Last modified by Mengting Qiu on 2024/04/30 14:27
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From version < 76.6 >
edited by Xiaoling
on 2022/05/23 15:39
To version < 51.1 >
edited by Edwin Chen
on 2022/05/23 00:18
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Summary

Details

Page properties
Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
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1 -(% style="text-align:center" %)
2 -[[image:image-20220523115324-1.jpeg||height="500" width="500"]]
3 -
4 -
5 -**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
6 -
7 -
8 -
9 -**Table of Contents：**
10 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
11 11  {{toc/}}
3 +{{/box}}
12 12  
5 += Overview =
13 13  
7 +[[image:LHT65N_10.png||alt="LHT65_Image" height="265" width="265"]]
14 14  
15 -= 1.Introduction =
16 16  
17 -== 1.1 What is LHT65N Temperature & Humidity Sensor ==
10 +The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a(% class="mark" %) **built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% class="mark" %)**Temperature Sensor**(%%)**.**
18 18  
19 -(((
20 -The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor**(%%)**.**
21 -)))
22 -
23 -(((
24 24  The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
25 -)))
26 26  
27 -(((
28 28  LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
29 -)))
30 30  
31 -(((
32 32  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
33 -)))
34 34  
35 -(((
36 -LHT65N supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
37 -)))
18 +LHT65N supports (% class="mark" %)Datalog Feature(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
38 38  
39 -(((
40 40  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
41 -)))
42 42  
43 -== 1.2 Features ==
44 44  
23 +== Features: ==
24 +
45 45  * Wall mountable
46 46  * LoRaWAN v1.0.3 Class A protocol
47 47  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
... ... @@ -54,87 +54,55 @@
54 54  * Tri-color LED to indicate working status
55 55  * Datalog feature
56 56  
57 -== 1.3 Specification ==
37 +== Specification: ==
58 58  
59 -(((
60 60  **Built-in Temperature Sensor:**
61 -)))
62 62  
63 -* (((
64 -Resolution: 0.01 °C
65 -)))
66 -* (((
67 -Accuracy Tolerance : Typ ±0.3 °C
68 -)))
69 -* (((
70 -Long Term Drift: < 0.02 °C/yr
71 -)))
72 -* (((
73 -Operating Range: -40 ~~ 85 °C
74 -)))
41 +* Resolution: 0.01 °C
42 +* Accuracy Tolerance : Typ ±0.3 °C
43 +* Long Term Drift: < 0.02 °C/yr
44 +* Operating Range: -40 ~~ 85 °C
75 75  
76 -(((
77 77  **Built-in Humidity Sensor:**
78 -)))
79 79  
80 -* (((
81 -Resolution: 0.04 %RH
82 -)))
83 -* (((
84 -Accuracy Tolerance : Typ ±3 %RH
85 -)))
86 -* (((
87 -Long Term Drift: < 0.02 °C/yr
88 -)))
89 -* (((
90 -Operating Range: 0 ~~ 96 %RH
91 -)))
48 +* Resolution: 0.04 %RH
49 +* Accuracy Tolerance : Typ ±3 %RH
50 +* Long Term Drift: < 0.02 °C/yr
51 +* Operating Range: 0 ~~ 96 %RH
92 92  
93 -(((
94 94  **External Temperature Sensor:**
95 -)))
96 96  
97 -* (((
98 -Resolution: 0.0625 °C
99 -)))
100 -* (((
101 -±0.5°C accuracy from -10°C to +85°C
102 -)))
103 -* (((
104 -±2°C accuracy from -55°C to +125°C
105 -)))
106 -* (((
107 -Operating Range: -55 °C ~~ 125 °C
108 -)))
55 +* Resolution: 0.0625 °C
56 +* ±0.5°C accuracy from -10°C to +85°C
57 +* ±2°C accuracy from -55°C to +125°C
58 +* Operating Range: -55 °C ~~ 125 °C
109 109  
110 -= 2. Connect LHT65N to IoT Server =
60 += Connect LHT65N to IoT Server =
111 111  
112 -== 2.1 How does LHT65N work? ==
62 +== How does LHT65N work? ==
113 113  
114 -(((
115 115  LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
116 -)))
117 117  
118 -(((
119 119  If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
120 -)))
121 121  
122 -== 2.2 How to Activate LHT65N? ==
123 123  
69 +== How to Activate LHT65N? ==
70 +
124 124  The LHT65N has two working modes:
125 125  
126 126  * **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
127 127  * **Working Mode**: In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
128 128  
129 -(((
130 130  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
131 -)))
132 132  
133 133  [[image:image-20220515123819-1.png||height="379" width="317"]]
134 134  
135 -[[image:image-20220523153201-19.png||height="163" width="739"]]
80 +|**Behavior on ACT**|**Function**|**Action**
81 +|**Pressing ACT between 1s < time < 3s**|Test uplink status|If LHT65N is already Joined to the LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has an external sensor connected, blue led will blink once. If LHT65N has no external sensor, red led will blink once.
82 +|**Pressing ACT for more than 3s**|Active Device|green led will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network. green led will solid turn on for 5 seconds after join in network.
83 +|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
136 136  
137 -== 2.3 Example to join LoRaWAN network ==
85 +== Example to join LoRaWAN network ==
138 138  
139 139  (% class="wikigeneratedid" %)
140 140  This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
... ... @@ -145,7 +145,7 @@
145 145  Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
146 146  
147 147  
148 -=== 2.3.1 Step 1: Create Device n TTN ===
96 +=== **Step 1**: Create Device n TTN ===
149 149  
150 150  Create a device in TTN V3 with the OTAA keys from LHT65N.
151 151  
... ... @@ -159,8 +159,10 @@
159 159  
160 160  [[image:image-20220522232916-3.png]]
161 161  
110 +
162 162  [[image:image-20220522232932-4.png]]
163 163  
113 +
164 164  [[image:image-20220522232954-5.png]]
165 165  
166 166  Note: LHT65N use same payload as LHT65.
... ... @@ -173,60 +173,37 @@
173 173  [[image:image-20220522233118-7.png]]
174 174  
175 175  
176 -=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
126 +=== Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
177 177  
178 178  Use ACT button to activate LHT65N and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
179 179  
180 -[[image:image-20220522233300-8.png||height="219" width="722"]]
130 +[[image:image-20220522233300-8.png]]
181 181  
182 182  
183 -== 2.4 Uplink Payload ==
133 +== Uplink Payload: ==
184 184  
185 -The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
135 +The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and(% class="mark" %) every 20 minutes(%%) send one uplink by default.
186 186  
187 -After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
137 +After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
188 188  
189 -(% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
190 -|(% style="width:97px" %)(((
191 -**Size(bytes)**
192 -)))|(% style="width:39px" %)(((
193 -**2**
194 -)))|(% style="width:100px" %)(((
195 -**2**
196 -)))|(% style="width:77px" %)(((
197 -**2**
198 -)))|(% style="width:47px" %)(((
199 -**1**
200 -)))|(% style="width:51px" %)(((
201 -**4**
202 -)))
203 -|(% style="width:97px" %)(((
204 -**Value**
205 -)))|(% style="width:39px" %)(((
206 -[[BAT>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.2BAT-BatteryInfo]]
207 -)))|(% style="width:100px" %)(((
208 -(((
209 -[[Built-In Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
210 -)))
211 -)))|(% style="width:77px" %)(((
212 -(((
213 -[[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
214 -)))
215 215  
216 -(((
217 -[[Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
218 -)))
219 -)))|(% style="width:47px" %)(((
220 -[[Ext>>path:#Extension_Sensor]] #
221 -)))|(% style="width:51px" %)(((
222 -[[Ext value>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]]
223 -)))
140 +(% style="width:572px" %)
141 +|(% style="width:106px" %)**Size(bytes)**|(% style="width:71px" %)**2**|(% style="width:128px" %)**2**|(% style="width:103px" %)**2**|(% style="width:72px" %)**1**|(% style="width:89px" %)**4**
142 +|(% style="width:106px" %)**Value**|(% style="width:71px" %)[[BAT>>path:#Battery]]|(% style="width:128px" %)(((
143 +[[Built-In>>path:#SHT20_Temperature]]
224 224  
145 +[[Temperature>>path:#SHT20_Temperature]]
146 +)))|(% style="width:103px" %)(((
147 +[[Built-in>>path:#SHT20_Humidity]]
148 +
149 +[[Humidity>>path:#SHT20_Humidity]]
150 +)))|(% style="width:72px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:89px" %)[[Ext value>>path:#Extension_sensor_value]]
151 +
225 225  * The First 6 bytes: has fix meanings for every LHT65N.
226 226  * The 7th byte (EXT #): defines the external sensor model.
227 227  * The 8^^th^^ ~~ 11^^th^^ byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
228 228  
229 -=== 2.4.1 Decoder in TTN V3 ===
156 +=== Decoder in TTN V3 ===
230 230  
231 231  When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
232 232  
... ... @@ -234,24 +234,37 @@
234 234  
235 235  [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
236 236  
237 -[[image:image-20220522234118-10.png||height="353" width="729"]]
164 +[[image:image-20220522234118-10.png]]
238 238  
239 -=== 2.4.2 BAT-Battery Info ===
240 240  
167 +=== BAT-Battery Info ===
168 +
241 241  These two bytes of BAT include the battery state and the actually voltage
242 242  
243 -[[image:image-20220523152839-18.png]]
171 +(% style="width:646px" %)
172 +|Bit(bit)|(% style="width:272px" %)[15:14]|(% style="width:214px" %)[13:0]
173 +|Value|(% style="width:272px" %)(((
174 +BAT Status
244 244  
245 -[[image:image-20220522235639-1.png||height="139" width="727"]]
176 +00(b): Ultra Low ( BAT <= 2.50v)
246 246  
178 +01(b): Low  (2.50v <=BAT <= 2.55v)
179 +
180 +10(b): OK   (2.55v <= BAT <=2.65v)
181 +
182 +11(b): Good   (BAT >= 2.65v)
183 +)))|(% style="width:214px" %)Actually BAT voltage
184 +
185 +[[image:image-20220522235639-1.png]]
186 +
247 247  Check the battery voltage for LHT65N.
248 248  
249 249  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
250 250  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
251 251  
252 -=== 2.4.3 Built-in Temperature ===
192 +=== Built-in Temperature ===
253 253  
254 -[[image:image-20220522235639-2.png||height="138" width="722"]]
194 +[[image:image-20220522235639-2.png]]
255 255  
256 256  * Temperature:  0x0ABB/100=27.47℃
257 257  
... ... @@ -259,92 +259,72 @@
259 259  
260 260  * Temperature:  (0xF5C6-65536)/100=-26.18℃
261 261  
262 -=== 2.4.4 Built-in Humidity ===
202 +=== Built-in Humidity ===
263 263  
264 -[[image:image-20220522235639-4.png||height="138" width="722"]]
204 +[[image:image-20220522235639-4.png]]
265 265  
266 266  * Humidity:    0x025C/10=60.4%
267 267  
268 -=== 2.4.5 Ext # ===
208 +=== Ext # ===
269 269  
270 270  Bytes for External Sensor:
271 271  
272 -[[image:image-20220523152822-17.png]]
212 +(% style="width:624px" %)
213 +|(% style="width:139px" %)**EXT # Value**|(% style="width:484px" %)**External Sensor Type**
214 +|(% style="width:139px" %)0x01|(% style="width:484px" %)Sensor E3, Temperature Sensor
215 +|(% style="width:139px" %)0x09|(% style="width:484px" %)Sensor E3, Temperature Sensor, Datalog Mod
273 273  
274 -=== 2.4.6 Ext value ===
217 +=== Ext value ===
275 275  
276 -==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
219 +==== Ext~=1, E3 Temperature Sensor ====
277 277  
278 278  [[image:image-20220522235639-5.png]]
279 279  
223 +
280 280  * DS18B20 temp=0x0ADD/100=27.81℃
281 281  
282 282  The last 2 bytes of data are meaningless
283 283  
228 +
229 +
284 284  [[image:image-20220522235639-6.png]]
285 285  
286 286  * External temperature= (0xF54F-65536)/100=-27.37℃
287 287  
288 -(((
289 289  The last 2 bytes of data are meaningless
290 -)))
291 291  
292 -(((
236 +
293 293  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
294 -)))
295 295  
296 296  
297 -==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
240 +==== Ext~=9, E3 sensor with Unix Timestamp ====
298 298  
299 299  Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below:
300 300  
301 -(% border="1" style="background-color:#ffffcc; color:green; width:468px" %)
302 -|(% style="width:96px" %)(((
303 -**Size(bytes)**
304 -)))|(% style="width:71px" %)(((
305 -**2**
306 -)))|(% style="width:99px" %)(((
307 -**2**
308 -)))|(% style="width:132px" %)(((
309 -**2**
310 -)))|(% style="width:54px" %)(((
311 -**1**
312 -)))|(% style="width:64px" %)(((
313 -**4**
314 -)))
315 -|(% style="width:96px" %)(((
316 -**Value**
317 -)))|(% style="width:71px" %)(((
318 -[[External temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.2SetExternalSensorMode]]
319 -)))|(% style="width:99px" %)(((
320 -(((
321 -[[Built-In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
322 -)))
323 323  
324 -(((
325 -[[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
326 -)))
327 -)))|(% style="width:132px" %)(((
328 -(((
329 -BAT Status &
330 -)))
245 +(% style="width:697px" %)
246 +|(% style="width:96px" %)**Size(bytes)**|(% style="width:164px" %)**2**|(% style="width:104px" %)**2**|(% style="width:106px" %)**2**|(% style="width:108px" %)**1**|(% style="width:116px" %)**4**
247 +|(% style="width:96px" %)**Value**|(% style="width:164px" %)[[External temperature>>path:#DS18b20_value]]|(% style="width:104px" %)(((
248 +[[Built-In>>path:#SHT20_Temperature]]
331 331  
332 -(((
333 -[[Built-in Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
250 +[[Temperature>>path:#SHT20_Temperature]]
251 +)))|(% style="width:106px" %)(((
252 +[[BAT Status &>>path:#BAT_Humidity]]
253 +
254 +[[Built-in>>path:#BAT_Humidity]]
255 +
256 +[[Humidity>>path:#BAT_Humidity]]
257 +)))|(% style="width:108px" %)[[Status & Ext>>path:#Status_EXT]]|(% style="width:116px" %)(((
258 +[[Unix>>path:#Unix_Time_Stamp]]
259 +
260 +[[Time Stamp>>path:#Unix_Time_Stamp]]
334 334  )))
335 -)))|(% style="width:54px" %)(((
336 -Status & Ext
337 -)))|(% style="width:64px" %)(((
338 -(((
339 -[[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]]
340 -)))
341 -)))
342 342  
343 -* **Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)**
263 +* **Battery status & **[[(% class="wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
344 344  
345 -(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
346 -|(% style="width:65px" %)Bit(bit)|(% style="width:267px" %)[15:14]|(% style="width:134px" %)[11:0]
347 -|(% style="width:65px" %)Value|(% style="width:267px" %)(((
265 +(% style="width:587px" %)
266 +|Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
267 +|Value|(% style="width:280px" %)(((
348 348  BAT Status
349 349  
350 350  00(b): Ultra Low ( BAT <= 2.50v)
... ... @@ -354,8 +354,8 @@
354 354  10(b): OK   (2.55v <= BAT <=2.65v)
355 355  
356 356  11(b): Good   (BAT >= 2.65v)
357 -)))|(% style="width:134px" %)(((
358 -[[Built-in Humidity>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
277 +)))|(% style="width:136px" %)(((
278 +[[Built-in Humidity>>path:#SHT20_Humidity]]
359 359  
360 360  
361 361  )))
... ... @@ -362,27 +362,29 @@
362 362  
363 363  * **Status & Ext Byte**
364 364  
365 -[[image:image-20220523152434-16.png]]
285 +(% style="width:732px" %)
286 +|(% style="width:128px" %)**Bits**|(% style="width:102px" %)**7**|(% style="width:145px" %)**6**|(% style="width:117px" %)**5**|(% style="width:147px" %)**4**|(% style="width:90px" %)**[3:0]**
287 +|(% style="width:128px" %)**Status & Ext**|(% style="width:102px" %)Not Defined|(% style="width:145px" %)Poll Message Flag|(% style="width:117px" %)Sync time OK|(% style="width:147px" %)Unix Time Request|(% style="width:90px" %)(((
288 +Ext:
366 366  
290 +0b(1001)
291 +)))
292 +
367 367  * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
368 368  * Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
369 369  * Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
370 370  
371 -== 2.5 Show data on Datacake ==
297 +== Show data on Datacake ==
372 372  
373 373  Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
374 374  
375 -(((
301 +
376 376  **Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
377 -)))
378 378  
379 -(((
380 380  **Step 2**: Configure your Application to forward data to Datacake you will need to add integration. Go to TTN V3 Console ~-~-> Applications ~-~-> Integrations ~-~-> Add Integrations.
381 -)))
382 382  
383 -(((
306 +
384 384  Add Datacake:
385 -)))
386 386  
387 387  [[image:image-20220523000825-7.png||height="262" width="583"]]
388 388  
... ... @@ -391,17 +391,21 @@
391 391  
392 392  [[image:image-20220523000825-8.png||height="453" width="406"]]
393 393  
316 +
394 394  In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
395 395  
396 396  [[image:image-20220523000825-9.png||height="366" width="392"]]
397 397  
398 -[[image:image-20220523000825-10.png||height="413" width="728"]]
399 399  
400 -== 2.6 Datalog Feature ==
401 401  
323 +[[image:image-20220523000825-10.png||height="432" width="762"]]
324 +
325 +
326 +== Datalog Feature ==
327 +
402 402  This feature is always enabled. When user wants to retrieve the sensor value, he can send a poll command from the IoT platform to ask LHT65N to send the value in the required time slot.
403 403  
404 -=== 2.6.1 Unix TimeStamp ===
330 +=== Unix TimeStamp ===
405 405  
406 406  LHT65N uses Unix TimeStamp format based on
407 407  
... ... @@ -408,215 +408,103 @@
408 408  [[image:image-20220523001219-11.png||height="97" width="627"]]
409 409  
410 410  
411 -(((
412 412  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
413 -)))
414 414  
415 -(((
416 416  Below is the converter example
417 -)))
418 418  
419 -[[image:image-20220523001219-12.png||height="298" width="720"]]
341 +[[image:image-20220523001219-12.png||height="353" width="853"]]
420 420  
421 421  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
422 422  
423 -=== 2.6.2 Set Device Time ===
424 424  
425 -(((
346 +=== Set Device Time ===
347 +
426 426  There are two ways to set device’s time:
427 -)))
428 428  
429 -(((
430 430  **~1. Through LoRaWAN MAC Command (Default settings)**
431 -)))
432 432  
433 -(((
434 434  User need to set SYNCMOD=1 to enable sync time via MAC command.
435 -)))
436 436  
437 -(((
438 438  Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
439 -)))
440 440  
441 -(((
442 442  Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.
443 -)))
444 444  
445 -(((
446 -
447 -)))
448 448  
449 -(((
450 450  **2. Manually Set Time**
451 -)))
452 452  
453 -(((
454 454  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
455 -)))
456 456  
457 -=== 2.6.3 Poll sensor value ===
458 458  
364 +=== Poll sensor value ===
365 +
459 459  User can poll sensor value based on timestamps from the server. Below is the downlink command.
460 460  
461 -[[image:image-20220523152302-15.png]]
462 462  
463 -(((
369 +(% style="width:454px" %)
370 +|(% style="width:69px" %)1byte|(% style="width:129px" %)4bytes|(% style="width:134px" %)4bytes|(% style="width:119px" %)1byte
371 +|(% style="width:69px" %)31|(% style="width:129px" %)Timestamp start|(% style="width:134px" %)Timestamp end|(% style="width:119px" %)Uplink Interval
372 +
373 +
464 464  Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices will reply with all data log during this time period, use the uplink interval.
465 -)))
466 466  
467 -(((
468 -For example, downlink command **31 5FC5F350 5FC6 0160 05**
469 -)))
470 470  
471 -(((
377 +For example, downlink command 31 5FC5F350 5FC6 0160 05
378 +
472 472  Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
473 -)))
474 474  
475 -(((
476 476  Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
477 -)))
478 478  
479 479  
480 -=== 2.6.4 Datalog Uplink payload ===
384 +=== Datalog Uplink payload ===
481 481  
482 482  The Datalog poll reply uplink will use below payload format.
483 483  
484 -(((
485 -**Retrieval data payload**
486 -)))
487 487  
488 -(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
489 -|(% style="width:93px" %)(((
490 -(((
491 -**Size(bytes)**
492 -)))
493 -)))|(% style="width:71px" %)(((
494 -(((
495 -**2**
496 -)))
497 -)))|(% style="width:102px" %)(((
498 -(((
499 -**2**
500 -)))
501 -)))|(% style="width:86px" %)(((
502 -(((
503 -**2**
504 -)))
505 -)))|(% style="width:86px" %)(((
506 -(((
507 -**1**
508 -)))
509 -)))|(% style="width:48px" %)(((
510 -(((
511 -**4**
512 -)))
513 -)))
514 -|(% style="width:93px" %)(((
515 -(((
516 -**Value**
517 -)))
518 -)))|(% style="width:71px" %)(((
519 -(((
520 -[[External sensor data>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]]
521 -)))
522 -)))|(% style="width:102px" %)(((
523 -(((
524 -(((
525 -[[Built In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
526 -)))
527 -)))
389 +Retrieval data payload
528 528  
529 -(((
530 -(((
531 -[[Temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
532 -)))
533 -)))
534 -)))|(% style="width:86px" %)(((
535 -(((
536 -(((
537 -[[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
538 -)))
539 -)))
391 +|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
392 +|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
393 +[[Built-In>>path:#SHT20_Temperature]]
540 540  
541 -(((
542 -(((
543 -[[Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
544 -)))
545 -)))
546 -)))|(% style="width:86px" %)(((
547 -(((
548 -[[Poll message flag & Ext>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.4DatalogUplinkpayload]]
549 -)))
550 -)))|(% style="width:48px" %)(((
551 -(((
552 -(((
553 -[[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.1UnixTimeStamp]]
554 -)))
555 -)))
395 +[[Temperature>>path:#SHT20_Temperature]]
396 +)))|(((
397 +[[Built-in>>path:#SHT20_Humidity]]
556 556  
557 -(((
558 -(((
399 +[[Humidity>>path:#SHT20_Humidity]]
400 +)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
401 +[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
402 +
559 559  
560 560  )))
561 -)))
562 -)))
563 563  
564 -**Poll message flag & Ext**
565 565  
566 -[[image:image-20220523152208-14.png]]
407 +Poll message flag & Ext
567 567  
568 -(((
569 -(((
570 -Poll Message Flag: 1: This message is a poll message reply.
571 -)))
572 -)))
573 573  
574 -* (((
575 -(((
576 -Poll Message Flag is set to 1.
410 +|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
411 +|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
412 +Ext:
413 +
414 +0b(1001)
577 577  )))
578 -)))
579 -* (((
580 -(((
581 -Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
582 -)))
583 -)))
584 584  
585 -(((
586 -(((
417 +
418 +Poll Message Flag: 1: This message is a poll message reply.
419 +
420 +* Poll Message Flag is set to 1.
421 +* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
422 +
587 587  For example, in US915 band, the max payload for different DR is:
588 -)))
589 -)))
590 590  
591 -(((
592 -(((
593 -a) DR0: max is 11 bytes so one entry of data
594 -)))
595 -)))
425 +a)      DR0: max is 11 bytes so one entry of data
596 596  
597 -(((
598 -(((
599 -b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
600 -)))
601 -)))
427 +b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
602 602  
603 -(((
604 -(((
605 -c) DR2: total payload includes 11 entries of data
606 -)))
607 -)))
429 +c)      DR2: total payload includes 11 entries of data
608 608  
609 -(((
610 -(((
611 -d) DR3: total payload includes 22 entries of data.
612 -)))
613 -)))
431 +d)      DR3: total payload includes 22 entries of data.
614 614  
615 -(((
616 -(((
617 617  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
618 -)))
619 -)))
620 620  
621 621  
622 622  **Example:**
... ... @@ -623,29 +623,37 @@
623 623  
624 624  If LHT65N has below data inside Flash:
625 625  
626 -[[image:image-20220523144455-1.png||height="335" width="735"]]
440 +Flash Addr   |Unix Time | Ext | BAT voltage|  Value                  
627 627  
628 -(((
629 -If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
630 -)))
442 +80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67
631 631  
632 -(((
444 +80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67
445 +
446 +8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67
447 +
448 +8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67
449 +
450 +8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67
451 +
452 +8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67
453 +
454 +8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67
455 +
456 +8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67
457 +
458 +
459 +If user sends below downlink command:
460 +
461 +3160065F9760066DA705
462 +
633 633   Where : Start time: 60065F97 = time 21/1/19 04:27:03
634 -)))
635 635  
636 -(((
637 637   Stop time 60066DA7= time 21/1/19 05:27:03
638 -)))
639 639  
640 -(((
641 -
642 -)))
643 643  
644 -(((
645 645  LHT65N will uplink this payload.
646 -)))
647 647  
648 -[[image:image-20220523001219-13.png||height="421" width="727"]]
470 +[[image:image-20220523001219-13.png]]
649 649  
650 650  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
651 651  
... ... @@ -663,69 +663,49 @@
663 663  
664 664  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
665 665  
666 -== 2.7 Alarm Mode ==
667 667  
489 +== Alarm Mode ==
490 +
668 668  Alarm mode feature is added since firmware v1.5. When device is in Alarm mode, it will check the built-in sensor temperature in a short interval. If the temperature exceeds the pre-configure range, it will send an uplink immediately.
669 669  
670 -(((
671 -(% style="color:red" %)Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
672 -)))
673 673  
674 -(((
675 -**AT Commands for Alarm mode:**
676 -)))
494 +Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
677 677  
678 -(% class="box infomessage" %)
679 -(((
680 -(((
496 +
497 +AT Commands for Alarm mode:
498 +
681 681  **AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
682 -)))
683 -)))
684 684  
685 -(% class="box infomessage" %)
686 -(((
687 -(((
688 688  **AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
689 -)))
690 -)))
691 691  
692 -== 2.8 LED Indicator ==
693 693  
694 -(((
504 +
505 +== LED Indicator ==
506 +
695 695  The LHT65N has a triple color LED which for easy shows different stage.
696 -)))
697 697  
698 -(((
699 699  While pressing ACT button, the LED will work as per LED status with ACT button.
700 -)))
701 701  
702 -(((
703 703  In a normal working state:
704 -)))
705 705  
706 -* (((
707 -For each uplink, the BLUE LED or RED LED will blink once.
708 -)))
709 -* (((
710 -BLUE LED when an external sensor is connected
711 -)))
712 -* (((
713 -RED LED when an external sensor is not connected
714 -)))
715 -* (((
716 -For each success downlink, the PURPLE LED will blink once
717 -)))
513 +* For each uplink, the BLUE LED or RED LED will blink once.
514 +* BLUE LED when an external sensor is connected
515 +* RED LED when an external sensor is not connected
516 +* For each success downlink, the PURPLE LED will blink once
718 718  
719 719  ----
720 720  
721 -== 2.9 Installation ==
520 +== Installation ==
722 722  
723 -[[image:image-20220516231650-1.png||height="436" width="428"]]
522 +[[image:image-20220516231650-1.png||height="632" width="620"]]
724 724  
725 -= 3. Sensors & Accessories =
726 726  
727 -== 3.1 E3 Temperature Probe ==
728 728  
526 +
527 += Sensors & Accessories =
528 +
529 +== E3 Temperature Probe ==
530 +
729 729  [[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
730 730  
731 731  
... ... @@ -737,313 +737,72 @@
737 737  * Operating Range: -40 ~~ 125 °C
738 738  * -55°C to 125°C
739 739  * Working voltage 2.35v ~~ 5v
542 +
740 740  
741 -= 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
544 += Battery & How to replace =
742 742  
743 -Use can configure LHT65N via AT Command or LoRaWAN Downlink.
546 +== Battery Type ==
744 744  
745 -* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
746 -* LoRaWAN Downlink instruction for different platforms:
747 -
748 -[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server>>url:http://wiki.dragino.com/index.php?title=Main_Page#Use_Note_for_Server]]
749 -
750 -There are two kinds of commands to configure LHT65N, they are:
751 -
752 -(% style="color:#4f81bd" %)* **General Commands**.
753 -
754 -These commands are to configure:
755 -
756 -* General system settings like: uplink interval.
757 -* LoRaWAN protocol & radio-related commands.
758 -
759 -They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
760 -
761 -[[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
762 -
763 -(% style="color:#4f81bd" %)* **Commands special design for LHT65N**
764 -
765 -These commands are only valid for LHT65N, as below:
766 -
767 -== 4.1 Set Transmit Interval Time ==
768 -
769 -Feature: Change LoRaWAN End Node Transmit Interval.
770 -
771 -**AT Command: AT+TDC**
772 -
773 -[[image:image-20220523150701-2.png]]
774 -
775 -**Downlink Command: 0x01**
776 -
777 -Format: Command Code (0x01) followed by 3 bytes time value.
778 -
779 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
780 -
781 -* **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
782 -* **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
783 -
784 -== 4.2 Set External Sensor Mode ==
785 -
786 -Feature: Change External Sensor Mode.
787 -
788 -**AT Command: AT+EXT**
789 -
790 -[[image:image-20220523150759-3.png]]
791 -
792 -**Downlink Command: 0xA2**
793 -
794 -Total bytes: 2 ~~ 5 bytes
795 -
796 -**Example:**
797 -
798 -* 0xA201: Set external sensor type to E1
799 -* 0xA209: Same as AT+EXT=9
800 -* 0xA20702003c,Same as AT+SETCNT=60
801 -
802 -== 4.3 Enable/Disable uplink Temperature probe ID ==
803 -
804 -Feature: If PID is enabled, device will send the temperature probe ID on:
805 -
806 -* First Packet after OTAA Join
807 -* Every 24 hours since the first packet.
808 -
809 -PID is default set to disable (0)
810 -
811 -**AT Command:**
812 -
813 -[[image:image-20220523150928-4.png]]
814 -
815 -**Downlink Command:**
816 -
817 -* 0xA800  **~-~->** AT+PID=0
818 -* 0xA801     **~-~->** AT+PID=1
819 -
820 -== 4.4 Set Password ==
821 -
822 -Feature: Set device password, max 9 digits
823 -
824 -**AT Command: AT+PWORD**
825 -
826 -[[image:image-20220523151052-5.png]]
827 -
828 -**Downlink Command:**
829 -
830 -No downlink command for this feature.
831 -
832 -== 4.5 Quit AT Command ==
833 -
834 -Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
835 -
836 -**AT Command: AT+DISAT**
837 -
838 -[[image:image-20220523151132-6.png]]
839 -
840 -**Downlink Command:**
841 -
842 -No downlink command for this feature.
843 -
844 -== 4.6 Set to sleep mode ==
845 -
846 -Feature: Set device to sleep mode
847 -
848 -**AT Command: AT+SLEEP**
849 -
850 -[[image:image-20220523151218-7.png]]
851 -
852 -**Downlink Command:**
853 -
854 -* There is no downlink command to set to Sleep mode.
855 -
856 -== 4.7 Set system time ==
857 -
858 -Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
859 -
860 -**AT Command:**
861 -
862 -[[image:image-20220523151253-8.png]]
863 -
864 -**Downlink Command:**
865 -
866 -0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
867 -
868 -== 4.8 Set Time Sync Mode ==
869 -
870 -Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
871 -
872 -SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0.
873 -
874 -**AT Command:**
875 -
876 -[[image:image-20220523151336-9.png]]
877 -
878 -**Downlink Command:**
879 -
880 -0x28 01 ~/~/ Same As AT+SYNCMOD=1
881 -
882 -0x28 00 ~/~/ Same As AT+SYNCMOD=0
883 -
884 -== 4.9 Set Time Sync Interval ==
885 -
886 -Feature: Define System time sync interval. SYNCTDC default value: 10 days.
887 -
888 -**AT Command:**
889 -
890 -[[image:image-20220523151411-10.png]]
891 -
892 -**Downlink Command:**
893 -
894 -0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
895 -
896 -== 4.10 Print data entries base on page. ==
897 -
898 -Feature: Print the sector data from start page to stop page (max is 416 pages).
899 -
900 -**AT Command: AT+PDTA**
901 -
902 -[[image:image-20220523151450-11.png]]
903 -
904 -**Downlink Command:**
905 -
906 -No downlink commands for feature
907 -
908 -== 4.11 Print last few data entries. ==
909 -
910 -Feature: Print the last few data entries
911 -
912 -**AT Command: AT+PLDTA**
913 -
914 -[[image:image-20220523151524-12.png]]
915 -
916 -**Downlink Command:**
917 -
918 -No downlink commands for feature
919 -
920 -== 4.12 Clear Flash Record ==
921 -
922 -Feature: Clear flash storage for data log feature.
923 -
924 -**AT Command: AT+CLRDTA**
925 -
926 -[[image:image-20220523151556-13.png]]
927 -
928 -**Downlink Command: 0xA3**
929 -
930 -* Example: 0xA301 ~/~/Same as AT+CLRDTA
931 -
932 -= 5. Battery & How to replace =
933 -
934 -== 5.1 Battery Type ==
935 -
936 936  LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
937 937  
938 -(((
939 939  The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
940 940  [[image:image-20220515075034-1.png||height="208" width="644"]]
941 -)))
942 942  
943 -(((
553 +
944 944  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
945 945  
946 -)))
947 947  
948 -== 5.2 Replace Battery ==
557 +== Replace Battery ==
949 949  
950 950  LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok.
951 951  
952 952  [[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
953 953  
954 -== 5.3 Battery Life Analyze ==
955 955  
956 -(((
564 +== Battery Life Analyze ==
565 +
957 957  Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
958 958  https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
959 -)))
960 960  
961 -= 6. Order Info =
962 962  
963 -(((
964 -Part Number: (% style="color:#4f81bd" %)** LHT65N-XX**
965 -)))
570 += Order Info =
966 966  
967 -(((
968 -(% style="color:#4f81bd" %)**XX **(%%): The default frequency band
969 -)))
572 +Part Number: (% class="mark" %)**LHT65N-XX**
970 970  
971 -* (((
972 -(% style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
973 -)))
974 -* (((
975 -(% style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
976 -)))
977 -* (((
978 -(% style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
979 -)))
980 -* (((
981 -(% style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
982 -)))
983 -* (((
984 -(% style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
985 -)))
986 -* (((
987 -(% style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
988 -)))
989 -* (((
990 -(% style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
991 -)))
992 -* (((
993 -(% style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
994 -)))
574 +**XX**: The default frequency band
995 995  
996 -(((
997 -(% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
998 -)))
576 +* **AS923**: LoRaWAN AS923 band
577 +* **AU915**: LoRaWAN AU915 band
578 +* **EU433**: LoRaWAN EU433 band
579 +* **EU868**: LoRaWAN EU868 band
580 +* **KR920**: LoRaWAN KR920 band
581 +* **US915**: LoRaWAN US915 band
582 +* **IN865**: LoRaWAN IN865 band
583 +* **CN470**: LoRaWAN CN470 band
999 999  
1000 -* (((
1001 -(% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1002 -)))
585 +**YY**: Sensor Accessories
1003 1003  
1004 -= 7. Packing Info =
587 +* **E3**: External Temperature Probe
1005 1005  
1006 -(((
589 += Packing Info =
590 +
1007 1007  **Package Includes**:
1008 -)))
1009 1009  
1010 -* (((
1011 -LHT65N Temperature & Humidity Sensor x 1
1012 -)))
1013 -* (((
1014 -Program cable x 1
1015 -)))
1016 -* (((
1017 -Optional external sensor
1018 -)))
593 +* LHT65N Temperature & Humidity Sensor x 1
594 +* Program cable x 1
595 +* Optional external sensor
1019 1019  
1020 -(((
1021 1021  **Dimension and weight**:
1022 -)))
1023 1023  
1024 -* (((
1025 -Device Size:  13.5 x 7 x 3 cm
1026 -)))
1027 -* (((
1028 -Device Weight: 105g
1029 -)))
1030 -* (((
1031 -Package Size / pcs : 14.5 x 8 x 5 cm
1032 -)))
1033 -* (((
1034 -Weight / pcs : 170g
1035 -)))
599 +* Device Size:  13.5 x 7 x 3 cm
600 +* Device Weight: 105g
601 +* Package Size / pcs : 14.5 x 8 x 5 cm
602 +* Weight / pcs : 170g
1036 1036  
1037 -= 8. FCC Warning =
604 += FCC Warning =
1038 1038  
1039 -(((
1040 1040  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1041 -)))
1042 1042  
1043 -(((
1044 -(1) This device may not cause harmful interference；
1045 -)))
608 +(1) This device may not cause harmful interference, and
1046 1046  
1047 -(((
1048 -(2) this device must accept any interference received, including interference that may cause undesired operation.
1049 -)))
610 +(2) this device must accept any interference received, including interference that may cause undesired operation
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