<
From version < 119.1 >
edited by Xiaoling
on 2022/07/12 17:49
To version < 119.2 >
edited by Xiaoling
on 2022/08/22 14:47
>
Change comment: There is no comment for this version

Summary

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Content
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17 17  
18 18  = 1.  Introduction =
19 19  
20 +
20 20  == 1.1 ​ What is N95S31B NB-IoT Sensor Node ==
21 21  
22 22  (((
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55 55  
56 56  == 1.2 ​ Features ==
57 57  
59 +
58 58  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
59 59  * Monitor Temperature & Humidity via SHT31
60 60  * AT Commands to change parameters
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68 68  
69 69  
70 70  
73 +
71 71  == 1.3  Specification ==
72 72  
73 73  
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76 76  * Supply Voltage: 2.1v ~~ 3.6v
77 77  * Operating Temperature: -40 ~~ 85°C
78 78  
82 +
83 +
79 79  (% style="color:#037691" %)**NB-IoT Spec:**
80 80  
81 81  * - B1 @H-FDD: 2100MHz
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85 85  * - B20 @H-FDD: 800MHz
86 86  * - B28 @H-FDD: 700MHz
87 87  
93 +
94 +
88 88  (% style="color:#037691" %)**Battery:**
89 89  
90 90  * Li/SOCI2 un-chargeable battery
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95 95  
96 96  
97 97  
105 +
98 98  == ​1.4  Applications ==
99 99  
108 +
100 100  * Smart Buildings & Home Automation
101 101  * Logistics and Supply Chain Management
102 102  * Smart Metering
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108 108  ​
109 109  
110 110  
120 +
111 111  == 1.5  Pin Definitions & Switch ==
112 112  
123 +
113 113  N95S31B use the mother board from NBSN95 which as below.
114 114  
126 +
115 115  [[image:image-20220709144723-1.png]]
116 116  
117 117  
130 +
118 118  === 1.5.1 Jumper JP2 ===
119 119  
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120 120  Power on Device when put this jumper.
121 121  
122 122  
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123 123  
124 124  === 1.5.2 BOOT MODE / SW1 ===
125 125  
140 +
126 126  (((
127 127  1) ISP: upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
128 128  )))
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135 135  
136 136  === 1.5.3 Reset Button ===
137 137  
153 +
138 138  Press to reboot the device.
139 139  
140 140  
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141 141  
142 142  === 1.5.4 LED ===
143 143  
160 +
144 144  It will flash:
145 145  
146 146  1. When boot the device in flash mode
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148 148  
149 149  
150 150  
168 +
151 151  = 2.  Use N95S31B to communicate with IoT Server =
152 152  
171 +
153 153  == 2.1  How it works ==
154 154  
155 155  
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182 182  [[image:image-20220709150546-2.png]]
183 183  
184 184  
204 +
185 185  === 2.2.1 Test Requirement ===
186 186  
187 187  
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234 234  
235 235  === 2.2.3  Insert SIM card ===
236 236  
257 +
237 237  (((
238 238  Insert the NB-IoT Card get from your provider.
239 239  )))
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249 249  
250 250  === 2.2.4  Connect USB – TTL to N95S31B to configure it ===
251 251  
273 +
252 252  (((
253 253  (((
254 254  User need to configure N95S31B via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. N95S31B support AT Commands, user can use a USB to TTL adapter to connect to N95S31B and use AT Commands to configure it, as below.
277 +
278 +
255 255  )))
256 256  )))
257 257  
258 258  [[image:1657351312545-300.png]]
259 259  
284 +
260 260  **Connection:**
261 261  
262 262   (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
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280 280  
281 281  [[image:1657329814315-101.png]]
282 282  
308 +
283 283  (((
284 -(% style="color:red" %)Note: the valid AT Commands can be found at:  (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]]
310 +(% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)**[[https:~~/~~/www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i~~-~~-AyZcQkoua?dl=0>>https://www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i--AyZcQkoua?dl=0]]**
285 285  )))
286 286  
287 287  
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288 288  
289 289  === 2.2.5  Use CoAP protocol to uplink data ===
290 290  
291 -(% 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/]]
292 292  
318 +(% 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/]]**
293 293  
320 +
294 294  (((
295 295  **Use below commands:**
296 296  )))
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