Skip to Content
Version 9.1 by Edwin Chen on 2023/04/09 08:24
Show last authors
1 (% style="text-align:center" %)
2 [[image:image-20221206143242-2.png||height="602" width="551"]]
3
4
5
6
7
8
9
10
11
12 **Table of Contents：**
13
14 {{toc/}}
15
16
17
18
19
20
21
22
23
24 = 1. Introduction =
25
26 == 1.1 What is LHT65N-PIR Temperature,Humidity & PIR Sensor ==
27
28 The Dragino (% style="color:blue" %)**LHT65N-PIR Temperature, Humidity & PIR 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 PIR Probe**(%%)**.** LHT65N-PIR can detect environment Temperature & Humdity, it also detects (% style="color:blue" %)**People Activity**(%%) via PIR probe and them send these info to LoRaWAN IoT Server.
29
30 The LHT65N-PIR 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.
31
32 LHT65N-PIR has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) which can be used for more than 5 years*.
33
34 LHT65N-PIR supports (% style="color:blue" %)**wireless configure & OTA update**(%%) which make user easy to use.
35
36 LHT65N-PIR is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
37
38
39 **~*~***The actual battery life depends on how often to send data, please see battery analyzer chapter.
40
41
42 == 1.2 Features ==
43
44 * LoRaWAN v1.0.3 Class A protocol
45 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
46 * AT Commands to change parameters
47 * Remote configure parameters via LoRaWAN Downlink
48 * Support wireless OTA update firmware
49 * Firmware upgradeable via program port
50 * Built-in 2400mAh battery for up to 5 years of use.
51 * Built-in Temperature & Humidity sensor
52 * External PIR Sensor
53 * Tri-color LED to indicate working status(% style="display:none" %)
54
55 == 1.3 Specification ==
56
57
58 (% style="color:#037691" %)**Built-in Temperature Sensor:**
59
60 * Resolution: 0.01 °C
61 * Accuracy Tolerance : Typ ±0.3 °C
62 * Long Term Drift: < 0.02 °C/yr
63 * Operating Range: -40 ~~ 85 °C
64
65 (% style="color:#037691" %)**Built-in Humidity Sensor:**
66
67 * Resolution: 0.04 %RH
68 * Accuracy Tolerance : Typ ±3 %RH
69 * Long Term Drift: < 0.02 °C/yr
70 * Operating Range: 0 ~~ 96 %RH
71
72 (% class="mark" style="color:#037691" %)**External PIR Sensor:**
73
74 * (% class="mark" %)Base on BH1750 Illumination Sensor
75 * (% class="mark" %)Cable Length : 50cm
76 * (% class="mark" %)Resolution: 1 lx
77 * (% class="mark" %)Range: 0-65535 lx
78 * (% class="mark" %)Operating Range: -40 °C ~~ 85 °C
79 *
80
81 = 2. Connect LHT65N-PIR to IoT Server =
82
83 == 2.1 How does LHT65N-PIR work? ==
84
85 LHT65N-PIR is configured as LoRaWAN OTAA Class A sensor by default. Each LHT65N-PIR is shipped with a worldwide unique set of OTAA keys. To use LHT65N-PIR in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N-PIR.
86
87 If LHT65N-PIR is within the coverage of this LoRaWAN network. LHT65N-PIR can join the LoRaWAN network automatically. After successfully joining, LHT65N-PIR will start to measure environment temperature, humidity & people activity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
88
89
90 == 2.2 How to Activate LHT65N-PIR? ==
91
92 The LHT65N-PIR has two working modes:
93
94 * (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N-PIR doesn't have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
95
96 * (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N-PIR 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-PIR will be in STOP mode (IDLE mode), in STOP mode, the PIR sensor is still working to detect people activity in low power consumption.
97
98 The LHT65N-PIR is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
99
100
101 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220515123819-1.png?width=317&height=379&rev=1.1||alt="image-20220515123819-1.png" height="379" width="317"]]
102
103 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N-E5%20LoRaWAN%20Temperature_Humidity%20%26%20Illuminance%20Sensor%20User%20Manual/WebHome/image-20220525110604-2.png?rev=1.1||alt="image-20220525110604-2.png"]]
104
105
106 == 2.3 Example to join LoRaWAN network ==
107
108
109 (% class="wikigeneratedid" %)
110 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.
111
112
113 (% class="wikigeneratedid" %)
114 [[image:image-20230409080812-1.png||height="487" width="785"]]
115
116
117 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-PIR. Next we need to add the LHT65N-PIR device in TTN V3:
118
119
120 === 2.3.1 Step 1: Create Device n TTN ===
121
122
123 Create a device in TTN V3 with the OTAA keys from LHT65N-PIR.
124
125 Each LHT65N-PIR is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
126
127 [[image:image-20220617150003-1.jpeg||_mstalt="5426434"]]
128
129 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
130
131 Add APP EUI in the application.
132
133
134 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522232916-3.png||_mstalt="430495"]]
135
136
137 [[image:image-20220522232932-4.png||_mstalt="430157"]]
138
139
140 [[image:image-20220522232954-5.png||_mstalt="431847"]]
141
142
143
144 (% style="color:red" %)**Note: LHT65N-PIR use same payload decoder as LHT65.**
145
146
147 Input APP EUI,  APP KEY and DEV EUI:
148
149
150 [[image:image-20220522233118-7.png||_mstalt="430430"]]
151
152
153 === 2.3.2 Step 2: Activate LHT65N-PIR by pressing the ACT button for more than 5 seconds. ===
154
155 Use ACT button to activate LHT65N-PIR 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.
156 [[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
157
158
159 == 2.4 Uplink Payload   ( Fport~=2) ==
160
161 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
162
163 After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
164
165 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:390px" %)
166 |=(% style="width: 60px;" %)(((
167 **Size(bytes)**
168 )))|=(% style="width: 30px;" %)(((
169 **2**
170 )))|=(% style="width: 100px;" %)(((
171 **2**
172 )))|=(% style="width: 100px;" %)(((
173 **2**
174 )))|=(% style="width: 50px;" %)(((
175 **1**
176 )))|=(% style="width: 50px;" %)(((
177 **4**
178 )))
179 |(% style="width:97px" %)(((
180 **Value**
181 )))|(% style="width:39px" %)(((
182 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
183 )))|(% style="width:100px" %)(((
184 (((
185 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
186 )))
187 )))|(% style="width:77px" %)(((
188 (((
189 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
190 )))
191 )))|(% style="width:47px" %)(((
192 [[Ext>>||anchor="H2.4.5Ext23"]] #
193 )))|(% style="width:51px" %)(((
194 [[Ext value>>||anchor="H2.4.6Extvalue"]]
195 )))
196
197 * The First 6 bytes: has fix meanings for every LHT65N-PIR.
198 * The 7th byte (EXT #): defines the external sensor model. It can be 0x0A for LHT65N-PIR
199 * The 8^^th^^ byte: Alarm Bit (if this uplink is from periodically or movement)
200 * The 9^^th^^ ~~ 11^^st^^  byte: Movement Detect Count.
201
202 === 2.4.1 Decoder in TTN V3 ===
203
204
205 When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N-PIR decoder in TTNv3 for friendly reading.
206
207 Below is the position to put the decoder and LHT65N-PIR decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
208
209
210 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
211
212
213 === 2.4.2 BAT-Battery Info ===
214
215
216 These two bytes of BAT include the battery state and the actually voltage
217
218 [[image:image-20220523152839-18.png||_mstalt="457613"]]
219
220
221 [[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
222
223
224 Check the battery voltage for LHT65N-PIR.
225
226 * BAT status=(0xcba4>>14)&0xFF=11(B)，very good
227 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
228
229 === 2.4.3 Built-in Temperature ===
230
231
232 [[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
233
234 * Temperature:  0x0ABB/100=27.47℃
235
236 [[image:image-20220522235639-3.png||_mstalt="432120"]]
237
238 * Temperature:  (0xF5C6-65536)/100=-26.18℃
239
240 === 2.4.4 Built-in Humidity ===
241
242
243 [[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
244
245 * Humidity:    0x025C/10=60.4%
246
247 === 2.4.5 Ext value ===
248
249 ==== 2.4.5.1 Ext~=0x05, Illuminance Sensor ====
250
251
252 [[image:image-20221224161634-2.png||height="138" width="851"]]
253
254
255 * Illumination=0x005E=94 lux
256
257 The last 2 bytes of data are meaningless
258
259 [[image:image-20221224161725-3.png]]
260
261 * When the sensor is not connected or not connected properly, will show "NULL"
262
263 The last 2 bytes of data are meaningless
264
265
266 == 2.5 Show data on Datacake ==
267
268
269 (((
270 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:
271 )))
272
273 (((
274
275 )))
276
277 (((
278 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
279 )))
280
281 (((
282 (% 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.
283 )))
284
285
286
287 (((
288 Add Datacake:
289 )))
290
291
292 [[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
293
294
295
296 Select default key as Access Key:
297
298
299 [[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
300
301
302 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
303
304
305 [[image:image-20221224161935-5.png||height="523" width="409"]]
306
307
308 [[image:image-20221224161957-6.png||height="306" width="852"]]
309
310
311
312 == 2.8 LED Indicator ==
313
314
315 The LHT65N-PIR has a triple color LED which for easy showing different stage .
316
317 While user press ACT button, the LED will work as per LED status with ACT button.
318
319 In a normal working state:
320
321 * For each uplink, the BLUE LED or RED LED will blink once.
322 BLUE LED when external sensor is connected.
323 * RED LED when external sensor is not connected
324 * For each success downlink, the PURPLE LED will blink once
325
326 == 2.9 installation ==
327
328
329 [[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
330
331
332 = 3. Sensors and Accessories =
333
334 == 3.1 E2 Extension Cable ==
335
336
337 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
338
339
340 **1m long breakout cable for LHT65N-E5. Features:**
341
342 * (((
343 Use for AT Command
344 )))
345 * (((
346 Update firmware for LHT65N-PIR
347 )))
348
349 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
350
351
352 = 4. Configure LHT65N-PIR via AT command or LoRaWAN downlink =
353
354
355 (((
356 Use can configure LHT65N-E5 via AT Command or LoRaWAN Downlink.
357 )))
358
359 * (((
360 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
361 )))
362
363 * (((
364 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
365 )))
366
367 (((
368 There are two kinds of commands to configure LHT65N-E5, they are:
369 )))
370
371 * (((
372 (% style="color:#4f81bd" %)**General Commands**.
373 )))
374
375 (((
376 These commands are to configure:
377 )))
378
379 1. (((
380 General system settings like: uplink interval.
381 )))
382 1. (((
383 LoRaWAN protocol & radio-related commands.
384 )))
385
386 (((
387 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]]
388 )))
389
390 * (((
391 (% style="color:#4f81bd" %)**Commands special design for LHT65N-E5**
392 )))
393
394 (((
395 These commands are only valid for LHT65N-E5, as below:
396 )))
397
398
399 == 4.1 Set Transmit Interval Time ==
400
401
402 Feature: Change LoRaWAN End Node Transmit Interval.
403
404
405 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
406
407 [[image:image-20220523150701-2.png||_mstalt="427453"]]
408
409
410 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
411
412 Format: Command Code (0x01) followed by 3 bytes time value.
413
414 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
415
416 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
417
418 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
419
420 == 4.2 Currently only supports E5 ==
421
422
423 Feature: Set device password, max 9 digits
424
425
426 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
427
428 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
429 |Command Example|Function|Response
430 |AT+EXT=?|Get or Set external sensor model|(((
431 5
432
433 OK
434 )))
435 |AT+EXT=5|(% colspan="2" %)Set external sensor mode to 5
436
437 (% style="color:#4f81bd" %)**Downlink Command:0xA2**
438
439
440 Total bytes: 2 bytes
441
442 **Example:**
443
444 * 0xA205: Set external sensor type to E5
445
446 == 4.3 Set to sleep mode ==
447
448
449 Feature: Set device to sleep mode
450
451 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
452 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
453
454 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
455
456 [[image:image-20220523151218-7.png||_mstalt="430703"]]
457
458
459 (% style="color:#4f81bd" %)**Downlink Command:**
460
461 * There is no downlink command to set to Sleep mode.
462
463 = 5. Battery & How to replace =
464
465 == 5.1 Battery Type ==
466
467
468 (((
469 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.
470 )))
471
472 (((
473 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
474
475
476 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
477 )))
478
479 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.
480
481
482 == 5.2 Replace Battery ==
483
484
485 LHT65N-E5 has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery (3.0v). Any brand should be ok.
486
487 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
488
489
490 == 5.3 Battery Life Analyze ==
491
492
493 (((
494 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:
495 [[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]]
496 )))
497
498
499 (((
500 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]]
501 )))
502
503
504 = 6. FAQ =
505
506 == 6.1 How to use AT Command? ==
507
508
509 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.
510
511
512 [[image:image-20220615153355-1.png||_mstalt="430222"]]
513
514
515
516 [[image:1655802313617-381.png||_mstalt="293917"]]
517
518
519
520 (((
521 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.
522 )))
523
524 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
525
526 AT Command List is as below:
527
528 AT+<CMD>? :  Help on <CMD>
529
530 AT+<CMD> :  Run <CMD>
531
532 AT+<CMD>=<value> :  Set the value
533
534 AT+<CMD>=? :  Get the value
535
536 AT+DEBUG:  Set more info output
537
538 ATZ:  Trig a reset of the MCU
539
540 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
541
542 AT+DEUI:  Get or Set the Device EUI
543
544 AT+DADDR:  Get or Set the Device Address
545
546 AT+APPKEY:  Get or Set the Application Key
547
548 AT+NWKSKEY:  Get or Set the Network Session Key
549
550 AT+APPSKEY:  Get or Set the Application Session Key
551
552 AT+APPEUI:  Get or Set the Application EUI
553
554 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
555
556 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
557
558 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
559
560 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
561
562 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
563
564 AT+RX2FQ:  Get or Set the Rx2 window frequency
565
566 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
567
568 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
569
570 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
571
572 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
573
574 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
575
576 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
577
578 AT+NWKID:  Get or Set the Network ID
579
580 AT+FCU:  Get or Set the Frame Counter Uplink
581
582 AT+FCD:  Get or Set the Frame Counter Downlink
583
584 AT+CLASS:  Get or Set the Device Class
585
586 AT+JOIN:  Join network
587
588 AT+NJS:  Get the join status
589
590 AT+SENDB:  Send hexadecimal data along with the application port
591
592 AT+SEND:  Send text data along with the application port
593
594 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
595
596 AT+RECV:  Print last received data in raw format
597
598 AT+VER:  Get current image version and Frequency Band
599
600 AT+CFM:  Get or Set the confirmation mode (0-1)
601
602 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
603
604 AT+SNR:  Get the SNR of the last received packet
605
606 AT+RSSI:  Get the RSSI of the last received packet
607
608 AT+TDC:  Get or set the application data transmission interval in ms
609
610 AT+PORT:  Get or set the application port
611
612 AT+DISAT:  Disable AT commands
613
614 AT+PWORD: Set password, max 9 digits
615
616 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
617
618 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
619
620 AT+PDTA:  Print the sector data from start page to stop page
621
622 AT+PLDTA:  Print the last few sets of data
623
624 AT+CLRDTA:  Clear the storage, record position back to 1st
625
626 AT+SLEEP:  Set sleep mode
627
628 AT+EXT:  Get or Set external sensor model
629
630 AT+BAT:  Get the current battery voltage in mV
631
632 AT+CFG:  Print all configurations
633
634 AT+WMOD:  Get or Set Work Mode
635
636 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
637
638 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
639
640 AT+SETCNT:  Set the count at present
641
642 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
643
644 AT+RPL:  Get or set response level
645
646 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
647
648 AT+LEAPSEC:  Get or Set Leap Second
649
650 AT+SYNCMOD:  Get or Set time synchronization method
651
652 AT+SYNCTDC:  Get or set time synchronization interval in day
653
654 AT+PID:  Get or set the PID
655
656
657 == 6.2 Where to use AT commands and Downlink commands ==
658
659
660 **AT commands：**
661
662 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
663
664
665 **Downlink commands:**
666
667
668
669 (% style="color:blue" %)**TTN:**
670
671 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
672
673
674
675 (% style="color:blue" %)**Helium：**
676
677 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
678
679
680
681 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
682
683
684 [[image:image-20220615094850-6.png||_mstalt="433082"]]
685
686
687 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
688
689
690
691 (% style="color:blue" %)**Aws:**
692
693 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
694
695
696 == 6.3 How to change the uplink interval？ ==
697
698
699 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);"]]
700
701
702
703 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
704
705
706 == 6.4 How to use TTL-USB to connect PC to upgrade firmware? ==
707
708
709 [[image:image-20220615153355-1.png||_mstalt="430222"]]
710
711
712 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
713
714 [[image:image-20220615170542-5.png||_mstalt="430638"]]
715
716
717
718 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
719
720 First connect the four lines；(% style="display:none" %)
721
722 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
723
724
725 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
726
727 [[image:image-20220621170938-2.png||_mstalt="431704"]]
728
729
730
731 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
732
733 [[image:image-20220615171334-6.png||_mstalt="431028"]]
734
735
736 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
737
738
739 When this interface appears, it indicates that the download has been completed.
740
741 [[image:image-20220620160723-8.png||_mstalt="430703"]]
742
743
744 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
745
746
747
748 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
749
750
751 = 7. Order Info =
752
753
754 Part Number: (% style="color:#4f81bd" %)** LHT65N-PIR-XX**
755
756 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
757
758 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
759 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
760 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
761 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
762 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
763 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
764 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
765 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
766
767 = 8. Packing Info =
768
769
770 **Package Includes**:
771
772 * LHT65N-PIR Temperature/Humidity/PIR Sensor x 1
773
774 **Dimension and weight**:
775
776 * Device Size:  10 x 10 x 3.5 mm
777 * Device Weight: 120.5g
778
779 = 9. Reference material =
780
781
782 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
783
784 = 10. FCC Warning =
785
786
787 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
788
789 (1) This device may not cause harmful interference；
790
791 (2) this device must accept any interference received, including interference that may cause undesired operation.