Version 242.1 by Bei Jinggeng on 2022/12/24 16:30
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2 [[image:image-20221206143242-2.png||height="602" width="551"]]
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12 **Table of Contents：**
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14 {{toc/}}
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23
24 = 1. Introduction =
25
26 == 1.1 What is LHT65N-E5 Temperature,Humidity&Illuminance Sensor ==
27
28
29 (((
30 The Dragino (% style="color:blue" %)**LHT65N-E5 Temperature, Humidity & Illuminance sensor**(%%) is a Long Range LoRaWAN Sensor.It includes a (% style="color:blue" %)**built-in Temperature & Humidity sensor**(%%) and has an (% style="color:blue" %)**external Illuminance **(%%)** (% style="color:blue" %)sensor(%%).**
31
32 The LHT65N-E5 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.
33
34 LHT65N-E5 has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) which can be used for more than 10 years*.
35
36 LHT65N-E5 is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
37
38 (% style="color:blue" %)*(%%)** **The actual battery life depends on how often to send data, please see battery analyzer chapter.
39 )))
40
41 (% style="display:none" %) (%%)
42
43 == 1.2 Features ==
44
45
46 * Wall mountable
47 * LoRaWAN v1.0.3 Class A protocol
48 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
49 * AT Commands to change parameters
50 * Remote configure parameters via LoRaWAN Downlink
51 * Firmware upgradeable via program port
52 * Built-in 2400mAh battery for up to 10 years of use.
53 * Built-in Temperature & Humidity sensor
54 * External Illuminance Sensor
55 * Tri-color LED to indicate working status
56 * Datalog feature to save sensor data when no LoRaWAN network
57
58 (% style="display:none" %)
59
60
61
62 == 1.3 Specification ==
63
64
65 (% style="color:#037691" %)**Built-in Temperature Sensor:**
66
67 * Resolution: 0.01 °C
68 * Accuracy Tolerance : Typ ±0.3 °C
69 * Long Term Drift: < 0.02 °C/yr
70 * Operating Range: -40 ~~ 85 °C
71
72 (% style="color:#037691" %)**Built-in Humidity Sensor:**
73
74 * Resolution: 0.04 %RH
75 * Accuracy Tolerance : Typ ±3 %RH
76 * Long Term Drift: < 0.02 °C/yr
77 * Operating Range: 0 ~~ 96 %RH
78
79 (% style="color:#037691" %)**External IIIuminace Sensor:**
80
81 * Base on BH1750 Illumination Sensor
82 * Cable Length : 50cm
83 * Resolution: 1 lx
84 * Range: 0-65535 lx
85 * Operating Range: -40 °C ~~ 85 °C
86
87 = 2. Connect LHT65N-E5 to IoT Server =
88
89 == 2.1 How does LHT65N-E5 work? ==
90
91
92 (((
93 LHT65N-E5 is configured as LoRaWAN OTAA Class A sensor by default. Each LHT65N-E5 is shipped with a worldwide unique set of OTAA keys. To use LHT65N-E5 in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N-E5.
94 )))
95
96 (((
97 If LHT65N-E5 is within the coverage of this LoRaWAN network. LHT65N-E5 can join the LoRaWAN network automatically. After successfully joining, LHT65N-E5 will start to measure environment temperature, humidity & illumination, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
98 )))
99
100
101 == 2.2 How to Activate LHT65N-E5? ==
102
103
104 (((
105 The LHT65N-E5 has two working modes:
106 )))
107
108 * (((
109 (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N-E5 doesn't have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
110 )))
111 * (((
112 (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N-E5 works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N-E5 will be in STOP mode (IDLE mode), in STOP mode, LHT65N-E5 has the same power consumption as Deep Sleep mode. 
113 )))
114
115 (((
116 The LHT65N-E5 is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
117 )))
118
119
120 [[image:image-20220515123819-1.png||_mstalt="430742" height="379" width="317"]]
121
122 [[image:image-20220525110604-2.png||_mstalt="427531"]]
123
124
125 == 2.3 Example to join LoRaWAN network ==
126
127
128 (% class="wikigeneratedid" %)
129 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.
130
131
132 (% class="wikigeneratedid" %)
133 [[image:image-20221224101636-1.png||height="435" width="715"]]
134
135
136 (((
137 Assume the LPS8v2 is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N-E5. Next we need to add the LHT65N-E5 device in TTN V3:
138 )))
139
140
141 === 2.3.1 Step 1: Create Device n TTN ===
142
143
144 (((
145 Create a device in TTN V3 with the OTAA keys from LHT65N-E5.
146 )))
147
148 (((
149 Each LHT65N-E5 is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
150 )))
151
152 [[image:image-20220617150003-1.jpeg||_mstalt="5426434"]]
153
154 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
155
156 Add APP EUI in the application.
157
158
159 [[image:image-20220522232916-3.png||_mstalt="430495"]]
160
161
162 [[image:image-20220522232932-4.png||_mstalt="430157"]]
163
164
165 [[image:image-20220522232954-5.png||_mstalt="431847"]]
166
167
168
169 (% style="color:red" %)**Note: LHT65N-E5 use same payload decoder as LHT65.**
170
171
172 [[image:image-20220522233026-6.png||_mstalt="429403"]]
173
174
175 Input APP EUI,  APP KEY and DEV EUI:
176
177
178 [[image:image-20220522233118-7.png||_mstalt="430430"]]
179
180
181 === 2.3.2 Step 2: Activate LHT65N-E5 by pressing the ACT button for more than 5 seconds. ===
182
183
184 (((
185 Use ACT button to activate LHT65N-E5 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.
186 )))
187
188 [[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
189
190
191 == 2.4 Uplink Payload   ( Fport~=2) ==
192
193
194 (((
195 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
196 )))
197
198 (((
199 After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
200 )))
201
202 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:390px" %)
203 |=(% style="width: 60px;" %)(((
204 **Size(bytes)**
205 )))|=(% style="width: 30px;" %)(((
206 **2**
207 )))|=(% style="width: 100px;" %)(((
208 **2**
209 )))|=(% style="width: 100px;" %)(((
210 **2**
211 )))|=(% style="width: 50px;" %)(((
212 **1**
213 )))|=(% style="width: 50px;" %)(((
214 **4**
215 )))
216 |(% style="width:97px" %)(((
217 **Value**
218 )))|(% style="width:39px" %)(((
219 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
220 )))|(% style="width:100px" %)(((
221 (((
222 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
223 )))
224 )))|(% style="width:77px" %)(((
225 (((
226 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
227 )))
228 )))|(% style="width:47px" %)(((
229 [[Ext>>||anchor="H2.4.5Ext23"]] #
230 )))|(% style="width:51px" %)(((
231 [[Ext value>>||anchor="H2.4.6Extvalue"]]
232 )))
233
234 * The First 6 bytes: has fix meanings for every LHT65N-E5.
235 * The 7th byte (EXT #): defines the external sensor model. It can be 0x05 or 0x09 for LHT65N-E5
236 * The 8^^th^^ ~~ 9^^th^^ byte: Illuminance. Range: 0-65535 lx.
237 * The 10th ~~ 11th byte: Reserve, always 0xFFFF
238
239 === 2.4.1 Decoder in TTN V3 ===
240
241
242 When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N-E5 decoder in TTNv3 for friendly reading.
243
244 Below is the position to put the decoder and LHT65N-E5 decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
245
246
247 [[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
248
249
250 === 2.4.2 BAT-Battery Info ===
251
252
253 These two bytes of BAT include the battery state and the actually voltage
254
255 [[image:image-20220523152839-18.png||_mstalt="457613"]]
256
257
258 [[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
259
260
261 Check the battery voltage for LHT65N-E5.
262
263 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
264 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
265
266 === 2.4.3 Built-in Temperature ===
267
268
269 [[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
270
271 * Temperature:  0x0ABB/100=27.47℃
272
273 [[image:image-20220522235639-3.png||_mstalt="432120"]]
274
275 * Temperature:  (0xF5C6-65536)/100=-26.18℃
276
277 === 2.4.4 Built-in Humidity ===
278
279
280 [[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
281
282 * Humidity:    0x025C/10=60.4%
283
284 === ===
285
286
287 === 2.4.5 Ext value ===
288
289 ==== 2.4.5.1 Ext~=0x05, Illuminance Sensor ====
290
291 [[image:image-20221224161634-2.png||height="138" width="851"]]
292
293
294 * Illumination=0x005E=94 lux
295
296 The last 2 bytes of data are meaningless
297
298 [[image:image-20221224161725-3.png]]
299
300 * When the sensor is not connected or not connected properly, will show "NULL"
301
302 The last 2 bytes of data are meaningless
303
304
305
306 ==== 2.4.5.2 Ext~=0x85, E5 sensor with Unix Timestamp ====
307
308
309 (((
310 Timestamp mode is designed for LHT65N-E5 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:
311 )))
312
313 (((
314
315 )))
316
317 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:535px" %)
318 |=(% style="width: 88px;" %)(((
319 **Size(bytes)**
320 )))|=(% style="width: 93px;" %)(((
321 **2**
322 )))|=(% style="width: 94px;" %)(((
323 **2**
324 )))|=(% style="width: 117px;" %)(((
325 **2**
326 )))|=(% style="width: 54px;" %)(((
327 **1**
328 )))|=(% style="width: 79px;" %)(((
329 **4**
330 )))
331 |(% style="width:88px" %)(((
332 **Value**
333 )))|(% style="width:93px" %)(((
334 [[External temperature>>||anchor="H4.2SetExternalSensorMode"]]
335 )))|(% style="width:94px" %)(((
336 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
337 )))|(% style="width:117px" %)(((
338 BAT Status &
339 Illumination
340 )))|(% style="width:54px" %)(((
341 Status & Ext
342 )))|(% style="width:79px" %)(((
343 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
344 )))
345
346 * **Battery status & Built-in Humidity**
347
348 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:461px" %)
349 |=(% style="width: 67px;" %)Bit(bit)|=(% style="width: 256px;" %)[15:14]|=(% style="width: 132px;" %)[11:0]
350 |(% style="width:67px" %)Value|(% style="width:256px" %)(((
351 BAT Status
352 00(b): Ultra Low ( BAT <= 2.50v)
353 01(b): Low  (2.50v <=BAT <= 2.55v)
354 10(b): OK   (2.55v <= BAT <=2.65v)
355 11(b): Good   (BAT >= 2.65v)
356 )))|(% style="width:132px" %)(((
357 Illumination
358 )))
359
360 * **Status & Ext Byte**
361
362 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %)
363 |=(% scope="row" style="width: 60px;" %)**Bits**|(% style="width:90px" %)**7**|(% style="width:100px" %)**6**|(% style="width:90px" %)**5**|(% style="width:100px" %)**4**|(% style="width:60px" %)**[3:0]**
364 |=(% style="width: 96px;" %)**Status&Ext**|(% style="width:124px" %)None-ACK Flag|(% style="width:146px" %)Poll Message FLAG|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001)
365
366 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
367 * (% style="color:blue" %)**Sync time OK**: (%%) 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N-E5 will set this bit to 0 until got the time stamp from the application server.
368 * (% style="color:blue" %)**Unix Time Request**:(%%)  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N-E5 will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
369
370 (% class="wikigeneratedid" %)
371 === ===
372
373 == 2.5 Show data on Datacake ==
374
375
376 (((
377 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:
378 )))
379
380 (((
381
382 )))
383
384 (((
385 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
386 )))
387
388 (((
389 (% style="color:blue" %)**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.
390 )))
391
392
393
394 (((
395 Add Datacake:
396 )))
397
398
399 [[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
400
401
402
403 Select default key as Access Key:
404
405
406 [[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
407
408
409 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
410
411
412 [[image:image-20221224161935-5.png||height="523" width="409"]]
413
414
415 [[image:image-20221224161957-6.png||height="306" width="852"]]
416
417
418
419 == 2.6 Datalog Feature ==
420
421
422 (((
423 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-E5 will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N-E5.
424 )))
425
426
427 === 2.6.1 Ways to get datalog via LoRaWAN ===
428
429
430 There are two methods:
431
432 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
433
434
435 (% style="color:blue" %)**Method 2: **(%%)Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N-E5 will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N-E5 will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
436
437
438 (% style="color:red" %)**Note for method 2:**
439
440 * a) LHT65N-E5 will do an ACK check for data records sending to make sure every data arrive server.
441 * b) LHT65N-E5 will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65N-E5 won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LHT65N-E5 gets a ACK, LHT65N-E5 will consider there is a network connection and resend all NONE-ACK Message.
442
443 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
444
445
446 [[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]
447
448
449 === 2.6.2 Unix TimeStamp ===
450
451
452 LHT65N-E5 uses Unix TimeStamp format based on
453
454
455 [[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
456
457
458
459 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
460
461 Below is the converter example
462
463 [[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
464
465
466 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
467
468
469 === 2.6.3 Set Device Time ===
470
471
472 (((
473 (% style="color:blue" %)**There are two ways to set device's time:**
474 )))
475
476 (((
477 **1.  Through LoRaWAN MAC Command (Default settings)**
478 )))
479
480 (((
481 User need to set SYNCMOD=1 to enable sync time via MAC command.
482 )))
483
484 (((
485 Once LHT65N-E5 Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N-E5. If LHT65N-E5 fails to get the time from the server, LHT65N-E5 will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
486 )))
487
488 (((
489 (% style="color:red" %)**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.**
490 )))
491
492
493 (((
494 **2. Manually Set Time**
495 )))
496
497 (((
498 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
499 )))
500
501
502 === 2.6.4 Poll sensor value ===
503
504
505 User can poll sensor value based on timestamps from the server. Below is the downlink command.
506
507 [[image:image-20220523152302-15.png||_mstalt="451581"]]
508
509
510 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.
511
512 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)
513
514 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
515
516 Uplink Internal =5s，means LHT65N-E5 will send one packet every 5s. range 5~~255s.
517
518
519 === 2.6.5 Datalog Uplink payload ===
520
521
522 The Datalog poll reply uplink will use below payload format.
523
524 **Retrieval data payload:**
525
526 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:480px" %)
527 |=(% style="width: 60px;" %)(((
528 **Size(bytes)**
529 )))|=(% style="width: 90px;" %)**2**|=(% style="width: 90px;" %)**2**|=(% style="width: 70px;" %)**2**|=(% style="width: 100px;" %)**1**|=(% style="width: 70px;" %)**4**
530 |(% style="width:97px" %)**Value**|(% style="width:123px" %)[[External sensor data>>||anchor="H2.4.6Extvalue"]]|(% style="width:108px" %)[[Built In Temperature>>||anchor="H2.4.3Built-inTemperature"]]|(% style="width:133px" %)[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]|(% style="width:159px" %)Poll message flag & Ext|(% style="width:80px" %)[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
531
532 **Poll message flag & Ext:**
533
534 [[image:image-20221006192726-1.png||_mstalt="430508" height="112" width="754"]]
535
536 (% style="color:blue" %)**No ACK Message**(%%):  1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
537
538 (% style="color:blue" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
539
540 * Poll Message Flag is set to 1.
541
542 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
543
544 For example, in US915 band, the max payload for different DR is:
545
546 (% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data
547
548 (% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
549
550 (% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data
551
552 (% style="color:blue" %)**d) DR3: **(%%)total payload includes 22 entries of data.
553
554 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
555
556
557 **Example:**
558
559 If LHT65N-E5 has below data inside Flash:
560
561 [[image:image-20220523144455-1.png||_mstalt="430040" height="335" width="735"]]
562
563
564 If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
565
566 Where : Start time: 60065F97 = time 21/1/19 04:27:03
567
568 Stop time: 60066DA7= time 21/1/19 05:27:03
569
570
571 **LHT65N-E5 will uplink this payload.**
572
573 [[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]
574
575
576 __**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
577
578 Where the first 11 bytes is for the first entry:
579
580 7FFF089801464160065F97
581
582 Ext sensor data=0x7FFF/100=327.67
583
584 Temp=0x088E/100=22.00
585
586 Hum=0x014B/10=32.6
587
588 poll message flag & Ext=0x41,means reply data,Ext=1
589
590 Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
591
592
593 == 2.7 Alarm Mode ==
594
595 (((
596 when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately.
597 )))
598
599 (((
600 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
601 )))
602
603 === 2.7.1 ALARM MODE ===
604
605
606 (% class="box infomessage" %)
607 (((
608 (((
609 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
610 )))
611
612 (((
613 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
614 )))
615
616 (((
617 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
618 )))
619
620 (((
621 (% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
622 )))
623
624 (((
625 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
626 )))
627 )))
628
629 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
630
631 Total bytes: 8 bytes
632
633 **Example:**AA0100010001003C
634
635 WMOD=01
636
637 CITEMP=0001
638
639 TEMPlow=0001
640
641 TEMPhigh=003C
642
643
644 == 2.8 LED Indicator ==
645
646
647 The LHT65 has a triple color LED which for easy showing different stage .
648
649 While user press ACT button, the LED will work as per LED status with ACT button.
650
651 In a normal working state:
652
653 * For each uplink, the BLUE LED or RED LED will blink once.
654 BLUE LED when external sensor is connected.
655 * RED LED when external sensor is not connected
656 * For each success downlink, the PURPLE LED will blink once
657
658 == 2.9 installation ==
659
660
661 [[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
662
663
664 = 3. Sensors and Accessories =
665
666 == 3.1 E2 Extension Cable ==
667
668
669 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
670
671
672 **1m long breakout cable for LHT65N-E5. Features:**
673
674 * (((
675 Use for AT Command
676 )))
677 * (((
678 Update firmware for LHT65N-E5
679 )))
680 * (((
681 Exposed All pins from the LHT65N Type-C connector.
682
683
684
685 )))
686
687 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
688
689
690
691 = 4. Configure LHT65N-E5 via AT command or LoRaWAN downlink =
692
693
694 (((
695 Use can configure LHT65N-E5 via AT Command or LoRaWAN Downlink.
696 )))
697
698 * (((
699 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
700 )))
701
702 * (((
703 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
704 )))
705
706 (((
707 There are two kinds of commands to configure LHT65N-E5, they are:
708 )))
709
710 * (((
711 (% style="color:#4f81bd" %)**General Commands**.
712 )))
713
714 (((
715 These commands are to configure:
716 )))
717
718 1. (((
719 General system settings like: uplink interval.
720 )))
721 1. (((
722 LoRaWAN protocol & radio-related commands.
723 )))
724
725 (((
726 They are the same for all Dragino Devices which supports DLWS-005 LoRaWAN Stack(Note~*~*). These commands can be found on the wiki: [[End Device Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
727 )))
728
729 * (((
730 (% style="color:#4f81bd" %)**Commands special design for LHT65N-E5**
731 )))
732
733 (((
734 These commands are only valid for LHT65N-E5, as below:
735 )))
736
737
738 == 4.1 Set Transmit Interval Time ==
739
740
741 Feature: Change LoRaWAN End Node Transmit Interval.
742
743
744 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
745
746 [[image:image-20220523150701-2.png||_mstalt="427453"]]
747
748
749 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
750
751 Format: Command Code (0x01) followed by 3 bytes time value.
752
753 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
754
755 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
756
757 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
758
759 == 4.2 Currently only supports E5 ==
760
761
762 Feature: Set device password, max 9 digits
763
764
765 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
766
767 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
768 |Command Example|Function|Response
769 |AT+EXT=?|Get or Set external sensor model|(((
770 5
771
772 OK
773 )))
774 |AT+EXT=5|(% colspan="2" %)Set external sensor mode to 5
775
776
777 (% style="color:#4f81bd" %)**Downlink Command:0xA2**
778
779
780 Total bytes: 2 bytes
781
782 **Example:**
783
784 * 0xA205: Set external sensor type to E5
785
786
787
788 == 4.3 Set to sleep mode ==
789
790
791 Feature: Set device to sleep mode
792
793 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
794 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
795
796 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
797
798 [[image:image-20220523151218-7.png||_mstalt="430703"]]
799
800
801 (% style="color:#4f81bd" %)**Downlink Command:**
802
803 * There is no downlink command to set to Sleep mode.
804
805 == 4.4 Set system time ==
806
807
808 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
809
810
811 (% style="color:#4f81bd" %)**AT Command:**
812
813 [[image:image-20220523151253-8.png||_mstalt="430677"]]
814
815
816 (% style="color:#4f81bd" %)**Downlink Command:**
817
818 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
819
820
821 == 4.5 Set Time Sync Mode ==
822
823
824 (((
825 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
826 )))
827
828 (((
829 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.
830
831
832 )))
833
834 (% style="color:#4f81bd" %)**AT Command:**
835
836 [[image:image-20220523151336-9.png||_mstalt="431717"]]
837
838
839 (% style="color:#4f81bd" %)**Downlink Command:**
840
841 0x28 01  ~/~/  Same As AT+SYNCMOD=1
842 0x28 00  ~/~/  Same As AT+SYNCMOD=0
843
844
845 == 4.6 Set Time Sync Interval ==
846
847
848 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
849
850
851 (% style="color:#4f81bd" %)**AT Command:**
852
853 [[image:image-20220523151411-10.png||_mstalt="449696"]]
854
855
856 (% style="color:#4f81bd" %)**Downlink Command:**
857
858 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
859
860
861 == 4.7 Print data entries base on page. ==
862
863
864 Feature: Print the sector data from start page to stop page (max is 416 pages).
865
866
867 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
868
869 [[image:image-20220523151450-11.png||_mstalt="451035"]]
870
871
872 (% style="color:#4f81bd" %)**Downlink Command:**
873
874 No downlink commands for feature
875
876
877 == 4.8 Print last few data entries. ==
878
879
880 Feature: Print the last few data entries
881
882
883 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
884
885 [[image:image-20220523151524-12.png||_mstalt="452101"]]
886
887
888 (% style="color:#4f81bd" %)**Downlink Command:**
889
890 No downlink commands for feature
891
892
893 == 4.9 Clear Flash Record ==
894
895
896 Feature: Clear flash storage for data log feature.
897
898
899 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
900
901 [[image:image-20220523151556-13.png||_mstalt="454129"]]
902
903
904 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
905
906 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
907
908 == 4.10 Auto Send None-ACK messages ==
909
910
911 Feature: LHT65N-E5 will wait for ACK for each uplink, If LHT65N-E5 doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N-E5 keeps sending messages in normal periodically. Once LHT65N-E5 gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
912
913
914 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
915
916 The default factory setting is 0
917
918 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:367px" %)
919 |=(% style="width: 158px;" %)**Command Example**|=(% style="width: 118px;" %)**Function**|=(% style="width: 87px;" %)**Response**
920 |(% style="width:158px" %)AT+PNACKMD=1|(% style="width:118px" %)Poll None-ACK message|(% style="width:87px" %)OK
921
922 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
923
924 * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
925
926 = 5. Battery & How to replace =
927
928 == 5.1 Battery Type ==
929
930
931 (((
932 LHT65N-E5 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.
933 )))
934
935 (((
936 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
937
938
939 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
940 )))
941
942 The minimum Working Voltage for the LHT65N-E5 is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
943
944
945 == 5.2 Replace Battery ==
946
947
948 LHT65N-E5 has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery (3.0v). Any brand should be ok.
949
950 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
951
952
953 == 5.3 Battery Life Analyze ==
954
955
956 (((
957 Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life:
958 [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
959 )))
960
961
962 (((
963 A full detail test report for LHT65N-E5 on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
964 )))
965
966
967 = 6. FAQ =
968
969 == 6.1 How to use AT Command? ==
970
971
972 LHT65N-E5 supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below.
973
974
975 [[image:image-20220615153355-1.png||_mstalt="430222"]]
976
977
978
979 [[image:1655802313617-381.png||_mstalt="293917"]]
980
981
982
983 (((
984 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N-E5. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout.
985 )))
986
987 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
988
989 AT Command List is as below:
990
991 AT+<CMD>? :  Help on <CMD>
992
993 AT+<CMD> :  Run <CMD>
994
995 AT+<CMD>=<value> :  Set the value
996
997 AT+<CMD>=? :  Get the value
998
999 AT+DEBUG:  Set more info output
1000
1001 ATZ:  Trig a reset of the MCU
1002
1003 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1004
1005 AT+DEUI:  Get or Set the Device EUI
1006
1007 AT+DADDR:  Get or Set the Device Address
1008
1009 AT+APPKEY:  Get or Set the Application Key
1010
1011 AT+NWKSKEY:  Get or Set the Network Session Key
1012
1013 AT+APPSKEY:  Get or Set the Application Session Key
1014
1015 AT+APPEUI:  Get or Set the Application EUI
1016
1017 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1018
1019 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1020
1021 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1022
1023 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1024
1025 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1026
1027 AT+RX2FQ:  Get or Set the Rx2 window frequency
1028
1029 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1030
1031 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1032
1033 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1034
1035 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1036
1037 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1038
1039 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1040
1041 AT+NWKID:  Get or Set the Network ID
1042
1043 AT+FCU:  Get or Set the Frame Counter Uplink
1044
1045 AT+FCD:  Get or Set the Frame Counter Downlink
1046
1047 AT+CLASS:  Get or Set the Device Class
1048
1049 AT+JOIN:  Join network
1050
1051 AT+NJS:  Get the join status
1052
1053 AT+SENDB:  Send hexadecimal data along with the application port
1054
1055 AT+SEND:  Send text data along with the application port
1056
1057 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1058
1059 AT+RECV:  Print last received data in raw format
1060
1061 AT+VER:  Get current image version and Frequency Band
1062
1063 AT+CFM:  Get or Set the confirmation mode (0-1)
1064
1065 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1066
1067 AT+SNR:  Get the SNR of the last received packet
1068
1069 AT+RSSI:  Get the RSSI of the last received packet
1070
1071 AT+TDC:  Get or set the application data transmission interval in ms
1072
1073 AT+PORT:  Get or set the application port
1074
1075 AT+DISAT:  Disable AT commands
1076
1077 AT+PWORD: Set password, max 9 digits
1078
1079 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1080
1081 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1082
1083 AT+PDTA:  Print the sector data from start page to stop page
1084
1085 AT+PLDTA:  Print the last few sets of data
1086
1087 AT+CLRDTA:  Clear the storage, record position back to 1st
1088
1089 AT+SLEEP:  Set sleep mode
1090
1091 AT+EXT:  Get or Set external sensor model
1092
1093 AT+BAT:  Get the current battery voltage in mV
1094
1095 AT+CFG:  Print all configurations
1096
1097 AT+WMOD:  Get or Set Work Mode
1098
1099 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1100
1101 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1102
1103 AT+SETCNT:  Set the count at present
1104
1105 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1106
1107 AT+RPL:  Get or set response level
1108
1109 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1110
1111 AT+LEAPSEC:  Get or Set Leap Second
1112
1113 AT+SYNCMOD:  Get or Set time synchronization method
1114
1115 AT+SYNCTDC:  Get or set time synchronization interval in day
1116
1117 AT+PID:  Get or set the PID
1118
1119
1120 == 6.2 Where to use AT commands and Downlink commands ==
1121
1122
1123 **AT commands：**
1124
1125 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
1126
1127
1128 **Downlink commands:**
1129
1130
1131
1132 (% style="color:blue" %)**TTN:**
1133
1134 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1135
1136
1137
1138 (% style="color:blue" %)**Helium：**
1139
1140 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1141
1142
1143
1144 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1145
1146
1147 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1148
1149
1150 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1151
1152
1153
1154 (% style="color:blue" %)**Aws:**
1155
1156 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1157
1158
1159 == 6.3 How to change the uplink interval？ ==
1160
1161
1162 Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
1163
1164
1165
1166 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1167
1168
1169 == 6.4 How to use TTL-USB to connect PC to upgrade firmware? ==
1170
1171
1172 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1173
1174
1175 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1176
1177 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1178
1179
1180
1181 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1182
1183 First connect the four lines；(% style="display:none" %)
1184
1185 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
1186
1187
1188 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1189
1190 [[image:image-20220621170938-2.png||_mstalt="431704"]]
1191
1192
1193
1194 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1195
1196 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1197
1198
1199 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1200
1201
1202 When this interface appears, it indicates that the download has been completed.
1203
1204 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1205
1206
1207 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1208
1209
1210
1211 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1212
1213
1214
1215 = 7. Order Info =
1216
1217
1218 Part Number: (% style="color:#4f81bd" %)** LHT65N-E5-XX**
1219
1220 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1221
1222 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1223 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1224 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1225 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1226 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1227 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
1228 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1229 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1230
1231 = 8. Packing Info =
1232
1233
1234 **Package Includes**:
1235
1236 * LHT65N-E5 Temperature/Humidity/Illuminance Sensor x 1
1237
1238 **Dimension and weight**:
1239
1240 * Device Size:  10 x 10 x 3.5 mm
1241 * Device Weight: 120.5g
1242
1243 = 9. Reference material =
1244
1245
1246 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1247
1248 = 10. FCC Warning =
1249
1250
1251 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1252
1253 (1) This device may not cause harmful interference；
1254
1255 (2) this device must accept any interference received, including interference that may cause undesired operation.

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