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Version 298.9 by Xiaoling on 2023/04/28 09:03
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2 [[image:image-20220623141920-10.png]]
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11 **Table of Contents:**
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13 {{toc/}}
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16 (((
17 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
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26
27
28 = 1.  Introduction =
29
30 == 1.1 ​ What is LSN50V2-D2x LoRaWAN Temperature Sensor ==
31
32
33 (((
34 The Dragino LSN50v2-D2x is a (% style="color:#4472c4" %)**LoRaWAN Temperature Sensor**(%%) for Internet of Things solution. It can be used to measure the (% style="color:#4472c4" %)**temperature of air, liquid or object**(%%), and then upload to IoT server via LoRaWAN wireless protocol.
35 )))
36
37 (((
38 The temperature sensor used in LSN50v2-D2x can (% style="color:#4472c4" %)**measure -55°C ~~ 125°C with accuracy ±0.5°C (max ±2.0 °C)**.
39 )))
40
41 (((
42 LSN50v2-D2x supports (% style="color:#4472c4" %)**temperature alarm feature,**(%%) user can set temperature alarm for instant notice.
43 )))
44
45 (((
46 LSN50v2-D2x has max 3 probes which measure maximum 3 temperature points.
47 )))
48
49 (((
50 LSN50v2-D2x is powered by (% style="color:#4472c4" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 10 years. (Actually Battery life depends on the use environment, update period. Please check related Power Analyze report).
51 )))
52
53 (((
54 Each LSN50v2-D2x is pre-load with a set of unique keys for LoRaWAN registration, register these keys to local LoRaWAN server and it will auto connect after power on.
55 )))
56
57
58 [[image:1655889313568-879.png]]
59
60
61 == 1.2  Specifications ==
62
63
64 (% style="color:#037691" %)**Common DC Characteristics:**
65
66 * Supply Voltage: built in 8500mAh Li-SOCI2 battery
67 * Operating Temperature: -40 ~~ 85°C
68
69 (% style="color:#037691" %)**Temperature Sensor:**
70
71 * Range: -55 to + 125°C
72 * Accuracy ±0.5°C (max ±2.0 °C).
73
74 (% style="color:#037691" %)**LoRa Spec:**
75
76 * Frequency Range,
77 ** Band 1 (HF): 862 ~~ 1020 Mhz
78 * 168 dB maximum link budget.
79 * High sensitivity: down to -148 dBm.
80 * Bullet-proof front end: IIP3 = -12.5 dBm.
81 * Excellent blocking immunity.
82 * Built-in bit synchronizer for clock recovery.
83 * Preamble detection.
84 * 127 dB Dynamic Range RSSI.
85 * Automatic RF Sense and CAD with ultra-fast AFC.
86 * LoRaWAN 1.0.3 Specification
87
88 (% style="color:#037691" %)**Power Consumption**
89
90 * Sleeping Mode: 20uA
91 * LoRaWAN Transmit Mode: 125mA @ 20dBm 44mA @ 14dBm
92
93 (% style="display:none" %)
94
95
96 == ​1.3  Features ==
97
98
99 * LoRaWAN v1.0.3 Class A
100 * Ultra-low power consumption
101 * 1 ~~ 3 External Temperature Probes
102 * Measure range -55°C ~~ 125°C
103 * Temperature alarm
104 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
105 * AT Commands to change parameters
106 * Uplink on periodically or Interrupt
107 * Downlink to change configure
108 * 8500mAh Battery for long term use
109
110 (% style="display:none" %)
111
112
113 == 1.4 ​ Applications ==
114
115
116 * Wireless Alarm and Security Systems
117 * Home and Building Automation
118 * Automated Meter Reading
119 * Industrial Monitoring and Control
120 * Long range Irrigation Systems,etc.
121
122 (% style="display:none" %)
123
124
125 == 1.5  Hardware Variant ==
126
127
128 (% border="1" cellspacing="5" style="background-color:#f7faff; width:500px" %)
129 |=(% style="width: 108px;background-color:#D9E2F3;color:#0070C0" %)Model|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Photo|=(% style="width: 234px;background-color:#D9E2F3;color:#0070C0" %)Probe Info
130 |(% style="width:108px" %)LSN50v2 D20|(% style="width:138px" %)[[image:1655890296240-127.png]]|(% style="width:203px" %)(((
131 1 x DS28B20 Probe
132
133 Cable Length : 2 meters
134
135 sensor cable is made by Silica Gel for higher temperature tolerance.
136 )))
137 |(% style="width:108px" %)LSN50v2 D22|(% style="width:138px" %)[[image:1655890630424-253.png]]|(% style="width:203px" %)(((
138 2 x DS28B20 Probes
139
140 Cable lengths total 1.5meters per probe
141
142 Cable Drawing: [[See This Link>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSN50v2-D20/Cable_Drawing/&file=CAB0-35IC-K21G-210811.pdf]]
143 )))
144 |(% style="width:108px" %)(((
145 LSN50v2 D23
146 )))|(% style="width:138px" %)[[image:1655890438492-321.png]]|(% style="width:203px" %)(((
147 3 x DS28B20 Probes
148
149 Cable lengths total 1.5meters per probe
150
151 Cable Drawing: [[See This Link>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSN50v2-D20/Cable_Drawing/&file=CAB0-35IC-K31G-210811.pdf]]
152 )))
153
154 (% style="display:none" %)
155
156
157 == 1.6  Pin Definitions and Switch ==
158
159
160 **Base on LSN50v2 v2.3.a**
161
162 (% class="wikigeneratedid" %)
163 [[image:1655890786311-614.png||height="392" width="762"]]
164
165
166 === 1.6.1 Pin Definition ===
167
168
169 The device is pre-configured to connect to temperature sensor. The other pins are not used. If user want to know more about other pins, please refer the user manual of LSn50v2 at: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/]]
170
171
172 === 1.6.2 Jumper JP2 ===
173
174
175 Power on Device when put this jumper.
176
177
178 === 1.6.3 BOOT MODE / SW1 ===
179
180
181 ~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.
182
183 2. Flash:  work mode, device starts to work and send out console output for further debug
184
185
186 === 1.6.4 Reset Button ===
187
188
189 Press to reboot the device.
190
191
192 === 1.6.5 LED ===
193
194
195 It will flash:
196
197 1.  When boot the device in flash mode
198
199 2.  Send an uplink packet
200
201
202 == 1.7  Hardware Change log ==
203
204
205 LSN50v2-D20 v1.0:  Release.
206
207
208 = 2.  How to use LSN50v2-D2x? =
209
210 == 2.1  How it works ==
211
212
213 (((
214 (((
215 The LSN50v2-D2x is working as LoRaWAN OTAA Class A end node. Each LSN50v2-D2x is shipped with a worldwide unique set of OTAA and ABP keys. User needs to input the OTAA or ABP keys in the LoRaWAN network server to register. Open the enclosure and power on the LSN50v2-D2x, it will join the LoRaWAN network and start to transmit data. The default period for each uplink is 20 minutes.
216 )))
217 )))
218
219
220 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
221
222
223 (((
224 Here is an example for how to join the [[TTN LoRaWAN >>url:http://www.thethingsnetwork.org/]]Server. Below is the network structure, in this demo we use [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] as LoRaWAN gateway.
225
226 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:1655891470063-521.png]](% title="Click and drag to resize" %)​[[image:1655952600869-544.png]]
227 )))
228
229 (% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
230
231 (((
232 The DLOS8 is already set to connect to [[TTN >>url:https://www.thethingsnetwork.org/]]. What the rest we need to is register the LSN50V2-D20 to TTN:
233
234
235 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSN50V2-D20.
236
237 Each LSN50V2-D20 is shipped with a sticker with the default device EUI as below:
238 )))
239
240
241 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:image-20230426083947-2.png]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
242
243
244 (((
245 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
246
247 **Register the device：**
248 )))
249
250 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​(% aria-label="1654935135620-998.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654935135620-998.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](%%)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​​
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252 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​
253
254
255 **Add APP EUI and DEV EUI：**
256
257
258 (% aria-label="image-20220611161308-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220611161308-4.png||data-widget="image" height="551" width="753"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
259
260
261
262 **Add APP EUI in the application：**
263
264
265 (% aria-label="image-20220611161308-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220611161308-5.png||data-widget="image" height="601" width="742"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
266
267
268 **Add APP KEY**
269
270 (% aria-label="image-20220611161308-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220611161308-6.png||data-widget="image" height="485" width="744"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
271
272 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​
273
274 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
275
276 (% style="color:blue" %)**Step 2**(%%): Power on LSN50v2-D20
277
278
279 [[image:1655891678689-137.png]]
280
281 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(%%)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
282
283 (((
284 (% style="color:blue" %)**Step 3**(%%)**:**  LSN50V2-D20 will auto join to TTN network via the LoRaWAN coverage by DLOS8. After join success, LSN50V2-D20 will start to uplink temperature value to server.
285 )))
286
287 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​(% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](%%)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​​
288
289 == 2.3  ​Uplink Payload ==
290
291 === 2.3.1  Payload Analyze ===
292
293
294 (((
295 Normal Upload Payload:
296 )))
297
298 (((
299 LSN50v2-D2x use the same payload as LSn50v2 mod1, as below.
300 )))
301
302
303 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
304 |=(% style="width: 74.5px;background-color:#D9E2F3" %)(((
305 **Size(bytes)**
306 )))|=(% style="width: 60px;background-color:#D9E2F3" %)2|=(% style="width: 120px;background-color:#D9E2F3" %)2|=(% style="width: 60px;background-color:#D9E2F3" %)2|=(% style="width: 65px;background-color:#D9E2F3" %)1|=(% style="width: 65px;background-color:#D9E2F3" %)**2**|=(% style="width: 65px;background-color:#D9E2F3" %)2
307 |(% style="width:65px" %)**Value**|(((
308 [[Battery>>||anchor="HBattery:"]]
309 )))|(% style="width:91px" %)(((
310 [[Temp_ Red or Temp _White>>||anchor="HTemperatureREDorTemperatureWhite:"]]
311 )))|(% style="width:61px" %)(((
312 ignore
313 )))|(% style="width:91px" %)(((
314 [[Alarm Flag>>||anchor="HAlarmFlag26MOD:"]]
315 )))|(% style="width:99px" %)(((
316 [[Temp_White>>||anchor="HTemperatureWhite:"]]
317 )))|(% style="width:97px" %)(((
318 [[Temp_Black>>||anchor="HTemperatureBlack:"]]
319 )))
320
321 [[image:image-20220622180351-1.png||height="589" width="1096"]]
322
323
324 ==== (% style="color:#4472c4" %)**Battery:**(%%) ====
325
326
327 Check the battery voltage.
328
329 Ex1: 0x0B45 = 2885mV
330
331 Ex2: 0x0B49 = 2889mV
332
333
334
335 ==== (% style="color:#4472c4" %)**Temperature RED or Temperature White :**(%%) ====
336
337
338 **This point to the Red probe in LSN50 v2-D20 or the probe of LSN50v2- D22/D23 White**
339
340 [[image:image-20220916152530-2.png]]
341
342
343 **Example**:
344
345 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
346
347 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
348
349 （FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
350
351
352
353 ==== (% style="color:#4472c4" %)**Temperature White:**(%%) ====
354
355
356 **This point to the Red probe in LSN50 v2-D22/D23**
357
358
359 **Example**:
360
361 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
362
363 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
364
365 （FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
366
367
368
369 ==== (% style="color:#4472c4" %)**Temperature Black:**(%%) ====
370
371
372 **This point to the BLACK probe in LSN50 v2-D23**
373
374
375 **Example**:
376
377 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
378
379 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
380
381 （FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
382
383
384
385 ==== (% style="color:#4472c4" %)**Alarm Flag& MOD:**(%%) ====
386
387
388 **Example:**
389
390 If payload & 0x01 = 0x01  **~-~->** This is an Alarm Message
391
392 If payload & 0x01 = 0x00  **~-~->** This is a normal uplink message, no alarm
393
394 If payload >> 2 = 0x00  **~-~->**  means MOD=1, This is a sampling uplink message
395
396 If payload >> 2 = 0x31  **~-~->**  means MOD=31, this message is a reply message for polling, this message contains the alarm settings. see [[this link>>||anchor="HPolltheAlarmsettings:"]] for detail.
397
398
399
400 ==== (% style="color:#4472c4" %)**Decode corresponding probe color：**(%%) ====
401
402
403 **D20:**
404
405 Red <~-~-> C1
406
407 **D22:**
408
409 White <~-~-> C1 Red <~-~-> C2
410
411 **D23:**
412
413 White <~-~->C1 Red <~-~-> C2 Black <~-~-> C3
414
415
416 == 2.3.2  Payload Decoder file ==
417
418
419 (((
420 In TTN, use can add a custom payload so it shows friendly. 
421 )))
422
423 (((
424 In the page **Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder** to add the decoder from:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
425 )))
426
427
428 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​
429
430 == 2.4  Temperature Alarm Feature ==
431
432
433 LSN50V2-D20 work flow with Alarm feature.
434
435
436 [[image:image-20220623090437-1.png||height="747" width="1067"]]
437
438
439 (((
440 User can use (% style="color:#4472c4" %)**AT+18ALARM **(%%)command to set the alarm low limit or high limit. Device will check the temperature every minute, if the temperature lower than low limit or greater than high limit. LSN50v2-D20 will send an (% style="color:#4472c4" %)**Alarm packet base on Confirmed Uplink Mode**(%%) to server.
441 )))
442
443
444 Below is an example of the Alarm Packet.
445
446 [[image:image-20220623090437-2.png||height="618" width="1246"]]
447
448
449 == 2.5  ​Configure LSN50v2-D20 ==
450
451
452 LSN50V2-D20 supports configuration via LoRaWAN downlink command or AT Commands.
453
454 * Downlink command instructions for different platform: [[Use Note for Server>>doc:Main.WebHome]](IoT LoRaWAN Server)
455 * AT Command Access Instructions: [[LINK>>||anchor="H4.A0UseATCommand"]]
456
457 There are two parts of commands: General one and Special for this model.
458
459
460 === 2.5.1 General Configure Commands ===
461
462
463 These commands are to configure:
464
465 * General system settings like: uplink interval.
466 * LoRaWAN protocol & radio related command.
467
468 These commands can be found on the wiki:  [[End Device AT Commands and Downlink Commands>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
469
470
471 === 2.5.2 Sensor related commands ===
472
473
474
475 ==== (% style="color:red" %)**Set Alarm Threshold:**(%%) ====
476
477
478 (% style="color:#4472c4" %)**1.  Set All Probes:**
479
480 (% style="color:#037691" %)**AT+18ALARM=min,max**
481
482 * When min=0, and max≠0, Alarm trigger when higher than max
483 * When min≠0, and max=0, Alarm trigger when lower than min
484 * When min≠0 and max≠0, Alarm trigger when higher than max or lower than min
485
486 **Example:**
487
488 AT+18ALARM=-10,30  ~/~/ Alarm when < -10 or higher than 30.
489
490
491 * (% style="color:#037691" %)**Downlink Payload:**
492
493 0x(0B F6 1E)   ~/~/ Same as AT+18ALARM=-10,30
494
495 (note: 0x1E= 30, 0xF6 means: 0xF6-0x100 = -10)
496
497
498 (% style="color:#4472c4" %)**2.  Set Separate Probe:**
499
500 (% style="color:#037691" %)**AT+18ALARM=min,max,index**
501
502 Index:
503
504 * 1: Temperature_Red
505 * 2: Temperature_White
506 * 3: Temperature_Black
507
508 **Example:**
509
510 AT+18ALARM=-10,30,1   ~/~/ Alarm when temperature_red < -10 or higher than 30.
511
512
513 * (% style="color:#037691" %)**Downlink Payload:**
514
515 0x(0B F6 1E 01)   ~/~/ Same as AT+18ALARM=-10,30,1
516
517 (note: 0x1E= 30, 0xF6 means: 0xF6-0x100 = -10)
518
519
520
521 ==== (% style="color:red" %)**Set Alarm Interval:**(%%) ====
522
523
524 The shortest time of two Alarm packet. (unit: min)
525
526 * (% style="color:#037691" %)**AT Command:**
527
528 AT+ATDC=30  ~/~/ The shortest interval of two Alarm packets is 30 minutes, Means is there is an alarm packet uplink, there won't be another one in the next 30 minutes.
529
530
531 * (% style="color:#037691" %)**Downlink Payload:**
532
533 0x(0D 00 1E)     **~-~-->** Set AT+ATDC=0x 00 1E = 30 minutes
534
535
536
537 ==== (% style="color:red" %)**Poll the Alarm settings:**(%%) ====
538
539
540 Send a LoRaWAN downlink to ask device send Alarm settings.
541
542 * (% style="color:#037691" %)**Downlink Payload:**
543
544 0x0E 01
545
546
547 **Example:**
548
549 [[image:1655948182791-225.png]]
550
551
552 **Explain:**
553
554 * Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message.
555
556 (% style="display:none" %)
557
558
559 == 2.6  LED Status ==
560
561
562 LSN50-v2-D20 has an internal LED, it will active in below situation:
563
564 * LED will fast blink 5 times when boot, this means the temperature sensor is detected.
565 * After the fast blinks on boot, the LED will flash once which means device is trying to send Join Packet to the network.
566 * If device successful join LoRaWAN network, the LED will be solid on for 5 seconds.
567
568 (% style="display:none" %)
569
570
571 == 2.7  Button Function ==
572
573
574 (((
575 **Internal RESET button:**
576 )))
577
578 (((
579 Press this button will reboot the device. Device will process OTAA Join to network again.
580 )))
581
582
583 == (% style="color:inherit; font-family:inherit; font-size:26px" %)2.8  ​Firmware Change Log(%%) ==
584
585
586 (((
587 **Firmware download link:  **[[https:~~/~~/www.dropbox.com/sh/bu7piiuwios42as/AACvP3nLaC7_oDpjnYJNBOr7a?dl=0>>https://www.dropbox.com/sh/bu7piiuwios42as/AACvP3nLaC7_oDpjnYJNBOr7a?dl=0]]
588 )))
589
590 (((
591 **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
592
593
594 )))
595
596 = 3. Battery & Power Consumption =
597
598
599 LSN50v2-D2x uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
600
601 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
602
603
604 = 4.  Use AT Command =
605
606 == 4.1  Access AT Commands ==
607
608
609 User can use a USB to TTL adapter to connect to LSN50V2-D20 to use AT command to configure the device. Example is as below:
610
611
612 [[image:image-20220623095817-4.png||height="665" width="1032"]]
613
614 (% style="display:none" %) (%%)
615
616 [[image:image-20220623100044-7.png]]
617
618
619 = 5.  FAQ =
620
621 == 5.1 What is the frequency range of LSN50v2-D20? ==
622
623
624 Different LSN50V2-D20 version supports different frequency range, below is the table for the working frequency and recommend bands for each model:
625
626 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LTC2%20-%20LoRaWAN%20Temperature%20Transmitter%20User%20Manual/WebHome/image-20230427172553-5.jpeg?rev=1.1||alt="image-20230427172553-5.jpeg"]]
627
628
629 == 5.2 What is the Frequency Plan? ==
630
631
632 Please refer Dragino End Node Frequency Plan:  [[End Device Frequency Band>>doc:Main.End Device Frequency Band.WebHome]]
633
634
635 == 5.3 How to update the firmware? ==
636
637
638 (((
639 User can upgrade the firmware for:
640 )))
641
642 * (((
643 (((
644 Support new features
645 )))
646 )))
647 * (((
648 (((
649 For bug fix
650 )))
651 )))
652 * (((
653 (((
654 Change LoRaWAN bands.
655 )))
656 )))
657
658 (((
659 Please see this link for how to upgrade: ** **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
660 )))
661
662
663 = 6.  Trouble Shooting =
664
665 == 6.1  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: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.
669
670
671 == 6.2  Abnormal temperature ==
672
673
674 When the temperature is displayed as - 0.1, it means that the sensor is not connected.
675
676 Please check whether the wiring is loose/Blocked by the insulation layer of the wire/pin damaged
677
678
679 = 7.  Order Info =
680
681
682 **Part Number:** (% style="color:blue" %)**LSN50V2-D20-XXX (Signal Probe)**
683
684 **~ Or (% style="color:blue" %)LSN50V2-D22-XXX (Dual Probe)(%%)**
685
686 **~ Or (% style="color:blue" %)LSN50V2-D23-XXX (Triple Probe)(%%)**
687
688
689 (% style="color:blue" %)**XXX**(%%)**: **The default frequency band
690
691 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
692 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
693 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
694 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
695 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
696 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
697 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
698 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
699
700 (% style="display:none" %)
701
702
703 = 8. ​ Packing Info =
704
705
706 (((
707 **Package Includes**:
708 )))
709
710 * (((
711 LSN50v2-D2x LoRaWAN Temperature Sensor x 1
712 )))
713
714 (((
715 **Dimension and weight**:
716 )))
717
718 * Device Size: cm
719 * Device Weight: g
720 * Package Size / pcs : cm
721 * Weight / pcs : g
722
723 (% style="display:none" %)
724
725
726 = 9.  ​Support =
727
728
729 * 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.
730
731 * 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]].