Version 231.1 by Edwin Chen on 2022/12/24 10:26
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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
57 (% style="display:none" %)
58
59
60
61 == 1.3 Specification ==
62
63
64 (% style="color:#037691" %)**Built-in Temperature Sensor:**
65
66 * Resolution: 0.01 °C
67 * Accuracy Tolerance : Typ ±0.3 °C
68 * Long Term Drift: < 0.02 °C/yr
69 * Operating Range: -40 ~~ 85 °C
70
71 (% style="color:#037691" %)**Built-in Humidity Sensor:**
72
73 * Resolution: 0.04 %RH
74 * Accuracy Tolerance : Typ ±3 %RH
75 * Long Term Drift: < 0.02 °C/yr
76 * Operating Range: 0 ~~ 96 %RH
77
78 (% style="color:#037691" %)**External IIIuminace Sensor:**
79
80 * Base on BH1750 Illumination Sensor
81 * Cable Length : 50cm
82 * Resolution: 1 lx
83 * Range: 0-65535 lx
84 * Operating Range: -40 °C ~~ 85 °C
85
86
87
88 = 2. Connect LHT65N-E5 to IoT Server =
89
90 == 2.1 How does LHT65N-E5 work? ==
91
92
93 (((
94 LHT65N-E5 is configured as LoRaWAN OTAA Class A mode 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.
95 )))
96
97 (((
98 If LHT65N-E5 is under 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 and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
99 )))
100
101
102 == 2.2 How to Activate LHT65N-E5? ==
103
104
105 (((
106 The LHT65N-E5 has two working modes:
107 )))
108
109 * (((
110 (% 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.
111 )))
112 * (((
113 (% 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. 
114 )))
115
116 (((
117 The LHT65N-E5 is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
118 )))
119
120
121 [[image:image-20220515123819-1.png||_mstalt="430742" height="379" width="317"]]
122
123 [[image:image-20220525110604-2.png||_mstalt="427531"]]
124
125
126 == 2.3 Example to join LoRaWAN network ==
127
128
129 (% class="wikigeneratedid" %)
130 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.
131
132
133 (% class="wikigeneratedid" %)
134 [[image:image-20220522232442-1.png||_mstalt="427830" height="387" width="648"]]
135
136
137 (((
138 Assume the LPS8N 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:
139 )))
140
141
142 === 2.3.1 Step 1: Create Device n TTN ===
143
144
145 (((
146 Create a device in TTN V3 with the OTAA keys from LHT65N-E5.
147 )))
148
149 (((
150 Each LHT65N-E5 is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
151 )))
152
153 [[image:image-20220617150003-1.jpeg||_mstalt="5426434"]]
154
155 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
156
157 Add APP EUI in the application.
158
159
160 [[image:image-20220522232916-3.png||_mstalt="430495"]]
161
162
163 [[image:image-20220522232932-4.png||_mstalt="430157"]]
164
165
166 [[image:image-20220522232954-5.png||_mstalt="431847"]]
167
168
169
170 (% style="color:red" %)**Note: LHT65N-E5 use same payload as LHT65.**
171
172
173 [[image:image-20220522233026-6.png||_mstalt="429403"]]
174
175
176 Input APP EUI,  APP KEY and DEV EUI:
177
178
179 [[image:image-20220522233118-7.png||_mstalt="430430"]]
180
181
182 === 2.3.2 Step 2: Activate LHT65N-E5 by pressing the ACT button for more than 5 seconds. ===
183
184
185 (((
186 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.
187 )))
188
189 [[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
190
191
192 == 2.4 Uplink Payload   ( Fport~=2) ==
193
194
195 (((
196 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
197 )))
198
199 (((
200 After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
201 )))
202
203 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:390px" %)
204 |=(% style="width: 60px;" %)(((
205 **Size(bytes)**
206 )))|=(% style="width: 30px;" %)(((
207 **2**
208 )))|=(% style="width: 100px;" %)(((
209 **2**
210 )))|=(% style="width: 100px;" %)(((
211 **2**
212 )))|=(% style="width: 50px;" %)(((
213 **1**
214 )))|=(% style="width: 50px;" %)(((
215 **4**
216 )))
217 |(% style="width:97px" %)(((
218 **Value**
219 )))|(% style="width:39px" %)(((
220 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
221 )))|(% style="width:100px" %)(((
222 (((
223 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
224 )))
225 )))|(% style="width:77px" %)(((
226 (((
227 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
228 )))
229 )))|(% style="width:47px" %)(((
230 [[Ext>>||anchor="H2.4.5Ext23"]] #
231 )))|(% style="width:51px" %)(((
232 [[Ext value>>||anchor="H2.4.6Extvalue"]]
233 )))
234
235 * The First 6 bytes: has fix meanings for every LHT65N-E5.
236 * The 7th byte (EXT #): defines the external sensor model.
237 * 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.)(% style="display:none" %)
238
239
240
241 === 2.4.1 Decoder in TTN V3 ===
242
243
244 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.
245
246 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]]
247
248
249 [[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
250
251
252 === 2.4.2 BAT-Battery Info ===
253
254
255 These two bytes of BAT include the battery state and the actually voltage
256
257 [[image:image-20220523152839-18.png||_mstalt="457613"]]
258
259
260 [[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
261
262
263 Check the battery voltage for LHT65N-E5.
264
265 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
266 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
267
268
269
270 === 2.4.3 Built-in Temperature ===
271
272
273 [[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
274
275 * Temperature:  0x0ABB/100=27.47℃
276
277 [[image:image-20220522235639-3.png||_mstalt="432120"]]
278
279 * Temperature:  (0xF5C6-65536)/100=-26.18℃
280
281
282
283 === 2.4.4 Built-in Humidity ===
284
285
286 [[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
287
288 * Humidity:    0x025C/10=60.4%
289
290
291
292 === 2.4.5 Ext # ===
293
294
295 Bytes for External Sensor:
296
297 [[image:image-20220523152822-17.png||_mstalt="454545"]]
298
299
300 === 2.4.6 Ext value ===
301
302 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
303
304
305 [[image:image-20220522235639-5.png||_mstalt="432848"]]
306
307
308 * DS18B20 temp=0x0ADD/100=27.81℃
309
310 The last 2 bytes of data are meaningless
311
312
313
314 [[image:image-20220522235639-6.png||_mstalt="433212"]]
315
316
317 * External temperature= (0xF54F-65536)/100=-27.37℃
318
319 The last 2 bytes of data are meaningless
320
321 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
322
323
324 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
325
326
327 (((
328 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:
329 )))
330
331 (((
332
333 )))
334
335 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:480px" %)
336 |=(% style="width: 50px;" %)(((
337 **Size(bytes)**
338 )))|=(% style="width: 70px;" %)(((
339 **2**
340 )))|=(% style="width: 120px;" %)(((
341 **2**
342 )))|=(% style="width: 120px;" %)(((
343 **2**
344 )))|=(% style="width: 50px;" %)(((
345 **1**
346 )))|=(% style="width: 70px;" %)(((
347 **4**
348 )))
349 |(% style="width:110px" %)(((
350 **Value**
351 )))|(% style="width:71px" %)(((
352 [[External temperature>>||anchor="H4.2SetExternalSensorMode"]]
353 )))|(% style="width:99px" %)(((
354 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
355 )))|(% style="width:132px" %)(((
356 BAT Status & [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
357 )))|(% style="width:54px" %)(((
358 Status & Ext
359 )))|(% style="width:64px" %)(((
360 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
361 )))
362
363 * **Battery status & Built-in Humidity**
364
365 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:461px" %)
366 |=(% style="width: 67px;" %)Bit(bit)|=(% style="width: 256px;" %)[15:14]|=(% style="width: 132px;" %)[11:0]
367 |(% style="width:67px" %)Value|(% style="width:256px" %)(((
368 BAT Status
369 00(b): Ultra Low ( BAT <= 2.50v)
370 01(b): Low  (2.50v <=BAT <= 2.55v)
371 10(b): OK   (2.55v <= BAT <=2.65v)
372 11(b): Good   (BAT >= 2.65v)
373 )))|(% style="width:132px" %)(((
374 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
375 )))
376
377 * **Status & Ext Byte**
378
379 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %)
380 |=(% 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]**
381 |=(% 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)
382
383 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
384 * (% 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.
385 * (% 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)
386
387
388
389 == 2.5 Show data on Datacake ==
390
391
392 (((
393 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:
394 )))
395
396 (((
397
398 )))
399
400 (((
401 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
402 )))
403
404 (((
405 (% 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.
406 )))
407
408
409
410 (((
411 Add Datacake:
412 )))
413
414
415 [[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
416
417
418
419 Select default key as Access Key:
420
421
422 [[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
423
424
425 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
426
427
428 [[image:image-20220523000825-9.png||_mstalt="430612" height="366" width="392"]]
429
430
431 [[image:image-20220523000825-10.png||_mstalt="450619" height="413" width="728"]]
432
433
434 == 2.6 Datalog Feature ==
435
436
437 (((
438 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.
439 )))
440
441
442 === 2.6.1 Ways to get datalog via LoRaWAN ===
443
444
445 There are two methods:
446
447 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
448
449
450 (% 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.
451
452
453 (% style="color:red" %)**Note for method 2:**
454
455 * a) LHT65N-E5 will do an ACK check for data records sending to make sure every data arrive server.
456 * 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.
457
458 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
459
460
461 [[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]
462
463
464 === 2.6.2 Unix TimeStamp ===
465
466
467 LHT65N-E5 uses Unix TimeStamp format based on
468
469
470 [[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
471
472
473
474 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
475
476 Below is the converter example
477
478 [[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
479
480
481 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
482
483
484 === 2.6.3 Set Device Time ===
485
486
487 (((
488 (% style="color:blue" %)**There are two ways to set device's time:**
489 )))
490
491 (((
492 **1.  Through LoRaWAN MAC Command (Default settings)**
493 )))
494
495 (((
496 User need to set SYNCMOD=1 to enable sync time via MAC command.
497 )))
498
499 (((
500 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).
501 )))
502
503 (((
504 (% 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.**
505 )))
506
507
508 (((
509 **2. Manually Set Time**
510 )))
511
512 (((
513 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
514 )))
515
516
517 === 2.6.4 Poll sensor value ===
518
519
520 User can poll sensor value based on timestamps from the server. Below is the downlink command.
521
522 [[image:image-20220523152302-15.png||_mstalt="451581"]]
523
524
525 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.
526
527 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)
528
529 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
530
531 Uplink Internal =5s，means LHT65N-E5 will send one packet every 5s. range 5~~255s.
532
533
534 === 2.6.5 Datalog Uplink payload ===
535
536
537 The Datalog poll reply uplink will use below payload format.
538
539 **Retrieval data payload:**
540
541 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:480px" %)
542 |=(% style="width: 60px;" %)(((
543 **Size(bytes)**
544 )))|=(% style="width: 90px;" %)**2**|=(% style="width: 90px;" %)**2**|=(% style="width: 70px;" %)**2**|=(% style="width: 100px;" %)**1**|=(% style="width: 70px;" %)**4**
545 |(% 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"]]
546
547 **Poll message flag & Ext:**
548
549 [[image:image-20221006192726-1.png||_mstalt="430508" height="112" width="754"]]
550
551 (% 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)
552
553 (% style="color:blue" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
554
555 * Poll Message Flag is set to 1.
556
557 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
558
559 For example, in US915 band, the max payload for different DR is:
560
561 (% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data
562
563 (% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
564
565 (% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data
566
567 (% style="color:blue" %)**d) DR3: **(%%)total payload includes 22 entries of data.
568
569 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
570
571
572 **Example:**
573
574 If LHT65N-E5 has below data inside Flash:
575
576 [[image:image-20220523144455-1.png||_mstalt="430040" height="335" width="735"]]
577
578
579 If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
580
581 Where : Start time: 60065F97 = time 21/1/19 04:27:03
582
583 Stop time: 60066DA7= time 21/1/19 05:27:03
584
585
586 **LHT65N-E5 will uplink this payload.**
587
588 [[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]
589
590
591 __**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
592
593 Where the first 11 bytes is for the first entry:
594
595 7FFF089801464160065F97
596
597 Ext sensor data=0x7FFF/100=327.67
598
599 Temp=0x088E/100=22.00
600
601 Hum=0x014B/10=32.6
602
603 poll message flag & Ext=0x41,means reply data,Ext=1
604
605 Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
606
607
608 == 2.7 Alarm Mode & Feature "Multi sampling, one uplink" ==
609
610
611 (((
612 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.
613 )))
614
615 (((
616 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
617
618
619 === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) ===
620
621
622 (% style="color:blue" %)**Internal GXHT30 temperature alarm（Acquisition time: fixed at one minute）**
623
624 (((
625 (% class="box infomessage" %)
626 (((
627 **AT+WMOD=3**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
628
629 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
630
631 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
632
633 (% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
634
635 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
636
637 **AT+LEDALARM=1** :       Enable LED visual Alarm.
638 )))
639 )))
640
641 (% style="color:#4f81bd" %)**Downlink Command:**
642
643 AT+WMOD=1:  A501  ,  AT+WMOD=0 :  A600
644
645 AT+CITEMP=1 : A60001
646
647 AT+ARTEMP=1,60  :  A70001003C
648
649 AT+ARTEMP=-16,60 :  A7FFF0003C
650
651 AT+LEDALARM=1  :  3601
652
653
654 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
655
656 Total bytes: 8 bytes
657
658 **Example: **AA0100010001003C
659
660 WMOD=01
661
662 CITEMP=0001
663
664 TEMPlow=0001
665
666 TEMPhigh=003C
667
668
669 (% style="color:blue" %)**DS18B20 and TMP117 Threshold Alarm**
670
671 (% style="color:#037691" %)**AT+WMOD=1,60,-10,20**
672
673
674 (% style="color:#4f81bd" %)**Downlink Command:**
675
676 **Example: **A5013CFC180014
677
678 MOD=01
679
680 CITEMP=3C(S)
681
682 TEMPlow=FC18
683
684 TEMPhigh=0014
685
686
687 (% style="color:blue" %)**Fluctuation alarm for DS18B20 and TMP117（Acquisition time: minimum 1s）**
688
689 (% style="color:#037691" %)**AT+WMOD=2,60,5** 
690
691
692 (% style="color:#4f81bd" %)**Downlink Command:**
693
694 **Example: **A5023C05
695
696 MOD=02
697
698 CITEMP=3C(S)
699
700 temperature fluctuation=05
701
702
703 ==== **Sampling multiple times and uplink together** ====
704
705
706 (% style="color:#037691" %)**AT+WMOD=3,1,60,20,-16,32,1**   
707
708 **Explain:**
709
710 * Set Working Mode to **Mode 3**
711 * Sampling Interval is **60**s.
712 * When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
713 * Temperature alarm range is **-16** to **32**°C,
714 * **1** to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
715
716
717 (% style="color:#4f81bd" %)**Downlink Command:**
718
719 **Example: **A50301003C14FFF0002001
720
721 MOD=03
722
723 EXT=01
724
725 CITEMP=003C(S)
726
727 Total number of acquisitions=14
728
729 TEMPlow=FFF0
730
731 TEMPhigh=0020
732
733 ARTEMP=01
734
735
736 **Uplink payload( Fport=3)**
737
738 **Example: CBEA**01**0992**//0A41//**09C4**
739
740 BatV=CBEA
741
742 EXT=01
743
744 Temp1=0992  ~/~/ 24.50℃
745
746 Temp2=0A41  ~/~/ 26.25℃
747
748 Temp3=09C4  ~/~/ 25.00℃
749
750
751 (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
752
753 (% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
754 )))
755
756
757 === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
758
759
760 (% class="box infomessage" %)
761 (((
762 (((
763 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
764 )))
765
766 (((
767 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
768 )))
769
770 (((
771 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
772 )))
773
774 (((
775 (% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
776 )))
777
778 (((
779 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
780 )))
781 )))
782
783 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
784
785 Total bytes: 8 bytes
786
787 **Example:**AA0100010001003C
788
789 WMOD=01
790
791 CITEMP=0001
792
793 TEMPlow=0001
794
795 TEMPhigh=003C
796
797
798 == 2.8 LED Indicator ==
799
800
801 The LHT65 has a triple color LED which for easy showing different stage .
802
803 While user press ACT button, the LED will work as per LED status with ACT button.
804
805 In a normal working state:
806
807 * For each uplink, the BLUE LED or RED LED will blink once.
808 BLUE LED when external sensor is connected.
809 * RED LED when external sensor is not connected
810 * For each success downlink, the PURPLE LED will blink once
811
812
813
814 == 2.9 installation ==
815
816
817 [[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
818
819
820 = 3. Sensors and Accessories =
821
822 == 3.1 E2 Extension Cable ==
823
824
825 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
826
827
828 **1m long breakout cable for LHT65N-E5. Features:**
829
830 * (((
831 Use for AT Command， works for both LHT52/LHT65N-E5
832 )))
833 * (((
834 Update firmware for LHT65N-E5, works for both LHT52/LHT65N-E5
835 )))
836 * (((
837 Supports ADC mode to monitor external ADC
838 )))
839 * (((
840 Supports Interrupt mode
841 )))
842 * (((
843 Exposed All pins from the LHT65N Type-C connector.
844
845
846
847 )))
848
849 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
850
851
852
853 = 4. Configure LHT65N-E5 via AT command or LoRaWAN downlink =
854
855
856 (((
857 Use can configure LHT65N-E5 via AT Command or LoRaWAN Downlink.
858 )))
859
860 * (((
861 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
862 )))
863
864 * (((
865 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
866 )))
867
868 (((
869 There are two kinds of commands to configure LHT65N-E5, they are:
870 )))
871
872 * (((
873 (% style="color:#4f81bd" %)**General Commands**.
874 )))
875
876 (((
877 These commands are to configure:
878 )))
879
880 1. (((
881 General system settings like: uplink interval.
882 )))
883 1. (((
884 LoRaWAN protocol & radio-related commands.
885 )))
886
887 (((
888 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]]
889 )))
890
891 * (((
892 (% style="color:#4f81bd" %)**Commands special design for LHT65N-E5**
893 )))
894
895 (((
896 These commands are only valid for LHT65N-E5, as below:
897 )))
898
899
900 == 4.1 Set Transmit Interval Time ==
901
902
903 Feature: Change LoRaWAN End Node Transmit Interval.
904
905
906 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
907
908 [[image:image-20220523150701-2.png||_mstalt="427453"]]
909
910
911 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
912
913 Format: Command Code (0x01) followed by 3 bytes time value.
914
915 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
916
917 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
918
919 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
920
921
922
923 == 4.2 Set External Sensor Mode ==
924
925
926 Feature: Change External Sensor Mode.
927
928
929 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
930
931 [[image:image-20220523150759-3.png||_mstalt="432146"]]
932
933
934 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
935
936 Total bytes: 2 ~~ 5 bytes
937
938 **Example:**
939
940 * 0xA201: Set external sensor type to E1
941
942 * 0xA209: Same as AT+EXT=9
943
944 * 0xA20702003c: Same as AT+SETCNT=60
945
946
947
948 == 4.3 Enable/Disable uplink Temperature probe ID ==
949
950
951 (((
952 Feature: If PID is enabled, device will send the temperature probe ID on:
953 )))
954
955 * (((
956 First Packet after OTAA Join
957 )))
958 * (((
959 Every 24 hours since the first packet.
960 )))
961
962 (((
963 PID is default set to disable (0)
964
965
966 )))
967
968 (% style="color:#4f81bd" %)**AT Command:**
969
970 [[image:image-20220523150928-4.png||_mstalt="431821"]]
971
972
973 (% style="color:#4f81bd" %)**Downlink Command:**
974
975 * **0xA800**  **~-~->** AT+PID=0
976 * **0xA801**     **~-~->** AT+PID=1
977
978
979
980 == 4.4 Set Password ==
981
982
983 Feature: Set device password, max 9 digits
984
985
986 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
987
988 [[image:image-20220523151052-5.png||_mstalt="428623"]]
989
990
991 (% style="color:#4f81bd" %)**Downlink Command:**
992
993 No downlink command for this feature.
994
995
996 == 4.5 Quit AT Command ==
997
998
999 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1000
1001
1002 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1003
1004 [[image:image-20220523151132-6.png||_mstalt="428649"]]
1005
1006
1007 (% style="color:#4f81bd" %)**Downlink Command:**
1008
1009 No downlink command for this feature.
1010
1011
1012 == 4.6 Set to sleep mode ==
1013
1014
1015 Feature: Set device to sleep mode
1016
1017 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1018 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1019
1020 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1021
1022 [[image:image-20220523151218-7.png||_mstalt="430703"]]
1023
1024
1025 (% style="color:#4f81bd" %)**Downlink Command:**
1026
1027 * There is no downlink command to set to Sleep mode.
1028
1029
1030
1031 == 4.7 Set system time ==
1032
1033
1034 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1035
1036
1037 (% style="color:#4f81bd" %)**AT Command:**
1038
1039 [[image:image-20220523151253-8.png||_mstalt="430677"]]
1040
1041
1042 (% style="color:#4f81bd" %)**Downlink Command:**
1043
1044 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1045
1046
1047 == 4.8 Set Time Sync Mode ==
1048
1049
1050 (((
1051 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1052 )))
1053
1054 (((
1055 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.
1056
1057
1058 )))
1059
1060 (% style="color:#4f81bd" %)**AT Command:**
1061
1062 [[image:image-20220523151336-9.png||_mstalt="431717"]]
1063
1064
1065 (% style="color:#4f81bd" %)**Downlink Command:**
1066
1067 0x28 01  ~/~/  Same As AT+SYNCMOD=1
1068 0x28 00  ~/~/  Same As AT+SYNCMOD=0
1069
1070
1071 == 4.9 Set Time Sync Interval ==
1072
1073
1074 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1075
1076
1077 (% style="color:#4f81bd" %)**AT Command:**
1078
1079 [[image:image-20220523151411-10.png||_mstalt="449696"]]
1080
1081
1082 (% style="color:#4f81bd" %)**Downlink Command:**
1083
1084 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1085
1086
1087 == 4.10 Print data entries base on page. ==
1088
1089
1090 Feature: Print the sector data from start page to stop page (max is 416 pages).
1091
1092
1093 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1094
1095 [[image:image-20220523151450-11.png||_mstalt="451035"]]
1096
1097
1098 (% style="color:#4f81bd" %)**Downlink Command:**
1099
1100 No downlink commands for feature
1101
1102
1103 == 4.11 Print last few data entries. ==
1104
1105
1106 Feature: Print the last few data entries
1107
1108
1109 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1110
1111 [[image:image-20220523151524-12.png||_mstalt="452101"]]
1112
1113
1114 (% style="color:#4f81bd" %)**Downlink Command:**
1115
1116 No downlink commands for feature
1117
1118
1119 == 4.12 Clear Flash Record ==
1120
1121
1122 Feature: Clear flash storage for data log feature.
1123
1124
1125 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1126
1127 [[image:image-20220523151556-13.png||_mstalt="454129"]]
1128
1129
1130 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1131
1132 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1133
1134
1135
1136 == 4.13 Auto Send None-ACK messages ==
1137
1138
1139 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.
1140
1141
1142 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1143
1144 The default factory setting is 0
1145
1146 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:367px" %)
1147 |=(% style="width: 158px;" %)**Command Example**|=(% style="width: 118px;" %)**Function**|=(% style="width: 87px;" %)**Response**
1148 |(% style="width:158px" %)AT+PNACKMD=1|(% style="width:118px" %)Poll None-ACK message|(% style="width:87px" %)OK
1149
1150 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1151
1152 * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1153
1154
1155
1156 == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1157
1158
1159 Feature: Set internal and external temperature sensor alarms.
1160
1161 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %)
1162 |=(% style="width: 250px;" %)**Command Example**|=(% style="width: 200px;" %)**Function**|=(% style="width: 50px;" %)**Response**
1163 |(% style="width:268px" %)AT+WMOD=parameter1,parameter2,parameter3,parameter4|(% style="width:255px" %)Set internal and external temperature sensor alarms|(% style="width:181px" %)OK
1164
1165 (% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
1166
1167 (% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
1168
1169 0): Cancel
1170
1171 1): Threshold alarm
1172
1173 2): Fluctuation alarm
1174
1175
1176 (% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
1177
1178 (% style="color:red" %)**Note: When the collection time is less than 60 seconds and always exceeds the set alarm threshold, the sending interval will not be the collection time, but will be sent every 60 seconds.**
1179
1180
1181 (% style="color:#037691" %) **Parameter 3 and parameter 4:**
1182
1183 1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
1184
1185 Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
1186
1187
1188 2):  If Alarm Mode is set to 2: Parameter 3 is valid, which represents the difference between the currently collected temperature and the last uploaded temperature.
1189
1190 Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
1191
1192 If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
1193
1194
1195 (% style="color:#4f81bd" %)**Downlink Command: 0xA5**
1196
1197 0xA5 00 ~-~- AT+WMOD=0.
1198
1199 0xA5 01 0A 11 94 29 04 ~-~- AT+WMOD=1,10,45,105  (AT+WMOD = second byte, third byte, fourth and fifth bytes divided by 100, sixth and seventh bytes divided by 100 )
1200
1201 0XA5 01 0A F9 C0 29 04 ~-~-AT+WMOD=1,10,-16,105(Need to convert -16 to -1600 for calculation，-1600(DEC)=FFFFFFFFFFFFF9C0(HEX)  FFFFFFFFFFFFF9C0(HEX) +10000(HEX)=F9C0(HEX))
1202
1203 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1204
1205 0xA5 FF ~-~- After the device receives it, upload the current alarm configuration (FPORT=8). Such as 01 0A 11 94 29 04 or 02 0A 02.
1206
1207
1208 = 5. Battery & How to replace =
1209
1210 == 5.1 Battery Type ==
1211
1212
1213 (((
1214 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.
1215 )))
1216
1217 (((
1218 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1219
1220
1221 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
1222 )))
1223
1224 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.
1225
1226
1227 == 5.2 Replace Battery ==
1228
1229
1230 LHT65N-E5 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.
1231
1232 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
1233
1234
1235 == 5.3 Battery Life Analyze ==
1236
1237
1238 (((
1239 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:
1240 [[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]]
1241 )))
1242
1243
1244 (((
1245 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]]
1246 )))
1247
1248
1249 = 6. FAQ =
1250
1251 == 6.1 How to use AT Command? ==
1252
1253
1254 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.
1255
1256 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1257
1258
1259 **Connection:**
1260
1261 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1262 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1263 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1264
1265 (((
1266 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**) (%%)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.
1267 )))
1268
1269
1270 Input password and ATZ to activate LHT65N-E5,As shown below:
1271
1272 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1273
1274
1275 AT Command List is as below:
1276
1277 AT+<CMD>? :  Help on <CMD>
1278
1279 AT+<CMD> :  Run <CMD>
1280
1281 AT+<CMD>=<value> :  Set the value
1282
1283 AT+<CMD>=? :  Get the value
1284
1285 AT+DEBUG:  Set more info output
1286
1287 ATZ:  Trig a reset of the MCU
1288
1289 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1290
1291 AT+DEUI:  Get or Set the Device EUI
1292
1293 AT+DADDR:  Get or Set the Device Address
1294
1295 AT+APPKEY:  Get or Set the Application Key
1296
1297 AT+NWKSKEY:  Get or Set the Network Session Key
1298
1299 AT+APPSKEY:  Get or Set the Application Session Key
1300
1301 AT+APPEUI:  Get or Set the Application EUI
1302
1303 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1304
1305 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1306
1307 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1308
1309 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1310
1311 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1312
1313 AT+RX2FQ:  Get or Set the Rx2 window frequency
1314
1315 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1316
1317 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1318
1319 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1320
1321 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1322
1323 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1324
1325 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1326
1327 AT+NWKID:  Get or Set the Network ID
1328
1329 AT+FCU:  Get or Set the Frame Counter Uplink
1330
1331 AT+FCD:  Get or Set the Frame Counter Downlink
1332
1333 AT+CLASS:  Get or Set the Device Class
1334
1335 AT+JOIN:  Join network
1336
1337 AT+NJS:  Get the join status
1338
1339 AT+SENDB:  Send hexadecimal data along with the application port
1340
1341 AT+SEND:  Send text data along with the application port
1342
1343 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1344
1345 AT+RECV:  Print last received data in raw format
1346
1347 AT+VER:  Get current image version and Frequency Band
1348
1349 AT+CFM:  Get or Set the confirmation mode (0-1)
1350
1351 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1352
1353 AT+SNR:  Get the SNR of the last received packet
1354
1355 AT+RSSI:  Get the RSSI of the last received packet
1356
1357 AT+TDC:  Get or set the application data transmission interval in ms
1358
1359 AT+PORT:  Get or set the application port
1360
1361 AT+DISAT:  Disable AT commands
1362
1363 AT+PWORD: Set password, max 9 digits
1364
1365 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1366
1367 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1368
1369 AT+PDTA:  Print the sector data from start page to stop page
1370
1371 AT+PLDTA:  Print the last few sets of data
1372
1373 AT+CLRDTA:  Clear the storage, record position back to 1st
1374
1375 AT+SLEEP:  Set sleep mode
1376
1377 AT+EXT:  Get or Set external sensor model
1378
1379 AT+BAT:  Get the current battery voltage in mV
1380
1381 AT+CFG:  Print all configurations
1382
1383 AT+WMOD:  Get or Set Work Mode
1384
1385 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1386
1387 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1388
1389 AT+SETCNT:  Set the count at present
1390
1391 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1392
1393 AT+RPL:  Get or set response level
1394
1395 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1396
1397 AT+LEAPSEC:  Get or Set Leap Second
1398
1399 AT+SYNCMOD:  Get or Set time synchronization method
1400
1401 AT+SYNCTDC:  Get or set time synchronization interval in day
1402
1403 AT+PID:  Get or set the PID
1404
1405
1406 == 6.2 Where to use AT commands and Downlink commands ==
1407
1408
1409 **AT commands：**
1410
1411 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
1412
1413
1414 **Downlink commands:**
1415
1416
1417
1418 (% style="color:blue" %)**TTN:**
1419
1420 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1421
1422
1423
1424 (% style="color:blue" %)**Helium：**
1425
1426 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1427
1428
1429
1430 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1431
1432
1433 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1434
1435
1436 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1437
1438
1439
1440 (% style="color:blue" %)**Aws:**
1441
1442 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1443
1444
1445 == 6.3 How to change the uplink interval？ ==
1446
1447
1448 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);"]]
1449
1450
1451 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1452
1453
1454 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1455
1456 [[image:1655802313617-381.png||_mstalt="293917"]]
1457
1458
1459 (((
1460 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.
1461 )))
1462
1463
1464 Input password and ATZ to activate LHT65N,As shown below:
1465
1466 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1467
1468
1469 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1470
1471
1472 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1473
1474
1475 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1476
1477 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1478
1479
1480
1481 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1482
1483 First connect the four lines；(% style="display:none" %)
1484
1485 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
1486
1487
1488 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1489
1490 [[image:image-20220621170938-2.png||_mstalt="431704"]]
1491
1492
1493
1494 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1495
1496 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1497
1498
1499 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1500
1501
1502 When this interface appears, it indicates that the download has been completed.
1503
1504 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1505
1506
1507 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1508
1509
1510 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1511
1512
1513 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1514
1515
1516 [[image:image-20220623112117-4.png||_mstalt="428350" height="459" width="343"]]
1517
1518
1519 (((
1520 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.
1521 )))
1522
1523
1524 Input password and ATZ to activate LHT65N-E5,As shown below:
1525
1526 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1527
1528
1529 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1530
1531
1532 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1533
1534
1535 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1536
1537 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1538
1539
1540
1541 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1542
1543 First connect the four lines；
1544
1545 [[image:image-20220623113959-5.png||_mstalt="433485" height="528" width="397"]]
1546
1547 Connect A8 and GND with Dupont wire for a while and then separate，enter reset mode
1548
1549
1550
1551 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1552
1553 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1554
1555
1556 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1557
1558
1559 When this interface appears, it indicates that the download has been completed.
1560
1561 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1562
1563
1564 Finally,Disconnect 3.3v，Connect A8 and GND with Dupont wire for a while and then separate，exit reset mode
1565
1566
1567 = 7. Order Info =
1568
1569
1570 Part Number: (% style="color:#4f81bd" %)** LHT65N-E5-XX**
1571
1572 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1573
1574 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1575 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1576 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1577 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1578 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1579 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
1580 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1581 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1582
1583
1584
1585 = 8. Packing Info =
1586
1587
1588 **Package Includes**:
1589
1590 * LHT65N-E5 Temperature/Humidity/Illuminance Sensor x 1
1591
1592 **Dimension and weight**:
1593
1594 * Device Size:  10 x 10 x 3.5 mm
1595 * Device Weight: 120.5g
1596
1597
1598
1599 = 9. Reference material =
1600
1601
1602 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1603
1604
1605
1606 = 10. FCC Warning =
1607
1608
1609 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1610
1611 (1) This device may not cause harmful interference；
1612
1613 (2) this device must accept any interference received, including interference that may cause undesired operation.

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