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Version 10.1 by Edwin Chen on 2023/04/09 08:27
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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-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
232 [[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"]]
233
234 * Temperature:  0x0ABB/100=27.47℃
235
236 [[image:Main.User Manual for LoRaWAN End Nodes.LHT65N-E5 LoRaWAN Temperature_Humidity & Illuminance Sensor User Manual.WebHome@image-20220522235639-3.png||_mstalt="432120"]]
237
238 * Temperature:  (0xF5C6-65536)/100=-26.18℃
239
240 === 2.4.4 Built-in Humidity ===
241
242 [[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"]]
243
244 * Humidity:    0x025C/10=60.4%
245
246 === 2.4.5 Ext value ===
247
248 ==== 2.4.5.1 Ext~=0x0A, PIR Sensor ====
249
250
251 [[image:image-20221224161634-2.png||height="138" width="851"]]
252
253
254 * Illumination=0x005E=94 lux
255
256 The last 2 bytes of data are meaningless
257
258 [[image:image-20221224161725-3.png]]
259
260 * When the sensor is not connected or not connected properly, will show "NULL"
261
262 The last 2 bytes of data are meaningless
263
264
265 == 2.5 Show data on Datacake ==
266
267 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:
268
269 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
270
271 (% 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.
272
273 Add Datacake:
274
275 [[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
276
277
278
279 Select default key as Access Key:
280
281
282 [[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
283
284
285 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
286
287
288 [[image:image-20221224161935-5.png||height="523" width="409"]]
289
290
291 [[image:image-20221224161957-6.png||height="306" width="852"]]
292
293
294
295 == 2.8 LED Indicator ==
296
297
298 The LHT65N-PIR has a triple color LED which for easy showing different stage .
299
300 While user press ACT button, the LED will work as per LED status with ACT button.
301
302 In a normal working state:
303
304 * For each uplink, the BLUE LED or RED LED will blink once.
305 BLUE LED when external sensor is connected.
306 * RED LED when external sensor is not connected
307 * For each success downlink, the PURPLE LED will blink once
308
309 == 2.9 installation ==
310
311
312 [[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
313
314
315 = 3. Sensors and Accessories =
316
317 == 3.1 E2 Extension Cable ==
318
319
320 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
321
322
323 **1m long breakout cable for LHT65N-E5. Features:**
324
325 * (((
326 Use for AT Command
327 )))
328 * (((
329 Update firmware for LHT65N-PIR
330 )))
331
332 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
333
334
335 = 4. Configure LHT65N-PIR via AT command or LoRaWAN downlink =
336
337
338 (((
339 Use can configure LHT65N-E5 via AT Command or LoRaWAN Downlink.
340 )))
341
342 * (((
343 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
344 )))
345
346 * (((
347 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
348 )))
349
350 (((
351 There are two kinds of commands to configure LHT65N-E5, they are:
352 )))
353
354 * (((
355 (% style="color:#4f81bd" %)**General Commands**.
356 )))
357
358 (((
359 These commands are to configure:
360 )))
361
362 1. (((
363 General system settings like: uplink interval.
364 )))
365 1. (((
366 LoRaWAN protocol & radio-related commands.
367 )))
368
369 (((
370 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]]
371 )))
372
373 * (((
374 (% style="color:#4f81bd" %)**Commands special design for LHT65N-E5**
375 )))
376
377 (((
378 These commands are only valid for LHT65N-E5, as below:
379 )))
380
381
382 == 4.1 Set Transmit Interval Time ==
383
384
385 Feature: Change LoRaWAN End Node Transmit Interval.
386
387
388 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
389
390 [[image:image-20220523150701-2.png||_mstalt="427453"]]
391
392
393 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
394
395 Format: Command Code (0x01) followed by 3 bytes time value.
396
397 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
398
399 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
400
401 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
402
403 == 4.2 Currently only supports E5 ==
404
405
406 Feature: Set device password, max 9 digits
407
408
409 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
410
411 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
412 |Command Example|Function|Response
413 |AT+EXT=?|Get or Set external sensor model|(((
414 5
415
416 OK
417 )))
418 |AT+EXT=5|(% colspan="2" %)Set external sensor mode to 5
419
420 (% style="color:#4f81bd" %)**Downlink Command:0xA2**
421
422
423 Total bytes: 2 bytes
424
425 **Example:**
426
427 * 0xA205: Set external sensor type to E5
428
429 == 4.3 Set to sleep mode ==
430
431
432 Feature: Set device to sleep mode
433
434 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
435 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
436
437 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
438
439 [[image:image-20220523151218-7.png||_mstalt="430703"]]
440
441
442 (% style="color:#4f81bd" %)**Downlink Command:**
443
444 * There is no downlink command to set to Sleep mode.
445
446 = 5. Battery & How to replace =
447
448 == 5.1 Battery Type ==
449
450
451 (((
452 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.
453 )))
454
455 (((
456 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
457
458
459 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
460 )))
461
462 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.
463
464
465 == 5.2 Replace Battery ==
466
467
468 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.
469
470 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
471
472
473 == 5.3 Battery Life Analyze ==
474
475
476 (((
477 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:
478 [[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]]
479 )))
480
481
482 (((
483 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]]
484 )))
485
486
487 = 6. FAQ =
488
489 == 6.1 How to use AT Command? ==
490
491
492 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.
493
494
495 [[image:image-20220615153355-1.png||_mstalt="430222"]]
496
497
498
499 [[image:1655802313617-381.png||_mstalt="293917"]]
500
501
502
503 (((
504 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.
505 )))
506
507 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
508
509 AT Command List is as below:
510
511 AT+<CMD>? :  Help on <CMD>
512
513 AT+<CMD> :  Run <CMD>
514
515 AT+<CMD>=<value> :  Set the value
516
517 AT+<CMD>=? :  Get the value
518
519 AT+DEBUG:  Set more info output
520
521 ATZ:  Trig a reset of the MCU
522
523 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
524
525 AT+DEUI:  Get or Set the Device EUI
526
527 AT+DADDR:  Get or Set the Device Address
528
529 AT+APPKEY:  Get or Set the Application Key
530
531 AT+NWKSKEY:  Get or Set the Network Session Key
532
533 AT+APPSKEY:  Get or Set the Application Session Key
534
535 AT+APPEUI:  Get or Set the Application EUI
536
537 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
538
539 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
540
541 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
542
543 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
544
545 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
546
547 AT+RX2FQ:  Get or Set the Rx2 window frequency
548
549 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
550
551 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
552
553 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
554
555 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
556
557 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
558
559 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
560
561 AT+NWKID:  Get or Set the Network ID
562
563 AT+FCU:  Get or Set the Frame Counter Uplink
564
565 AT+FCD:  Get or Set the Frame Counter Downlink
566
567 AT+CLASS:  Get or Set the Device Class
568
569 AT+JOIN:  Join network
570
571 AT+NJS:  Get the join status
572
573 AT+SENDB:  Send hexadecimal data along with the application port
574
575 AT+SEND:  Send text data along with the application port
576
577 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
578
579 AT+RECV:  Print last received data in raw format
580
581 AT+VER:  Get current image version and Frequency Band
582
583 AT+CFM:  Get or Set the confirmation mode (0-1)
584
585 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
586
587 AT+SNR:  Get the SNR of the last received packet
588
589 AT+RSSI:  Get the RSSI of the last received packet
590
591 AT+TDC:  Get or set the application data transmission interval in ms
592
593 AT+PORT:  Get or set the application port
594
595 AT+DISAT:  Disable AT commands
596
597 AT+PWORD: Set password, max 9 digits
598
599 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
600
601 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
602
603 AT+PDTA:  Print the sector data from start page to stop page
604
605 AT+PLDTA:  Print the last few sets of data
606
607 AT+CLRDTA:  Clear the storage, record position back to 1st
608
609 AT+SLEEP:  Set sleep mode
610
611 AT+EXT:  Get or Set external sensor model
612
613 AT+BAT:  Get the current battery voltage in mV
614
615 AT+CFG:  Print all configurations
616
617 AT+WMOD:  Get or Set Work Mode
618
619 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
620
621 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
622
623 AT+SETCNT:  Set the count at present
624
625 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
626
627 AT+RPL:  Get or set response level
628
629 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
630
631 AT+LEAPSEC:  Get or Set Leap Second
632
633 AT+SYNCMOD:  Get or Set time synchronization method
634
635 AT+SYNCTDC:  Get or set time synchronization interval in day
636
637 AT+PID:  Get or set the PID
638
639
640 == 6.2 Where to use AT commands and Downlink commands ==
641
642
643 **AT commands：**
644
645 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
646
647
648 **Downlink commands:**
649
650
651
652 (% style="color:blue" %)**TTN:**
653
654 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
655
656
657
658 (% style="color:blue" %)**Helium：**
659
660 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
661
662
663
664 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
665
666
667 [[image:image-20220615094850-6.png||_mstalt="433082"]]
668
669
670 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
671
672
673
674 (% style="color:blue" %)**Aws:**
675
676 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
677
678
679 == 6.3 How to change the uplink interval？ ==
680
681
682 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);"]]
683
684
685
686 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
687
688
689 == 6.4 How to use TTL-USB to connect PC to upgrade firmware? ==
690
691
692 [[image:image-20220615153355-1.png||_mstalt="430222"]]
693
694
695 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
696
697 [[image:image-20220615170542-5.png||_mstalt="430638"]]
698
699
700
701 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
702
703 First connect the four lines；(% style="display:none" %)
704
705 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
706
707
708 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
709
710 [[image:image-20220621170938-2.png||_mstalt="431704"]]
711
712
713
714 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
715
716 [[image:image-20220615171334-6.png||_mstalt="431028"]]
717
718
719 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
720
721
722 When this interface appears, it indicates that the download has been completed.
723
724 [[image:image-20220620160723-8.png||_mstalt="430703"]]
725
726
727 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
728
729
730
731 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
732
733
734 = 7. Order Info =
735
736
737 Part Number: (% style="color:#4f81bd" %)** LHT65N-PIR-XX**
738
739 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
740
741 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
742 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
743 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
744 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
745 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
746 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
747 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
748 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
749
750 = 8. Packing Info =
751
752
753 **Package Includes**:
754
755 * LHT65N-PIR Temperature/Humidity/PIR Sensor x 1
756
757 **Dimension and weight**:
758
759 * Device Size:  10 x 10 x 3.5 mm
760 * Device Weight: 120.5g
761
762 = 9. Reference material =
763
764
765 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
766
767 = 10. FCC Warning =
768
769
770 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
771
772 (1) This device may not cause harmful interference；
773
774 (2) this device must accept any interference received, including interference that may cause undesired operation.