Last modified by Mengting Qiu on 2024/04/30 14:27
<
From version < 46.1 >
edited by Edwin Chen
on 2022/05/23 00:08
To version < 57.3 >
edited by Xiaoling
on 2022/05/23 13:48
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Summary

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Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
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 +
2 2  {{toc/}}
3 -{{/box}}
4 4  
5 -= Overview =
6 6  
7 -[[image:LHT65N_10.png||alt="LHT65_Image" height="265" width="265"]]
8 8  
15 += 1.Introduction =
9 9  
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**(%%)**.**
17 +== 1.1 What is LHT65N Temperature & Humidity Sensor ==
11 11  
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 +(((
12 12  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 +)))
13 13  
27 +(((
14 14  LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
29 +)))
15 15  
31 +(((
16 16  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
33 +)))
17 17  
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.
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 +)))
19 19  
39 +(((
20 20  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
41 +)))
21 21  
43 +== 1.2 Features ==
22 22  
23 -== Features: ==
24 -
25 25  * Wall mountable
26 26  * LoRaWAN v1.0.3 Class A protocol
27 27  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
... ... @@ -34,55 +34,91 @@
34 34  * Tri-color LED to indicate working status
35 35  * Datalog feature
36 36  
37 -== Specification: ==
57 +== 1.3 Specification ==
38 38  
59 +(((
39 39  **Built-in Temperature Sensor:**
61 +)))
40 40  
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
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 +)))
45 45  
76 +(((
46 46  **Built-in Humidity Sensor:**
78 +)))
47 47  
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
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 +)))
52 52  
93 +(((
53 53  **External Temperature Sensor:**
95 +)))
54 54  
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
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 +)))
59 59  
60 -= Connect LHT65N to IoT Server =
110 += 2. Connect LHT65N to IoT Server =
61 61  
62 -== How does LHT65N work? ==
112 +== 2.1 How does LHT65N work? ==
63 63  
114 +(((
64 64  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 +)))
65 65  
118 +(((
66 66  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 +)))
67 67  
122 +== 2.2 How to Activate LHT65N? ==
68 68  
69 -== How to Activate LHT65N? ==
70 -
71 71  The LHT65N has two working modes:
72 72  
73 73  * **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
74 74  * **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. 
75 75  
129 +(((
76 76  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
131 +)))
77 77  
78 78  [[image:image-20220515123819-1.png||height="379" width="317"]]
79 79  
135 +(% border="1" %)
80 80  |**Behavior on ACT**|**Function**|**Action**
81 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 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 83  |**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
84 84  
85 -== Example to join LoRaWAN network ==
141 +== 2.3 Example to join LoRaWAN network ==
86 86  
87 87  (% class="wikigeneratedid" %)
88 88  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.
... ... @@ -93,7 +93,7 @@
93 93  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:
94 94  
95 95  
96 -=== **Step 1**: Create Device n TTN ===
152 +=== 2.3.1 Step 1: Create Device n TTN ===
97 97  
98 98  Create a device in TTN V3 with the OTAA keys from LHT65N.
99 99  
... ... @@ -123,37 +123,33 @@
123 123  [[image:image-20220522233118-7.png]]
124 124  
125 125  
126 -=== Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
182 +=== 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
127 127  
128 128  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.
129 129  
130 -[[image:image-20220522233300-8.png]]
186 +[[image:image-20220522233300-8.png||height="219" width="722"]]
131 131  
132 132  
133 -== Uplink Payload: ==
189 +== 2.4 Uplink Payload ==
134 134  
135 -The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and(% class="mark" %) every 20 minutes(%%) send one uplink by default.
191 +The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
136 136  
137 -After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
193 +After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
138 138  
139 139  
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]]
196 +(% border="1" style="width:605px" %)
197 +|(% style="width:106px" %)**Size(bytes)**|(% style="width:71px" %)**2**|(% style="width:183px" %)**2**|(% style="width:155.172px" %)**2**|(% style="width:49px" %)**1**|(% style="width:92px" %)**4**
198 +|(% style="width:106px" %)**Value**|(% style="width:71px" %)[[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]]|(% style="width:183px" %)(((
199 +[[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]]
200 +)))|(% style="width:155.172px" %)(((
201 +[[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]]
202 +)))|(% style="width:49px" %)[[Ext>>path:#Extension_Sensor]] #|(% style="width:92px" %)[[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]]
144 144  
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 -
152 152  * The First 6 bytes: has fix meanings for every LHT65N.
153 153  * The 7th byte (EXT #): defines the external sensor model.
154 154  * 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.)
155 155  
156 -=== Decoder in TTN V3 ===
208 +=== 2.4.1 Decoder in TTN V3 ===
157 157  
158 158  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.
159 159  
... ... @@ -164,7 +164,7 @@
164 164  [[image:image-20220522234118-10.png]]
165 165  
166 166  
167 -=== BAT-Battery Info ===
219 +=== 2.4.2 BAT-Battery Info ===
168 168  
169 169  These two bytes of BAT include the battery state and the actually voltage
170 170  
... ... @@ -189,27 +189,24 @@
189 189  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
190 190  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
191 191  
192 -=== Built-in Temperature ===
244 +=== 2.4.3 Built-in Temperature ===
193 193  
194 194  [[image:image-20220522235639-2.png]]
195 195  
196 196  * Temperature:  0x0ABB/100=27.47℃
197 197  
198 -
199 199  [[image:image-20220522235639-3.png]]
200 200  
201 201  * Temperature:  (0xF5C6-65536)/100=-26.18℃
202 202  
254 +=== 2.4.4 Built-in Humidity ===
203 203  
204 -=== Built-in Humidity ===
205 -
206 206  [[image:image-20220522235639-4.png]]
207 207  
208 208  * Humidity:    0x025C/10=60.4%
209 209  
260 +=== 2.4.5 Ext # ===
210 210  
211 -=== Ext # ===
212 -
213 213  Bytes for External Sensor:
214 214  
215 215  (% style="width:624px" %)
... ... @@ -217,20 +217,16 @@
217 217  |(% style="width:139px" %)0x01|(% style="width:484px" %)Sensor E3, Temperature Sensor
218 218  |(% style="width:139px" %)0x09|(% style="width:484px" %)Sensor E3, Temperature Sensor, Datalog Mod
219 219  
269 +=== 2.4.6 Ext value ===
220 220  
221 -=== Ext value ===
271 +==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
222 222  
223 -==== Ext~=1, E3 Temperature Sensor ====
224 -
225 225  [[image:image-20220522235639-5.png]]
226 226  
227 -
228 228  * DS18B20 temp=0x0ADD/100=27.81℃
229 229  
230 230  The last 2 bytes of data are meaningless
231 231  
232 -
233 -
234 234  [[image:image-20220522235639-6.png]]
235 235  
236 236  * External temperature= (0xF54F-65536)/100=-27.37℃
... ... @@ -237,16 +237,15 @@
237 237  
238 238  The last 2 bytes of data are meaningless
239 239  
240 -
241 241  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
242 242  
243 243  
244 -==== Ext~=9, E3 sensor with Unix Time stamp ====
288 +==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
245 245  
246 246  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:
247 247  
248 248  
249 -(% style="width:697px" %)
293 +(% border="1" style="width:697px" %)
250 250  |(% 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**
251 251  |(% style="width:96px" %)**Value**|(% style="width:164px" %)[[External temperature>>path:#DS18b20_value]]|(% style="width:104px" %)(((
252 252  [[Built-In>>path:#SHT20_Temperature]]
... ... @@ -264,9 +264,9 @@
264 264  [[Time Stamp>>path:#Unix_Time_Stamp]]
265 265  )))
266 266  
267 -* **Battery status & **[[**Built-in Humidity**>>path:#SHT20_Humidity]]
311 +* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
268 268  
269 -(% style="width:587px" %)
313 +(% border="1" style="width:587px" %)
270 270  |Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
271 271  |Value|(% style="width:280px" %)(((
272 272  BAT Status
... ... @@ -284,10 +284,9 @@
284 284  
285 285  )))
286 286  
287 -
288 288  * **Status & Ext Byte**
289 289  
290 -(% style="width:732px" %)
333 +(% border="1" style="width:732px" %)
291 291  |(% 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]**
292 292  |(% 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" %)(((
293 293  Ext:
... ... @@ -299,10 +299,214 @@
299 299  * 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.
300 300  * 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)
301 301  
345 +== 2.5 Show data on Datacake ==
302 302  
347 +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:
303 303  
304 -== LED Indicator ==
349 +**Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
305 305  
351 +**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.
352 +
353 +
354 +Add Datacake:
355 +
356 +[[image:image-20220523000825-7.png||height="262" width="583"]]
357 +
358 +
359 +Select default key as Access Key:
360 +
361 +[[image:image-20220523000825-8.png||height="453" width="406"]]
362 +
363 +
364 +In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
365 +
366 +[[image:image-20220523000825-9.png||height="366" width="392"]]
367 +
368 +
369 +
370 +[[image:image-20220523000825-10.png||height="432" width="762"]]
371 +
372 +
373 +== 2.6 Datalog Feature ==
374 +
375 +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.
376 +
377 +=== 2.6.1 Unix TimeStamp ===
378 +
379 +LHT65N uses Unix TimeStamp format based on
380 +
381 +[[image:image-20220523001219-11.png||height="97" width="627"]]
382 +
383 +
384 +User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
385 +
386 +Below is the converter example
387 +
388 +[[image:image-20220523001219-12.png||height="302" width="730"]]
389 +
390 +So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
391 +
392 +
393 +=== 2.6.2 Set Device Time ===
394 +
395 +There are two ways to set device’s time:
396 +
397 +**~1. Through LoRaWAN MAC Command (Default settings)**
398 +
399 +User need to set SYNCMOD=1 to enable sync time via MAC command.
400 +
401 +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).
402 +
403 +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.
404 +
405 +
406 +**2. Manually Set Time**
407 +
408 +User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
409 +
410 +
411 +=== 2.6.3 Poll sensor value ===
412 +
413 +User can poll sensor value based on timestamps from the server. Below is the downlink command.
414 +
415 +
416 +(% border="1" style="width:454px" %)
417 +|(% style="width:69px" %)1byte|(% style="width:129px" %)4bytes|(% style="width:134px" %)4bytes|(% style="width:119px" %)1byte
418 +|(% style="width:69px" %)31|(% style="width:129px" %)Timestamp start|(% style="width:134px" %)Timestamp end|(% style="width:119px" %)Uplink Interval
419 +
420 +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.
421 +
422 +
423 +For example, downlink command 31 5FC5F350 5FC6 0160 05
424 +
425 +Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
426 +
427 +Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
428 +
429 +
430 +=== 2.6.4 Datalog Uplink payload ===
431 +
432 +The Datalog poll reply uplink will use below payload format.
433 +
434 +
435 +Retrieval data payload
436 +
437 +(% border="1" %)
438 +|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
439 +|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
440 +[[Built-In>>path:#SHT20_Temperature]]
441 +
442 +[[Temperature>>path:#SHT20_Temperature]]
443 +)))|(((
444 +[[Built-in>>path:#SHT20_Humidity]]
445 +
446 +[[Humidity>>path:#SHT20_Humidity]]
447 +)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
448 +[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
449 +
450 +
451 +)))
452 +
453 +Poll message flag & Ext
454 +
455 +
456 +(% border="1" %)
457 +|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
458 +|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
459 +Ext:
460 +
461 +0b(1001)
462 +)))
463 +
464 +Poll Message Flag: 1: This message is a poll message reply.
465 +
466 +* Poll Message Flag is set to 1.
467 +* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
468 +
469 +For example, in US915 band, the max payload for different DR is:
470 +
471 +a)      DR0: max is 11 bytes so one entry of data
472 +
473 +b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
474 +
475 +c)      DR2: total payload includes 11 entries of data
476 +
477 +d)      DR3: total payload includes 22 entries of data.
478 +
479 +If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
480 +
481 +
482 +**Example:**
483 +
484 +If LHT65N has below data inside Flash:
485 +
486 +Flash Addr   |Unix Time | Ext | BAT voltage|  Value                  
487 +
488 +80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67
489 +
490 +80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67
491 +
492 +8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67
493 +
494 +8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67
495 +
496 +8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67
497 +
498 +8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67
499 +
500 +8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67
501 +
502 +8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67
503 +
504 +
505 +If user sends below downlink command:
506 +
507 +3160065F9760066DA705
508 +
509 + Where : Start time: 60065F97 = time 21/1/19 04:27:03
510 +
511 + Stop time 60066DA7= time 21/1/19 05:27:03
512 +
513 +
514 +LHT65N will uplink this payload.
515 +
516 +[[image:image-20220523001219-13.png||height="421" width="727"]]
517 +
518 +7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
519 +
520 +Where the first 11 bytes is for the first entry:
521 +
522 +7FFF089801464160065F97
523 +
524 +Ext sensor data=0x7FFF/100=327.67
525 +
526 +Temp=0x0898/100=22.00
527 +
528 +Hum=0x0146/10=32.6
529 +
530 +poll message flag & Ext=0x41,means reply data,Ext=1
531 +
532 +Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
533 +
534 +
535 +== 2.7 Alarm Mode ==
536 +
537 +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.
538 +
539 +
540 +Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
541 +
542 +
543 +AT Commands for Alarm mode:
544 +
545 +**AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
546 +
547 +**AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
548 +
549 +
550 +
551 +== 2.8 LED Indicator ==
552 +
306 306  The LHT65N has a triple color LED which for easy shows different stage.
307 307  
308 308  While pressing ACT button, the LED will work as per LED status with ACT button.
... ... @@ -316,17 +316,14 @@
316 316  
317 317  ----
318 318  
319 -== Installation ==
566 +== 2.9 Installation ==
320 320  
321 -[[image:image-20220516231650-1.png||height="632" width="620"]]
568 +[[image:image-20220516231650-1.png||height="436" width="428"]]
322 322  
570 += 3. Sensors & Accessories =
323 323  
572 +== 3.1 E3 Temperature Probe ==
324 324  
325 -
326 -= Sensors & Accessories =
327 -
328 -== E3 Temperature Probe ==
329 -
330 330  [[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
331 331  
332 332  
... ... @@ -338,36 +338,350 @@
338 338  * Operating Range: -40 ~~ 125 °C
339 339  * -55°C to 125°C
340 340  * Working voltage 2.35v ~~ 5v
341 -
342 342  
343 -= Battery & How to replace =
586 += 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
344 344  
345 -== Battery Type ==
588 +Use can configure LHT65N via AT Command or LoRaWAN Downlink.
346 346  
590 +* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
591 +* LoRaWAN Downlink instruction for different platforms:
592 +
593 +[[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]]
594 +
595 +There are two kinds of commands to configure LHT65N, they are:
596 +
597 +* **General Commands**.
598 +
599 +These commands are to configure:
600 +
601 +* General system settings like: uplink interval.
602 +* LoRaWAN protocol & radio-related commands.
603 +
604 +They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
605 +
606 +[[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
607 +
608 +* **Commands special design for LHT65N**
609 +
610 +These commands are only valid for LHT65N, as below:
611 +
612 +== 4.1 Set Transmit Interval Time ==
613 +
614 +Feature: Change LoRaWAN End Node Transmit Interval.
615 +
616 +**AT Command: AT+TDC**
617 +
618 +(% border="1" %)
619 +|**Command Example**|**Function**|**Response**
620 +|AT+TDC?|Show current transmit Interval|(((
621 +30000
622 +
623 +OK
624 +
625 +the interval is 30000ms = 30s
626 +)))
627 +|AT+TDC=60000|Set Transmit Interval|(((
628 +OK
629 +
630 +Set transmit interval to 60000ms = 60 seconds
631 +)))
632 +
633 +**Downlink Command: 0x01**
634 +
635 +Format: Command Code (0x01) followed by 3 bytes time value.
636 +
637 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
638 +
639 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
640 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
641 +
642 +== 4.2 Set External Sensor Mode ==
643 +
644 +Feature: Change External Sensor Mode.
645 +
646 +**AT Command: AT+EXT**
647 +
648 +(% border="1" %)
649 +|**Command Example**|**Function**|**Response**
650 +|AT+EXT?|Get current external sensor mode|(((
651 +1
652 +
653 +OK
654 +
655 +External Sensor mode =1
656 +)))
657 +|AT+EXT=1|(% colspan="2" %)Set external sensor mode to 1
658 +|AT+EXT=9|(% colspan="2" %)Set to external DS18B20 with timestamp
659 +
660 +**Downlink Command: 0xA2**
661 +
662 +Total bytes: 2 ~~ 5 bytes
663 +
664 +Example:
665 +
666 +* 0xA201: Set external sensor type to E1
667 +* 0xA209: Same as AT+EXT=9
668 +* 0xA20702003c,Same as AT+SETCNT=60
669 +
670 +== 4.3 Enable/Disable uplink Temperature probe ID ==
671 +
672 +Feature: If PID is enabled, device will send the temperature probe ID on:
673 +
674 +* First Packet after OTAA Join
675 +* Every 24 hours since the first packet.
676 +
677 +PID is default set to disable (0)
678 +
679 +
680 +**AT Command:**
681 +
682 +(% border="1" %)
683 +|**Command Example**|**Function**|**Response**
684 +|AT+PID=1|Enable PID uplink|OK
685 +
686 +**Downlink Command:**
687 +
688 +* 0xA800     à AT+PID=0
689 +* 0xA801     à AT+PID=1
690 +
691 +== 4.4 Set Password ==
692 +
693 +Feature: Set device password, max 9 digits
694 +
695 +**AT Command: AT+PWORD**
696 +
697 +(% border="1" %)
698 +|**Command Example**|**Function**|**Response**
699 +|AT+PWORD=?|Show password|(((
700 +123456
701 +
702 +
703 +OK
704 +)))
705 +|AT+PWORD=999999|Set password|OK
706 +
707 +**Downlink Command:**
708 +
709 +No downlink command for this feature.
710 +
711 +== 4.5 Quit AT Command ==
712 +
713 +Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
714 +
715 +**AT Command: AT+DISAT**
716 +
717 +(% border="1" %)
718 +|**Command Example**|**Function**|**Response**
719 +|AT+DISAT|Quit AT Commands mode|OK
720 +
721 +**Downlink Command:**
722 +
723 +No downlink command for this feature.
724 +
725 +
726 +== 4.6 Set to sleep mode ==
727 +
728 +Feature: Set device to sleep mode
729 +
730 +**AT Command: AT+SLEEP**
731 +
732 +(% border="1" %)
733 +| | |
734 +|**Command Example**|**Function**|**Response**
735 +|AT+SLEEP|Set to sleep mode|(((
736 +Clear all stored sensor data…
737 +
738 +OK
739 +)))
740 +
741 +**Downlink Command:**
742 +
743 +* There is no downlink command to set to Sleep mode.
744 +
745 +== 4.7 Set system time ==
746 +
747 +Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
748 +
749 +**AT Command:**
750 +
751 +(% border="1" %)
752 +|**Command Example**|**Function**
753 +|AT+TIMESTAMP=1611104352|(((
754 +OK
755 +
756 +Set System time to 2021-01-20 00:59:12
757 +)))
758 +
759 +**Downlink Command:**
760 +
761 +0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
762 +
763 +== 4.8 Set Time Sync Mode ==
764 +
765 +Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
766 +
767 +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.
768 +
769 +
770 +**AT Command:**
771 +
772 +|**Command Example**|**Function**
773 +|AT+SYNCMOD=1|Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
774 +
775 +**Downlink Command:**
776 +
777 +0x28 01 ~/~/ Same As AT+SYNCMOD=1
778 +
779 +0x28 00 ~/~/ Same As AT+SYNCMOD=0
780 +
781 +== 4.9 Set Time Sync Interval ==
782 +
783 +Feature: Define System time sync interval. SYNCTDC default value: 10 days.
784 +
785 +**AT Command:**
786 +
787 +(% border="1" %)
788 +|**Command Example**|**Function**
789 +|AT+SYNCTDC=0x0A|Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
790 +
791 +**Downlink Command:**
792 +
793 +0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
794 +
795 +== 4.10 Print data entries base on page. ==
796 +
797 +Feature: Print the sector data from start page to stop page (max is 416 pages).
798 +
799 +**AT Command: AT+PDTA**
800 +
801 +(% border="1" %)
802 +|**Command Example**|**Response**
803 +|(((
804 +AT+PDTA=1,3
805 +
806 +
807 +
808 +Print page 1 to 3
809 +)))|(((
810 +8019500 19/6/26 16:48 1 2992 sht_temp=28.21 sht_hum=71.5 ds_temp=27.31
811 +
812 +8019510 19/6/26 16:53 1 2994 sht_temp=27.64 sht_hum=69.3 ds_temp=26.93
813 +
814 +8019520 19/6/26 16:58 1 2996 sht_temp=28.39 sht_hum=72.0 ds_temp=27.06
815 +
816 +8019530 19/6/26 17:03 1 2996 sht_temp=27.97 sht_hum=70.4 ds_temp=27.12
817 +
818 +8019540 19/6/26 17:08 1 2996 sht_temp=27.80 sht_hum=72.9 ds_temp=27.06
819 +
820 +8019550 19/6/26 17:13 1 2998 sht_temp=27.30 sht_hum=72.4 ds_temp=26.68
821 +
822 +8019560 19/6/26 17:22 1 2992 sht_temp=26.27 sht_hum=62.3 ds_temp=26.56
823 +
824 +8019570
825 +
826 +8019580
827 +
828 +8019590
829 +
830 +80195A0
831 +
832 +80195B0
833 +
834 +80195C0
835 +
836 +80195D0
837 +
838 +80195E0
839 +
840 +80195F0
841 +
842 +
843 +OK
844 +)))
845 +
846 +**Downlink Command:**
847 +
848 +No downlink commands for feature
849 +
850 +== 4.11 Print last few data entries. ==
851 +
852 +Feature: Print the last few data entries
853 +
854 +**AT Command: AT+PLDTA**
855 +
856 +(% border="1" %)
857 +|**Command Example**|**Response**
858 +|(((
859 +AT+PLDTA=5
860 +
861 +
862 +
863 +Print last 5 entries
864 +)))|(((
865 +Stop Tx and RTP events when read sensor data
866 +
867 +1 19/6/26 13:59 1 3005 sht_temp=27.09 sht_hum=79.5 ds_temp=26.75
868 +
869 +2 19/6/26 14:04 1 3007 sht_temp=26.65 sht_hum=74.8 ds_temp=26.43
870 +
871 +3 19/6/26 14:09 1 3007 sht_temp=26.91 sht_hum=77.9 ds_temp=26.56
872 +
873 +4 19/6/26 14:15 1 3007 sht_temp=26.93 sht_hum=76.7 ds_temp=26.75
874 +
875 +5 19/6/26 14:20 1 3007 sht_temp=26.78 sht_hum=76.6 ds_temp=26.43
876 +
877 +Start Tx and RTP events
878 +
879 +OK
880 +)))
881 +
882 +**Downlink Command:**
883 +
884 +No downlink commands for feature
885 +
886 +== 4.12 Clear Flash Record ==
887 +
888 +Feature: Clear flash storage for data log feature.
889 +
890 +**AT Command: AT+CLRDTA**
891 +
892 +(% border="1" %)
893 +|**Command Example**|**Function**|**Response**
894 +|AT+CLRDTA|Clear date record|(((
895 +Clear all stored sensor data…
896 +
897 +OK
898 +)))
899 +
900 +**Downlink Command: 0xA3**
901 +
902 +* Example: 0xA301 ~/~/Same as AT+CLRDTA
903 +
904 += 5. Battery & How to replace =
905 +
906 +== 5.1 Battery Type ==
907 +
347 347  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.
348 348  
349 349  The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
350 350  [[image:image-20220515075034-1.png||height="208" width="644"]]
351 351  
352 -
353 353  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
354 354  
355 355  
356 -== Replace Battery ==
916 +== 5.2 Replace Battery ==
357 357  
358 358  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.
359 359  
360 360  [[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
361 361  
922 +== 5.3 Battery Life Analyze ==
362 362  
363 -== Battery Life Analyze ==
364 -
365 365  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:
366 366  https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
367 367  
927 += 6. Order Info =
368 368  
369 -= Order Info =
370 -
371 371  Part Number: (% class="mark" %)**LHT65N-XX**
372 372  
373 373  **XX**: The default frequency band
... ... @@ -385,7 +385,7 @@
385 385  
386 386  * **E3**: External Temperature Probe
387 387  
388 -= Packing Info =
946 += 7. Packing Info =
389 389  
390 390  **Package Includes**:
391 391  
... ... @@ -400,10 +400,10 @@
400 400  * Package Size / pcs : 14.5 x 8 x 5 cm
401 401  * Weight / pcs : 170g
402 402  
403 -= FCC Warning =
961 += 8. FCC Warning =
404 404  
405 405  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
406 406  
407 -(1) This device may not cause harmful interference, and
965 +(1) This device may not cause harmful interference；
408 408  
409 -(2) this device must accept any interference received, including interference that may cause undesired operation
967 +(2) this device must accept any interference received, including interference that may cause undesired operation.
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