Version 98.1 by Xiaoling on 2022/05/25 11:05
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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
12 {{toc/}}
13
14
15
16
17 = 1. Introduction =
18
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 (((
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
29 (((
30 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
31 )))
32
33 (((
34 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
35 )))
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 )))
40
41 (((
42 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
43 )))
44
45 == 1.2 Features ==
46
47 * Wall mountable
48 * LoRaWAN v1.0.3 Class A protocol
49 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
50 * AT Commands to change parameters
51 * Remote configure parameters via LoRaWAN Downlink
52 * Firmware upgradeable via program port
53 * Built-in 2400mAh battery for up to 10 years of use.
54 * Built-in Temperature & Humidity sensor
55 * Optional External Sensors
56 * Tri-color LED to indicate working status
57 * Datalog feature
58
59 == 1.3 Specification ==
60
61 (((
62 **Built-in Temperature Sensor:**
63 )))
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 )))
77
78 (((
79 **Built-in Humidity Sensor:**
80 )))
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 )))
94
95 (((
96 **External Temperature Sensor:**
97 )))
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 )))
111
112 = 2. Connect LHT65N to IoT Server =
113
114 == 2.1 How does LHT65N work? ==
115
116 (((
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
120 (((
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
124 == 2.2 How to Activate LHT65N? ==
125
126 The LHT65N has two working modes:
127
128 * **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
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
131 (((
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
135 [[image:image-20220515123819-1.png||height="379" width="317"]]
136
137 [[image:image-20220523153201-19.png||height="180" width="818"]]
138
139 (% border="1" style="background-color:#ffffcc; color:green; width:878px" %)
140 |=**Behavior on ACT**|=**Function**|=(% style="width: 561px;" %)**Action**
141 |**Pressing ACT between 1s < time < 3s**|Test uplink status|(% style="width:561px" %)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.
142 |**Pressing ACT for more than 3s**|Active Device|(% style="width:561px" %)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.
143 |**Fast press ACT 5 times**|Deactivate Device|(% style="width:561px" %)red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode.
144
145 == 2.3 Example to join LoRaWAN network ==
146
147 (% class="wikigeneratedid" %)
148 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.
149
150 (% class="wikigeneratedid" %)
151 [[image:image-20220522232442-1.png||height="387" width="648"]]
152
153 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:
154
155
156 === 2.3.1 Step 1: Create Device n TTN ===
157
158 Create a device in TTN V3 with the OTAA keys from LHT65N.
159
160 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
161
162 [[image:image-20220522232812-2.png||height="219" width="279"]]
163
164 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
165
166 Add APP EUI in the application.
167
168 [[image:image-20220522232916-3.png]]
169
170 [[image:image-20220522232932-4.png]]
171
172 [[image:image-20220522232954-5.png]]
173
174 Note: LHT65N use same payload as LHT65.
175
176 [[image:image-20220522233026-6.png]]
177
178
179 Input APP EUI,  APP KEY and DEV EUI:
180
181 [[image:image-20220522233118-7.png]]
182
183
184 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
185
186 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.
187
188 [[image:image-20220522233300-8.png||height="219" width="722"]]
189
190
191 == 2.4 Uplink Payload ==
192
193 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
194
195 After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
196
197 (% border="1" style="background-color:#ffffcc; color:green; width:426px" %)
198 |(% style="width:97px" %)(((
199 **Size(bytes)**
200 )))|(% style="width:39px" %)(((
201 **2**
202 )))|(% style="width:100px" %)(((
203 **2**
204 )))|(% style="width:77px" %)(((
205 **2**
206 )))|(% style="width:47px" %)(((
207 **1**
208 )))|(% style="width:51px" %)(((
209 **4**
210 )))
211 |(% style="width:97px" %)(((
212 **Value**
213 )))|(% style="width:39px" %)(((
214 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
215 )))|(% style="width:100px" %)(((
216 (((
217 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
218 )))
219 )))|(% style="width:77px" %)(((
220 (((
221 [[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
222 )))
223
224 (((
225 [[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]]
226 )))
227 )))|(% style="width:47px" %)(((
228 [[Ext>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.5Ext23]] #
229 )))|(% style="width:51px" %)(((
230 [[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]]
231 )))
232
233 * The First 6 bytes: has fix meanings for every LHT65N.
234 * The 7th byte (EXT #): defines the external sensor model.
235 * 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
237 === 2.4.1 Decoder in TTN V3 ===
238
239 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.
240
241 Below is the position to put the decoder and LHT65N decoder can be download from here:
242
243 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
244
245 [[image:image-20220522234118-10.png||height="353" width="729"]]
246
247 === 2.4.2 BAT-Battery Info ===
248
249 These two bytes of BAT include the battery state and the actually voltage
250
251 [[image:image-20220523152839-18.png]]
252
253 [[image:image-20220522235639-1.png||height="139" width="727"]]
254
255 Check the battery voltage for LHT65N.
256
257 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
258 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
259
260 === 2.4.3 Built-in Temperature ===
261
262 [[image:image-20220522235639-2.png||height="138" width="722"]]
263
264 * Temperature:  0x0ABB/100=27.47℃
265
266 [[image:image-20220522235639-3.png]]
267
268 * Temperature:  (0xF5C6-65536)/100=-26.18℃
269
270 === 2.4.4 Built-in Humidity ===
271
272 [[image:image-20220522235639-4.png||height="138" width="722"]]
273
274 * Humidity:    0x025C/10=60.4%
275
276 === 2.4.5 Ext # ===
277
278 Bytes for External Sensor:
279
280 [[image:image-20220523152822-17.png]]
281
282 === 2.4.6 Ext value ===
283
284 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
285
286 [[image:image-20220522235639-5.png]]
287
288 * DS18B20 temp=0x0ADD/100=27.81℃
289
290 The last 2 bytes of data are meaningless
291
292 [[image:image-20220522235639-6.png]]
293
294 * External temperature= (0xF54F-65536)/100=-27.37℃
295
296 (((
297 The last 2 bytes of data are meaningless
298 )))
299
300 (((
301 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
302 )))
303
304
305 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
306
307 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:
308
309 (% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
310 |(% style="width:96px" %)(((
311 **Size(bytes)**
312 )))|(% style="width:71px" %)(((
313 **2**
314 )))|(% style="width:99px" %)(((
315 **2**
316 )))|(% style="width:132px" %)(((
317 **2**
318 )))|(% style="width:54px" %)(((
319 **1**
320 )))|(% style="width:64px" %)(((
321 **4**
322 )))
323 |(% style="width:96px" %)(((
324 **Value**
325 )))|(% style="width:71px" %)(((
326 [[External temperature>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.2SetExternalSensorMode]]
327 )))|(% style="width:99px" %)(((
328 (((
329 [[Built-In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
330 )))
331
332 (((
333 [[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]]
334 )))
335 )))|(% style="width:132px" %)(((
336 (((
337 BAT Status &
338 )))
339
340 (((
341 [[Built-in Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
342 )))
343 )))|(% style="width:54px" %)(((
344 Status & Ext
345 )))|(% style="width:64px" %)(((
346 (((
347 [[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H4.1SetTransmitIntervalTime]]
348 )))
349 )))
350
351 * **Battery status & (% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)Built-in Humidity(%%)**
352
353 (% border="1" style="background-color:#ffffcc; color:green; width:469px" %)
354 |(% style="width:65px" %)Bit(bit)|(% style="width:267px" %)[15:14]|(% style="width:134px" %)[11:0]
355 |(% style="width:65px" %)Value|(% style="width:267px" %)(((
356 BAT Status
357
358 00(b): Ultra Low ( BAT <= 2.50v)
359
360 01(b): Low  (2.50v <=BAT <= 2.55v)
361
362 10(b): OK   (2.55v <= BAT <=2.65v)
363
364 11(b): Good   (BAT >= 2.65v)
365 )))|(% style="width:134px" %)(((
366 [[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]]
367
368
369 )))
370
371 * **Status & Ext Byte**
372
373 [[image:image-20220523152434-16.png]]
374
375 * Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink.
376 * 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.
377 * 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)
378
379 == 2.5 Show data on Datacake ==
380
381 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:
382
383 (((
384 **Step 1**: Be sure that your device is programmed and properly connected to the LoRaWAN network.
385 )))
386
387 (((
388 **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.
389 )))
390
391 (((
392 Add Datacake:
393 )))
394
395 [[image:image-20220523000825-7.png||height="262" width="583"]]
396
397
398 Select default key as Access Key:
399
400 [[image:image-20220523000825-8.png||height="453" width="406"]]
401
402 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
403
404 [[image:image-20220523000825-9.png||height="366" width="392"]]
405
406 [[image:image-20220523000825-10.png||height="413" width="728"]]
407
408 == 2.6 Datalog Feature ==
409
410 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.
411
412 === 2.6.1 Ways to get datalog via LoRaWAN ===
413
414 There are two methods:
415
416 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
417 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.
418
419 === 2.6.2 Unix TimeStamp ===
420
421 LHT65N uses Unix TimeStamp format based on
422
423 [[image:image-20220523001219-11.png||height="97" width="627"]]
424
425
426 (((
427 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
428 )))
429
430 (((
431 Below is the converter example
432 )))
433
434 [[image:image-20220523001219-12.png||height="298" width="720"]]
435
436 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
437
438 === 2.6.3 Set Device Time ===
439
440 (((
441 There are two ways to set device’s time:
442 )))
443
444 (((
445 **~1. Through LoRaWAN MAC Command (Default settings)**
446 )))
447
448 (((
449 User need to set SYNCMOD=1 to enable sync time via MAC command.
450 )))
451
452 (((
453 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).
454 )))
455
456 (((
457 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.
458 )))
459
460 (((
461
462 )))
463
464 (((
465 **2. Manually Set Time**
466 )))
467
468 (((
469 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
470 )))
471
472 === 2.6.4 Poll sensor value ===
473
474 User can poll sensor value based on timestamps from the server. Below is the downlink command.
475
476 [[image:image-20220523152302-15.png]]
477
478 (((
479 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.
480 )))
481
482 (((
483 For example, downlink command (% style="display:none" %) (%%)**31 5FC5F350 5FC6 0160 05**
484 )))
485
486 (((
487 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
488 )))
489
490 (((
491 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
492 )))
493
494
495 === 2.6.5 Datalog Uplink payload ===
496
497 The Datalog poll reply uplink will use below payload format.
498
499 (((
500 **Retrieval data payload**
501 )))
502
503 (% border="1" style="background-color:#ffffcc; color:green; width:510px" %)
504 |(% style="width:93px" %)(((
505 (((
506 **Size(bytes)**
507 )))
508 )))|(% style="width:71px" %)(((
509 (((
510 **2**
511 )))
512 )))|(% style="width:102px" %)(((
513 (((
514 **2**
515 )))
516 )))|(% style="width:86px" %)(((
517 (((
518 **2**
519 )))
520 )))|(% style="width:86px" %)(((
521 (((
522 **1**
523 )))
524 )))|(% style="width:48px" %)(((
525 (((
526 **4**
527 )))
528 )))
529 |(% style="width:93px" %)(((
530 (((
531 **Value**
532 )))
533 )))|(% style="width:71px" %)(((
534 (((
535 [[External sensor data>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.6Extvalue]]
536 )))
537 )))|(% style="width:102px" %)(((
538 (((
539 (((
540 [[Built In>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.3Built-inTemperature]]
541 )))
542 )))
543
544 (((
545 (((
546 [[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]]
547 )))
548 )))
549 )))|(% style="width:86px" %)(((
550 (((
551 (((
552 [[Built-in>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
553 )))
554 )))
555
556 (((
557 (((
558 [[Humidity>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.4.4Built-inHumidity]]
559 )))
560 )))
561 )))|(% style="width:86px" %)(((
562 (((
563 [[Poll message flag & Ext>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.4DatalogUplinkpayload]]
564 )))
565 )))|(% style="width:48px" %)(((
566 (((
567 (((
568 [[Unix Time Stamp>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/#H2.6.1UnixTimeStamp]]
569 )))
570 )))
571
572 (((
573 (((
574
575 )))
576 )))
577 )))
578
579 **Poll message flag & Ext**
580
581 [[image:image-20220523152208-14.png]]
582
583 (((
584 (((
585 Poll Message Flag: 1: This message is a poll message reply.
586 )))
587 )))
588
589 * (((
590 (((
591 Poll Message Flag is set to 1.
592 )))
593 )))
594 * (((
595 (((
596 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
597 )))
598 )))
599
600 (((
601 (((
602 For example, in US915 band, the max payload for different DR is:
603 )))
604 )))
605
606 (((
607 (((
608 a) DR0: max is 11 bytes so one entry of data
609 )))
610 )))
611
612 (((
613 (((
614 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
615 )))
616 )))
617
618 (((
619 (((
620 c) DR2: total payload includes 11 entries of data
621 )))
622 )))
623
624 (((
625 (((
626 d) DR3: total payload includes 22 entries of data.
627 )))
628 )))
629
630 (((
631 (((
632 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
633 )))
634 )))
635
636
637 **Example:**
638
639 If LHT65N has below data inside Flash:
640
641 [[image:image-20220523144455-1.png||height="335" width="735"]]
642
643 (((
644 If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
645 )))
646
647 (((
648 Where : Start time: 60065F97 = time 21/1/19 04:27:03
649 )))
650
651 (((
652 Stop time 60066DA7= time 21/1/19 05:27:03
653 )))
654
655 (((
656
657 )))
658
659 (((
660 LHT65N will uplink this payload.
661 )))
662
663 [[image:image-20220523001219-13.png||height="421" width="727"]]
664
665 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
666
667 Where the first 11 bytes is for the first entry:
668
669 7FFF089801464160065F97
670
671 Ext sensor data=0x7FFF/100=327.67
672
673 Temp=0x0898/100=22.00
674
675 Hum=0x0146/10=32.6
676
677 poll message flag & Ext=0x41,means reply data,Ext=1
678
679 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
680
681 == 2.7 Alarm Mode ==
682
683 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.
684
685 (((
686 (% 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.
687 )))
688
689 (((
690 **AT Commands for Alarm mode:**
691 )))
692
693 (% class="box infomessage" %)
694 (((
695 (((
696 **AT+WMOD=1**: Enable/Disable Alarm Mode. (0:Disable, 1: Enable)
697 )))
698 )))
699
700 (% class="box infomessage" %)
701 (((
702 (((
703 **AT+CITEMP=1**: The interval to check the temperature for Alarm. (Unit: minute)
704 )))
705 )))
706
707 == 2.8 LED Indicator ==
708
709 (((
710 The LHT65N has a triple color LED which for easy shows different stage.
711 )))
712
713 (((
714 While pressing ACT button, the LED will work as per LED status with ACT button.
715 )))
716
717 (((
718 In a normal working state:
719 )))
720
721 * (((
722 For each uplink, the BLUE LED or RED LED will blink once.
723 )))
724 * (((
725 BLUE LED when an external sensor is connected
726 )))
727 * (((
728 RED LED when an external sensor is not connected
729 )))
730 * (((
731 For each success downlink, the PURPLE LED will blink once
732 )))
733
734 ----
735
736 == 2.9 Installation ==
737
738 [[image:image-20220516231650-1.png||height="436" width="428"]]
739
740 = 3. Sensors & Accessories =
741
742 == 3.1 E3 Temperature Probe ==
743
744 [[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]]
745
746
747 With Temperature sensor with 2 meters cable long
748
749 * Resolution: 0.0625 °C
750 * ±0.5°C accuracy from -10°C to +85°C
751 * ±2°C accuracy from -55°C to +125°C
752 * Operating Range: -40 ~~ 125 °C
753 * -55°C to 125°C
754 * Working voltage 2.35v ~~ 5v
755
756 = 4. Configure LHT65N via AT Command or LoRaWAN Downlink =
757
758 (((
759 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
760 )))
761
762 * (((
763 AT Command Connection: See [[FAQ>>path:#AT_COMMAND]].
764 )))
765 * (((
766 LoRaWAN Downlink instruction for different platforms:
767 )))
768
769 (((
770 [[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]]
771 )))
772
773 (((
774 There are two kinds of commands to configure LHT65N, they are:
775 )))
776
777 (((
778 (% style="color:#4f81bd" %)* **General Commands**.
779 )))
780
781 (((
782 These commands are to configure:
783 )))
784
785 * (((
786 General system settings like: uplink interval.
787 )))
788 * (((
789 LoRaWAN protocol & radio-related commands.
790 )))
791
792 (((
793 They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki:
794 )))
795
796 (((
797 [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]
798 )))
799
800 (((
801 (% style="color:#4f81bd" %)* **Commands special design for LHT65N**
802 )))
803
804 (((
805 These commands are only valid for LHT65N, as below:
806 )))
807
808 == 4.1 Set Transmit Interval Time ==
809
810 Feature: Change LoRaWAN End Node Transmit Interval.
811
812 **AT Command: AT+TDC**
813
814 [[image:image-20220523150701-2.png]]
815
816 (((
817 **Downlink Command: 0x01**
818 )))
819
820 (((
821 Format: Command Code (0x01) followed by 3 bytes time value.
822 )))
823
824 (((
825 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
826 )))
827
828 * (((
829 **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
830 )))
831 * (((
832 **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
833 )))
834
835 == 4.2 Set External Sensor Mode ==
836
837 Feature: Change External Sensor Mode.
838
839 **AT Command: AT+EXT**
840
841 [[image:image-20220523150759-3.png]]
842
843 (((
844 **Downlink Command: 0xA2**
845 )))
846
847 (((
848 Total bytes: 2 ~~ 5 bytes
849 )))
850
851 (((
852 **Example:**
853 )))
854
855 * (((
856 0xA201: Set external sensor type to E1
857 )))
858 * (((
859 0xA209: Same as AT+EXT=9
860 )))
861 * (((
862 0xA20702003c,Same as AT+SETCNT=60
863 )))
864
865 == 4.3 Enable/Disable uplink Temperature probe ID ==
866
867 Feature: If PID is enabled, device will send the temperature probe ID on:
868
869 * First Packet after OTAA Join
870 * Every 24 hours since the first packet.
871
872 PID is default set to disable (0)
873
874 **AT Command:**
875
876 [[image:image-20220523150928-4.png]]
877
878 **Downlink Command:**
879
880 * 0xA800  **~-~->** AT+PID=0
881 * 0xA801     **~-~->** AT+PID=1
882
883 == 4.4 Set Password ==
884
885 Feature: Set device password, max 9 digits
886
887 **AT Command: AT+PWORD**
888
889 [[image:image-20220523151052-5.png]]
890
891 (((
892 **Downlink Command:**
893 )))
894
895 (((
896 No downlink command for this feature.
897 )))
898
899 == 4.5 Quit AT Command ==
900
901 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
902
903 **AT Command: AT+DISAT**
904
905 [[image:image-20220523151132-6.png]]
906
907 **Downlink Command:**
908
909 No downlink command for this feature.
910
911 == 4.6 Set to sleep mode ==
912
913 Feature: Set device to sleep mode
914
915 **AT Command: AT+SLEEP**
916
917 [[image:image-20220523151218-7.png]]
918
919 **Downlink Command:**
920
921 * There is no downlink command to set to Sleep mode.
922
923 == 4.7 Set system time ==
924
925 Feature: Set system time, unix format. [[See here for format detail.>>path:#TimeStamp]]
926
927 **AT Command:**
928
929 [[image:image-20220523151253-8.png]]
930
931 **Downlink Command:**
932
933 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
934
935 == 4.8 Set Time Sync Mode ==
936
937 (((
938 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
939 )))
940
941 (((
942 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.
943 )))
944
945 (((
946 **AT Command:**
947 )))
948
949 [[image:image-20220523151336-9.png]]
950
951 **Downlink Command:**
952
953 0x28 01 ~/~/ Same As AT+SYNCMOD=1
954
955 0x28 00 ~/~/ Same As AT+SYNCMOD=0
956
957 == 4.9 Set Time Sync Interval ==
958
959 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
960
961 **AT Command:**
962
963 [[image:image-20220523151411-10.png]]
964
965 **Downlink Command:**
966
967 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
968
969 == 4.10 Print data entries base on page. ==
970
971 Feature: Print the sector data from start page to stop page (max is 416 pages).
972
973 **AT Command: AT+PDTA**
974
975 [[image:image-20220523151450-11.png]]
976
977 **Downlink Command:**
978
979 No downlink commands for feature
980
981 == 4.11 Print last few data entries. ==
982
983 Feature: Print the last few data entries
984
985 **AT Command: AT+PLDTA**
986
987 [[image:image-20220523151524-12.png]]
988
989 **Downlink Command:**
990
991 No downlink commands for feature
992
993 == 4.12 Clear Flash Record ==
994
995 Feature: Clear flash storage for data log feature.
996
997 **AT Command: AT+CLRDTA**
998
999 [[image:image-20220523151556-13.png]]
1000
1001 **Downlink Command: 0xA3**
1002
1003 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1004
1005 == 4.13 Auto Send None-ACK messages ==
1006
1007 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.
1008
1009
1010 **AT Command: AT+PNACKMD**
1011
1012 The default factory setting is 0
1013
1014 |**Command Example**|**Function**|**Response**
1015 |AT+PNACKMD=1|Poll None-ACK message|OK
1016
1017 **Downlink Command: 0x34**
1018
1019 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1020
1021 = 5. Battery & How to replace =
1022
1023 == 5.1 Battery Type ==
1024
1025 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.
1026
1027 (((
1028 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1029 [[image:image-20220515075034-1.png||height="208" width="644"]]
1030 )))
1031
1032 (((
1033 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1034
1035 )))
1036
1037 == 5.2 Replace Battery ==
1038
1039 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.
1040
1041 [[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]]
1042
1043 == 5.3 Battery Life Analyze ==
1044
1045 (((
1046 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:
1047 https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf
1048 )))
1049
1050 = 6. Order Info =
1051
1052 (((
1053 Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
1054 )))
1055
1056 (((
1057 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1058 )))
1059
1060 * (((
1061 (% style="color:#4f81bd" %)** AS923**(%%): LoRaWAN AS923 band
1062 )))
1063 * (((
1064 (% style="color:#4f81bd" %)** AU915**(%%): LoRaWAN AU915 band
1065 )))
1066 * (((
1067 (% style="color:#4f81bd" %)** EU433**(%%): LoRaWAN EU433 band
1068 )))
1069 * (((
1070 (% style="color:#4f81bd" %)** EU868**(%%): LoRaWAN EU868 band
1071 )))
1072 * (((
1073 (% style="color:#4f81bd" %)** KR920**(%%): LoRaWAN KR920 band
1074 )))
1075 * (((
1076 (% style="color:#4f81bd" %)** US915**(%%): LoRaWAN US915 band
1077 )))
1078 * (((
1079 (% style="color:#4f81bd" %)** IN865**(%%): LoRaWAN IN865 band
1080 )))
1081 * (((
1082 (% style="color:#4f81bd" %)** CN470**(%%): LoRaWAN CN470 band
1083 )))
1084
1085 (((
1086 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1087 )))
1088
1089 * (((
1090 (% style="color:#4f81bd" %)**E3**(%%): External Temperature Probe
1091 )))
1092
1093 = 7. Packing Info =
1094
1095 (((
1096 **Package Includes**:
1097 )))
1098
1099 * (((
1100 LHT65N Temperature & Humidity Sensor x 1
1101 )))
1102 * (((
1103 Program cable x 1
1104 )))
1105 * (((
1106 Optional external sensor
1107 )))
1108
1109 (((
1110 **Dimension and weight**:
1111 )))
1112
1113 * (((
1114 Device Size:  13.5 x 7 x 3 cm
1115 )))
1116 * (((
1117 Device Weight: 105g
1118 )))
1119 * (((
1120 Package Size / pcs : 14.5 x 8 x 5 cm
1121 )))
1122 * (((
1123 Weight / pcs : 170g
1124 )))
1125
1126 = 8. FCC Warning =
1127
1128 (((
1129 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1130 )))
1131
1132 (((
1133 (1) This device may not cause harmful interference；
1134 )))
1135
1136 (((
1137 (2) this device must accept any interference received, including interference that may cause undesired operation.
1138 )))

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