Version 15.1 by Edwin Chen on 2023/04/09 09:02
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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-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:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220523152839-18.png||_mstalt="457613"]]
219
220
221 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@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 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
232
233 * Temperature:  0x0ABB/100=27.47℃
234
235 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-3.png||_mstalt="432120"]]
236
237 * Temperature:  (0xF5C6-65536)/100=-26.18℃
238
239 === 2.4.4 Built-in Humidity ===
240
241 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
242
243 * Humidity:    0x025C/10=60.4%
244
245 === 2.4.5 Ext value ===
246
247 ==== 2.4.5.1 Ext~=0x0A, PIR Sensor ====
248
249 [[image:image-20221224161634-2.png||height="138" width="851"]]
250
251
252 ==== 2.4.5.2 Ext Value ====
253
254 There are 4 bytes in Ext Value field.
255
256 Bit0 of byte 8th shows if this uplink is generate by PIR activity.
257
258 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:490px" %)
259 |=(% style="width: 147px;" %)(((
260 **The 8^^th^^ byte**
261 )))|=(% style="width: 108px;" %)(((
262 **Bit 1~~7**
263 )))|=(% style="width: 228px;" %)(((
264 **Bit 0**
265 )))
266 |(% style="width:147px" %)(((
267 **Value**
268 )))|(% style="width:108px" %)(((
269 Reserve
270 )))|(% style="width:228px" %)(((
271 (((
272 0: Normal Uplink
273
274 1: Uplink by activity detected
275 )))
276 )))
277
278 **Note**: Uplink by activity is disable by default.
279
280
281 The 9^^th^^ ~~ 11^^st^^  byte: Movement Detect Count.
282
283 0x00 E5 09 : Total detect 58633 activity since end node start.
284
285
286 == 2.5 Show data on Datacake ==
287
288 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:
289
290 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
291
292 (% 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.
293
294 Add Datacake:
295
296 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
297
298
299
300 Select default key as Access Key:
301
302
303 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
304
305
306 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
307
308
309 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20221224161935-5.png||height="523" width="409"]]
310
311
312 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20221224161957-6.png||height="306" width="852"]]
313
314
315
316 == 2.8 LED Indicator ==
317
318
319 The LHT65N-PIR has a triple color LED which for easy showing different stage .
320
321 While user press ACT button, the LED will work as per LED status with ACT button.
322
323 In a normal working state:
324
325 * For each uplink, the BLUE LED or RED LED will blink once.
326 BLUE LED when external sensor is connected.
327 * RED LED when external sensor is not connected
328 * For each success downlink, the PURPLE LED will blink once
329
330 == 2.9 installation ==
331
332 ~1. Don't install LHT65N-PIR outdoor or place where will get wet
333
334 2. Towards the PIR probe to the place where need to monitor activity.
335
336
337
338 = 3. Sensors and Accessories =
339
340 == 3.1 E2 Extension Cable ==
341
342
343 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
344
345
346 **1m long breakout cable for LHT65N-E5. Features:**
347
348 * (((
349 Use for AT Command
350 )))
351 * (((
352 Update firmware for LHT65N-PIR
353 )))
354
355 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
356
357
358 = 4. Configure LHT65N-PIR via AT command or LoRaWAN downlink =
359
360
361 (((
362 Use can configure LHT65N-E5 via AT Command or LoRaWAN Downlink.
363 )))
364
365 * (((
366 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
367 )))
368
369 * (((
370 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
371 )))
372
373 (((
374 There are two kinds of commands to configure LHT65N-E5, they are:
375 )))
376
377 * (((
378 (% style="color:#4f81bd" %)**General Commands**.
379 )))
380
381 (((
382 These commands are to configure:
383 )))
384
385 1. (((
386 General system settings like: uplink interval.
387 )))
388 1. (((
389 LoRaWAN protocol & radio-related commands.
390 )))
391
392 (((
393 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]]
394 )))
395
396 * (((
397 (% style="color:#4f81bd" %)**Commands special design for LHT65N-E5**
398 )))
399
400 (((
401 These commands are only valid for LHT65N-E5, as below:
402 )))
403
404
405 == 4.1 Set Transmit Interval Time ==
406
407
408 Feature: Change LoRaWAN End Node Transmit Interval.
409
410
411 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
412
413 [[image:image-20220523150701-2.png||_mstalt="427453"]]
414
415
416 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
417
418 Format: Command Code (0x01) followed by 3 bytes time value.
419
420 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
421
422 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
423
424 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
425
426 == 4.2 Currently only supports E5 ==
427
428
429 Feature: Set device password, max 9 digits
430
431
432 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
433
434 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
435 |Command Example|Function|Response
436 |AT+EXT=?|Get or Set external sensor model|(((
437 5
438
439 OK
440 )))
441 |AT+EXT=5|(% colspan="2" %)Set external sensor mode to 5
442
443 (% style="color:#4f81bd" %)**Downlink Command:0xA2**
444
445
446 Total bytes: 2 bytes
447
448 **Example:**
449
450 * 0xA205: Set external sensor type to E5
451
452 == 4.3 Set to sleep mode ==
453
454
455 Feature: Set device to sleep mode
456
457 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
458 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
459
460 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
461
462 [[image:image-20220523151218-7.png||_mstalt="430703"]]
463
464
465 (% style="color:#4f81bd" %)**Downlink Command:**
466
467 * There is no downlink command to set to Sleep mode.
468
469
470 = 5. Battery & Power Consumption =
471
472 LHT65N-PIR use **CR17450** battery pack. See below link for detail information about the battery info and how to replace.
473
474 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
475
476
477 = 6. OTA firmware update =
478
479 Please see this link for how to do OTA firmware update: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
480
481
482 = 6. FAQ =
483
484 == 6.1 How to use AT Command? ==
485
486
487 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.
488
489
490 [[image:image-20220615153355-1.png||_mstalt="430222"]]
491
492
493
494 [[image:1655802313617-381.png||_mstalt="293917"]]
495
496
497
498 (((
499 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.
500 )))
501
502 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
503
504 AT Command List is as below:
505
506 AT+<CMD>? :  Help on <CMD>
507
508 AT+<CMD> :  Run <CMD>
509
510 AT+<CMD>=<value> :  Set the value
511
512 AT+<CMD>=? :  Get the value
513
514 AT+DEBUG:  Set more info output
515
516 ATZ:  Trig a reset of the MCU
517
518 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
519
520 AT+DEUI:  Get or Set the Device EUI
521
522 AT+DADDR:  Get or Set the Device Address
523
524 AT+APPKEY:  Get or Set the Application Key
525
526 AT+NWKSKEY:  Get or Set the Network Session Key
527
528 AT+APPSKEY:  Get or Set the Application Session Key
529
530 AT+APPEUI:  Get or Set the Application EUI
531
532 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
533
534 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
535
536 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
537
538 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
539
540 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
541
542 AT+RX2FQ:  Get or Set the Rx2 window frequency
543
544 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
545
546 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
547
548 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
549
550 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
551
552 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
553
554 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
555
556 AT+NWKID:  Get or Set the Network ID
557
558 AT+FCU:  Get or Set the Frame Counter Uplink
559
560 AT+FCD:  Get or Set the Frame Counter Downlink
561
562 AT+CLASS:  Get or Set the Device Class
563
564 AT+JOIN:  Join network
565
566 AT+NJS:  Get the join status
567
568 AT+SENDB:  Send hexadecimal data along with the application port
569
570 AT+SEND:  Send text data along with the application port
571
572 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
573
574 AT+RECV:  Print last received data in raw format
575
576 AT+VER:  Get current image version and Frequency Band
577
578 AT+CFM:  Get or Set the confirmation mode (0-1)
579
580 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
581
582 AT+SNR:  Get the SNR of the last received packet
583
584 AT+RSSI:  Get the RSSI of the last received packet
585
586 AT+TDC:  Get or set the application data transmission interval in ms
587
588 AT+PORT:  Get or set the application port
589
590 AT+DISAT:  Disable AT commands
591
592 AT+PWORD: Set password, max 9 digits
593
594 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
595
596 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
597
598 AT+PDTA:  Print the sector data from start page to stop page
599
600 AT+PLDTA:  Print the last few sets of data
601
602 AT+CLRDTA:  Clear the storage, record position back to 1st
603
604 AT+SLEEP:  Set sleep mode
605
606 AT+EXT:  Get or Set external sensor model
607
608 AT+BAT:  Get the current battery voltage in mV
609
610 AT+CFG:  Print all configurations
611
612 AT+WMOD:  Get or Set Work Mode
613
614 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
615
616 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
617
618 AT+SETCNT:  Set the count at present
619
620 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
621
622 AT+RPL:  Get or set response level
623
624 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
625
626 AT+LEAPSEC:  Get or Set Leap Second
627
628 AT+SYNCMOD:  Get or Set time synchronization method
629
630 AT+SYNCTDC:  Get or set time synchronization interval in day
631
632 AT+PID:  Get or set the PID
633
634
635 == 6.2 Where to use AT commands and Downlink commands ==
636
637
638 **AT commands：**
639
640 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
641
642
643 **Downlink commands:**
644
645
646
647 (% style="color:blue" %)**TTN:**
648
649 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
650
651
652
653 (% style="color:blue" %)**Helium：**
654
655 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
656
657
658
659 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
660
661
662 [[image:image-20220615094850-6.png||_mstalt="433082"]]
663
664
665 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
666
667
668
669 (% style="color:blue" %)**Aws:**
670
671 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
672
673
674 == 6.3 How to change the uplink interval？ ==
675
676
677 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);"]]
678
679
680
681 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
682
683
684 == 6.4 How to use TTL-USB to connect PC to upgrade firmware? ==
685
686
687 [[image:image-20220615153355-1.png||_mstalt="430222"]]
688
689
690 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
691
692 [[image:image-20220615170542-5.png||_mstalt="430638"]]
693
694
695
696 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
697
698 First connect the four lines；(% style="display:none" %)
699
700 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
701
702
703 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
704
705 [[image:image-20220621170938-2.png||_mstalt="431704"]]
706
707
708
709 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
710
711 [[image:image-20220615171334-6.png||_mstalt="431028"]]
712
713
714 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
715
716
717 When this interface appears, it indicates that the download has been completed.
718
719 [[image:image-20220620160723-8.png||_mstalt="430703"]]
720
721
722 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
723
724
725
726 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
727
728
729 = 7. Order Info =
730
731
732 Part Number: (% style="color:#4f81bd" %)** LHT65N-PIR-XX**
733
734 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
735
736 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
737 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
738 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
739 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
740 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
741 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
742 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
743 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
744
745 = 8. Packing Info =
746
747
748 **Package Includes**:
749
750 * LHT65N-PIR Temperature/Humidity/PIR Sensor x 1
751
752 **Dimension and weight**:
753
754 * Device Size:  10 x 10 x 3.5 mm
755 * Device Weight: 120.5g
756
757 = 9. Reference material =
758
759
760 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
761
762 = 10. FCC Warning =
763
764
765 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
766
767 (1) This device may not cause harmful interference；
768
769 (2) this device must accept any interference received, including interference that may cause undesired operation.
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