Last modified by Mengting Qiu on 2025/03/08 11:35
<
From version < 10.1 >
edited by David Huang
on 2024/06/07 16:21
To version < 21.1 >
edited by Mengting Qiu
on 2024/08/19 10:54
>
Change comment: Uploaded new attachment "image-20240819105418-8.png", version {1}

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71 71  
72 72  See bands used for different provider:** [[NB-IoT Deployment , Bands, Operator list>>http://wiki.dragino.com/xwiki/bin/view/Main/NB-IoT%20Deployment%20%2C%20Bands%2C%20Operator%20list/]]**
73 73  
74 -**1.Configure Frequency Band**
74 +=== **1.Configure Frequency Band** ===
75 75  
76 76  AT+QCFG="band"[,<GSM_bandval>,<eMTC_bandval>,<NB-IoT_bandval>[,<effect>]]
77 77  
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141 141  AT+QCFG="band",0xF,0x100002000000000f0e189f,0x10004200000000090e189f,1
142 142  
143 143  
144 -**2.Configure search network sequence**
144 +=== **2.Configure search network sequence** ===
145 145  
146 146  AT+QCFG="nwscanseq",<scanseq>,1
147 147  
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154 154  
155 155  AT+QCFG="nwscanseq",02,1  ~/~/Priority search for eMTC
156 156  
157 -**3.Configure Network Category to be Searched for under LTE RAT**
157 +=== **3.Configure Network Category to be Searched for under LTE RAT** ===
158 158  
159 159  AT+QCFG="iotopmode",mode,1
160 160  
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162 162  1 NB-IoT 
163 163  2 eMTC and NB-IoT
164 164  
165 +=== **4.AT command to set frequency band and network category** ===
165 165  
167 +AT+QBAND=0x100002000000000f0e189f,0x10004200000000090e189f  ~/~/<eMTC_bandval>,<NB-IoT_bandval>
168 +
169 +AT+IOTMOD=0  ~/~/ 0 eMTC  1 NB-IoT  2 eMTC and NB-IoT
170 +
171 +**Example :**
172 +
173 +Taking the use of 1nce cards in **the United States** as an example.
174 +
175 +AT+APN=iot.1nce.net  ~/~/set APN
176 +
177 +AT+QBAND=0x100180A,0  ~/~/ eMTC ：Set frequency band B2,B4,B12,B13,B25  NB-IoT：No change
178 +
179 +AT+IOTMOD=0  ~/~/ Set  eMTC Network
180 +
181 +**Setting the above commands in the United States will greatly reduce the network search time of the NB module.**
182 +
183 +
166 166  = 3. Configure to connect to different servers =
167 167  
168 168  == 3.1 General UDP Connection ==
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185 185  
186 186  * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5601**  (%%) ~/~/ Set UDP server address and port
187 187  
188 -[[image:image-20230802112413-2.png]]
206 +[[image:image-20240819102802-1.png]]
189 189  
190 190  ==== 3.1.2.2 Uplink Example ====
191 191  
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206 206  * (% style="color:#037691" %)**AT+URI1=11,"I"**  (%%) ~/~/  Configure CoAP Message Options
207 207  * (% style="color:#037691" %)**AT+URI2=11,"aaa05e26-4d6d-f01b-660e-1d8de4a3bfe1"**    (%%) ~/~/ Configure CoAP Message Options
208 208  
227 +[[image:image-20240819103212-2.png]]
228 +
209 209  === 3.2.1 Uplink Example ===
210 210  
231 +[[image:image-20240819103909-4.png||height="453" width="955"]]
211 211  
212 212  
213 213  == 3.2 General MQTT Connection ==
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232 232  
233 233  * (% style="color:#037691" %)**AT+SUBTOPIC=NSE01_SUB**  (%%) ~/~/ Set the subscription topic of MQTT
234 234  
235 -[[image:image-20230802112413-4.png]]
256 +[[image:image-20240819105003-7.png||height="613" width="458"]]
236 236  
237 -[[image:image-20230802112413-5.png||height="530" width="987"]]
238 238  
259 +[[image:image-20240819104942-6.png||height="702" width="974"]]
260 +
239 239  (% style="color:red" %)**Notice: MQTT protocol has a much higher power consumption compare with UDP/CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.**
240 240  
241 241  == 3.3 [[ThingSpeak>>url:https://thingspeak.com/]] (via MQTT) ==
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720 720  
721 721  = 5. GPS positioning function =
722 722  
723 -(% class="wikigeneratedid" id="H5.1WhatistheusageofMultiSamplingandOneUplink3F" %)
724 -~1. Turn on GPS function
745 +=== 1. Turn on GPS function ===
725 725  
726 726  (% class="wikigeneratedid" %)
727 727  AT+GPS=1 or 0  ~/~/GPS function on or off
728 728  
729 729  
730 -2.Extend the time to turn on GNSS
751 +=== 2.Extend the time to turn on GNSS ===
731 731  
732 732  AT+GNSST=30  ~/~/GPS search for positioning information for 30 seconds
733 733  
734 734  
735 -3.Get or set GPS positioning interval in units of hour
756 +=== 3.Get or set GPS positioning interval in units of hour ===
736 736  
737 737  AT+GTDC=24  ~/~/The device will activate GPS positioning every 24 hours
738 738  
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