3.png]]
644 644  
645 645  
646 646  
647 -=== 2.9.3  ​Battery Note ===
791 +=== 2.11.3  ​Battery Note ===
648 648  
793 +
649 649  (((
650 650  The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
651 651  )))
... ... @@ -652,10 +652,11 @@
652 652  
653 653  
654 654  
655 -=== 2.9.4  Replace the battery ===
800 +=== 2.11.4  Replace the battery ===
656 656  
802 +
657 657  (((
658 -The default battery pack of NSE01 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
804 +The default battery pack of NDDS75 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
659 659  )))
660 660  
661 661  
... ... @@ -662,6 +662,7 @@
662 662  
663 663  = 3. ​ Access NB-IoT Module =
664 664  
811 +
665 665  (((
666 666  Users can directly access the AT command set of the NB-IoT module.
667 667  )))
... ... @@ -668,19 +668,23 @@
668 668  
669 669  (((
670 670  The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 
818 +
819 +
671 671  )))
672 672  
673 -[[image:1657261278785-153.png]]
822 +[[image:1657333200519-600.png]]
674 674  
675 675  
676 676  
677 677  = 4.  Using the AT Commands =
678 678  
828 +
679 679  == 4.1  Access AT Commands ==
680 680  
681 -See this link for detail: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
682 682  
832 +See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0>>https://www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0]]
683 683  
834 +
684 684  AT+<CMD>?  : Help on <CMD>
685 685  
686 686  AT+<CMD>         : Run <CMD>
... ... @@ -720,7 +720,23 @@
720 720  
721 721  AT+SERVADDR  : Server Address
722 722  
874 +AT+TR      : Get or Set record time"
723 723  
876 +AT+APN     : Get or set the APN
877 +
878 +AT+FBAND   : Get or Set whether to automatically modify the frequency band
879 +
880 +AT+DNSCFG  : Get or Set DNS Server
881 +
882 +AT+GETSENSORVALUE   : Returns the current sensor measurement
883 +
884 +AT+NOUD      : Get or Set the number of data to be uploaded
885 +
886 +AT+CDP     : Read or Clear cached data
887 +
888 +AT+LDDSALARM : Get or Set alarm of distance
889 +
890 +
724 724  (% style="color:#037691" %)**COAP Management**      
725 725  
726 726  AT+URI            : Resource parameters
... ... @@ -754,6 +754,7 @@
754 754  
755 755  = ​5.  FAQ =
756 756  
924 +
757 757  == 5.1 ​ How to Upgrade Firmware ==
758 758  
759 759  
... ... @@ -766,7 +766,7 @@
766 766  )))
767 767  
768 768  (((
769 -(% style="color:red" %)Notice, NSE01 and LSE01 share the same mother board. They use the same connection and method to update.
937 +(% style="color:red" %)**Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.**
770 770  )))
771 771  
772 772  
... ... @@ -773,28 +773,34 @@
773 773  
774 774  = 6.  Trouble Shooting =
775 775  
944 +
776 776  == 6.1  ​Connection problem when uploading firmware ==
777 777  
778 778  
948 +(((
949 +**Please see: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]]
950 +)))
951 +
779 779  (% class="wikigeneratedid" %)
780 780  (((
781 -(% style="font-size:14px" %)**Please see: **(%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting||style="background-color: rgb(255, 255, 255); font-size: 14px;"]]
954 +
782 782  )))
783 783  
784 784  
785 -
786 786  == 6.2  AT Command input doesn't work ==
787 787  
960 +
788 788  (((
789 789  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
963 +
964 +
790 790  )))
791 791  
792 792  
793 -
794 794  = 7. ​ Order Info =
795 795  
796 796  
797 -Part Number**:** (% style="color:#4f81bd" %)**NSE01**
971 +Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
798 798  
799 799  
800 800  (% class="wikigeneratedid" %)
... ... @@ -809,8 +809,7 @@
809 809  
810 810  (% style="color:#037691" %)**Package Includes**:
811 811  
812 -
813 -* NSE01 NB-IoT Soil Moisture & EC Sensor x 1
986 +* NDDS75 NB-IoT Distance Detect Sensor Node x 1
814 814  * External antenna x 1
815 815  )))
816 816  
... ... @@ -817,11 +817,13 @@
817 817  (((
818 818  
819 819  
993 +
820 820  (% style="color:#037691" %)**Dimension and weight**:
821 821  
822 -
823 -* Size: 195 x 125 x 55 mm
824 -* Weight:   420g
996 +* Device Size: 13.0 x 5 x 4.5 cm
997 +* Device Weight: 150g
998 +* Package Size / pcs : 15 x 12x 5.5 cm
999 +* Weight / pcs : 220g
825 825  )))
826 826  
827 827  (((
... ... @@ -833,5 +833,6 @@
833 833  
834 834  = 9.  Support =
835 835  
1011 +
836 836  * 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.
837 837  * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
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