Version 233.1 by Edwin Chen on 2022/12/24 10:38
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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
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 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.
95 )))
96
97 (((
98 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.
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-20221224101636-1.png||height="435" width="715"]]
135
136
137 (((
138 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:
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 decoder 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. It can be 0x05 or 0x09 for LHT65N-E5
237 * The 8^^th^^ ~~ 9^^th^^ byte: Illuminance. Range: 0-65535 lx. 
238 * The 10th ~~ 11th byte: Reserve, always 0xFFFF
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 === 2.4.3 Built-in Temperature ===
270
271
272 [[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
273
274 * Temperature:  0x0ABB/100=27.47℃
275
276 [[image:image-20220522235639-3.png||_mstalt="432120"]]
277
278 * Temperature:  (0xF5C6-65536)/100=-26.18℃
279
280
281 === 2.4.4 Built-in Humidity ===
282
283
284 [[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
285
286 * Humidity:    0x025C/10=60.4%
287
288
289 === 2.4.5 Ext # ===
290
291
292 Bytes for External Sensor:
293
294
295 === 2.4.6 Ext value ===
296
297 ==== 2.4.6.1 Ext~=0x05, Normal Uplink for Illumination value ====
298
299
300 [[image:image-20221224102618-3.png||height="187" width="1184"]]
301
302
303 * Illumination=0x005E=94 lux
304
305 The last 2 bytes of data are meaningless when EXT=0x05
306
307
308
309 ==== 2.4.6.2 Ext~=0x09, E5 sensor with Unix Timestamp ====
310
311
312 (((
313 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:
314 )))
315
316 (((
317
318 )))
319
320 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:480px" %)
321 |=(% style="width: 50px;" %)(((
322 **Size(bytes)**
323 )))|=(% style="width: 70px;" %)(((
324 **2**
325 )))|=(% style="width: 120px;" %)(((
326 **2**
327 )))|=(% style="width: 120px;" %)(((
328 **2**
329 )))|=(% style="width: 50px;" %)(((
330 **1**
331 )))|=(% style="width: 70px;" %)(((
332 **4**
333 )))
334 |(% style="width:110px" %)(((
335 **Value**
336 )))|(% style="width:71px" %)(((
337 [[External temperature>>||anchor="H4.2SetExternalSensorMode"]]
338 )))|(% style="width:99px" %)(((
339 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
340 )))|(% style="width:132px" %)(((
341 BAT Status & [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
342 )))|(% style="width:54px" %)(((
343 Status & Ext
344 )))|(% style="width:64px" %)(((
345 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
346 )))
347
348 * **Battery status & Built-in Humidity**
349
350 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:461px" %)
351 |=(% style="width: 67px;" %)Bit(bit)|=(% style="width: 256px;" %)[15:14]|=(% style="width: 132px;" %)[11:0]
352 |(% style="width:67px" %)Value|(% style="width:256px" %)(((
353 BAT Status
354 00(b): Ultra Low ( BAT <= 2.50v)
355 01(b): Low  (2.50v <=BAT <= 2.55v)
356 10(b): OK   (2.55v <= BAT <=2.65v)
357 11(b): Good   (BAT >= 2.65v)
358 )))|(% style="width:132px" %)(((
359 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
360 )))
361
362 * **Status & Ext Byte**
363
364 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %)
365 |=(% 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]**
366 |=(% 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)
367
368 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
369 * (% 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.
370 * (% 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)
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"]]
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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-20220523000825-9.png||_mstalt="430612" height="366" width="392"]]
413
414
415 [[image:image-20220523000825-10.png||_mstalt="450619" height="413" width="728"]]
416
417
418 == 2.6 Datalog Feature ==
419
420
421 (((
422 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.
423 )))
424
425
426 === 2.6.1 Ways to get datalog via LoRaWAN ===
427
428
429 There are two methods:
430
431 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
432
433
434 (% 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.
435
436
437 (% style="color:red" %)**Note for method 2:**
438
439 * a) LHT65N-E5 will do an ACK check for data records sending to make sure every data arrive server.
440 * 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.
441
442 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
443
444
445 [[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]
446
447
448 === 2.6.2 Unix TimeStamp ===
449
450
451 LHT65N-E5 uses Unix TimeStamp format based on
452
453
454 [[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
455
456
457
458 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
459
460 Below is the converter example
461
462 [[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
463
464
465 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
466
467
468 === 2.6.3 Set Device Time ===
469
470
471 (((
472 (% style="color:blue" %)**There are two ways to set device's time:**
473 )))
474
475 (((
476 **1.  Through LoRaWAN MAC Command (Default settings)**
477 )))
478
479 (((
480 User need to set SYNCMOD=1 to enable sync time via MAC command.
481 )))
482
483 (((
484 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).
485 )))
486
487 (((
488 (% 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.**
489 )))
490
491
492 (((
493 **2. Manually Set Time**
494 )))
495
496 (((
497 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
498 )))
499
500
501 === 2.6.4 Poll sensor value ===
502
503
504 User can poll sensor value based on timestamps from the server. Below is the downlink command.
505
506 [[image:image-20220523152302-15.png||_mstalt="451581"]]
507
508
509 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.
510
511 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)
512
513 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
514
515 Uplink Internal =5s，means LHT65N-E5 will send one packet every 5s. range 5~~255s.
516
517
518 === 2.6.5 Datalog Uplink payload ===
519
520
521 The Datalog poll reply uplink will use below payload format.
522
523 **Retrieval data payload:**
524
525 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:480px" %)
526 |=(% style="width: 60px;" %)(((
527 **Size(bytes)**
528 )))|=(% style="width: 90px;" %)**2**|=(% style="width: 90px;" %)**2**|=(% style="width: 70px;" %)**2**|=(% style="width: 100px;" %)**1**|=(% style="width: 70px;" %)**4**
529 |(% 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"]]
530
531 **Poll message flag & Ext:**
532
533 [[image:image-20221006192726-1.png||_mstalt="430508" height="112" width="754"]]
534
535 (% 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)
536
537 (% style="color:blue" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
538
539 * Poll Message Flag is set to 1.
540
541 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
542
543 For example, in US915 band, the max payload for different DR is:
544
545 (% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data
546
547 (% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
548
549 (% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data
550
551 (% style="color:blue" %)**d) DR3: **(%%)total payload includes 22 entries of data.
552
553 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
554
555
556 **Example:**
557
558 If LHT65N-E5 has below data inside Flash:
559
560 [[image:image-20220523144455-1.png||_mstalt="430040" height="335" width="735"]]
561
562
563 If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
564
565 Where : Start time: 60065F97 = time 21/1/19 04:27:03
566
567 Stop time: 60066DA7= time 21/1/19 05:27:03
568
569
570 **LHT65N-E5 will uplink this payload.**
571
572 [[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]
573
574
575 __**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
576
577 Where the first 11 bytes is for the first entry:
578
579 7FFF089801464160065F97
580
581 Ext sensor data=0x7FFF/100=327.67
582
583 Temp=0x088E/100=22.00
584
585 Hum=0x014B/10=32.6
586
587 poll message flag & Ext=0x41,means reply data,Ext=1
588
589 Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
590
591
592 == 2.7 Alarm Mode & Feature "Multi sampling, one uplink" ==
593
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 ( Since v1.3.1 firmware) ===
604
605
606 (% style="color:blue" %)**Internal GXHT30 temperature alarm（Acquisition time: fixed at one minute）**
607
608 (((
609 (% class="box infomessage" %)
610 (((
611 **AT+WMOD=3**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
612
613 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
614
615 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
616
617 (% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
618
619 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
620
621 **AT+LEDALARM=1** :       Enable LED visual Alarm.
622 )))
623 )))
624
625 (% style="color:#4f81bd" %)**Downlink Command:**
626
627 AT+WMOD=1:  A501  ,  AT+WMOD=0 :  A600
628
629 AT+CITEMP=1 : A60001
630
631 AT+ARTEMP=1,60  :  A70001003C
632
633 AT+ARTEMP=-16,60 :  A7FFF0003C
634
635 AT+LEDALARM=1  :  3601
636
637
638 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
639
640 Total bytes: 8 bytes
641
642 **Example: **AA0100010001003C
643
644 WMOD=01
645
646 CITEMP=0001
647
648 TEMPlow=0001
649
650 TEMPhigh=003C
651
652
653 (% style="color:blue" %)**DS18B20 and TMP117 Threshold Alarm**
654
655 (% style="color:#037691" %)**AT+WMOD=1,60,-10,20**
656
657
658 (% style="color:#4f81bd" %)**Downlink Command:**
659
660 **Example: **A5013CFC180014
661
662 MOD=01
663
664 CITEMP=3C(S)
665
666 TEMPlow=FC18
667
668 TEMPhigh=0014
669
670
671 (% style="color:blue" %)**Fluctuation alarm for DS18B20 and TMP117（Acquisition time: minimum 1s）**
672
673 (% style="color:#037691" %)**AT+WMOD=2,60,5** 
674
675
676 (% style="color:#4f81bd" %)**Downlink Command:**
677
678 **Example: **A5023C05
679
680 MOD=02
681
682 CITEMP=3C(S)
683
684 temperature fluctuation=05
685
686
687 ==== **Sampling multiple times and uplink together** ====
688
689
690 (% style="color:#037691" %)**AT+WMOD=3,1,60,20,-16,32,1**   
691
692 **Explain:**
693
694 * Set Working Mode to **Mode 3**
695 * Sampling Interval is **60**s.
696 * 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)
697 * Temperature alarm range is **-16** to **32**°C,
698 * **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.
699
700 (% style="color:#4f81bd" %)**Downlink Command:**
701
702 **Example: **A50301003C14FFF0002001
703
704 MOD=03
705
706 EXT=01
707
708 CITEMP=003C(S)
709
710 Total number of acquisitions=14
711
712 TEMPlow=FFF0
713
714 TEMPhigh=0020
715
716 ARTEMP=01
717
718
719 **Uplink payload( Fport=3)**
720
721 **Example: CBEA**01**0992**//0A41//**09C4**
722
723 BatV=CBEA
724
725 EXT=01
726
727 Temp1=0992  ~/~/ 24.50℃
728
729 Temp2=0A41  ~/~/ 26.25℃
730
731 Temp3=09C4  ~/~/ 25.00℃
732
733
734 (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
735
736 (% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
737 )))
738
739
740 === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
741
742
743 (% class="box infomessage" %)
744 (((
745 (((
746 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
747 )))
748
749 (((
750 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
751 )))
752
753 (((
754 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
755 )))
756
757 (((
758 (% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
759 )))
760
761 (((
762 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
763 )))
764 )))
765
766 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
767
768 Total bytes: 8 bytes
769
770 **Example:**AA0100010001003C
771
772 WMOD=01
773
774 CITEMP=0001
775
776 TEMPlow=0001
777
778 TEMPhigh=003C
779
780
781 == 2.8 LED Indicator ==
782
783
784 The LHT65 has a triple color LED which for easy showing different stage .
785
786 While user press ACT button, the LED will work as per LED status with ACT button.
787
788 In a normal working state:
789
790 * For each uplink, the BLUE LED or RED LED will blink once.
791 BLUE LED when external sensor is connected.
792 * RED LED when external sensor is not connected
793 * For each success downlink, the PURPLE LED will blink once
794
795
796 == 2.9 installation ==
797
798
799 [[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
800
801
802 = 3. Sensors and Accessories =
803
804 == 3.1 E2 Extension Cable ==
805
806
807 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
808
809
810 **1m long breakout cable for LHT65N-E5. Features:**
811
812 * (((
813 Use for AT Command， works for both LHT52/LHT65N-E5
814 )))
815 * (((
816 Update firmware for LHT65N-E5, works for both LHT52/LHT65N-E5
817 )))
818 * (((
819 Supports ADC mode to monitor external ADC
820 )))
821 * (((
822 Supports Interrupt mode
823 )))
824 * (((
825 Exposed All pins from the LHT65N Type-C connector.
826
827
828
829 )))
830
831 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
832
833
834
835 = 4. Configure LHT65N-E5 via AT command or LoRaWAN downlink =
836
837
838 (((
839 Use can configure LHT65N-E5 via AT Command or LoRaWAN Downlink.
840 )))
841
842 * (((
843 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
844 )))
845
846 * (((
847 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
848 )))
849
850 (((
851 There are two kinds of commands to configure LHT65N-E5, they are:
852 )))
853
854 * (((
855 (% style="color:#4f81bd" %)**General Commands**.
856 )))
857
858 (((
859 These commands are to configure:
860 )))
861
862 1. (((
863 General system settings like: uplink interval.
864 )))
865 1. (((
866 LoRaWAN protocol & radio-related commands.
867 )))
868
869 (((
870 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]]
871 )))
872
873 * (((
874 (% style="color:#4f81bd" %)**Commands special design for LHT65N-E5**
875 )))
876
877 (((
878 These commands are only valid for LHT65N-E5, as below:
879 )))
880
881
882 == 4.1 Set Transmit Interval Time ==
883
884
885 Feature: Change LoRaWAN End Node Transmit Interval.
886
887
888 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
889
890 [[image:image-20220523150701-2.png||_mstalt="427453"]]
891
892
893 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
894
895 Format: Command Code (0x01) followed by 3 bytes time value.
896
897 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
898
899 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
900
901 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
902
903
904 == 4.2 Set External Sensor Mode ==
905
906
907 Feature: Change External Sensor Mode.
908
909
910 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
911
912 [[image:image-20220523150759-3.png||_mstalt="432146"]]
913
914
915 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
916
917 Total bytes: 2 ~~ 5 bytes
918
919 **Example:**
920
921 * 0xA201: Set external sensor type to E1
922
923 * 0xA209: Same as AT+EXT=9
924
925 * 0xA20702003c: Same as AT+SETCNT=60
926
927
928 == 4.3 Enable/Disable uplink Temperature probe ID ==
929
930
931 (((
932 Feature: If PID is enabled, device will send the temperature probe ID on:
933 )))
934
935 * (((
936 First Packet after OTAA Join
937 )))
938 * (((
939 Every 24 hours since the first packet.
940 )))
941
942 (((
943 PID is default set to disable (0)
944
945
946 )))
947
948 (% style="color:#4f81bd" %)**AT Command:**
949
950 [[image:image-20220523150928-4.png||_mstalt="431821"]]
951
952
953 (% style="color:#4f81bd" %)**Downlink Command:**
954
955 * **0xA800**  **~-~->** AT+PID=0
956 * **0xA801**     **~-~->** AT+PID=1
957
958
959 == 4.4 Set Password ==
960
961
962 Feature: Set device password, max 9 digits
963
964
965 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
966
967 [[image:image-20220523151052-5.png||_mstalt="428623"]]
968
969
970 (% style="color:#4f81bd" %)**Downlink Command:**
971
972 No downlink command for this feature.
973
974
975 == 4.5 Quit AT Command ==
976
977
978 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
979
980
981 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
982
983 [[image:image-20220523151132-6.png||_mstalt="428649"]]
984
985
986 (% style="color:#4f81bd" %)**Downlink Command:**
987
988 No downlink command for this feature.
989
990
991 == 4.6 Set to sleep mode ==
992
993
994 Feature: Set device to sleep mode
995
996 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
997 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
998
999 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1000
1001 [[image:image-20220523151218-7.png||_mstalt="430703"]]
1002
1003
1004 (% style="color:#4f81bd" %)**Downlink Command:**
1005
1006 * There is no downlink command to set to Sleep mode.
1007
1008
1009 == 4.7 Set system time ==
1010
1011
1012 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1013
1014
1015 (% style="color:#4f81bd" %)**AT Command:**
1016
1017 [[image:image-20220523151253-8.png||_mstalt="430677"]]
1018
1019
1020 (% style="color:#4f81bd" %)**Downlink Command:**
1021
1022 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1023
1024
1025 == 4.8 Set Time Sync Mode ==
1026
1027
1028 (((
1029 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1030 )))
1031
1032 (((
1033 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.
1034
1035
1036 )))
1037
1038 (% style="color:#4f81bd" %)**AT Command:**
1039
1040 [[image:image-20220523151336-9.png||_mstalt="431717"]]
1041
1042
1043 (% style="color:#4f81bd" %)**Downlink Command:**
1044
1045 0x28 01  ~/~/  Same As AT+SYNCMOD=1
1046 0x28 00  ~/~/  Same As AT+SYNCMOD=0
1047
1048
1049 == 4.9 Set Time Sync Interval ==
1050
1051
1052 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1053
1054
1055 (% style="color:#4f81bd" %)**AT Command:**
1056
1057 [[image:image-20220523151411-10.png||_mstalt="449696"]]
1058
1059
1060 (% style="color:#4f81bd" %)**Downlink Command:**
1061
1062 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1063
1064
1065 == 4.10 Print data entries base on page. ==
1066
1067
1068 Feature: Print the sector data from start page to stop page (max is 416 pages).
1069
1070
1071 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1072
1073 [[image:image-20220523151450-11.png||_mstalt="451035"]]
1074
1075
1076 (% style="color:#4f81bd" %)**Downlink Command:**
1077
1078 No downlink commands for feature
1079
1080
1081 == 4.11 Print last few data entries. ==
1082
1083
1084 Feature: Print the last few data entries
1085
1086
1087 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1088
1089 [[image:image-20220523151524-12.png||_mstalt="452101"]]
1090
1091
1092 (% style="color:#4f81bd" %)**Downlink Command:**
1093
1094 No downlink commands for feature
1095
1096
1097 == 4.12 Clear Flash Record ==
1098
1099
1100 Feature: Clear flash storage for data log feature.
1101
1102
1103 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1104
1105 [[image:image-20220523151556-13.png||_mstalt="454129"]]
1106
1107
1108 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1109
1110 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1111
1112
1113 == 4.13 Auto Send None-ACK messages ==
1114
1115
1116 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.
1117
1118
1119 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1120
1121 The default factory setting is 0
1122
1123 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:367px" %)
1124 |=(% style="width: 158px;" %)**Command Example**|=(% style="width: 118px;" %)**Function**|=(% style="width: 87px;" %)**Response**
1125 |(% style="width:158px" %)AT+PNACKMD=1|(% style="width:118px" %)Poll None-ACK message|(% style="width:87px" %)OK
1126
1127 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1128
1129 * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1130
1131
1132 == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1133
1134
1135 Feature: Set internal and external temperature sensor alarms.
1136
1137 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %)
1138 |=(% style="width: 250px;" %)**Command Example**|=(% style="width: 200px;" %)**Function**|=(% style="width: 50px;" %)**Response**
1139 |(% style="width:268px" %)AT+WMOD=parameter1,parameter2,parameter3,parameter4|(% style="width:255px" %)Set internal and external temperature sensor alarms|(% style="width:181px" %)OK
1140
1141 (% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
1142
1143 (% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
1144
1145 0): Cancel
1146
1147 1): Threshold alarm
1148
1149 2): Fluctuation alarm
1150
1151
1152 (% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
1153
1154 (% 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.**
1155
1156
1157 (% style="color:#037691" %) **Parameter 3 and parameter 4:**
1158
1159 1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
1160
1161 Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
1162
1163
1164 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.
1165
1166 Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
1167
1168 If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
1169
1170
1171 (% style="color:#4f81bd" %)**Downlink Command: 0xA5**
1172
1173 0xA5 00 ~-~- AT+WMOD=0.
1174
1175 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 )
1176
1177 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))
1178
1179 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1180
1181 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.
1182
1183
1184 = 5. Battery & How to replace =
1185
1186 == 5.1 Battery Type ==
1187
1188
1189 (((
1190 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.
1191 )))
1192
1193 (((
1194 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1195
1196
1197 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
1198 )))
1199
1200 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.
1201
1202
1203 == 5.2 Replace Battery ==
1204
1205
1206 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.
1207
1208 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
1209
1210
1211 == 5.3 Battery Life Analyze ==
1212
1213
1214 (((
1215 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:
1216 [[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]]
1217 )))
1218
1219
1220 (((
1221 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]]
1222 )))
1223
1224
1225 = 6. FAQ =
1226
1227 == 6.1 How to use AT Command? ==
1228
1229
1230 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.
1231
1232 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1233
1234
1235 **Connection:**
1236
1237 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1238 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1239 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1240
1241 (((
1242 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.
1243 )))
1244
1245
1246 Input password and ATZ to activate LHT65N-E5,As shown below:
1247
1248 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1249
1250
1251 AT Command List is as below:
1252
1253 AT+<CMD>? :  Help on <CMD>
1254
1255 AT+<CMD> :  Run <CMD>
1256
1257 AT+<CMD>=<value> :  Set the value
1258
1259 AT+<CMD>=? :  Get the value
1260
1261 AT+DEBUG:  Set more info output
1262
1263 ATZ:  Trig a reset of the MCU
1264
1265 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1266
1267 AT+DEUI:  Get or Set the Device EUI
1268
1269 AT+DADDR:  Get or Set the Device Address
1270
1271 AT+APPKEY:  Get or Set the Application Key
1272
1273 AT+NWKSKEY:  Get or Set the Network Session Key
1274
1275 AT+APPSKEY:  Get or Set the Application Session Key
1276
1277 AT+APPEUI:  Get or Set the Application EUI
1278
1279 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1280
1281 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1282
1283 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1284
1285 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1286
1287 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1288
1289 AT+RX2FQ:  Get or Set the Rx2 window frequency
1290
1291 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1292
1293 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1294
1295 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1296
1297 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1298
1299 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1300
1301 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1302
1303 AT+NWKID:  Get or Set the Network ID
1304
1305 AT+FCU:  Get or Set the Frame Counter Uplink
1306
1307 AT+FCD:  Get or Set the Frame Counter Downlink
1308
1309 AT+CLASS:  Get or Set the Device Class
1310
1311 AT+JOIN:  Join network
1312
1313 AT+NJS:  Get the join status
1314
1315 AT+SENDB:  Send hexadecimal data along with the application port
1316
1317 AT+SEND:  Send text data along with the application port
1318
1319 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1320
1321 AT+RECV:  Print last received data in raw format
1322
1323 AT+VER:  Get current image version and Frequency Band
1324
1325 AT+CFM:  Get or Set the confirmation mode (0-1)
1326
1327 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1328
1329 AT+SNR:  Get the SNR of the last received packet
1330
1331 AT+RSSI:  Get the RSSI of the last received packet
1332
1333 AT+TDC:  Get or set the application data transmission interval in ms
1334
1335 AT+PORT:  Get or set the application port
1336
1337 AT+DISAT:  Disable AT commands
1338
1339 AT+PWORD: Set password, max 9 digits
1340
1341 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1342
1343 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1344
1345 AT+PDTA:  Print the sector data from start page to stop page
1346
1347 AT+PLDTA:  Print the last few sets of data
1348
1349 AT+CLRDTA:  Clear the storage, record position back to 1st
1350
1351 AT+SLEEP:  Set sleep mode
1352
1353 AT+EXT:  Get or Set external sensor model
1354
1355 AT+BAT:  Get the current battery voltage in mV
1356
1357 AT+CFG:  Print all configurations
1358
1359 AT+WMOD:  Get or Set Work Mode
1360
1361 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1362
1363 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1364
1365 AT+SETCNT:  Set the count at present
1366
1367 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1368
1369 AT+RPL:  Get or set response level
1370
1371 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1372
1373 AT+LEAPSEC:  Get or Set Leap Second
1374
1375 AT+SYNCMOD:  Get or Set time synchronization method
1376
1377 AT+SYNCTDC:  Get or set time synchronization interval in day
1378
1379 AT+PID:  Get or set the PID
1380
1381
1382 == 6.2 Where to use AT commands and Downlink commands ==
1383
1384
1385 **AT commands：**
1386
1387 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
1388
1389
1390 **Downlink commands:**
1391
1392
1393
1394 (% style="color:blue" %)**TTN:**
1395
1396 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1397
1398
1399
1400 (% style="color:blue" %)**Helium：**
1401
1402 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1403
1404
1405
1406 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1407
1408
1409 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1410
1411
1412 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1413
1414
1415
1416 (% style="color:blue" %)**Aws:**
1417
1418 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1419
1420
1421 == 6.3 How to change the uplink interval？ ==
1422
1423
1424 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);"]]
1425
1426
1427 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1428
1429
1430 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1431
1432 [[image:1655802313617-381.png||_mstalt="293917"]]
1433
1434
1435 (((
1436 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.
1437 )))
1438
1439
1440 Input password and ATZ to activate LHT65N,As shown below:
1441
1442 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1443
1444
1445 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1446
1447
1448 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1449
1450
1451 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1452
1453 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1454
1455
1456
1457 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1458
1459 First connect the four lines；(% style="display:none" %)
1460
1461 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
1462
1463
1464 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1465
1466 [[image:image-20220621170938-2.png||_mstalt="431704"]]
1467
1468
1469
1470 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1471
1472 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1473
1474
1475 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1476
1477
1478 When this interface appears, it indicates that the download has been completed.
1479
1480 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1481
1482
1483 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1484
1485
1486 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1487
1488
1489 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1490
1491
1492 [[image:image-20220623112117-4.png||_mstalt="428350" height="459" width="343"]]
1493
1494
1495 (((
1496 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.
1497 )))
1498
1499
1500 Input password and ATZ to activate LHT65N-E5,As shown below:
1501
1502 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1503
1504
1505 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1506
1507
1508 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1509
1510
1511 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1512
1513 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1514
1515
1516
1517 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1518
1519 First connect the four lines；
1520
1521 [[image:image-20220623113959-5.png||_mstalt="433485" height="528" width="397"]]
1522
1523 Connect A8 and GND with Dupont wire for a while and then separate，enter reset mode
1524
1525
1526
1527 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1528
1529 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1530
1531
1532 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1533
1534
1535 When this interface appears, it indicates that the download has been completed.
1536
1537 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1538
1539
1540 Finally,Disconnect 3.3v，Connect A8 and GND with Dupont wire for a while and then separate，exit reset mode
1541
1542
1543 = 7. Order Info =
1544
1545
1546 Part Number: (% style="color:#4f81bd" %)** LHT65N-E5-XX**
1547
1548 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1549
1550 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1551 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1552 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1553 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1554 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1555 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
1556 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1557 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1558
1559
1560 = 8. Packing Info =
1561
1562
1563 **Package Includes**:
1564
1565 * LHT65N-E5 Temperature/Humidity/Illuminance Sensor x 1
1566
1567 **Dimension and weight**:
1568
1569 * Device Size:  10 x 10 x 3.5 mm
1570 * Device Weight: 120.5g
1571
1572
1573 = 9. Reference material =
1574
1575
1576 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1577
1578
1579 = 10. FCC Warning =
1580
1581
1582 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1583
1584 (1) This device may not cause harmful interference；
1585
1586 (2) this device must accept any interference received, including interference that may cause undesired operation.

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