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<
From version < 52.1 >
edited by Edwin Chen
on 2022/05/23 00:35
To version < 102.1 >
edited by Edwin Chen
on 2022/05/25 11:52
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Summary

Details

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Content
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
1 +(% style="text-align:center" %)
2 +[[image:image-20220523115324-1.jpeg||height="317" width="317"]]
3 +
4 +
5 +**LHT65N LoRaWAN Temperature & Humidity Sensor Manual**
6 +
7 +
8 +
9 +
10 +**Table of Contents：**
11 +
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  
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. Introduction =
11 11  
19 +== 1.1 What is LHT65N Temperature & Humidity Sensor ==
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 +
25 +(((
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.
27 +)))
13 13  
29 +(((
14 14  LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
31 +)))
15 15  
33 +(((
16 16  LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
35 +)))
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.
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 +)))
19 19  
41 +(((
20 20  *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
43 +)))
21 21  
45 +== 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 +34,87 @@
34 34  * Tri-color LED to indicate working status
35 35  * Datalog feature
36 36  
37 -== Specification: ==
59 +== 1.3 Specification ==
38 38  
61 +(((
39 39  **Built-in Temperature Sensor:**
63 +)))
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
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 +)))
45 45  
78 +(((
46 46  **Built-in Humidity Sensor:**
80 +)))
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
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 +)))
52 52  
95 +(((
53 53  **External Temperature Sensor:**
97 +)))
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
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 +)))
59 59  
60 -= Connect LHT65N to IoT Server =
112 += 2. Connect LHT65N to IoT Server =
61 61  
62 -== How does LHT65N work? ==
114 +== 2.1 How does LHT65N work? ==
63 63  
116 +(((
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.
118 +)))
65 65  
120 +(((
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.
122 +)))
67 67  
124 +== 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  
131 +(((
76 76  The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
133 +)))
77 77  
78 78  [[image:image-20220515123819-1.png||height="379" width="317"]]
79 79  
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.
137 +[[image:image-20220525110604-2.png]]
84 84  
85 -== Example to join LoRaWAN network ==
139 +== 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 ===
150 +=== 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  
... ... @@ -107,10 +107,8 @@
107 107  
108 108  [[image:image-20220522232916-3.png]]
109 109  
110 -
111 111  [[image:image-20220522232932-4.png]]
112 112  
113 -
114 114  [[image:image-20220522232954-5.png]]
115 115  
116 116  Note: LHT65N use same payload as LHT65.
... ... @@ -123,37 +123,60 @@
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. ===
178 +=== 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]]
182 +[[image:image-20220522233300-8.png||height="219" width="722"]]
131 131  
132 132  
133 -== Uplink Payload: ==
185 +== 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.
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.
136 136  
137 -After each uplink, the (% class="mark" %)BLUE LED(%%) will blink once.
189 +After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
138 138  
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 +)))
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]]
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 +)))
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 ===
231 +=== 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  
... ... @@ -161,37 +161,24 @@
161 161  
162 162  [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
163 163  
164 -[[image:image-20220522234118-10.png]]
239 +[[image:image-20220522234118-10.png||height="353" width="729"]]
165 165  
241 +=== 2.4.2 BAT-Battery Info ===
166 166  
167 -=== BAT-Battery Info ===
168 -
169 169  These two bytes of BAT include the battery state and the actually voltage
170 170  
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
245 +[[image:image-20220523152839-18.png]]
175 175  
176 -00(b): Ultra Low ( BAT <= 2.50v)
247 +[[image:image-20220522235639-1.png||height="139" width="727"]]
177 177  
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 -
187 187  Check the battery voltage for LHT65N.
188 188  
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 ===
254 +=== 2.4.3 Built-in Temperature ===
193 193  
194 -[[image:image-20220522235639-2.png]]
256 +[[image:image-20220522235639-2.png||height="138" width="722"]]
195 195  
196 196  * Temperature:  0x0ABB/100=27.47℃
197 197  
... ... @@ -199,72 +199,92 @@
199 199  
200 200  * Temperature:  (0xF5C6-65536)/100=-26.18℃
201 201  
202 -=== Built-in Humidity ===
264 +=== 2.4.4 Built-in Humidity ===
203 203  
204 -[[image:image-20220522235639-4.png]]
266 +[[image:image-20220522235639-4.png||height="138" width="722"]]
205 205  
206 206  * Humidity:    0x025C/10=60.4%
207 207  
208 -=== Ext # ===
270 +=== 2.4.5 Ext # ===
209 209  
210 210  Bytes for External Sensor:
211 211  
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
274 +[[image:image-20220523152822-17.png]]
216 216  
217 -=== Ext value ===
276 +=== 2.4.6 Ext value ===
218 218  
219 -==== Ext~=1, E3 Temperature Sensor ====
278 +==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
220 220  
221 221  [[image:image-20220522235639-5.png]]
222 222  
223 -
224 224  * DS18B20 temp=0x0ADD/100=27.81℃
225 225  
226 226  The last 2 bytes of data are meaningless
227 227  
228 -
229 -
230 230  [[image:image-20220522235639-6.png]]
231 231  
232 232  * External temperature= (0xF54F-65536)/100=-27.37℃
233 233  
290 +(((
234 234  The last 2 bytes of data are meaningless
292 +)))
235 235  
236 -
294 +(((
237 237  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 +)))
238 238  
239 239  
240 -==== Ext~=9, E3 sensor with Unix Timestamp ====
299 +==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
241 241  
242 242  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:
243 243  
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 +)))
244 244  
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]]
326 +(((
327 +[[Temperature>>||anchor="H2.4.3Built-inTemperature"]]
328 +)))
329 +)))|(% style="width:132px" %)(((
330 +(((
331 +BAT Status &
332 +)))
249 249  
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 +(((
335 +[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
261 261  )))
337 +)))|(% style="width:54px" %)(((
338 +Status & Ext
339 +)))|(% style="width:64px" %)(((
340 +(((
341 +[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
342 +)))
343 +)))
262 262  
263 -* **Battery status & **[[(% class="wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**>>path:#SHT20_Humidity]]
345 +* **Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)**
264 264  
265 -(% style="width:587px" %)
266 -|Bit(bit)|(% style="width:280px" %)[15:14]|(% style="width:136px" %)[11:0]
267 -|Value|(% style="width:280px" %)(((
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" %)(((
268 268  BAT Status
269 269  
270 270  00(b): Ultra Low ( BAT <= 2.50v)
... ... @@ -274,8 +274,8 @@
274 274  10(b): OK   (2.55v <= BAT <=2.65v)
275 275  
276 276  11(b): Good   (BAT >= 2.65v)
277 -)))|(% style="width:136px" %)(((
278 -[[Built-in Humidity>>path:#SHT20_Humidity]]
359 +)))|(% style="width:134px" %)(((
360 +[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
279 279  
280 280  
281 281  )))
... ... @@ -282,29 +282,27 @@
282 282  
283 283  * **Status & Ext Byte**
284 284  
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:
367 +[[image:image-20220523152434-16.png]]
289 289  
290 -0b(1001)
291 -)))
292 -
293 293  * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
294 294  * 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.
295 295  * 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)
296 296  
297 -== Show data on Datacake ==
373 +== 2.5 Show data on Datacake ==
298 298  
299 299  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:
300 300  
301 -
377 +(((
302 302  **Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
379 +)))
303 303  
381 +(((
304 304  **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 +)))
305 305  
306 -
385 +(((
307 307  Add Datacake:
387 +)))
308 308  
309 309  [[image:image-20220523000825-7.png||height="262" width="583"]]
310 310  
... ... @@ -313,21 +313,24 @@
313 313  
314 314  [[image:image-20220523000825-8.png||height="453" width="406"]]
315 315  
316 -
317 317  In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
318 318  
319 319  [[image:image-20220523000825-9.png||height="366" width="392"]]
320 320  
400 +[[image:image-20220523000825-10.png||height="413" width="728"]]
321 321  
402 +== 2.6 Datalog Feature ==
322 322  
323 -[[image:image-20220523000825-10.png||height="432" width="762"]]
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.
324 324  
406 +=== 2.6.1 Ways to get datalog via LoRaWAN ===
325 325  
326 -== Datalog Feature ==
408 +There are two methods:
327 327  
328 -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.
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.
329 329  
330 -=== Unix TimeStamp ===
413 +=== 2.6.2 Unix TimeStamp ===
331 331  
332 332  LHT65N uses Unix TimeStamp format based on
333 333  
... ... @@ -334,100 +334,215 @@
334 334  [[image:image-20220523001219-11.png||height="97" width="627"]]
335 335  
336 336  
420 +(((
337 337  User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
422 +)))
338 338  
424 +(((
339 339  Below is the converter example
426 +)))
340 340  
341 -[[image:image-20220523001219-12.png||height="353" width="853"]]
428 +[[image:image-20220523001219-12.png||height="298" width="720"]]
342 342  
343 343  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
344 344  
432 +=== 2.6.3 Set Device Time ===
345 345  
346 -=== Set Device Time ===
347 -
434 +(((
348 348  There are two ways to set device’s time:
436 +)))
349 349  
438 +(((
350 350  **~1. Through LoRaWAN MAC Command (Default settings)**
440 +)))
351 351  
442 +(((
352 352  User need to set SYNCMOD=1 to enable sync time via MAC command.
444 +)))
353 353  
446 +(((
354 354  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 +)))
355 355  
450 +(((
356 356  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 +)))
357 357  
454 +(((
455 +
456 +)))
358 358  
458 +(((
359 359  **2. Manually Set Time**
460 +)))
360 360  
462 +(((
361 361  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 +)))
362 362  
466 +=== 2.6.4 Poll sensor value ===
363 363  
364 -=== Poll sensor value ===
365 -
366 366  User can poll sensor value based on timestamps from the server. Below is the downlink command.
367 367  
470 +[[image:image-20220523152302-15.png]]
368 368  
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 -
472 +(((
373 373  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 +)))
374 374  
476 +(((
477 +For example, downlink command (% style="display:none" %) (%%)**31 5FC5F350 5FC6 0160 05**
478 +)))
375 375  
376 -For example, downlink command 31 5FC5F350 5FC6 0160 05
377 -
480 +(((
378 378  Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
482 +)))
379 379  
484 +(((
380 380  Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
486 +)))
381 381  
382 382  
383 -=== Datalog Uplink payload ===
489 +=== 2.6.5 Datalog Uplink payload ===
384 384  
385 385  The Datalog poll reply uplink will use below payload format.
386 386  
493 +(((
494 +**Retrieval data payload**
495 +)))
387 387  
388 -Retrieval data payload
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 +)))
389 389  
390 -|**Size(bytes)**|**2**|**2**|**2**|**1**|**4**
391 -|**Value**|[[External sensor data>>path:#Extension_sensor_value]]|(((
392 -[[Built-In>>path:#SHT20_Temperature]]
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 +)))
393 393  
394 -[[Temperature>>path:#SHT20_Temperature]]
395 -)))|(((
396 -[[Built-in>>path:#SHT20_Humidity]]
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 +)))
397 397  
398 -[[Humidity>>path:#SHT20_Humidity]]
399 -)))|[[Poll message flag & Ext>>path:#Poll_EXT]]|(((
400 -[[Unix Time Stamp>>path:#Unix_Time_Stamp]]
401 -
566 +(((
567 +(((
402 402  
403 403  )))
570 +)))
571 +)))
404 404  
405 -Poll message flag & Ext
573 +**Poll message flag & Ext**
406 406  
575 +[[image:image-20220523152208-14.png]]
407 407  
408 -|**Bits**|**7**|**6**|**5**|**4**|**[3:0]**
409 -|**Status & Ext**|Not Defined|Poll Message Flag|Sync time OK|Unix Time Request|(((
410 -Ext:
577 +(((
578 +(((
579 +Poll Message Flag: 1: This message is a poll message reply.
580 +)))
581 +)))
411 411  
412 -0b(1001)
583 +* (((
584 +(((
585 +Poll Message Flag is set to 1.
413 413  )))
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 +)))
414 414  
415 -Poll Message Flag: 1: This message is a poll message reply.
416 -
417 -* Poll Message Flag is set to 1.
418 -* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
419 -
594 +(((
595 +(((
420 420  For example, in US915 band, the max payload for different DR is:
597 +)))
598 +)))
421 421  
422 -a)      DR0: max is 11 bytes so one entry of data
600 +(((
601 +(((
602 +a) DR0: max is 11 bytes so one entry of data
603 +)))
604 +)))
423 423  
424 -b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
606 +(((
607 +(((
608 +b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
609 +)))
610 +)))
425 425  
426 -c)      DR2: total payload includes 11 entries of data
612 +(((
613 +(((
614 +c) DR2: total payload includes 11 entries of data
615 +)))
616 +)))
427 427  
428 -d)      DR3: total payload includes 22 entries of data.
618 +(((
619 +(((
620 +d) DR3: total payload includes 22 entries of data.
621 +)))
622 +)))
429 429  
624 +(((
625 +(((
430 430  If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
627 +)))
628 +)))
431 431  
432 432  
433 433  **Example:**
... ... @@ -434,37 +434,29 @@
434 434  
435 435  If LHT65N has below data inside Flash:
436 436  
437 -Flash Addr   |Unix Time | Ext | BAT voltage|  Value                  
635 +[[image:image-20220523144455-1.png||height="335" width="735"]]
438 438  
439 -80196E0 21/1/19 04:27:03 1 3145 sht_temp=22.00 sht_hum=32.6 ds_temp=327.67
637 +(((
638 +If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
639 +)))
440 440  
441 -80196F0 21/1/19 04:28:57 1 3145 sht_temp=21.90 sht_hum=33.1 ds_temp=327.67
442 -
443 -8019700 21/1/19 04:30:30 1 3145 sht_temp=21.81 sht_hum=33.4 ds_temp=327.67
444 -
445 -8019710 21/1/19 04:40:30 1 3145 sht_temp=21.65 sht_hum=33.7 ds_temp=327.67
446 -
447 -8019720 21/1/19 04:50:30 1 3147 sht_temp=21.55 sht_hum=34.1 ds_temp=327.67
448 -
449 -8019730 21/1/19 05:00:30 1 3149 sht_temp=21.50 sht_hum=34.1 ds_temp=327.67
450 -
451 -8019740 21/1/19 05:10:30 1 3149 sht_temp=21.43 sht_hum=34.6 ds_temp=327.67
452 -
453 -8019750 21/1/19 05:20:30 1 3151 sht_temp=21.35 sht_hum=34.9 ds_temp=327.67
454 -
455 -
456 -If user sends below downlink command:
457 -
458 -3160065F9760066DA705
459 -
641 +(((
460 460   Where : Start time: 60065F97 = time 21/1/19 04:27:03
643 +)))
461 461  
645 +(((
462 462   Stop time 60066DA7= time 21/1/19 05:27:03
647 +)))
463 463  
649 +(((
650 +
651 +)))
464 464  
653 +(((
465 465  LHT65N will uplink this payload.
655 +)))
466 466  
467 -[[image:image-20220523001219-13.png]]
657 +[[image:image-20220523001219-13.png||height="421" width="727"]]
468 468  
469 469  7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
470 470  
... ... @@ -482,49 +482,61 @@
482 482  
483 483  Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
484 484  
675 +== 2.7 Alarm Mode ==
485 485  
486 -== Alarm Mode ==
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.
487 487  
488 -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.
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 +)))
489 489  
683 +**AT Commands for Alarm mode:**
490 490  
491 -Note: Alarm mode will increase a little big the power consumption, we recommend extending the normal reading time when enabling this feature.
492 -
493 -
494 -AT Commands for Alarm mode:
495 -
685 +(% class="box infomessage" %)
686 +(((
687 +(((
496 496  **AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
497 -
498 498  **AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
690 +)))
691 +)))
499 499  
693 +== 2.8 LED Indicator ==
500 500  
501 -
502 -== LED Indicator ==
503 -
695 +(((
504 504  The LHT65N has a triple color LED which for easy shows different stage.
697 +)))
505 505  
699 +(((
506 506  While pressing ACT button, the LED will work as per LED status with ACT button.
701 +)))
507 507  
703 +(((
508 508  In a normal working state:
705 +)))
509 509  
510 -* For each uplink, the BLUE LED or RED LED will blink once.
511 -* BLUE LED when an external sensor is connected
512 -* RED LED when an external sensor is not connected
513 -* For each success downlink, the PURPLE LED will blink once
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 +)))
514 514  
515 515  ----
516 516  
517 -== Installation ==
722 +== 2.9 Installation ==
518 518  
519 519  [[image:image-20220516231650-1.png||height="436" width="428"]]
520 520  
726 += 3. Sensors & Accessories =
521 521  
728 +== 3.1 E3 Temperature Probe ==
522 522  
523 -
524 -= Sensors & Accessories =
525 -
526 -== E3 Temperature Probe ==
527 -
528 528  [[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
529 529  
530 530  
... ... @@ -537,98 +537,117 @@
537 537  * -55°C to 125°C
538 538  * Working voltage 2.35v ~~ 5v
539 539  
540 -= Configure LHT65N via AT Command or LoRaWAN Downlink =
742 += 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
541 541  
744 +(((
542 542  Use can configure LHT65N via AT Command or LoRaWAN Downlink.
746 +)))
543 543  
544 -* AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
545 -* LoRaWAN Downlink instruction for different platforms:
748 +* (((
749 +AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
750 +)))
751 +* (((
752 +LoRaWAN Downlink instruction for different platforms:
753 +)))
546 546  
755 +(((
547 547  [[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 +)))
548 548  
549 -
759 +(((
550 550  There are two kinds of commands to configure LHT65N, they are:
761 +)))
551 551  
552 -* **General Commands**.
763 +(((
764 +(% style="color:#4f81bd" %)* **General Commands**.
765 +)))
553 553  
767 +(((
554 554  These commands are to configure:
769 +)))
555 555  
556 -* General system settings like: uplink interval.
557 -* LoRaWAN protocol & radio-related commands.
771 +* (((
772 +General system settings like: uplink interval.
773 +)))
774 +* (((
775 +LoRaWAN protocol & radio-related commands.
776 +)))
558 558  
778 +(((
559 559  They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
780 +)))
560 560  
782 +(((
561 561  [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
784 +)))
562 562  
786 +(((
787 +(% style="color:#4f81bd" %)* **Commands special design for LHT65N**
788 +)))
563 563  
564 -
565 -* **Commands special design for LHT65N**
566 -
790 +(((
567 567  These commands are only valid for LHT65N, as below:
792 +)))
568 568  
794 +== 4.1 Set Transmit Interval Time ==
569 569  
570 -== Set Transmit Interval Time ==
571 -
572 572  Feature: Change LoRaWAN End Node Transmit Interval.
573 573  
574 574  **AT Command: AT+TDC**
575 575  
576 -|**Command Example**|**Function**|**Response**
577 -|AT+TDC?|Show current transmit Interval|(((
578 -30000
800 +[[image:image-20220523150701-2.png]]
579 579  
580 -OK
581 -
582 -the interval is 30000ms = 30s
802 +(((
803 +**Downlink Command: 0x01**
583 583  )))
584 -|AT+TDC=60000|Set Transmit Interval|(((
585 -OK
586 586  
587 -Set transmit interval to 60000ms = 60 seconds
806 +(((
807 +Format: Command Code (0x01) followed by 3 bytes time value.
588 588  )))
589 589  
590 -
591 -**Downlink Command: 0x01**
592 -
593 -Format: Command Code (0x01) followed by 3 bytes time value.
594 -
810 +(((
595 595  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
812 +)))
596 596  
597 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
598 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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 +)))
599 599  
821 +== 4.2 Set External Sensor Mode ==
600 600  
601 -== Set External Sensor Mode ==
602 -
603 603  Feature: Change External Sensor Mode.
604 604  
605 605  **AT Command: AT+EXT**
606 606  
607 -|**Command Example**|**Function**|**Response**
608 -|AT+EXT?|Get current external sensor mode|(((
609 -1
827 +[[image:image-20220523150759-3.png]]
610 610  
611 -OK
612 -
613 -External Sensor mode =1
829 +(((
830 +**Downlink Command: 0xA2**
614 614  )))
615 -|AT+EXT=1|(% colspan="2" %)Set external sensor mode to 1
616 -|AT+EXT=9|(% colspan="2" %)Set to external DS18B20 with timestamp
617 617  
618 -
619 -**Downlink Command: 0xA2**
620 -
833 +(((
621 621  Total bytes: 2 ~~ 5 bytes
835 +)))
622 622  
623 -Example:
837 +(((
838 +**Example:**
839 +)))
624 624  
625 -* 0xA201: Set external sensor type to E1
626 -* 0xA209: Same as AT+EXT=9
627 -* 0xA20702003c,Same as AT+SETCNT=60
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 +)))
628 628  
851 +== 4.3 Enable/Disable uplink Temperature probe ID ==
629 629  
630 -== Enable/Disable uplink Temperature probe ID ==
631 -
632 632  Feature: If PID is enabled, device will send the temperature probe ID on:
633 633  
634 634  * First Packet after OTAA Join
... ... @@ -636,110 +636,83 @@
636 636  
637 637  PID is default set to disable (0)
638 638  
639 -
640 640  **AT Command:**
641 641  
642 -|**Command Example**|**Function**|**Response**
643 -|AT+PID=1|Enable PID uplink|OK
862 +[[image:image-20220523150928-4.png]]
644 644  
645 -
646 646  **Downlink Command:**
647 647  
648 -* 0xA800     à AT+PID=0
649 -* 0xA801     à AT+PID=1
866 +* 0xA800  **~-~->** AT+PID=0
867 +* 0xA801     **~-~->** AT+PID=1
650 650  
869 +== 4.4 Set Password ==
651 651  
652 -
653 -== Set Password ==
654 -
655 655  Feature: Set device password, max 9 digits
656 656  
657 657  **AT Command: AT+PWORD**
658 658  
659 -|**Command Example**|**Function**|**Response**
660 -|AT+PWORD=?|Show password|(((
661 -123456
875 +[[image:image-20220523151052-5.png]]
662 662  
663 -
664 -OK
877 +(((
878 +**Downlink Command:**
665 665  )))
666 -|AT+PWORD=999999|Set password|OK
667 667  
668 -
669 -**Downlink Command:**
670 -
881 +(((
671 671  No downlink command for this feature.
883 +)))
672 672  
885 +== 4.5 Quit AT Command ==
673 673  
674 -== Quit AT Command ==
675 -
676 676  Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
677 677  
678 678  **AT Command: AT+DISAT**
679 679  
680 -|**Command Example**|**Function**|**Response**
681 -|AT+DISAT|Quit AT Commands mode|OK
891 +[[image:image-20220523151132-6.png]]
682 682  
683 -
684 684  **Downlink Command:**
685 685  
686 686  No downlink command for this feature.
687 687  
897 +== 4.6 Set to sleep mode ==
688 688  
689 -== Set to sleep mode ==
690 -
691 691  Feature: Set device to sleep mode
692 692  
693 693  **AT Command: AT+SLEEP**
694 694  
695 -| | |
696 -|**Command Example**|**Function**|**Response**
697 -|AT+SLEEP|Set to sleep mode|(((
698 -Clear all stored sensor data…
903 +[[image:image-20220523151218-7.png]]
699 699  
700 -OK
701 -)))
702 -
703 -
704 704  **Downlink Command:**
705 705  
706 706  * There is no downlink command to set to Sleep mode.
707 707  
909 +== 4.7 Set system time ==
708 708  
709 -
710 -== Set system time ==
711 -
712 712  Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
713 713  
714 714  **AT Command:**
715 715  
716 -|**Command Example**|**Function**
717 -|AT+TIMESTAMP=1611104352|(((
718 -OK
915 +[[image:image-20220523151253-8.png]]
719 719  
720 -Set System time to 2021-01-20 00:59:12
721 -)))
722 -
723 -
724 724  **Downlink Command:**
725 725  
726 726  0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
727 727  
921 +== 4.8 Set Time Sync Mode ==
728 728  
729 -== Set Time Sync Mode ==
730 -
923 +(((
731 731  Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
925 +)))
732 732  
733 -
927 +(((
734 734  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 +)))
735 735  
736 -
931 +(((
737 737  **AT Command:**
933 +)))
738 738  
739 -|**Command Example**|**Function**
740 -|AT+SYNCMOD=1|Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
935 +[[image:image-20220523151336-9.png]]
741 741  
742 -
743 743  **Downlink Command:**
744 744  
745 745  0x28 01 ~/~/ Same As AT+SYNCMOD=1
... ... @@ -746,202 +746,186 @@
746 746  
747 747  0x28 00 ~/~/ Same As AT+SYNCMOD=0
748 748  
943 +== 4.9 Set Time Sync Interval ==
749 749  
750 -== Set Time Sync Interval ==
751 -
752 752  Feature: Define System time sync interval. SYNCTDC default value: 10 days.
753 753  
754 754  **AT Command:**
755 755  
756 -|**Command Example**|**Function**
757 -|AT+SYNCTDC=0x0A|Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
949 +[[image:image-20220523151411-10.png]]
758 758  
759 -
760 760  **Downlink Command:**
761 761  
762 762  0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
763 763  
955 +== 4.10 Print data entries base on page. ==
764 764  
765 -== Print data entries base on page. ==
766 -
767 767  Feature: Print the sector data from start page to stop page (max is 416 pages).
768 768  
769 769  **AT Command: AT+PDTA**
770 770  
771 -|**Command Example**|**Response**
772 -|(((
773 -AT+PDTA=1,3
961 +[[image:image-20220523151450-11.png]]
774 774  
775 -
776 -
777 -Print page 1 to 3
778 -)))|(((
779 -8019500 19/6/26 16:48 1 2992 sht_temp=28.21 sht_hum=71.5 ds_temp=27.31
780 -
781 -8019510 19/6/26 16:53 1 2994 sht_temp=27.64 sht_hum=69.3 ds_temp=26.93
782 -
783 -8019520 19/6/26 16:58 1 2996 sht_temp=28.39 sht_hum=72.0 ds_temp=27.06
784 -
785 -8019530 19/6/26 17:03 1 2996 sht_temp=27.97 sht_hum=70.4 ds_temp=27.12
786 -
787 -8019540 19/6/26 17:08 1 2996 sht_temp=27.80 sht_hum=72.9 ds_temp=27.06
788 -
789 -8019550 19/6/26 17:13 1 2998 sht_temp=27.30 sht_hum=72.4 ds_temp=26.68
790 -
791 -8019560 19/6/26 17:22 1 2992 sht_temp=26.27 sht_hum=62.3 ds_temp=26.56
792 -
793 -8019570
794 -
795 -8019580
796 -
797 -8019590
798 -
799 -80195A0
800 -
801 -80195B0
802 -
803 -80195C0
804 -
805 -80195D0
806 -
807 -80195E0
808 -
809 -80195F0
810 -
811 -
812 -OK
813 -)))
814 -
815 -
816 816  **Downlink Command:**
817 817  
818 818  No downlink commands for feature
819 819  
967 +== 4.11 Print last few data entries. ==
820 820  
821 -
822 -== Print last few data entries. ==
823 -
824 824  Feature: Print the last few data entries
825 825  
826 826  **AT Command: AT+PLDTA**
827 827  
828 -|**Command Example**|**Response**
829 -|(((
830 -AT+PLDTA=5
973 +[[image:image-20220523151524-12.png]]
831 831  
832 -
833 -
834 -Print last 5 entries
835 -)))|(((
836 -Stop Tx and RTP events when read sensor data
837 -
838 -1 19/6/26 13:59 1 3005 sht_temp=27.09 sht_hum=79.5 ds_temp=26.75
839 -
840 -2 19/6/26 14:04 1 3007 sht_temp=26.65 sht_hum=74.8 ds_temp=26.43
841 -
842 -3 19/6/26 14:09 1 3007 sht_temp=26.91 sht_hum=77.9 ds_temp=26.56
843 -
844 -4 19/6/26 14:15 1 3007 sht_temp=26.93 sht_hum=76.7 ds_temp=26.75
845 -
846 -5 19/6/26 14:20 1 3007 sht_temp=26.78 sht_hum=76.6 ds_temp=26.43
847 -
848 -Start Tx and RTP events
849 -
850 -OK
851 -)))
852 -
853 -
854 854  **Downlink Command:**
855 855  
856 856  No downlink commands for feature
857 857  
979 +== 4.12 Clear Flash Record ==
858 858  
859 -
860 -== Clear Flash Record ==
861 -
862 862  Feature: Clear flash storage for data log feature.
863 863  
864 864  **AT Command: AT+CLRDTA**
865 865  
866 -|**Command Example**|**Function**|**Response**
867 -|AT+CLRDTA|Clear date record|(((
868 -Clear all stored sensor data…
985 +[[image:image-20220523151556-13.png]]
869 869  
870 -OK
871 -)))
872 -
873 -
874 874  **Downlink Command: 0xA3**
875 875  
876 876  * Example: 0xA301 ~/~/Same as AT+CLRDTA
877 877  
991 +== 4.13 Auto Send None-ACK messages ==
878 878  
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.
879 879  
880 880  
881 -= Battery & How to replace =
996 +**AT Command: AT+PNACKMD**
882 882  
883 -== Battery Type ==
998 +The default factory setting is 0
884 884  
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
1003 +
1004 +**Downlink Command: 0x34**
1005 +
1006 +* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1007 +
1008 += 5. Battery & How to replace =
1009 +
1010 +== 5.1 Battery Type ==
1011 +
885 885  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.
886 886  
1014 +(((
887 887  The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
888 888  [[image:image-20220515075034-1.png||height="208" width="644"]]
1017 +)))
889 889  
890 -
1019 +(((
891 891  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
892 892  
1022 +)))
893 893  
894 -== Replace Battery ==
1024 +== 5.2 Replace Battery ==
895 895  
896 896  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.
897 897  
898 898  [[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
899 899  
1030 +== 5.3 Battery Life Analyze ==
900 900  
901 -== Battery Life Analyze ==
902 -
1032 +(((
903 903  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:
904 904  https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
1035 +)))
905 905  
1037 += 6. Order Info =
906 906  
907 -= Order Info =
1039 +(((
1040 +Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
1041 +)))
908 908  
909 -Part Number: (% class="mark" %)**LHT65N-XX**
1043 +(((
1044 +(% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1045 +)))
910 910  
911 -**XX**: The default frequency band
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 +)))
912 912  
913 -* **AS923**: LoRaWAN AS923 band
914 -* **AU915**: LoRaWAN AU915 band
915 -* **EU433**: LoRaWAN EU433 band
916 -* **EU868**: LoRaWAN EU868 band
917 -* **KR920**: LoRaWAN KR920 band
918 -* **US915**: LoRaWAN US915 band
919 -* **IN865**: LoRaWAN IN865 band
920 -* **CN470**: LoRaWAN CN470 band
1072 +(((
1073 +(% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1074 +)))
921 921  
922 -**YY**: Sensor Accessories
1076 +* (((
1077 +(% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1078 +)))
923 923  
924 -* **E3**: External Temperature Probe
1080 += 7. Packing Info =
925 925  
926 -= Packing Info =
927 -
1082 +(((
928 928  **Package Includes**:
1084 +)))
929 929  
930 -* LHT65N Temperature & Humidity Sensor x 1
931 -* Program cable x 1
932 -* Optional external sensor
1086 +* (((
1087 +LHT65N Temperature & Humidity Sensor x 1
1088 +)))
1089 +* (((
1090 +Program cable x 1
1091 +)))
1092 +* (((
1093 +Optional external sensor
1094 +)))
933 933  
1096 +(((
934 934  **Dimension and weight**:
1098 +)))
935 935  
936 -* Device Size:  13.5 x 7 x 3 cm
937 -* Device Weight: 105g
938 -* Package Size / pcs : 14.5 x 8 x 5 cm
939 -* Weight / pcs : 170g
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 +)))
940 940  
941 -= FCC Warning =
1113 += 8. FCC Warning =
942 942  
1115 +(((
943 943  This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1117 +)))
944 944  
945 -(1) This device may not cause harmful interference, and
1119 +(((
1120 +(1) This device may not cause harmful interference；
1121 +)))
946 946  
947 -(2) this device must accept any interference received, including interference that may cause undesired operation
1123 +(((
1124 +(2) this device must accept any interference received, including interference that may cause undesired operation.
1125 +)))
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