Last modified by Mengting Qiu on 2024/04/30 14:27
<
From version < 102.1 >
edited by Edwin Chen
on 2022/05/25 11:52
To version < 55.4 >
edited by Xiaoling
on 2022/05/23 11:51
>
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Summary

Details

Page properties
Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20220523115324-1.jpeg||height="317" width="317"]]
2 +[[image:image-20220523111447-1.jpeg||height="448" width="448"]]
3 3  
4 +{{box cssClass="floatinginfobox" title="**Contents**"}}
5 +{{toc/}}
6 +{{/box}}
4 4  
5 -**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
6 -
7 -
8 -
9 -
10 -**Table of Contents：**
11 -
12 12  {{toc/}}
13 13  
14 14  
15 15  
12 += 1.Introduction =
16 16  
17 -= 1. Introduction =
18 -
19 19  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20 20  
21 -(((
22 -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**(%%)**.**
23 -)))
24 24  
25 -(((
17 +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 +
26 26  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.
27 -)))
28 28  
29 -(((
30 30  LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
31 -)))
32 32  
33 -(((
34 34  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
35 -)))
36 36  
37 -(((
38 -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.
39 -)))
25 +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.
40 40  
41 -(((
42 42  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
43 -)))
44 44  
45 45  == 1.2 Features ==
46 46  
... ... @@ -58,69 +58,36 @@
58 58  
59 59  == 1.3 Specification ==
60 60  
61 -(((
62 62  **Built-in Temperature Sensor:**
63 -)))
64 64  
65 -* (((
66 -Resolution: 0.01 °C
67 -)))
68 -* (((
69 -Accuracy Tolerance : Typ ±0.3 °C
70 -)))
71 -* (((
72 -Long Term Drift: < 0.02 °C/yr
73 -)))
74 -* (((
75 -Operating Range: -40 ~~ 85 °C
76 -)))
47 +* Resolution: 0.01 °C
48 +* Accuracy Tolerance : Typ ±0.3 °C
49 +* Long Term Drift: < 0.02 °C/yr
50 +* Operating Range: -40 ~~ 85 °C
77 77  
78 -(((
79 79  **Built-in Humidity Sensor:**
80 -)))
81 81  
82 -* (((
83 -Resolution: 0.04 %RH
84 -)))
85 -* (((
86 -Accuracy Tolerance : Typ ±3 %RH
87 -)))
88 -* (((
89 -Long Term Drift: < 0.02 °C/yr
90 -)))
91 -* (((
92 -Operating Range: 0 ~~ 96 %RH
93 -)))
54 +* Resolution: 0.04 %RH
55 +* Accuracy Tolerance : Typ ±3 %RH
56 +* Long Term Drift: < 0.02 °C/yr
57 +* Operating Range: 0 ~~ 96 %RH
94 94  
95 -(((
96 96  **External Temperature Sensor:**
97 -)))
98 98  
99 -* (((
100 -Resolution: 0.0625 °C
101 -)))
102 -* (((
103 -±0.5°C accuracy from -10°C to +85°C
104 -)))
105 -* (((
106 -±2°C accuracy from -55°C to +125°C
107 -)))
108 -* (((
109 -Operating Range: -55 °C ~~ 125 °C
110 -)))
61 +* Resolution: 0.0625 °C
62 +* ±0.5°C accuracy from -10°C to +85°C
63 +* ±2°C accuracy from -55°C to +125°C
64 +* Operating Range: -55 °C ~~ 125 °C
111 111  
112 112  = 2. Connect LHT65N to IoT Server =
113 113  
114 114  == 2.1 How does LHT65N work? ==
115 115  
116 -(((
117 117  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.
118 -)))
119 119  
120 -(((
121 121  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.
122 -)))
123 123  
74 +
124 124  == 2.2 How to Activate LHT65N? ==
125 125  
126 126  The LHT65N has two working modes:
... ... @@ -128,13 +128,15 @@
128 128  * **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
129 129  * **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. 
130 130  
131 -(((
132 132  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
133 -)))
134 134  
135 135  [[image:image-20220515123819-1.png||height="379" width="317"]]
136 136  
137 -[[image:image-20220525110604-2.png]]
86 +(% border="1" %)
87 +|**Behavior on ACT**|**Function**|**Action**
88 +|**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.
89 +|**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.
90 +|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
138 138  
139 139  == 2.3 Example to join LoRaWAN network ==
140 140  
... ... @@ -161,8 +161,10 @@
161 161  
162 162  [[image:image-20220522232916-3.png]]
163 163  
117 +
164 164  [[image:image-20220522232932-4.png]]
165 165  
120 +
166 166  [[image:image-20220522232954-5.png]]
167 167  
168 168  Note: LHT65N use same payload as LHT65.
... ... @@ -179,51 +179,28 @@
179 179  
180 180  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.
181 181  
182 -[[image:image-20220522233300-8.png||height="219" width="722"]]
137 +[[image:image-20220522233300-8.png]]
183 183  
184 184  
185 185  == 2.4 Uplink Payload ==
186 186  
187 -The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
142 +The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and(% class="mark" %) every 20 minutes(%%) send one uplink by default.
188 188  
189 -After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
144 +After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
190 190  
191 -(% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
192 -|(% style="width:97px" %)(((
193 -**Size(bytes)**
194 -)))|(% style="width:39px" %)(((
195 -**2**
196 -)))|(% style="width:100px" %)(((
197 -**2**
198 -)))|(% style="width:77px" %)(((
199 -**2**
200 -)))|(% style="width:47px" %)(((
201 -**1**
202 -)))|(% style="width:51px" %)(((
203 -**4**
204 -)))
205 -|(% style="width:97px" %)(((
206 -**Value**
207 -)))|(% style="width:39px" %)(((
208 -[[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
209 -)))|(% style="width:100px" %)(((
210 -(((
211 -[[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
212 -)))
213 -)))|(% style="width:77px" %)(((
214 -(((
215 -[[Built-in>>||anchor="H2.4.4Built-inHumidity"]]
216 -)))
217 217  
218 -(((
219 -[[Humidity>>||anchor="H2.4.4Built-inHumidity"]]
220 -)))
221 -)))|(% style="width:47px" %)(((
222 -[[Ext>>||anchor="H2.4.5Ext23"]] #
223 -)))|(% style="width:51px" %)(((
224 -[[Ext value>>||anchor="H2.4.6Extvalue"]]
225 -)))
147 +(% border="1" style="width:572px" %)
148 +|(% 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**
149 +|(% style="width:106px" %)**Value**|(% style="width:71px" %)[[BAT>>path:#Battery]]|(% style="width:128px" %)(((
150 +[[Built-In>>path:#SHT20_Temperature]]
226 226  
152 +[[Temperature>>path:#SHT20_Temperature]]
153 +)))|(% style="width:103px" %)(((
154 +[[Built-in>>path:#SHT20_Humidity]]
155 +
156 +[[Humidity>>path:#SHT20_Humidity]]
157 +)))|(% style="width:72px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:89px" %)[[Ext value>>path:#Extension_sensor_value]]
158 +
227 227  * The First 6 bytes: has fix meanings for every LHT65N.
228 228  * The 7th byte (EXT #): defines the external sensor model.
229 229  * 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.)
... ... @@ -236,16 +236,29 @@
236 236  
237 237  [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
238 238  
239 -[[image:image-20220522234118-10.png||height="353" width="729"]]
171 +[[image:image-20220522234118-10.png]]
240 240  
173 +
241 241  === 2.4.2 BAT-Battery Info ===
242 242  
243 243  These two bytes of BAT include the battery state and the actually voltage
244 244  
245 -[[image:image-20220523152839-18.png]]
178 +(% style="width:646px" %)
179 +|Bit(bit)|(% style="width:272px" %)[15:14]|(% style="width:214px" %)[13:0]
180 +|Value|(% style="width:272px" %)(((
181 +BAT Status
246 246  
247 -[[image:image-20220522235639-1.png||height="139" width="727"]]
183 +00(b): Ultra Low ( BAT <= 2.50v)
248 248  
185 +01(b): Low  (2.50v <=BAT <= 2.55v)
186 +
187 +10(b): OK   (2.55v <= BAT <=2.65v)
188 +
189 +11(b): Good   (BAT >= 2.65v)
190 +)))|(% style="width:214px" %)Actually BAT voltage
191 +
192 +[[image:image-20220522235639-1.png]]
193 +
249 249  Check the battery voltage for LHT65N.
250 250  
251 251  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
... ... @@ -253,7 +253,7 @@
253 253  
254 254  === 2.4.3 Built-in Temperature ===
255 255  
256 -[[image:image-20220522235639-2.png||height="138" width="722"]]
201 +[[image:image-20220522235639-2.png]]
257 257  
258 258  * Temperature:  0x0ABB/100=27.47℃
259 259  
... ... @@ -263,7 +263,7 @@
263 263  
264 264  === 2.4.4 Built-in Humidity ===
265 265  
266 -[[image:image-20220522235639-4.png||height="138" width="722"]]
211 +[[image:image-20220522235639-4.png]]
267 267  
268 268  * Humidity:    0x025C/10=60.4%
269 269  
... ... @@ -271,7 +271,10 @@
271 271  
272 272  Bytes for External Sensor:
273 273  
274 -[[image:image-20220523152822-17.png]]
219 +(% style="width:624px" %)
220 +|(% style="width:139px" %)**EXT # Value**|(% style="width:484px" %)**External Sensor Type**
221 +|(% style="width:139px" %)0x01|(% style="width:484px" %)Sensor E3, Temperature Sensor
222 +|(% style="width:139px" %)0x09|(% style="width:484px" %)Sensor E3, Temperature Sensor, Datalog Mod
275 275  
276 276  === 2.4.6 Ext value ===
277 277  
... ... @@ -287,13 +287,9 @@
287 287  
288 288  * External temperature= (0xF54F-65536)/100=-27.37℃
289 289  
290 -(((
291 291  The last 2 bytes of data are meaningless
292 -)))
293 293  
294 -(((
295 295  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
296 -)))
297 297  
298 298  
299 299  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
... ... @@ -300,53 +300,30 @@
300 300  
301 301  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:
302 302  
303 -(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
304 -|(% style="width:96px" %)(((
305 -**Size(bytes)**
306 -)))|(% style="width:71px" %)(((
307 -**2**
308 -)))|(% style="width:99px" %)(((
309 -**2**
310 -)))|(% style="width:132px" %)(((
311 -**2**
312 -)))|(% style="width:54px" %)(((
313 -**1**
314 -)))|(% style="width:64px" %)(((
315 -**4**
316 -)))
317 -|(% style="width:96px" %)(((
318 -**Value**
319 -)))|(% style="width:71px" %)(((
320 -[[External temperature>>||anchor="H4.2SetExternalSensorMode"]]
321 -)))|(% style="width:99px" %)(((
322 -(((
323 -[[Built-In>>||anchor="H2.4.3Built-inTemperature"]]
324 -)))
325 325  
326 -(((
327 -[[Temperature>>||anchor="H2.4.3Built-inTemperature"]]
328 -)))
329 -)))|(% style="width:132px" %)(((
330 -(((
331 -BAT Status &
332 -)))
248 +(% border="1" style="width:697px" %)
249 +|(% 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**
250 +|(% style="width:96px" %)**Value**|(% style="width:164px" %)[[External temperature>>path:#DS18b20_value]]|(% style="width:104px" %)(((
251 +[[Built-In>>path:#SHT20_Temperature]]
333 333  
334 -(((
335 -[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
253 +[[Temperature>>path:#SHT20_Temperature]]
254 +)))|(% style="width:106px" %)(((
255 +[[BAT Status &>>path:#BAT_Humidity]]
256 +
257 +[[Built-in>>path:#BAT_Humidity]]
258 +
259 +[[Humidity>>path:#BAT_Humidity]]
260 +)))|(% style="width:108px" %)[[Status & Ext>>path:#Status_EXT]]|(% style="width:116px" %)(((
261 +[[Unix>>path:#Unix_Time_Stamp]]
262 +
263 +[[Time Stamp>>path:#Unix_Time_Stamp]]
336 336  )))
337 -)))|(% style="width:54px" %)(((
338 -Status & Ext
339 -)))|(% style="width:64px" %)(((
340 -(((
341 -[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
342 -)))
343 -)))
344 344  
345 -* **Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)**
266 +* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
346 346  
347 -(% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
348 -|(% style="width:65px" %)Bit(bit)|(% style="width:267px" %)[15:14]|(% style="width:134px" %)[11:0]
349 -|(% style="width:65px" %)Value|(% style="width:267px" %)(((
268 +(% border="1" style="width:587px" %)
269 +|Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
270 +|Value|(% style="width:280px" %)(((
350 350  BAT Status
351 351  
352 352  00(b): Ultra Low ( BAT <= 2.50v)
... ... @@ -356,8 +356,8 @@
356 356  10(b): OK   (2.55v <= BAT <=2.65v)
357 357  
358 358  11(b): Good   (BAT >= 2.65v)
359 -)))|(% style="width:134px" %)(((
360 -[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
280 +)))|(% style="width:136px" %)(((
281 +[[Built-in Humidity>>path:#SHT20_Humidity]]
361 361  
362 362  
363 363  )))
... ... @@ -364,8 +364,14 @@
364 364  
365 365  * **Status & Ext Byte**
366 366  
367 -[[image:image-20220523152434-16.png]]
288 +(% border="1" style="width:732px" %)
289 +|(% 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]**
290 +|(% 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" %)(((
291 +Ext:
368 368  
293 +0b(1001)
294 +)))
295 +
369 369  * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
370 370  * 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.
371 371  * 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)
... ... @@ -374,17 +374,12 @@
374 374  
375 375  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:
376 376  
377 -(((
378 378  **Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
379 -)))
380 380  
381 -(((
382 382  **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.
383 -)))
384 384  
385 -(((
308 +
386 386  Add Datacake:
387 -)))
388 388  
389 389  [[image:image-20220523000825-7.png||height="262" width="583"]]
390 390  
... ... @@ -393,24 +393,21 @@
393 393  
394 394  [[image:image-20220523000825-8.png||height="453" width="406"]]
395 395  
318 +
396 396  In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
397 397  
398 398  [[image:image-20220523000825-9.png||height="366" width="392"]]
399 399  
400 -[[image:image-20220523000825-10.png||height="413" width="728"]]
401 401  
402 -== 2.6 Datalog Feature ==
403 403  
404 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
325 +[[image:image-20220523000825-10.png||height="432" width="762"]]
405 405  
406 -=== 2.6.1 Ways to get datalog via LoRaWAN ===
407 407  
408 -There are two methods:
328 +== 2.6 Datalog Feature ==
409 409  
410 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
411 -1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
330 +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.
412 412  
413 -=== 2.6.2 Unix TimeStamp ===
332 +=== 2.6.1 Unix TimeStamp ===
414 414  
415 415  LHT65N uses Unix TimeStamp format based on
416 416  
... ... @@ -417,215 +417,102 @@
417 417  [[image:image-20220523001219-11.png||height="97" width="627"]]
418 418  
419 419  
420 -(((
421 421  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
422 -)))
423 423  
424 -(((
425 425  Below is the converter example
426 -)))
427 427  
428 -[[image:image-20220523001219-12.png||height="298" width="720"]]
343 +[[image:image-20220523001219-12.png||height="302" width="730"]]
429 429  
430 430  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
431 431  
432 -=== 2.6.3 Set Device Time ===
433 433  
434 -(((
348 +=== 2.6.2 Set Device Time ===
349 +
435 435  There are two ways to set device’s time:
436 -)))
437 437  
438 -(((
439 439  **~1. Through LoRaWAN MAC Command (Default settings)**
440 -)))
441 441  
442 -(((
443 443  User need to set SYNCMOD=1 to enable sync time via MAC command.
444 -)))
445 445  
446 -(((
447 447  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).
448 -)))
449 449  
450 -(((
451 451  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.
452 -)))
453 453  
454 -(((
455 -
456 -)))
457 457  
458 -(((
459 459  **2. Manually Set Time**
460 -)))
461 461  
462 -(((
463 463  User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
464 -)))
465 465  
466 -=== 2.6.4 Poll sensor value ===
467 467  
366 +=== 2.6.3 Poll sensor value ===
367 +
468 468  User can poll sensor value based on timestamps from the server. Below is the downlink command.
469 469  
470 -[[image:image-20220523152302-15.png]]
471 471  
472 -(((
371 +(% border="1" style="width:454px" %)
372 +|(% style="width:69px" %)1byte|(% style="width:129px" %)4bytes|(% style="width:134px" %)4bytes|(% style="width:119px" %)1byte
373 +|(% style="width:69px" %)31|(% style="width:129px" %)Timestamp start|(% style="width:134px" %)Timestamp end|(% style="width:119px" %)Uplink Interval
374 +
473 473  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.
474 -)))
475 475  
476 -(((
477 -For example, downlink command (% style="display:none" %) (%%)**31 5FC5F350 5FC6 0160 05**
478 -)))
479 479  
480 -(((
378 +For example, downlink command 31 5FC5F350 5FC6 0160 05
379 +
481 481  Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
482 -)))
483 483  
484 -(((
485 485  Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
486 -)))
487 487  
488 488  
489 -=== 2.6.5 Datalog Uplink payload ===
385 +=== 2.6.4 Datalog Uplink payload ===
490 490  
491 491  The Datalog poll reply uplink will use below payload format.
492 492  
493 -(((
494 -**Retrieval data payload**
495 -)))
496 496  
497 -(% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
498 -|(% style="width:93px" %)(((
499 -(((
500 -**Size(bytes)**
501 -)))
502 -)))|(% style="width:71px" %)(((
503 -(((
504 -**2**
505 -)))
506 -)))|(% style="width:102px" %)(((
507 -(((
508 -**2**
509 -)))
510 -)))|(% style="width:86px" %)(((
511 -(((
512 -**2**
513 -)))
514 -)))|(% style="width:86px" %)(((
515 -(((
516 -**1**
517 -)))
518 -)))|(% style="width:48px" %)(((
519 -(((
520 -**4**
521 -)))
522 -)))
523 -|(% style="width:93px" %)(((
524 -(((
525 -**Value**
526 -)))
527 -)))|(% style="width:71px" %)(((
528 -(((
529 -[[External sensor data>>||anchor="H2.4.6Extvalue"]]
530 -)))
531 -)))|(% style="width:102px" %)(((
532 -(((
533 -(((
534 -[[Built In>>||anchor="H2.4.3Built-inTemperature"]]
535 -)))
536 -)))
390 +Retrieval data payload
537 537  
538 -(((
539 -(((
540 -[[Temperature>>||anchor="H2.4.3Built-inTemperature"]]
541 -)))
542 -)))
543 -)))|(% style="width:86px" %)(((
544 -(((
545 -(((
546 -[[Built-in>>||anchor="H2.4.4Built-inHumidity"]]
547 -)))
548 -)))
392 +(% border="1" %)
393 +|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
394 +|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
395 +[[Built-In>>path:#SHT20_Temperature]]
549 549  
550 -(((
551 -(((
552 -[[Humidity>>||anchor="H2.4.4Built-inHumidity"]]
553 -)))
554 -)))
555 -)))|(% style="width:86px" %)(((
556 -(((
557 -Poll message flag & Ext
558 -)))
559 -)))|(% style="width:48px" %)(((
560 -(((
561 -(((
562 -[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
563 -)))
564 -)))
397 +[[Temperature>>path:#SHT20_Temperature]]
398 +)))|(((
399 +[[Built-in>>path:#SHT20_Humidity]]
565 565  
566 -(((
567 -(((
401 +[[Humidity>>path:#SHT20_Humidity]]
402 +)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
403 +[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
404 +
568 568  
569 569  )))
570 -)))
571 -)))
572 572  
573 -**Poll message flag & Ext**
408 +Poll message flag & Ext
574 574  
575 -[[image:image-20220523152208-14.png]]
576 576  
577 -(((
578 -(((
579 -Poll Message Flag: 1: This message is a poll message reply.
580 -)))
581 -)))
411 +(% border="1" %)
412 +|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
413 +|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
414 +Ext:
582 582  
583 -* (((
584 -(((
585 -Poll Message Flag is set to 1.
416 +0b(1001)
586 586  )))
587 -)))
588 -* (((
589 -(((
590 -Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
591 -)))
592 -)))
593 593  
594 -(((
595 -(((
419 +Poll Message Flag: 1: This message is a poll message reply.
420 +
421 +* Poll Message Flag is set to 1.
422 +* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
423 +
596 596  For example, in US915 band, the max payload for different DR is:
597 -)))
598 -)))
599 599  
600 -(((
601 -(((
602 -a) DR0: max is 11 bytes so one entry of data
603 -)))
604 -)))
426 +a)      DR0: max is 11 bytes so one entry of data
605 605  
606 -(((
607 -(((
608 -b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
609 -)))
610 -)))
428 +b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
611 611  
612 -(((
613 -(((
614 -c) DR2: total payload includes 11 entries of data
615 -)))
616 -)))
430 +c)      DR2: total payload includes 11 entries of data
617 617  
618 -(((
619 -(((
620 -d) DR3: total payload includes 22 entries of data.
621 -)))
622 -)))
432 +d)      DR3: total payload includes 22 entries of data.
623 623  
624 -(((
625 -(((
626 626  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
627 -)))
628 -)))
629 629  
630 630  
631 631  **Example:**
... ... @@ -632,27 +632,35 @@
632 632  
633 633  If LHT65N has below data inside Flash:
634 634  
635 -[[image:image-20220523144455-1.png||height="335" width="735"]]
441 +Flash Addr   |Unix Time | Ext | BAT voltage|  Value                  
636 636  
637 -(((
638 -If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
639 -)))
443 +80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67
640 640  
641 -(((
445 +80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67
446 +
447 +8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67
448 +
449 +8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67
450 +
451 +8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67
452 +
453 +8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67
454 +
455 +8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67
456 +
457 +8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67
458 +
459 +
460 +If user sends below downlink command:
461 +
462 +3160065F9760066DA705
463 +
642 642   Where : Start time: 60065F97 = time 21/1/19 04:27:03
643 -)))
644 644  
645 -(((
646 646   Stop time 60066DA7= time 21/1/19 05:27:03
647 -)))
648 648  
649 -(((
650 -
651 -)))
652 652  
653 -(((
654 654  LHT65N will uplink this payload.
655 -)))
656 656  
657 657  [[image:image-20220523001219-13.png||height="421" width="727"]]
658 658  
... ... @@ -672,50 +672,35 @@
672 672  
673 673  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
674 674  
489 +
675 675  == 2.7 Alarm Mode ==
676 676  
677 -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.
492 +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.
678 678  
679 -(((
680 -(% 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.
681 -)))
682 682  
683 -**AT Commands for Alarm mode:**
495 +Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
684 684  
685 -(% class="box infomessage" %)
686 -(((
687 -(((
497 +
498 +AT Commands for Alarm mode:
499 +
688 688  **AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
501 +
689 689  **AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
690 -)))
691 -)))
692 692  
504 +
505 +
693 693  == 2.8 LED Indicator ==
694 694  
695 -(((
696 696  The LHT65N has a triple color LED which for easy shows different stage.
697 -)))
698 698  
699 -(((
700 700  While pressing ACT button, the LED will work as per LED status with ACT button.
701 -)))
702 702  
703 -(((
704 704  In a normal working state:
705 -)))
706 706  
707 -* (((
708 -For each uplink, the BLUE LED or RED LED will blink once.
709 -)))
710 -* (((
711 -BLUE LED when an external sensor is connected
712 -)))
713 -* (((
714 -RED LED when an external sensor is not connected
715 -)))
716 -* (((
717 -For each success downlink, the PURPLE LED will blink once
718 -)))
514 +* For each uplink, the BLUE LED or RED LED will blink once.
515 +* BLUE LED when an external sensor is connected
516 +* RED LED when an external sensor is not connected
517 +* For each success downlink, the PURPLE LED will blink once
719 719  
720 720  ----
721 721  
... ... @@ -741,55 +741,29 @@
741 741  
742 742  = 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
743 743  
744 -(((
745 745  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
746 -)))
747 747  
748 -* (((
749 -AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
750 -)))
751 -* (((
752 -LoRaWAN Downlink instruction for different platforms:
753 -)))
545 +* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
546 +* LoRaWAN Downlink instruction for different platforms:
754 754  
755 -(((
756 756  [[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]]
757 -)))
758 758  
759 -(((
760 760  There are two kinds of commands to configure LHT65N, they are:
761 -)))
762 762  
763 -(((
764 -(% style="color:#4f81bd" %)* **General Commands**.
765 -)))
552 +* **General Commands**.
766 766  
767 -(((
768 768  These commands are to configure:
769 -)))
770 770  
771 -* (((
772 -General system settings like: uplink interval.
773 -)))
774 -* (((
775 -LoRaWAN protocol & radio-related commands.
776 -)))
556 +* General system settings like: uplink interval.
557 +* LoRaWAN protocol & radio-related commands.
777 777  
778 -(((
779 779  They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
780 -)))
781 781  
782 -(((
783 783  [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
784 -)))
785 785  
786 -(((
787 -(% style="color:#4f81bd" %)* **Commands special design for LHT65N**
788 -)))
563 +* **Commands special design for LHT65N**
789 789  
790 -(((
791 791  These commands are only valid for LHT65N, as below:
792 -)))
793 793  
794 794  == 4.1 Set Transmit Interval Time ==
795 795  
... ... @@ -797,26 +797,29 @@
797 797  
798 798  **AT Command: AT+TDC**
799 799  
800 -[[image:image-20220523150701-2.png]]
573 +(% border="1" %)
574 +|**Command Example**|**Function**|**Response**
575 +|AT+TDC?|Show current transmit Interval|(((
576 +30000
801 801  
802 -(((
803 -**Downlink Command: 0x01**
578 +OK
579 +
580 +the interval is 30000ms = 30s
804 804  )))
582 +|AT+TDC=60000|Set Transmit Interval|(((
583 +OK
805 805  
806 -(((
807 -Format: Command Code (0x01) followed by 3 bytes time value.
585 +Set transmit interval to 60000ms = 60 seconds
808 808  )))
809 809  
810 -(((
588 +**Downlink Command: 0x01**
589 +
590 +Format: Command Code (0x01) followed by 3 bytes time value.
591 +
811 811  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
812 -)))
813 813  
814 -* (((
815 -**Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
816 -)))
817 -* (((
818 -**Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
819 -)))
594 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
595 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
820 820  
821 821  == 4.2 Set External Sensor Mode ==
822 822  
... ... @@ -824,29 +824,27 @@
824 824  
825 825  **AT Command: AT+EXT**
826 826  
827 -[[image:image-20220523150759-3.png]]
603 +(% border="1" %)
604 +|**Command Example**|**Function**|**Response**
605 +|AT+EXT?|Get current external sensor mode|(((
606 +1
828 828  
829 -(((
830 -**Downlink Command: 0xA2**
608 +OK
609 +
610 +External Sensor mode =1
831 831  )))
612 +|AT+EXT=1|(% colspan="2" %)Set external sensor mode to 1
613 +|AT+EXT=9|(% colspan="2" %)Set to external DS18B20 with timestamp
832 832  
833 -(((
615 +**Downlink Command: 0xA2**
616 +
834 834  Total bytes: 2 ~~ 5 bytes
835 -)))
836 836  
837 -(((
838 -**Example:**
839 -)))
619 +Example:
840 840  
841 -* (((
842 -0xA201: Set external sensor type to E1
843 -)))
844 -* (((
845 -0xA209: Same as AT+EXT=9
846 -)))
847 -* (((
848 -0xA20702003c,Same as AT+SETCNT=60
849 -)))
621 +* 0xA201: Set external sensor type to E1
622 +* 0xA209: Same as AT+EXT=9
623 +* 0xA20702003c,Same as AT+SETCNT=60
850 850  
851 851  == 4.3 Enable/Disable uplink Temperature probe ID ==
852 852  
... ... @@ -857,14 +857,17 @@
857 857  
858 858  PID is default set to disable (0)
859 859  
634 +
860 860  **AT Command:**
861 861  
862 -[[image:image-20220523150928-4.png]]
637 +(% border="1" %)
638 +|**Command Example**|**Function**|**Response**
639 +|AT+PID=1|Enable PID uplink|OK
863 863  
864 864  **Downlink Command:**
865 865  
866 -* 0xA800  **~-~->** AT+PID=0
867 -* 0xA801     **~-~->** AT+PID=1
643 +* 0xA800     à AT+PID=0
644 +* 0xA801     à AT+PID=1
868 868  
869 869  == 4.4 Set Password ==
870 870  
... ... @@ -872,15 +872,19 @@
872 872  
873 873  **AT Command: AT+PWORD**
874 874  
875 -[[image:image-20220523151052-5.png]]
652 +(% border="1" %)
653 +|**Command Example**|**Function**|**Response**
654 +|AT+PWORD=?|Show password|(((
655 +123456
876 876  
877 -(((
878 -**Downlink Command:**
657 +
658 +OK
879 879  )))
660 +|AT+PWORD=999999|Set password|OK
880 880  
881 -(((
662 +**Downlink Command:**
663 +
882 882  No downlink command for this feature.
883 -)))
884 884  
885 885  == 4.5 Quit AT Command ==
886 886  
... ... @@ -888,12 +888,15 @@
888 888  
889 889  **AT Command: AT+DISAT**
890 890  
891 -[[image:image-20220523151132-6.png]]
672 +(% border="1" %)
673 +|**Command Example**|**Function**|**Response**
674 +|AT+DISAT|Quit AT Commands mode|OK
892 892  
893 893  **Downlink Command:**
894 894  
895 895  No downlink command for this feature.
896 896  
680 +
897 897  == 4.6 Set to sleep mode ==
898 898  
899 899  Feature: Set device to sleep mode
... ... @@ -900,8 +900,15 @@
900 900  
901 901  **AT Command: AT+SLEEP**
902 902  
903 -[[image:image-20220523151218-7.png]]
687 +(% border="1" %)
688 +| | |
689 +|**Command Example**|**Function**|**Response**
690 +|AT+SLEEP|Set to sleep mode|(((
691 +Clear all stored sensor data…
904 904  
693 +OK
694 +)))
695 +
905 905  **Downlink Command:**
906 906  
907 907  * There is no downlink command to set to Sleep mode.
... ... @@ -912,8 +912,14 @@
912 912  
913 913  **AT Command:**
914 914  
915 -[[image:image-20220523151253-8.png]]
706 +(% border="1" %)
707 +|**Command Example**|**Function**
708 +|AT+TIMESTAMP=1611104352|(((
709 +OK
916 916  
711 +Set System time to 2021-01-20 00:59:12
712 +)))
713 +
917 917  **Downlink Command:**
918 918  
919 919  0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
... ... @@ -920,19 +920,15 @@
920 920  
921 921  == 4.8 Set Time Sync Mode ==
922 922  
923 -(((
924 924  Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
925 -)))
926 926  
927 -(((
928 928  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.
929 -)))
930 930  
931 -(((
724 +
932 932  **AT Command:**
933 -)))
934 934  
935 -[[image:image-20220523151336-9.png]]
727 +|**Command Example**|**Function**
728 +|AT+SYNCMOD=1|Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
936 936  
937 937  **Downlink Command:**
938 938  
... ... @@ -946,7 +946,9 @@
946 946  
947 947  **AT Command:**
948 948  
949 -[[image:image-20220523151411-10.png]]
742 +(% border="1" %)
743 +|**Command Example**|**Function**
744 +|AT+SYNCTDC=0x0A|Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
950 950  
951 951  **Downlink Command:**
952 952  
... ... @@ -958,8 +958,51 @@
958 958  
959 959  **AT Command: AT+PDTA**
960 960  
961 -[[image:image-20220523151450-11.png]]
756 +(% border="1" %)
757 +|**Command Example**|**Response**
758 +|(((
759 +AT+PDTA=1,3
962 962  
761 +
762 +
763 +Print page 1 to 3
764 +)))|(((
765 +8019500 19/6/26 16:48 1 2992 sht_temp=28.21 sht_hum=71.5 ds_temp=27.31
766 +
767 +8019510 19/6/26 16:53 1 2994 sht_temp=27.64 sht_hum=69.3 ds_temp=26.93
768 +
769 +8019520 19/6/26 16:58 1 2996 sht_temp=28.39 sht_hum=72.0 ds_temp=27.06
770 +
771 +8019530 19/6/26 17:03 1 2996 sht_temp=27.97 sht_hum=70.4 ds_temp=27.12
772 +
773 +8019540 19/6/26 17:08 1 2996 sht_temp=27.80 sht_hum=72.9 ds_temp=27.06
774 +
775 +8019550 19/6/26 17:13 1 2998 sht_temp=27.30 sht_hum=72.4 ds_temp=26.68
776 +
777 +8019560 19/6/26 17:22 1 2992 sht_temp=26.27 sht_hum=62.3 ds_temp=26.56
778 +
779 +8019570
780 +
781 +8019580
782 +
783 +8019590
784 +
785 +80195A0
786 +
787 +80195B0
788 +
789 +80195C0
790 +
791 +80195D0
792 +
793 +80195E0
794 +
795 +80195F0
796 +
797 +
798 +OK
799 +)))
800 +
963 963  **Downlink Command:**
964 964  
965 965  No downlink commands for feature
... ... @@ -970,41 +970,54 @@
970 970  
971 971  **AT Command: AT+PLDTA**
972 972  
973 -[[image:image-20220523151524-12.png]]
811 +(% border="1" %)
812 +|**Command Example**|**Response**
813 +|(((
814 +AT+PLDTA=5
974 974  
975 -**Downlink Command:**
976 976  
977 -No downlink commands for feature
978 978  
979 -== 4.12 Clear Flash Record ==
818 +Print last 5 entries
819 +)))|(((
820 +Stop Tx and RTP events when read sensor data
980 980  
981 -Feature: Clear flash storage for data log feature.
822 +1 19/6/26 13:59 1 3005 sht_temp=27.09 sht_hum=79.5 ds_temp=26.75
982 982  
983 -**AT Command: AT+CLRDTA**
824 +2 19/6/26 14:04 1 3007 sht_temp=26.65 sht_hum=74.8 ds_temp=26.43
984 984  
985 -[[image:image-20220523151556-13.png]]
826 +3 19/6/26 14:09 1 3007 sht_temp=26.91 sht_hum=77.9 ds_temp=26.56
986 986  
987 -**Downlink Command: 0xA3**
828 +4 19/6/26 14:15 1 3007 sht_temp=26.93 sht_hum=76.7 ds_temp=26.75
988 988  
989 -* Example: 0xA301 ~/~/Same as AT+CLRDTA
830 +5 19/6/26 14:20 1 3007 sht_temp=26.78 sht_hum=76.6 ds_temp=26.43
990 990  
991 -== 4.13 Auto Send None-ACK messages ==
832 +Start Tx and RTP events
992 992  
993 -Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
834 +OK
835 +)))
994 994  
837 +**Downlink Command:**
995 995  
996 -**AT Command: AT+PNACKMD**
839 +No downlink commands for feature
997 997  
998 -The default factory setting is 0
841 +== 4.12 Clear Flash Record ==
999 999  
1000 -(% border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1001 -|=(% style="width: 171px;" %)**Command Example**|=(% style="width: 219px;" %)**Function**|=(% style="width: 119px;" %)**Response**
1002 -|(% style="width:171px" %)AT+PNACKMD=1|(% style="width:219px" %)Poll None-ACK message|(% style="width:119px" %)OK
843 +Feature: Clear flash storage for data log feature.
1003 1003  
1004 -**Downlink Command: 0x34**
845 +**AT Command: AT+CLRDTA**
1005 1005  
1006 -* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
847 +(% border="1" %)
848 +|**Command Example**|**Function**|**Response**
849 +|AT+CLRDTA|Clear date record|(((
850 +Clear all stored sensor data…
1007 1007  
852 +OK
853 +)))
854 +
855 +**Downlink Command: 0xA3**
856 +
857 +* Example: 0xA301 ~/~/Same as AT+CLRDTA
858 +
1008 1008  = 5. Battery & How to replace =
1009 1009  
1010 1010  == 5.1 Battery Type ==
... ... @@ -1011,15 +1011,11 @@
1011 1011  
1012 1012  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.
1013 1013  
1014 -(((
1015 1015  The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1016 1016  [[image:image-20220515075034-1.png||height="208" width="644"]]
1017 -)))
1018 1018  
1019 -(((
1020 1020  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1021 1021  
1022 -)))
1023 1023  
1024 1024  == 5.2 Replace Battery ==
1025 1025  
... ... @@ -1029,97 +1029,47 @@
1029 1029  
1030 1030  == 5.3 Battery Life Analyze ==
1031 1031  
1032 -(((
1033 1033  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:
1034 1034  https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
1035 -)))
1036 1036  
1037 1037  = 6. Order Info =
1038 1038  
1039 -(((
1040 -Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
1041 -)))
884 +Part Number: (% class="mark" %)**LHT65N-XX**
1042 1042  
1043 -(((
1044 -(% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1045 -)))
886 +**XX**: The default frequency band
1046 1046  
1047 -* (((
1048 -(% style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1049 -)))
1050 -* (((
1051 -(% style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1052 -)))
1053 -* (((
1054 -(% style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1055 -)))
1056 -* (((
1057 -(% style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1058 -)))
1059 -* (((
1060 -(% style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1061 -)))
1062 -* (((
1063 -(% style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1064 -)))
1065 -* (((
1066 -(% style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1067 -)))
1068 -* (((
1069 -(% style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1070 -)))
888 +* **AS923**: LoRaWAN AS923 band
889 +* **AU915**: LoRaWAN AU915 band
890 +* **EU433**: LoRaWAN EU433 band
891 +* **EU868**: LoRaWAN EU868 band
892 +* **KR920**: LoRaWAN KR920 band
893 +* **US915**: LoRaWAN US915 band
894 +* **IN865**: LoRaWAN IN865 band
895 +* **CN470**: LoRaWAN CN470 band
1071 1071  
1072 -(((
1073 -(% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1074 -)))
897 +**YY**: Sensor Accessories
1075 1075  
1076 -* (((
1077 -(% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1078 -)))
899 +* **E3**: External Temperature Probe
1079 1079  
1080 1080  = 7. Packing Info =
1081 1081  
1082 -(((
1083 1083  **Package Includes**:
1084 -)))
1085 1085  
1086 -* (((
1087 -LHT65N Temperature & Humidity Sensor x 1
1088 -)))
1089 -* (((
1090 -Program cable x 1
1091 -)))
1092 -* (((
1093 -Optional external sensor
1094 -)))
905 +* LHT65N Temperature & Humidity Sensor x 1
906 +* Program cable x 1
907 +* Optional external sensor
1095 1095  
1096 -(((
1097 1097  **Dimension and weight**:
1098 -)))
1099 1099  
1100 -* (((
1101 -Device Size:  13.5 x 7 x 3 cm
1102 -)))
1103 -* (((
1104 -Device Weight: 105g
1105 -)))
1106 -* (((
1107 -Package Size / pcs : 14.5 x 8 x 5 cm
1108 -)))
1109 -* (((
1110 -Weight / pcs : 170g
1111 -)))
911 +* Device Size:  13.5 x 7 x 3 cm
912 +* Device Weight: 105g
913 +* Package Size / pcs : 14.5 x 8 x 5 cm
914 +* Weight / pcs : 170g
1112 1112  
1113 1113  = 8. FCC Warning =
1114 1114  
1115 -(((
1116 1116  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1117 -)))
1118 1118  
1119 -(((
1120 1120  (1) This device may not cause harmful interference；
1121 -)))
1122 1122  
1123 -(((
1124 1124  (2) this device must accept any interference received, including interference that may cause undesired operation.
1125 -)))
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