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Version 189.6 by Xiaoling on 2022/07/22 10:36
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9 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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11 {{toc/}}
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15
16
17 = 1. Introduction =
18
19 == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20
21
22 (((
23 The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 )))
25
26 (((
27 The LHT65N 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.
28 )))
29
30 (((
31 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 )))
33
34 (((
35 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 )))
37
38 (((
39 LHT65N supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
40 )))
41
42 (((
43 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 )))
45
46
47 == 1.2 Features ==
48
49 * Wall mountable
50 * LoRaWAN v1.0.3 Class A protocol
51 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
52 * AT Commands to change parameters
53 * Remote configure parameters via LoRaWAN Downlink
54 * Firmware upgradeable via program port
55 * Built-in 2400mAh battery for up to 10 years of use.
56 * Built-in Temperature & Humidity sensor
57 * Optional External Sensors
58 * Tri-color LED to indicate working status
59 * Datalog feature
60
61
62
63
64 == 1.3 Specification ==
65
66
67 **Built-in Temperature Sensor:**
68
69 * Resolution: 0.01 °C
70 * Accuracy Tolerance : Typ ±0.3 °C
71 * Long Term Drift: < 0.02 °C/yr
72 * Operating Range: -40 ~~ 85 °C
73
74 **Built-in Humidity Sensor:**
75
76 * Resolution: 0.04 %RH
77 * Accuracy Tolerance : Typ ±3 %RH
78 * Long Term Drift: < 0.02 °C/yr
79 * Operating Range: 0 ~~ 96 %RH
80
81 **External Temperature Sensor:**
82
83 * Resolution: 0.0625 °C
84 * ±0.5°C accuracy from -10°C to +85°C
85 * ±2°C accuracy from -55°C to +125°C
86 * Operating Range: -55 °C ~~ 125 °C
87
88
89
90
91 = 2. Connect LHT65N to IoT Server =
92
93 == 2.1 How does LHT65N work? ==
94
95 (((
96 LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
97 )))
98
99 (((
100 If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
101 )))
102
103
104 == 2.2 How to Activate LHT65N? ==
105
106 (((
107 The LHT65N has two working modes:
108 )))
109
110 * (((
111 (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
112 )))
113 * (((
114 (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N 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 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
115 )))
116
117 (((
118 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
119 )))
120
121
122 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
123
124 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
125
126
127
128 == 2.3 Example to join LoRaWAN network ==
129
130 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
131 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.
132
133 (% _mstvisible="1" class="wikigeneratedid" %)
134 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
135
136
137 (((
138 Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
139 )))
140
141
142
143 === 2.3.1 Step 1: Create Device n TTN ===
144
145 (((
146 Create a device in TTN V3 with the OTAA keys from LHT65N.
147 )))
148
149 (((
150 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
151 )))
152
153 [[image:image-20220617150003-1.jpeg]]
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" _mstvisible="3"]]
161
162
163 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
164
165
166 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
167
168
169
170 (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
171
172
173 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
174
175
176 Input APP EUI,  APP KEY and DEV EUI:
177
178
179 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
180
181
182
183
184 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
185
186 (((
187 Use ACT button to activate LHT65N 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.
188 )))
189
190 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
191
192
193
194
195 == 2.4 Uplink Payload ==
196
197 (((
198 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% _mstvisible="3" style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
199 )))
200
201 (((
202 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
203 )))
204
205 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
206 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
207 (((
208 (% _mstvisible="6" %)
209 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
210 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
211 (((
212 (% _mstvisible="6" %)
213 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
214 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
215 (((
216 (% _mstvisible="6" %)
217 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
218 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
219 (((
220 (% _mstvisible="6" %)
221 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
222 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
223 (((
224 (% _mstvisible="6" %)
225 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
226 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
227 (((
228 (% _mstvisible="6" %)
229 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
230 )))
231 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
232 (((
233 (% _mstvisible="6" %)
234 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
235 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
236 (((
237 (% _mstvisible="6" %)
238 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
239 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
240 (((
241 (% _mstvisible="6" %)
242 (((
243 (% _mstvisible="7" %)
244 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
245 )))
246 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
247 (((
248 (% _mstvisible="6" %)
249 (((
250 (% _mstvisible="7" %)
251 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
252 )))
253
254 (% _mstvisible="6" %)
255 (((
256 (% _mstvisible="7" %)
257 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
258 )))
259 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
260 (((
261 (% _mstvisible="6" %)
262 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
263 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
264 (((
265 (% _mstvisible="6" %)
266 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
267 )))
268
269 * The First 6 bytes: has fix meanings for every LHT65N.
270 * The 7th byte (EXT #): defines the external sensor model.
271 * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
272
273
274
275 === 2.4.1 Decoder in TTN V3 ===
276
277 When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
278
279 Below is the position to put the decoder and LHT65N decoder can be download from here:
280
281
282 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
283
284
285 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
286
287
288
289
290 === 2.4.2 BAT-Battery Info ===
291
292 These two bytes of BAT include the battery state and the actually voltage
293
294 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
295
296
297 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
298
299
300 Check the battery voltage for LHT65N.
301
302 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
303 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
304
305
306
307 === 2.4.3 Built-in Temperature ===
308
309 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
310
311 * Temperature:  0x0ABB/100=27.47℃
312
313 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
314
315 * Temperature:  (0xF5C6-65536)/100=-26.18℃
316
317
318
319 === 2.4.4 Built-in Humidity ===
320
321 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
322
323 * Humidity:    0x025C/10=60.4%
324
325
326
327 === 2.4.5 Ext # ===
328
329 Bytes for External Sensor:
330
331 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
332
333
334
335 === 2.4.6 Ext value ===
336
337 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
338
339
340 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
341
342
343 * DS18B20 temp=0x0ADD/100=27.81℃
344
345 The last 2 bytes of data are meaningless
346
347 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
348
349
350 * External temperature= (0xF54F-65536)/100=-27.37℃
351
352 The last 2 bytes of data are meaningless
353
354 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
355
356
357
358 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
359
360 (((
361 Timestamp mode is designed for LHT65N 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:
362 )))
363
364 (((
365
366 )))
367
368 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
369 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
370 (((
371 (% _mstvisible="6" %)
372 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
373 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
374 (((
375 (% _mstvisible="6" %)
376 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
377 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
378 (((
379 (% _mstvisible="6" %)
380 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
381 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
382 (((
383 (% _mstvisible="6" %)
384 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
385 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
386 (((
387 (% _mstvisible="6" %)
388 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
389 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
390 (((
391 (% _mstvisible="6" %)
392 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
393 )))
394 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
395 (((
396 (% _mstvisible="6" %)
397 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
398 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
399 (((
400 (% _mstvisible="6" %)
401 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
402 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
403 (((
404 (% _mstvisible="6" %)
405 (((
406 (% _mstvisible="7" %)
407 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
408 )))
409
410 (% _mstvisible="6" %)
411 (((
412 (% _mstvisible="7" %)
413 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
414 )))
415 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
416 (((
417 (% _mstvisible="6" %)
418 (((
419 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
420 BAT Status &
421 )))
422
423 (% _mstvisible="6" %)
424 (((
425 (% _mstvisible="7" %)
426 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
427 )))
428 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
429 (((
430 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
431 Status & Ext
432 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
433 (((
434 (% _mstvisible="6" %)
435 (((
436 (% _mstvisible="7" %)
437 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
438 )))
439 )))
440
441 (% _mstvisible="1" %)
442 * (% _msthash="2539669" _msttexthash="857922" _mstvisible="3" %)**Battery status & **(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity**
443
444 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
445 (% _mstvisible="3" %)|=(% _msthash="1230918" _msttexthash="93158" _mstvisible="4" style="width: 65px;" %)Bit(bit)|=(% _msthash="1230919" _msttexthash="57954" _mstvisible="4" style="width: 267px;" %)[15:14]|=(% _msthash="1230920" _msttexthash="48022" _mstvisible="4" style="width: 134px;" %)[11:0]
446 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
447 (((
448 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
449 BAT Status
450
451 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
452 00(b): Ultra Low ( BAT <= 2.50v)
453
454 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
455 01(b): Low  (2.50v <=BAT <= 2.55v)
456
457 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
458 10(b): OK   (2.55v <= BAT <=2.65v)
459
460 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
461 11(b): Good   (BAT >= 2.65v)
462 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
463 (((
464 (% _mstvisible="6" %)
465 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
466
467 (% _mstvisible="6" %)
468
469 )))
470
471 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
472
473 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
474 |(% 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]**
475 |(% 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)
476
477 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
478 * (% style="color:blue" %)**Sync time OK**: (%%) 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
479 * (% style="color:blue" %)**Unix Time Request**:(%%)  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
480
481
482 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
483
484 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
485
486 be used to power the external ADC sensor; user can control the power on time for this
487
488 sensor by setting:
489
490 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
491
492 For example:
493
494 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
495
496
497 Or use **downlink command A2** to set the same.
498
499 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
500
501 When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
502
503 [[image:image-20220628150112-1.png||height="241" width="285"]]
504
505
506 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
507
508 [[image:image-20220628150714-4.png]]
509
510
511 When the voltage collected by ADC_IN1 is less than the minimum range, the minimum range will be used as the output; Similarly, when the collected voltage is greater than the maximum range, the maximum range will be used as the output.
512
513 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
514
515 [[image:image-20220628151005-5.png]]
516
517
518 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
519
520 [[image:image-20220628151056-6.png]]
521
522
523 3) Within range
524
525 [[image:image-20220628151143-7.png]]
526
527
528
529 == 2.5 Show data on Datacake ==
530
531 (((
532 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:
533 )))
534
535 (((
536
537 )))
538
539 (((
540 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
541 )))
542
543 (((
544 (% 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.
545 )))
546
547 (((
548
549 )))
550
551 (((
552 Add Datacake:
553 )))
554
555
556 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
557
558
559
560 Select default key as Access Key:
561
562
563 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
564
565
566 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
567
568
569 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
570
571
572 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
573
574
575
576 == 2.6 Datalog Feature ==
577
578 (((
579 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 will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N.
580 )))
581
582
583
584 === 2.6.1 Ways to get datalog via LoRaWAN ===
585
586 There are two methods:
587
588 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
589 1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after the network recovery.
590
591 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
592
593 [[image:image-20220703111700-2.png||height="381" width="1119"]]
594
595
596 === 2.6.2 Unix TimeStamp ===
597
598
599 LHT65N uses Unix TimeStamp format based on
600
601
602 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
603
604
605
606 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
607
608 Below is the converter example
609
610 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
611
612 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
613
614
615
616 === 2.6.3 Set Device Time ===
617
618 (((
619 There are two ways to set device's time:
620 )))
621
622 (((
623 **~1. Through LoRaWAN MAC Command (Default settings)**
624 )))
625
626 (((
627 User need to set SYNCMOD=1 to enable sync time via MAC command.
628 )))
629
630 (((
631 Once LHT65N Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65N. If LHT65N fails to get the time from the server, LHT65N will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
632 )))
633
634 (((
635 (% 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.
636 )))
637
638 (((
639
640 )))
641
642 (((
643 **2. Manually Set Time**
644 )))
645
646 (((
647 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
648 )))
649
650
651
652 === 2.6.4 Poll sensor value ===
653
654 User can poll sensor value based on timestamps from the server. Below is the downlink command.
655
656 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
657
658
659 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.
660
661 For example, downlink command **31 5FC5F350 5FC6 0160 05**
662
663 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
664
665 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
666
667
668
669 === 2.6.5 Datalog Uplink payload ===
670
671 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
672 The Datalog poll reply uplink will use below payload format.
673
674 (% _mstvisible="1" %)
675 (((
676 (% _mstvisible="2" %)
677 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
678 )))
679
680 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
681 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
682 (((
683 (% _mstvisible="6" %)
684 (((
685 (% _mstvisible="7" %)
686 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
687 )))
688 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
689 (((
690 (% _mstvisible="6" %)
691 (((
692 (% _mstvisible="7" %)
693 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
694 )))
695 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
696 (((
697 (% _mstvisible="6" %)
698 (((
699 (% _mstvisible="7" %)
700 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
701 )))
702 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
703 (((
704 (% _mstvisible="6" %)
705 (((
706 (% _mstvisible="7" %)
707 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
708 )))
709 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
710 (((
711 (% _mstvisible="6" %)
712 (((
713 (% _mstvisible="7" %)
714 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
715 )))
716 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
717 (((
718 (% _mstvisible="6" %)
719 (((
720 (% _mstvisible="7" %)
721 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
722 )))
723 )))
724 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
725 (((
726 (% _mstvisible="6" %)
727 (((
728 (% _mstvisible="7" %)
729 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
730 )))
731 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
732 (((
733 (% _mstvisible="6" %)
734 (((
735 (% _mstvisible="7" %)
736 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
737 )))
738 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
739 (((
740 (% _mstvisible="6" %)
741 (((
742 (% _mstvisible="7" %)
743 (((
744 (% _mstvisible="8" %)
745 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
746 )))
747 )))
748
749 (% _mstvisible="6" %)
750 (((
751 (% _mstvisible="7" %)
752 (((
753 (% _mstvisible="8" %)
754 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
755 )))
756 )))
757 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
758 (((
759 (% _mstvisible="6" %)
760 (((
761 (% _mstvisible="7" %)
762 (((
763 (% _mstvisible="8" %)
764 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
765 )))
766 )))
767
768 (% _mstvisible="6" %)
769 (((
770 (% _mstvisible="7" %)
771 (((
772 (% _mstvisible="8" %)
773 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
774 )))
775 )))
776 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
777 (((
778 (% _mstvisible="6" %)
779 (((
780 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
781 Poll message flag & Ext
782 )))
783 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
784 (((
785 (% _mstvisible="6" %)
786 (((
787 (% _mstvisible="7" %)
788 (((
789 (% _mstvisible="8" %)
790 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
791 )))
792 )))
793
794 (% _mstvisible="6" %)
795 (((
796 (% _mstvisible="7" %)
797 (((
798 (% _mstvisible="8" %)
799
800 )))
801 )))
802 )))
803
804 (% _mstvisible="1" %)
805 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
806
807 (% _mstvisible="1" %)
808 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
809
810 (% _mstvisible="1" %)
811 (((
812 (% _mstvisible="2" %)
813 (((
814 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
815 (((
816 Poll Message Flag: 1: This message is a poll message reply.
817 )))
818 )))
819 )))
820
821 (% _mstvisible="1" %)
822 * (% _mstvisible="3" %)
823 (((
824 (% _mstvisible="4" %)
825 (((
826 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
827 (((
828 Poll Message Flag is set to 1.
829 )))
830 )))
831 )))
832 * (% _mstvisible="3" %)
833 (((
834 (% _mstvisible="4" %)
835 (((
836 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
837 (((
838 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
839 )))
840 )))
841 )))
842
843 (% _mstvisible="1" %)
844 (((
845 (% _mstvisible="2" %)
846 (((
847 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
848 (((
849
850 )))
851
852 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
853 (((
854 For example, in US915 band, the max payload for different DR is:
855 )))
856 )))
857 )))
858
859 (% _mstvisible="1" %)
860 (((
861 (% _mstvisible="2" %)
862 (((
863 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
864 (((
865 a) DR0: max is 11 bytes so one entry of data
866 )))
867 )))
868 )))
869
870 (% _mstvisible="1" %)
871 (((
872 (% _mstvisible="2" %)
873 (((
874 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
875 (((
876 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
877 )))
878 )))
879 )))
880
881 (% _mstvisible="1" %)
882 (((
883 (% _mstvisible="2" %)
884 (((
885 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
886 (((
887 c) DR2: total payload includes 11 entries of data
888 )))
889 )))
890 )))
891
892 (% _mstvisible="1" %)
893 (((
894 (% _mstvisible="2" %)
895 (((
896 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
897 (((
898 d) DR3: total payload includes 22 entries of data.
899 )))
900 )))
901 )))
902
903 (% _mstvisible="1" %)
904 (((
905 (% _mstvisible="2" %)
906 (((
907 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
908 (((
909 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
910 )))
911 )))
912 )))
913
914
915 (% _mstvisible="1" style="text-align: left;" %)
916 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
917
918 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
919 If LHT65N has below data inside Flash:
920
921 (% _mstvisible="1" %)
922 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
923
924 (% _mstvisible="1" %)
925 (((
926 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
927 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
928 )))
929
930 (% _mstvisible="1" %)
931 (((
932 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
933 Where : Start time: 60065F97 = time 21/1/19 04:27:03
934 )))
935
936 (% _mstvisible="1" %)
937 (((
938 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
939 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
940 )))
941
942 (% _mstvisible="1" %)
943 (((
944 (% _mstvisible="2" %)
945
946 )))
947
948 (% _mstvisible="1" %)
949 (((
950 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
951 LHT65N will uplink this payload.
952 )))
953
954 (% _mstvisible="1" %)
955 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
956
957 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
958 (((
959 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
960 )))
961
962 (% _msthash="315237" _msttexthash="1385839" %)
963 (((
964 Where the first 11 bytes is for the first entry:
965 )))
966
967 (% _msthash="315238" _msttexthash="274846" %)
968 (((
969 7FFF089801464160065F97
970 )))
971
972 (% _msthash="315239" _msttexthash="617435" %)
973 (((
974 Ext sensor data=0x7FFF/100=327.67
975 )))
976
977 (% _msthash="315240" _msttexthash="270543" %)
978 (((
979 Temp=0x0898/100=22.00
980 )))
981
982 (% _msthash="315241" _msttexthash="211783" %)
983 (((
984 Hum=0x0146/10=32.6
985 )))
986
987 (% _msthash="315242" _msttexthash="1569776" %)
988 (((
989 poll message flag & Ext=0x41,means reply data,Ext=1
990 )))
991
992 (% _msthash="315243" _msttexthash="1120509" %)
993 (((
994 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
995 )))
996
997
998
999 == 2.7 Alarm Mode ==
1000
1001 (((
1002 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.
1003 )))
1004
1005 (((
1006 (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1007 )))
1008
1009 (((
1010 **AT COMMAND FOR ALARM MODE:**
1011 )))
1012
1013 (% _mstvisible="1" class="box infomessage" %)
1014 (((
1015 (((
1016 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1017 )))
1018
1019 (((
1020 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1021 )))
1022
1023 (((
1024 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1025 )))
1026
1027 (((
1028 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1029 )))
1030
1031 (((
1032 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1033 )))
1034 )))
1035
1036 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1037
1038 Total bytes: 8 bytes
1039
1040 **Example:**AA0100010001003C
1041
1042 WMOD=01
1043
1044 CITEMP=0001
1045
1046 TEMPlow=0001
1047
1048 TEMPhigh=003C
1049
1050
1051 == 2.8 LED Indicator ==
1052
1053 The LHT65 has a triple color LED which for easy showing different stage .
1054
1055 While user press ACT button, the LED will work as per LED status with ACT button.
1056
1057 In a normal working state:
1058
1059 * For each uplink, the BLUE LED or RED LED will blink once.
1060 BLUE LED when external sensor is connected.
1061 * RED LED when external sensor is not connected
1062 * For each success downlink, the PURPLE LED will blink once
1063
1064
1065
1066
1067 == 2.9 installation ==
1068
1069 (% _mstvisible="1" %)
1070 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1071
1072
1073
1074 = 3. Sensors and Accessories =
1075
1076 == 3.1 E2 Extension Cable ==
1077
1078 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1079
1080 **1m long breakout cable for LHT65N. Features:**
1081
1082 * (((
1083 Use for AT Command， works for both LHT52/LHT65N
1084 )))
1085 * (((
1086 Update firmware for LHT65N, works for both LHT52/LHT65N
1087 )))
1088 * (((
1089 Supports ADC mode to monitor external ADC
1090 )))
1091 * (((
1092 Supports Interrupt mode
1093 )))
1094 * (((
1095 Exposed All pins from the LHT65N Type-C connector.
1096 )))
1097
1098 [[image:image-20220619092421-3.png||height="371" width="529"]]
1099
1100
1101
1102
1103 == 3.2 E3 Temperature Probe ==
1104
1105
1106 [[image:image-20220515080154-4.png||_mstalt="434681" _mstvisible="3" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="428792" _mstvisible="3" height="201" width="195"]]
1107
1108
1109 Temperature sensor with 2 meters cable long
1110
1111 * Resolution: 0.0625 °C
1112 * ±0.5°C accuracy from -10°C to +85°C
1113 * ±2°C accuracy from -55°C to +125°C
1114 * Operating Range: -40 ~~ 125 °C
1115 * Working voltage 2.35v ~~ 5v
1116
1117
1118
1119
1120 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1121
1122 (((
1123 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1124 )))
1125
1126 * (((
1127 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1128 )))
1129
1130 * (((
1131 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1132 )))
1133
1134 (((
1135 There are two kinds of commands to configure LHT65N, they are:
1136 )))
1137
1138 * (((
1139 (% style="color:#4f81bd" %)**General Commands**.
1140 )))
1141
1142 (((
1143 These commands are to configure:
1144 )))
1145
1146 1. (((
1147 General system settings like: uplink interval.
1148 )))
1149 1. (((
1150 LoRaWAN protocol & radio-related commands.
1151 )))
1152
1153 (((
1154 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]]
1155 )))
1156
1157 * (((
1158 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1159 )))
1160
1161 (((
1162 These commands are only valid for LHT65N, as below:
1163 )))
1164
1165
1166 == 4.1 Set Transmit Interval Time ==
1167
1168 Feature: Change LoRaWAN End Node Transmit Interval.
1169
1170 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1171
1172 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1173
1174
1175 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1176
1177 Format: Command Code (0x01) followed by 3 bytes time value.
1178
1179 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1180
1181 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1182
1183 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1184
1185
1186
1187
1188 == 4.2 Set External Sensor Mode ==
1189
1190 Feature: Change External Sensor Mode.
1191
1192 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1193
1194 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1195
1196
1197 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1198
1199 Total bytes: 2 ~~ 5 bytes
1200
1201 **Example:**
1202
1203 * 0xA201: Set external sensor type to E1
1204
1205 * 0xA209: Same as AT+EXT=9
1206
1207 * 0xA20702003c: Same as AT+SETCNT=60
1208
1209
1210
1211
1212 == 4.3 Enable/Disable uplink Temperature probe ID ==
1213
1214 (((
1215 Feature: If PID is enabled, device will send the temperature probe ID on:
1216 )))
1217
1218 * (((
1219 First Packet after OTAA Join
1220 )))
1221 * (((
1222 Every 24 hours since the first packet.
1223 )))
1224
1225 (((
1226 PID is default set to disable (0)
1227 )))
1228
1229 (% style="color:#4f81bd" %)**AT Command:**
1230
1231 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1232
1233
1234 (% style="color:#4f81bd" %)**Downlink Command:**
1235
1236 * **0xA800**  **~-~->** AT+PID=0
1237 * **0xA801**     **~-~->** AT+PID=1
1238
1239
1240
1241
1242 == 4.4 Set Password ==
1243
1244 Feature: Set device password, max 9 digits
1245
1246 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1247
1248 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1249
1250
1251 (% style="color:#4f81bd" %)**Downlink Command:**
1252
1253 No downlink command for this feature.
1254
1255
1256
1257 == 4.5 Quit AT Command ==
1258
1259 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1260
1261 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1262
1263 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1264
1265
1266 (% style="color:#4f81bd" %)**Downlink Command:**
1267
1268 No downlink command for this feature.
1269
1270
1271
1272 == 4.6 Set to sleep mode ==
1273
1274 Feature: Set device to sleep mode
1275
1276 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1277 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1278
1279 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1280
1281 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1282
1283
1284 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1285
1286 * There is no downlink command to set to Sleep mode.
1287
1288
1289
1290
1291 == 4.7 Set system time ==
1292
1293 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1294
1295 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1296
1297 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1298
1299
1300 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1301
1302 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1303
1304
1305
1306 == 4.8 Set Time Sync Mode ==
1307
1308 (((
1309 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1310 )))
1311
1312 (((
1313 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.
1314 )))
1315
1316 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1317
1318 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1319
1320
1321 (% style="color:#4f81bd" %)**Downlink Command:**
1322
1323 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1324 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1325
1326
1327
1328 == 4.9 Set Time Sync Interval ==
1329
1330 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1331
1332 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1333
1334 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1335
1336
1337 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1338
1339 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1340
1341
1342
1343 == 4.10 Print data entries base on page. ==
1344
1345 Feature: Print the sector data from start page to stop page (max is 416 pages).
1346
1347 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1348
1349 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1350
1351
1352 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1353
1354 No downlink commands for feature
1355
1356
1357
1358 == 4.11 Print last few data entries. ==
1359
1360 Feature: Print the last few data entries
1361
1362 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1363
1364 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1365
1366
1367 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1368
1369 No downlink commands for feature
1370
1371
1372
1373 == 4.12 Clear Flash Record ==
1374
1375 Feature: Clear flash storage for data log feature.
1376
1377
1378 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1379
1380 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1381
1382
1383 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1384
1385 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1386
1387
1388
1389
1390 == 4.13 Auto Send None-ACK messages ==
1391
1392 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1393 Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
1394
1395 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1396
1397 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1398 The default factory setting is 0
1399
1400 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1401 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 171px;" %)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|=(% _mstvisible="4" style="width: 219px;" %)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|=(% _mstvisible="4" style="width: 119px;" %)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1402 (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK
1403
1404 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1405
1406 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1407
1408
1409
1410
1411 = 5. Battery & How to replace =
1412
1413 == 5.1 Battery Type ==
1414
1415 (((
1416 (((
1417 LHT65N 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.
1418 )))
1419 )))
1420
1421 (((
1422
1423 )))
1424
1425 (((
1426 (((
1427 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1428 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1429 )))
1430 )))
1431
1432 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1433
1434
1435 == 5.2 Replace Battery ==
1436
1437 LHT65N 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.
1438
1439 [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
1440
1441
1442 == 5.3 Battery Life Analyze ==
1443
1444 (((
1445 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:
1446 [[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]]
1447 )))
1448
1449 (((
1450
1451 )))
1452
1453 (((
1454 A full detail test report for LHT65N 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]]
1455 )))
1456
1457
1458
1459 = 6. FAQ =
1460
1461 == 6.1 How to use AT Command? ==
1462
1463 LHT65N 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.
1464
1465 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1466
1467
1468 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1469
1470 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1471 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1472 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1473 * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1474
1475 (((
1476 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. 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.
1477 )))
1478
1479
1480 Input password and ATZ to activate LHT65N,As shown below:
1481
1482 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1483
1484
1485 (% _msthash="506066" _msttexthash="544869" %)
1486 AT Command List is as below:
1487
1488 (% _msthash="506067" _msttexthash="361920" %)
1489 AT+<CMD>? :  Help on <CMD>
1490
1491 (% _msthash="506068" _msttexthash="243061" %)
1492 AT+<CMD> :  Run <CMD>
1493
1494 (% _msthash="506069" _msttexthash="704197" %)
1495 AT+<CMD>=<value> :  Set the value
1496
1497 (% _msthash="506070" _msttexthash="455676" %)
1498 AT+<CMD>=? :  Get the value
1499
1500 (% _msthash="506071" _msttexthash="670553" %)
1501 AT+DEBUG:  Set more info output
1502
1503 (% _msthash="506072" _msttexthash="485888" %)
1504 ATZ:  Trig a reset of the MCU
1505
1506 (% _msthash="506073" _msttexthash="2068872" %)
1507 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1508
1509 (% _msthash="506074" _msttexthash="689169" %)
1510 AT+DEUI:  Get or Set the Device EUI
1511
1512 (% _msthash="506075" _msttexthash="960414" %)
1513 AT+DADDR:  Get or Set the Device Address
1514
1515 (% _msthash="506076" _msttexthash="1079897" %)
1516 AT+APPKEY:  Get or Set the Application Key
1517
1518 (% _msthash="506077" _msttexthash="1326143" %)
1519 AT+NWKSKEY:  Get or Set the Network Session Key
1520
1521 (% _msthash="506078" _msttexthash="1573000" %)
1522 AT+APPSKEY:  Get or Set the Application Session Key
1523
1524 (% _msthash="506079" _msttexthash="1041729" %)
1525 AT+APPEUI:  Get or Set the Application EUI
1526
1527 (% _msthash="506080" _msttexthash="2104206" %)
1528 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1529
1530 (% _msthash="506081" _msttexthash="3369288" %)
1531 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1532
1533 (% _msthash="506082" _msttexthash="1894529" %)
1534 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1535
1536 (% _msthash="506083" _msttexthash="3864172" %)
1537 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1538
1539 (% _msthash="506084" _msttexthash="1712204" %)
1540 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1541
1542 (% _msthash="506085" _msttexthash="1281202" %)
1543 AT+RX2FQ:  Get or Set the Rx2 window frequency
1544
1545 (% _msthash="506086" _msttexthash="2796781" %)
1546 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1547
1548 (% _msthash="506087" _msttexthash="3285165" %)
1549 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1550
1551 (% _msthash="506088" _msttexthash="3286179" %)
1552 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1553
1554 (% _msthash="506089" _msttexthash="4703803" %)
1555 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1556
1557 (% _msthash="506090" _msttexthash="4704999" %)
1558 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1559
1560 (% _msthash="506091" _msttexthash="1528683" %)
1561 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1562
1563 (% _msthash="506092" _msttexthash="757185" %)
1564 AT+NWKID:  Get or Set the Network ID
1565
1566 (% _msthash="506093" _msttexthash="1156597" %)
1567 AT+FCU:  Get or Set the Frame Counter Uplink
1568
1569 (% _msthash="506094" _msttexthash="1273987" %)
1570 AT+FCD:  Get or Set the Frame Counter Downlink
1571
1572 (% _msthash="506095" _msttexthash="859222" %)
1573 AT+CLASS:  Get or Set the Device Class
1574
1575 (% _msthash="506096" _msttexthash="384852" %)
1576 AT+JOIN:  Join network
1577
1578 (% _msthash="506097" _msttexthash="548626" %)
1579 AT+NJS:  Get the join status
1580
1581 (% _msthash="506098" _msttexthash="2546206" %)
1582 AT+SENDB:  Send hexadecimal data along with the application port
1583
1584 (% _msthash="506099" _msttexthash="1932307" %)
1585 AT+SEND:  Send text data along with the application port
1586
1587 (% _msthash="506100" _msttexthash="3560557" %)
1588 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1589
1590 (% _msthash="506101" _msttexthash="1429701" %)
1591 AT+RECV:  Print last received data in raw format
1592
1593 (% _msthash="506102" _msttexthash="1735981" %)
1594 AT+VER:  Get current image version and Frequency Band
1595
1596 (% _msthash="506103" _msttexthash="1189474" %)
1597 AT+CFM:  Get or Set the confirmation mode (0-1)
1598
1599 (% _msthash="506104" _msttexthash="1718210" %)
1600 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1601
1602 (% _msthash="506105" _msttexthash="1339403" %)
1603 AT+SNR:  Get the SNR of the last received packet
1604
1605 (% _msthash="506106" _msttexthash="1452009" %)
1606 AT+RSSI:  Get the RSSI of the last received packet
1607
1608 (% _msthash="506107" _msttexthash="2768142" %)
1609 AT+TDC:  Get or set the application data transmission interval in ms
1610
1611 (% _msthash="506108" _msttexthash="1083914" %)
1612 AT+PORT:  Get or set the application port
1613
1614 (% _msthash="506109" _msttexthash="622440" %)
1615 AT+DISAT:  Disable AT commands
1616
1617 (% _msthash="506110" _msttexthash="868361" %)
1618 AT+PWORD: Set password, max 9 digits
1619
1620 (% _msthash="506111" _msttexthash="2210299" %)
1621 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1622
1623 (% _msthash="506112" _msttexthash="2113462" %)
1624 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1625
1626 (% _msthash="506113" _msttexthash="2087423" %)
1627 AT+PDTA:  Print the sector data from start page to stop page
1628
1629 (% _msthash="506114" _msttexthash="1063127" %)
1630 AT+PLDTA:  Print the last few sets of data
1631
1632 (% _msthash="506115" _msttexthash="1999426" %)
1633 AT+CLRDTA:  Clear the storage, record position back to 1st
1634
1635 (% _msthash="506116" _msttexthash="442130" %)
1636 AT+SLEEP:  Set sleep mode
1637
1638 (% _msthash="506117" _msttexthash="1080222" %)
1639 AT+EXT:  Get or Set external sensor model
1640
1641 (% _msthash="506118" _msttexthash="1309490" %)
1642 AT+BAT:  Get the current battery voltage in mV
1643
1644 (% _msthash="506119" _msttexthash="813891" %)
1645 AT+CFG:  Print all configurations
1646
1647 (% _msthash="506120" _msttexthash="551707" %)
1648 AT+WMOD:  Get or Set Work Mode
1649
1650 (% _msthash="506121" _msttexthash="2631499" %)
1651 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1652
1653 (% _msthash="506122" _msttexthash="3907150" %)
1654 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1655
1656 (% _msthash="506123" _msttexthash="854620" %)
1657 AT+SETCNT:  Set the count at present
1658
1659 (% _msthash="506124" _msttexthash="2554877" %)
1660 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1661
1662 (% _msthash="506125" _msttexthash="771849" %)
1663 AT+RPL:  Get or set response level
1664
1665 (% _msthash="506126" _msttexthash="1484314" %)
1666 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1667
1668 (% _msthash="506127" _msttexthash="741728" %)
1669 AT+LEAPSEC:  Get or Set Leap Second
1670
1671 (% _msthash="506128" _msttexthash="1694017" %)
1672 AT+SYNCMOD:  Get or Set time synchronization method
1673
1674 (% _msthash="506129" _msttexthash="2235948" %)
1675 AT+SYNCTDC:  Get or set time synchronization interval in day
1676
1677 (% _msthash="506130" _msttexthash="425542" %)
1678 AT+PID:  Get or set the PID
1679
1680
1681 == 6.2 Where to use AT commands and Downlink commands ==
1682
1683 (% _msthash="506131" _msttexthash="14585714" %)
1684 AT commands：
1685
1686 [[image:image-20220620153708-1.png||height="603" width="723"]]
1687
1688 (% _msthash="506132" _msttexthash="337922" %)
1689 Downlink commands:
1690
1691
1692 (% _msthash="506133" _msttexthash="33046" %)
1693 **TTN:**
1694
1695 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1696
1697
1698 (% _msthash="506134" _msttexthash="11113791" %)
1699 **Helium：**
1700
1701 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1702
1703
1704 (% _msthash="506135" _msttexthash="4159844" %)
1705 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1706
1707 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1708
1709 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1710
1711
1712 (% _msthash="506136" _msttexthash="39286" %)
1713 **Aws:**
1714
1715 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1716
1717
1718
1719 == 6.3 How to change the uplink interval？ ==
1720
1721 [[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/||_msthash="506137" _msttexthash="5712018"]]
1722
1723
1724
1725 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1726
1727 [[image:image-20220615153355-1.png]]
1728
1729 [[image:1655802313617-381.png]]
1730
1731
1732 (((
1733 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. 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.
1734 )))
1735
1736
1737 Input password and ATZ to activate LHT65N,As shown below:
1738
1739 [[image:image-20220615154519-3.png||height="672" width="807"]]
1740
1741
1742
1743 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1744
1745
1746 [[image:image-20220615153355-1.png]]
1747
1748
1749 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1750
1751 [[image:image-20220615170542-5.png]]
1752
1753
1754 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1755
1756 (% _msthash="506146" _msttexthash="52173160" %)
1757 First connect the four lines；(% style="display:none" %)
1758
1759 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1760
1761
1762 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1763
1764 [[image:image-20220621170938-2.png]]
1765
1766
1767 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1768
1769 [[image:image-20220615171334-6.png]]
1770
1771
1772 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1773
1774
1775 When this interface appears, it indicates that the download has been completed.
1776
1777 [[image:image-20220620160723-8.png]]
1778
1779
1780 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1781
1782
1783 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1784
1785 [[image:image-20220623110706-1.png]]
1786
1787
1788 [[image:image-20220623112117-4.png||height="459" width="343"]]
1789
1790 (((
1791 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. 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.
1792 )))
1793
1794
1795 Input password and ATZ to activate LHT65N,As shown below:
1796
1797 [[image:image-20220615154519-3.png||height="672" width="807"]]
1798
1799
1800 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1801
1802 [[image:image-20220623110706-1.png]]
1803
1804 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1805
1806 [[image:image-20220615170542-5.png]]
1807
1808
1809 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1810
1811 (% _msthash="506146" _msttexthash="52173160" %)
1812 First connect the four lines；
1813
1814 (% _msthash="506146" _msttexthash="52173160" %)
1815 [[image:image-20220623113959-5.png||height="528" width="397"]]
1816
1817 (% _msthash="506146" _msttexthash="52173160" %)
1818 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1819
1820 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1821
1822 [[image:image-20220615171334-6.png]]
1823
1824
1825 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1826
1827
1828 When this interface appears, it indicates that the download has been completed.
1829
1830 [[image:image-20220620160723-8.png]]
1831
1832
1833 Finally,restart reset device again
1834
1835
1836 = 7. Order Info =
1837
1838
1839 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1840
1841 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1842
1843 (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1844
1845 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1846
1847 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1848
1849 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1850
1851 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1852
1853 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1854
1855 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1856
1857 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1858
1859 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1860
1861 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1862
1863
1864
1865
1866 = 8. Packing Info =
1867
1868
1869 **Package Includes**:
1870
1871 * LHT65N Temperature & Humidity Sensor x 1
1872 * Optional external sensor
1873
1874 **Dimension and weight**:
1875
1876 * Device Size:  10 x 10 x 3.5 cm
1877 * Device Weight: 120.5g
1878
1879
1880
1881
1882 = 9. Reference material =
1883
1884 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1885
1886
1887
1888
1889 = 10. FCC Warning =
1890
1891 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1892
1893 (1) This device may not cause harmful interference；
1894
1895 (2) this device must accept any interference received, including interference that may cause undesired operation.