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Version 189.8 by Xiaoling on 2022/08/08 16:22
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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
50 * Wall mountable
51 * LoRaWAN v1.0.3 Class A protocol
52 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
53 * AT Commands to change parameters
54 * Remote configure parameters via LoRaWAN Downlink
55 * Firmware upgradeable via program port
56 * Built-in 2400mAh battery for up to 10 years of use.
57 * Built-in Temperature & Humidity sensor
58 * Optional External Sensors
59 * Tri-color LED to indicate working status
60 * Datalog feature
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
75
76 **Built-in Humidity Sensor:**
77
78 * Resolution: 0.04 %RH
79 * Accuracy Tolerance : Typ ±3 %RH
80 * Long Term Drift: < 0.02 °C/yr
81 * Operating Range: 0 ~~ 96 %RH
82
83
84
85 **External Temperature Sensor:**
86
87 * Resolution: 0.0625 °C
88 * ±0.5°C accuracy from -10°C to +85°C
89 * ±2°C accuracy from -55°C to +125°C
90 * Operating Range: -55 °C ~~ 125 °C
91
92
93
94 = 2. Connect LHT65N to IoT Server =
95
96 == 2.1 How does LHT65N work? ==
97
98
99 (((
100 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.
101 )))
102
103 (((
104 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.
105 )))
106
107
108
109 == 2.2 How to Activate LHT65N? ==
110
111
112 (((
113 The LHT65N has two working modes:
114 )))
115
116 * (((
117 (% 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.
118 )))
119 * (((
120 (% 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. 
121 )))
122
123 (((
124 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
125 )))
126
127
128 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
129
130 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
131
132
133
134 == 2.3 Example to join LoRaWAN network ==
135
136
137 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
138 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.
139
140 (% _mstvisible="1" class="wikigeneratedid" %)
141 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
142
143
144 (((
145 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:
146 )))
147
148
149
150 === 2.3.1 Step 1: Create Device n TTN ===
151
152
153 (((
154 Create a device in TTN V3 with the OTAA keys from LHT65N.
155 )))
156
157 (((
158 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
159 )))
160
161 [[image:image-20220617150003-1.jpeg]]
162
163 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
164
165 Add APP EUI in the application.
166
167
168 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
169
170
171 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
172
173
174 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
175
176
177
178 (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
179
180
181 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
182
183
184 Input APP EUI,  APP KEY and DEV EUI:
185
186
187 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
188
189
190
191
192 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
193
194
195 (((
196 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.
197 )))
198
199 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
200
201
202
203
204 == 2.4 Uplink Payload ==
205
206
207 (((
208 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.
209 )))
210
211 (((
212 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
213 )))
214
215 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
216 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
217 (((
218 (% _mstvisible="6" %)
219 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
220 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
221 (((
222 (% _mstvisible="6" %)
223 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
224 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
225 (((
226 (% _mstvisible="6" %)
227 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
228 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
229 (((
230 (% _mstvisible="6" %)
231 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
232 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
233 (((
234 (% _mstvisible="6" %)
235 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
236 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
237 (((
238 (% _mstvisible="6" %)
239 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
240 )))
241 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
242 (((
243 (% _mstvisible="6" %)
244 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
245 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
246 (((
247 (% _mstvisible="6" %)
248 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
249 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
250 (((
251 (% _mstvisible="6" %)
252 (((
253 (% _mstvisible="7" %)
254 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
255 )))
256 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
257 (((
258 (% _mstvisible="6" %)
259 (((
260 (% _mstvisible="7" %)
261 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
262 )))
263
264 (% _mstvisible="6" %)
265 (((
266 (% _mstvisible="7" %)
267 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
268 )))
269 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
270 (((
271 (% _mstvisible="6" %)
272 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
273 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
274 (((
275 (% _mstvisible="6" %)
276 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
277 )))
278
279 * The First 6 bytes: has fix meanings for every LHT65N.
280 * The 7th byte (EXT #): defines the external sensor model.
281 * 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.)
282
283
284
285 === 2.4.1 Decoder in TTN V3 ===
286
287
288 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.
289
290 Below is the position to put the decoder and LHT65N decoder can be download from here:
291
292
293 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
294
295
296 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
297
298
299
300
301 === 2.4.2 BAT-Battery Info ===
302
303
304 These two bytes of BAT include the battery state and the actually voltage
305
306 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
307
308
309 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
310
311
312 Check the battery voltage for LHT65N.
313
314 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
315 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
316
317
318
319 === 2.4.3 Built-in Temperature ===
320
321
322 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
323
324 * Temperature:  0x0ABB/100=27.47℃
325
326 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
327
328 * Temperature:  (0xF5C6-65536)/100=-26.18℃
329
330
331
332 === 2.4.4 Built-in Humidity ===
333
334
335 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
336
337 * Humidity:    0x025C/10=60.4%
338
339
340
341 === 2.4.5 Ext # ===
342
343
344 Bytes for External Sensor:
345
346 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
347
348
349
350 === 2.4.6 Ext value ===
351
352 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
353
354
355 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
356
357
358 * DS18B20 temp=0x0ADD/100=27.81℃
359
360 The last 2 bytes of data are meaningless
361
362 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
363
364
365 * External temperature= (0xF54F-65536)/100=-27.37℃
366
367 The last 2 bytes of data are meaningless
368
369 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
370
371
372
373 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
374
375
376 (((
377 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:
378 )))
379
380 (((
381
382 )))
383
384 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
385 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
386 (((
387 (% _mstvisible="6" %)
388 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
389 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
390 (((
391 (% _mstvisible="6" %)
392 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
393 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
394 (((
395 (% _mstvisible="6" %)
396 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
397 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
398 (((
399 (% _mstvisible="6" %)
400 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
401 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
402 (((
403 (% _mstvisible="6" %)
404 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
405 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
406 (((
407 (% _mstvisible="6" %)
408 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
409 )))
410 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
411 (((
412 (% _mstvisible="6" %)
413 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
414 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
415 (((
416 (% _mstvisible="6" %)
417 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
418 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
419 (((
420 (% _mstvisible="6" %)
421 (((
422 (% _mstvisible="7" %)
423 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
424 )))
425
426 (% _mstvisible="6" %)
427 (((
428 (% _mstvisible="7" %)
429 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
430 )))
431 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
432 (((
433 (% _mstvisible="6" %)
434 (((
435 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
436 BAT Status &
437 )))
438
439 (% _mstvisible="6" %)
440 (((
441 (% _mstvisible="7" %)
442 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
443 )))
444 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
445 (((
446 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
447 Status & Ext
448 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
449 (((
450 (% _mstvisible="6" %)
451 (((
452 (% _mstvisible="7" %)
453 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
454 )))
455 )))
456
457 (% _mstvisible="1" %)
458 * (% _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**
459
460 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
461 (% _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]
462 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
463 (((
464 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
465 BAT Status
466
467 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
468 00(b): Ultra Low ( BAT <= 2.50v)
469
470 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
471 01(b): Low  (2.50v <=BAT <= 2.55v)
472
473 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
474 10(b): OK   (2.55v <= BAT <=2.65v)
475
476 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
477 11(b): Good   (BAT >= 2.65v)
478 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
479 (((
480 (% _mstvisible="6" %)
481 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
482
483 (% _mstvisible="6" %)
484
485 )))
486
487 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
488
489 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
490 |(% 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]**
491 |(% 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)
492
493 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
494 * (% 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.
495 * (% 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)
496
497
498
499 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
500
501
502 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
503
504 be used to power the external ADC sensor; user can control the power on time for this
505
506 sensor by setting:
507
508 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
509
510 For example:
511
512 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
513
514
515 Or use **downlink command A2** to set the same.
516
517 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
518
519 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.
520
521 [[image:image-20220628150112-1.png||height="241" width="285"]]
522
523
524 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
525
526 [[image:image-20220628150714-4.png]]
527
528
529 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.
530
531 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
532
533 [[image:image-20220628151005-5.png]]
534
535
536 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
537
538 [[image:image-20220628151056-6.png]]
539
540
541 3) Within range
542
543 [[image:image-20220628151143-7.png]]
544
545
546
547 == 2.5 Show data on Datacake ==
548
549
550 (((
551 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:
552 )))
553
554 (((
555
556 )))
557
558 (((
559 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
560 )))
561
562 (((
563 (% 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.
564 )))
565
566 (((
567
568 )))
569
570 (((
571 Add Datacake:
572 )))
573
574
575 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
576
577
578
579 Select default key as Access Key:
580
581
582 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
583
584
585 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
586
587
588 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
589
590
591 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
592
593
594
595 == 2.6 Datalog Feature ==
596
597
598 (((
599 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.
600 )))
601
602
603
604 === 2.6.1 Ways to get datalog via LoRaWAN ===
605
606
607 There are two methods:
608
609 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
610 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.
611
612 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
613
614 [[image:image-20220703111700-2.png||height="381" width="1119"]]
615
616
617 === 2.6.2 Unix TimeStamp ===
618
619
620 LHT65N uses Unix TimeStamp format based on
621
622
623 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
624
625
626
627 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
628
629 Below is the converter example
630
631 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
632
633 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
634
635
636
637 === 2.6.3 Set Device Time ===
638
639
640 (((
641 There are two ways to set device's time:
642 )))
643
644 (((
645 **~1. Through LoRaWAN MAC Command (Default settings)**
646 )))
647
648 (((
649 User need to set SYNCMOD=1 to enable sync time via MAC command.
650 )))
651
652 (((
653 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).
654 )))
655
656 (((
657 (% 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.**
658 )))
659
660 (((
661
662 )))
663
664 (((
665 **2. Manually Set Time**
666 )))
667
668 (((
669 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
670 )))
671
672
673
674 === 2.6.4 Poll sensor value ===
675
676
677 User can poll sensor value based on timestamps from the server. Below is the downlink command.
678
679 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
680
681
682 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.
683
684 For example, downlink command **31 5FC5F350 5FC6 0160 05**
685
686 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
687
688 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
689
690
691
692 === 2.6.5 Datalog Uplink payload ===
693
694
695 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
696 The Datalog poll reply uplink will use below payload format.
697
698 (% _mstvisible="1" %)
699 (((
700 (% _mstvisible="2" %)
701
702
703 (% _mstvisible="2" %)
704 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
705 )))
706
707 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
708 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
709 (((
710 (% _mstvisible="6" %)
711 (((
712 (% _mstvisible="7" %)
713 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
714 )))
715 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
716 (((
717 (% _mstvisible="6" %)
718 (((
719 (% _mstvisible="7" %)
720 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
721 )))
722 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
723 (((
724 (% _mstvisible="6" %)
725 (((
726 (% _mstvisible="7" %)
727 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
728 )))
729 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
730 (((
731 (% _mstvisible="6" %)
732 (((
733 (% _mstvisible="7" %)
734 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
735 )))
736 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
737 (((
738 (% _mstvisible="6" %)
739 (((
740 (% _mstvisible="7" %)
741 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
742 )))
743 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
744 (((
745 (% _mstvisible="6" %)
746 (((
747 (% _mstvisible="7" %)
748 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
749 )))
750 )))
751 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
752 (((
753 (% _mstvisible="6" %)
754 (((
755 (% _mstvisible="7" %)
756 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
757 )))
758 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
759 (((
760 (% _mstvisible="6" %)
761 (((
762 (% _mstvisible="7" %)
763 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
764 )))
765 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
766 (((
767 (% _mstvisible="6" %)
768 (((
769 (% _mstvisible="7" %)
770 (((
771 (% _mstvisible="8" %)
772 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
773 )))
774 )))
775
776 (% _mstvisible="6" %)
777 (((
778 (% _mstvisible="7" %)
779 (((
780 (% _mstvisible="8" %)
781 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
782 )))
783 )))
784 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
785 (((
786 (% _mstvisible="6" %)
787 (((
788 (% _mstvisible="7" %)
789 (((
790 (% _mstvisible="8" %)
791 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
792 )))
793 )))
794
795 (% _mstvisible="6" %)
796 (((
797 (% _mstvisible="7" %)
798 (((
799 (% _mstvisible="8" %)
800 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
801 )))
802 )))
803 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
804 (((
805 (% _mstvisible="6" %)
806 (((
807 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
808 Poll message flag & Ext
809 )))
810 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
811 (((
812 (% _mstvisible="6" %)
813 (((
814 (% _mstvisible="7" %)
815 (((
816 (% _mstvisible="8" %)
817 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
818 )))
819 )))
820
821 (% _mstvisible="6" %)
822 (((
823 (% _mstvisible="7" %)
824 (((
825 (% _mstvisible="8" %)
826
827 )))
828 )))
829 )))
830
831
832 (% _mstvisible="1" %)
833 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
834
835 (% _mstvisible="1" %)
836 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
837
838 (% _mstvisible="1" %)
839 (((
840 (% _mstvisible="2" %)
841 (((
842 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
843 (((
844 Poll Message Flag: 1: This message is a poll message reply.
845 )))
846 )))
847 )))
848
849 (% _mstvisible="1" %)
850 * (% _mstvisible="3" %)
851 (((
852 (% _mstvisible="4" %)
853 (((
854 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
855 (((
856 Poll Message Flag is set to 1.
857 )))
858 )))
859 )))
860 * (% _mstvisible="3" %)
861 (((
862 (% _mstvisible="4" %)
863 (((
864 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
865 (((
866 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
867 )))
868 )))
869 )))
870
871 (% _mstvisible="1" %)
872 (((
873 (% _mstvisible="2" %)
874 (((
875 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
876 (((
877
878 )))
879
880 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
881 (((
882 For example, in US915 band, the max payload for different DR is:
883 )))
884 )))
885 )))
886
887 (% _mstvisible="1" %)
888 (((
889 (% _mstvisible="2" %)
890 (((
891 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
892 (((
893 a) DR0: max is 11 bytes so one entry of data
894 )))
895 )))
896 )))
897
898 (% _mstvisible="1" %)
899 (((
900 (% _mstvisible="2" %)
901 (((
902 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
903 (((
904 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
905 )))
906 )))
907 )))
908
909 (% _mstvisible="1" %)
910 (((
911 (% _mstvisible="2" %)
912 (((
913 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
914 (((
915 c) DR2: total payload includes 11 entries of data
916 )))
917 )))
918 )))
919
920 (% _mstvisible="1" %)
921 (((
922 (% _mstvisible="2" %)
923 (((
924 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
925 (((
926 d) DR3: total payload includes 22 entries of data.
927 )))
928 )))
929 )))
930
931 (% _mstvisible="1" %)
932 (((
933 (% _mstvisible="2" %)
934 (((
935 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
936 (((
937 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
938 )))
939 )))
940 )))
941
942
943 (% _mstvisible="1" style="text-align: left;" %)
944 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
945
946 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
947 If LHT65N has below data inside Flash:
948
949 (% _mstvisible="1" %)
950 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
951
952 (% _mstvisible="1" %)
953 (((
954 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
955 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
956 )))
957
958 (% _mstvisible="1" %)
959 (((
960 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
961 Where : Start time: 60065F97 = time 21/1/19 04:27:03
962 )))
963
964 (% _mstvisible="1" %)
965 (((
966 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
967 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
968 )))
969
970 (% _mstvisible="1" %)
971 (((
972 (% _mstvisible="2" %)
973
974 )))
975
976 (% _mstvisible="1" %)
977 (((
978 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
979 LHT65N will uplink this payload.
980 )))
981
982 (% _mstvisible="1" %)
983 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
984
985 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
986 (((
987 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
988 )))
989
990 (% _msthash="315237" _msttexthash="1385839" %)
991 (((
992 Where the first 11 bytes is for the first entry:
993 )))
994
995 (% _msthash="315238" _msttexthash="274846" %)
996 (((
997 7FFF089801464160065F97
998 )))
999
1000 (% _msthash="315239" _msttexthash="617435" %)
1001 (((
1002 Ext sensor data=0x7FFF/100=327.67
1003 )))
1004
1005 (% _msthash="315240" _msttexthash="270543" %)
1006 (((
1007 Temp=0x0898/100=22.00
1008 )))
1009
1010 (% _msthash="315241" _msttexthash="211783" %)
1011 (((
1012 Hum=0x0146/10=32.6
1013 )))
1014
1015 (% _msthash="315242" _msttexthash="1569776" %)
1016 (((
1017 poll message flag & Ext=0x41,means reply data,Ext=1
1018 )))
1019
1020 (% _msthash="315243" _msttexthash="1120509" %)
1021 (((
1022 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1023 )))
1024
1025
1026
1027 == 2.7 Alarm Mode ==
1028
1029 (((
1030 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.
1031 )))
1032
1033 (((
1034 (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1035 )))
1036
1037 (((
1038 **AT COMMAND FOR ALARM MODE:**
1039 )))
1040
1041 (% _mstvisible="1" class="box infomessage" %)
1042 (((
1043 (((
1044 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1045 )))
1046
1047 (((
1048 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1049 )))
1050
1051 (((
1052 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1053 )))
1054
1055 (((
1056 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1057 )))
1058
1059 (((
1060 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1061 )))
1062 )))
1063
1064 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1065
1066 Total bytes: 8 bytes
1067
1068 **Example:**AA0100010001003C
1069
1070 WMOD=01
1071
1072 CITEMP=0001
1073
1074 TEMPlow=0001
1075
1076 TEMPhigh=003C
1077
1078
1079 == 2.8 LED Indicator ==
1080
1081 The LHT65 has a triple color LED which for easy showing different stage .
1082
1083 While user press ACT button, the LED will work as per LED status with ACT button.
1084
1085 In a normal working state:
1086
1087 * For each uplink, the BLUE LED or RED LED will blink once.
1088 BLUE LED when external sensor is connected.
1089 * RED LED when external sensor is not connected
1090 * For each success downlink, the PURPLE LED will blink once
1091
1092
1093 == 2.9 installation ==
1094
1095 (% _mstvisible="1" %)
1096 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1097
1098
1099
1100 = 3. Sensors and Accessories =
1101
1102 == 3.1 E2 Extension Cable ==
1103
1104 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1105
1106 **1m long breakout cable for LHT65N. Features:**
1107
1108 * (((
1109 Use for AT Command， works for both LHT52/LHT65N
1110 )))
1111 * (((
1112 Update firmware for LHT65N, works for both LHT52/LHT65N
1113 )))
1114 * (((
1115 Supports ADC mode to monitor external ADC
1116 )))
1117 * (((
1118 Supports Interrupt mode
1119 )))
1120 * (((
1121 Exposed All pins from the LHT65N Type-C connector.
1122 )))
1123
1124 [[image:image-20220619092421-3.png||height="371" width="529"]]
1125
1126
1127
1128
1129 == 3.2 E3 Temperature Probe ==
1130
1131
1132 [[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"]]
1133
1134
1135 Temperature sensor with 2 meters cable long
1136
1137 * Resolution: 0.0625 °C
1138 * ±0.5°C accuracy from -10°C to +85°C
1139 * ±2°C accuracy from -55°C to +125°C
1140 * Operating Range: -40 ~~ 125 °C
1141 * Working voltage 2.35v ~~ 5v
1142
1143
1144 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1145
1146 (((
1147 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1148 )))
1149
1150 * (((
1151 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1152 )))
1153
1154 * (((
1155 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1156 )))
1157
1158 (((
1159 There are two kinds of commands to configure LHT65N, they are:
1160 )))
1161
1162 * (((
1163 (% style="color:#4f81bd" %)**General Commands**.
1164 )))
1165
1166 (((
1167 These commands are to configure:
1168 )))
1169
1170 1. (((
1171 General system settings like: uplink interval.
1172 )))
1173 1. (((
1174 LoRaWAN protocol & radio-related commands.
1175 )))
1176
1177 (((
1178 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]]
1179 )))
1180
1181 * (((
1182 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1183 )))
1184
1185 (((
1186 These commands are only valid for LHT65N, as below:
1187 )))
1188
1189
1190 == 4.1 Set Transmit Interval Time ==
1191
1192 Feature: Change LoRaWAN End Node Transmit Interval.
1193
1194 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1195
1196 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1197
1198
1199 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1200
1201 Format: Command Code (0x01) followed by 3 bytes time value.
1202
1203 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1204
1205 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1206
1207 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1208
1209
1210 == 4.2 Set External Sensor Mode ==
1211
1212 Feature: Change External Sensor Mode.
1213
1214 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1215
1216 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1217
1218
1219 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1220
1221 Total bytes: 2 ~~ 5 bytes
1222
1223 **Example:**
1224
1225 * 0xA201: Set external sensor type to E1
1226
1227 * 0xA209: Same as AT+EXT=9
1228
1229 * 0xA20702003c: Same as AT+SETCNT=60
1230
1231
1232 == 4.3 Enable/Disable uplink Temperature probe ID ==
1233
1234 (((
1235 Feature: If PID is enabled, device will send the temperature probe ID on:
1236 )))
1237
1238 * (((
1239 First Packet after OTAA Join
1240 )))
1241 * (((
1242 Every 24 hours since the first packet.
1243 )))
1244
1245 (((
1246 PID is default set to disable (0)
1247 )))
1248
1249 (% style="color:#4f81bd" %)**AT Command:**
1250
1251 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1252
1253
1254 (% style="color:#4f81bd" %)**Downlink Command:**
1255
1256 * **0xA800**  **~-~->** AT+PID=0
1257 * **0xA801**     **~-~->** AT+PID=1
1258
1259
1260 == 4.4 Set Password ==
1261
1262 Feature: Set device password, max 9 digits
1263
1264 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1265
1266 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1267
1268
1269 (% style="color:#4f81bd" %)**Downlink Command:**
1270
1271 No downlink command for this feature.
1272
1273
1274
1275 == 4.5 Quit AT Command ==
1276
1277 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1278
1279 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1280
1281 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1282
1283
1284 (% style="color:#4f81bd" %)**Downlink Command:**
1285
1286 No downlink command for this feature.
1287
1288
1289
1290 == 4.6 Set to sleep mode ==
1291
1292 Feature: Set device to sleep mode
1293
1294 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1295 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1296
1297 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1298
1299 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1300
1301
1302 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1303
1304 * There is no downlink command to set to Sleep mode.
1305
1306
1307 == 4.7 Set system time ==
1308
1309 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1310
1311 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1312
1313 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1314
1315
1316 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1317
1318 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1319
1320
1321
1322 == 4.8 Set Time Sync Mode ==
1323
1324 (((
1325 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1326 )))
1327
1328 (((
1329 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.
1330 )))
1331
1332 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1333
1334 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1335
1336
1337 (% style="color:#4f81bd" %)**Downlink Command:**
1338
1339 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1340 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1341
1342
1343
1344 == 4.9 Set Time Sync Interval ==
1345
1346 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1347
1348 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1349
1350 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1351
1352
1353 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1354
1355 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1356
1357
1358
1359 == 4.10 Print data entries base on page. ==
1360
1361 Feature: Print the sector data from start page to stop page (max is 416 pages).
1362
1363 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1364
1365 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1366
1367
1368 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1369
1370 No downlink commands for feature
1371
1372
1373
1374 == 4.11 Print last few data entries. ==
1375
1376 Feature: Print the last few data entries
1377
1378 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1379
1380 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1381
1382
1383 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1384
1385 No downlink commands for feature
1386
1387
1388
1389 == 4.12 Clear Flash Record ==
1390
1391 Feature: Clear flash storage for data log feature.
1392
1393
1394 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1395
1396 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1397
1398
1399 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1400
1401 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1402
1403
1404 == 4.13 Auto Send None-ACK messages ==
1405
1406 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1407 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.
1408
1409 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1410
1411 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1412 The default factory setting is 0
1413
1414 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1415 (% _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**
1416 (% _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
1417
1418 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1419
1420 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1421
1422
1423 = 5. Battery & How to replace =
1424
1425 == 5.1 Battery Type ==
1426
1427 (((
1428 (((
1429 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.
1430 )))
1431 )))
1432
1433 (((
1434
1435 )))
1436
1437 (((
1438 (((
1439 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1440 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1441 )))
1442 )))
1443
1444 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1445
1446
1447 == 5.2 Replace Battery ==
1448
1449 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.
1450
1451 [[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"]]
1452
1453
1454 == 5.3 Battery Life Analyze ==
1455
1456 (((
1457 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:
1458 [[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]]
1459 )))
1460
1461 (((
1462
1463 )))
1464
1465 (((
1466 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]]
1467 )))
1468
1469
1470
1471 = 6. FAQ =
1472
1473 == 6.1 How to use AT Command? ==
1474
1475 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.
1476
1477 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1478
1479
1480 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1481
1482 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1483 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1484 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1485 * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1486
1487 (((
1488 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.
1489 )))
1490
1491
1492 Input password and ATZ to activate LHT65N,As shown below:
1493
1494 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1495
1496
1497 (% _msthash="506066" _msttexthash="544869" %)
1498 AT Command List is as below:
1499
1500 (% _msthash="506067" _msttexthash="361920" %)
1501 AT+<CMD>? :  Help on <CMD>
1502
1503 (% _msthash="506068" _msttexthash="243061" %)
1504 AT+<CMD> :  Run <CMD>
1505
1506 (% _msthash="506069" _msttexthash="704197" %)
1507 AT+<CMD>=<value> :  Set the value
1508
1509 (% _msthash="506070" _msttexthash="455676" %)
1510 AT+<CMD>=? :  Get the value
1511
1512 (% _msthash="506071" _msttexthash="670553" %)
1513 AT+DEBUG:  Set more info output
1514
1515 (% _msthash="506072" _msttexthash="485888" %)
1516 ATZ:  Trig a reset of the MCU
1517
1518 (% _msthash="506073" _msttexthash="2068872" %)
1519 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1520
1521 (% _msthash="506074" _msttexthash="689169" %)
1522 AT+DEUI:  Get or Set the Device EUI
1523
1524 (% _msthash="506075" _msttexthash="960414" %)
1525 AT+DADDR:  Get or Set the Device Address
1526
1527 (% _msthash="506076" _msttexthash="1079897" %)
1528 AT+APPKEY:  Get or Set the Application Key
1529
1530 (% _msthash="506077" _msttexthash="1326143" %)
1531 AT+NWKSKEY:  Get or Set the Network Session Key
1532
1533 (% _msthash="506078" _msttexthash="1573000" %)
1534 AT+APPSKEY:  Get or Set the Application Session Key
1535
1536 (% _msthash="506079" _msttexthash="1041729" %)
1537 AT+APPEUI:  Get or Set the Application EUI
1538
1539 (% _msthash="506080" _msttexthash="2104206" %)
1540 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1541
1542 (% _msthash="506081" _msttexthash="3369288" %)
1543 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1544
1545 (% _msthash="506082" _msttexthash="1894529" %)
1546 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1547
1548 (% _msthash="506083" _msttexthash="3864172" %)
1549 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1550
1551 (% _msthash="506084" _msttexthash="1712204" %)
1552 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1553
1554 (% _msthash="506085" _msttexthash="1281202" %)
1555 AT+RX2FQ:  Get or Set the Rx2 window frequency
1556
1557 (% _msthash="506086" _msttexthash="2796781" %)
1558 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1559
1560 (% _msthash="506087" _msttexthash="3285165" %)
1561 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1562
1563 (% _msthash="506088" _msttexthash="3286179" %)
1564 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1565
1566 (% _msthash="506089" _msttexthash="4703803" %)
1567 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1568
1569 (% _msthash="506090" _msttexthash="4704999" %)
1570 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1571
1572 (% _msthash="506091" _msttexthash="1528683" %)
1573 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1574
1575 (% _msthash="506092" _msttexthash="757185" %)
1576 AT+NWKID:  Get or Set the Network ID
1577
1578 (% _msthash="506093" _msttexthash="1156597" %)
1579 AT+FCU:  Get or Set the Frame Counter Uplink
1580
1581 (% _msthash="506094" _msttexthash="1273987" %)
1582 AT+FCD:  Get or Set the Frame Counter Downlink
1583
1584 (% _msthash="506095" _msttexthash="859222" %)
1585 AT+CLASS:  Get or Set the Device Class
1586
1587 (% _msthash="506096" _msttexthash="384852" %)
1588 AT+JOIN:  Join network
1589
1590 (% _msthash="506097" _msttexthash="548626" %)
1591 AT+NJS:  Get the join status
1592
1593 (% _msthash="506098" _msttexthash="2546206" %)
1594 AT+SENDB:  Send hexadecimal data along with the application port
1595
1596 (% _msthash="506099" _msttexthash="1932307" %)
1597 AT+SEND:  Send text data along with the application port
1598
1599 (% _msthash="506100" _msttexthash="3560557" %)
1600 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1601
1602 (% _msthash="506101" _msttexthash="1429701" %)
1603 AT+RECV:  Print last received data in raw format
1604
1605 (% _msthash="506102" _msttexthash="1735981" %)
1606 AT+VER:  Get current image version and Frequency Band
1607
1608 (% _msthash="506103" _msttexthash="1189474" %)
1609 AT+CFM:  Get or Set the confirmation mode (0-1)
1610
1611 (% _msthash="506104" _msttexthash="1718210" %)
1612 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1613
1614 (% _msthash="506105" _msttexthash="1339403" %)
1615 AT+SNR:  Get the SNR of the last received packet
1616
1617 (% _msthash="506106" _msttexthash="1452009" %)
1618 AT+RSSI:  Get the RSSI of the last received packet
1619
1620 (% _msthash="506107" _msttexthash="2768142" %)
1621 AT+TDC:  Get or set the application data transmission interval in ms
1622
1623 (% _msthash="506108" _msttexthash="1083914" %)
1624 AT+PORT:  Get or set the application port
1625
1626 (% _msthash="506109" _msttexthash="622440" %)
1627 AT+DISAT:  Disable AT commands
1628
1629 (% _msthash="506110" _msttexthash="868361" %)
1630 AT+PWORD: Set password, max 9 digits
1631
1632 (% _msthash="506111" _msttexthash="2210299" %)
1633 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1634
1635 (% _msthash="506112" _msttexthash="2113462" %)
1636 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1637
1638 (% _msthash="506113" _msttexthash="2087423" %)
1639 AT+PDTA:  Print the sector data from start page to stop page
1640
1641 (% _msthash="506114" _msttexthash="1063127" %)
1642 AT+PLDTA:  Print the last few sets of data
1643
1644 (% _msthash="506115" _msttexthash="1999426" %)
1645 AT+CLRDTA:  Clear the storage, record position back to 1st
1646
1647 (% _msthash="506116" _msttexthash="442130" %)
1648 AT+SLEEP:  Set sleep mode
1649
1650 (% _msthash="506117" _msttexthash="1080222" %)
1651 AT+EXT:  Get or Set external sensor model
1652
1653 (% _msthash="506118" _msttexthash="1309490" %)
1654 AT+BAT:  Get the current battery voltage in mV
1655
1656 (% _msthash="506119" _msttexthash="813891" %)
1657 AT+CFG:  Print all configurations
1658
1659 (% _msthash="506120" _msttexthash="551707" %)
1660 AT+WMOD:  Get or Set Work Mode
1661
1662 (% _msthash="506121" _msttexthash="2631499" %)
1663 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1664
1665 (% _msthash="506122" _msttexthash="3907150" %)
1666 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1667
1668 (% _msthash="506123" _msttexthash="854620" %)
1669 AT+SETCNT:  Set the count at present
1670
1671 (% _msthash="506124" _msttexthash="2554877" %)
1672 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1673
1674 (% _msthash="506125" _msttexthash="771849" %)
1675 AT+RPL:  Get or set response level
1676
1677 (% _msthash="506126" _msttexthash="1484314" %)
1678 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1679
1680 (% _msthash="506127" _msttexthash="741728" %)
1681 AT+LEAPSEC:  Get or Set Leap Second
1682
1683 (% _msthash="506128" _msttexthash="1694017" %)
1684 AT+SYNCMOD:  Get or Set time synchronization method
1685
1686 (% _msthash="506129" _msttexthash="2235948" %)
1687 AT+SYNCTDC:  Get or set time synchronization interval in day
1688
1689 (% _msthash="506130" _msttexthash="425542" %)
1690 AT+PID:  Get or set the PID
1691
1692
1693 == 6.2 Where to use AT commands and Downlink commands ==
1694
1695 (% _msthash="506131" _msttexthash="14585714" %)
1696 AT commands：
1697
1698 [[image:image-20220620153708-1.png||height="603" width="723"]]
1699
1700 (% _msthash="506132" _msttexthash="337922" %)
1701 Downlink commands:
1702
1703
1704 (% _msthash="506133" _msttexthash="33046" %)
1705 **TTN:**
1706
1707 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1708
1709
1710 (% _msthash="506134" _msttexthash="11113791" %)
1711 **Helium：**
1712
1713 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1714
1715
1716 (% _msthash="506135" _msttexthash="4159844" %)
1717 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1718
1719 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1720
1721 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1722
1723
1724 (% _msthash="506136" _msttexthash="39286" %)
1725 **Aws:**
1726
1727 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1728
1729
1730
1731 == 6.3 How to change the uplink interval？ ==
1732
1733 [[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"]]
1734
1735
1736
1737 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1738
1739 [[image:image-20220615153355-1.png]]
1740
1741 [[image:1655802313617-381.png]]
1742
1743
1744 (((
1745 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.
1746 )))
1747
1748
1749 Input password and ATZ to activate LHT65N,As shown below:
1750
1751 [[image:image-20220615154519-3.png||height="672" width="807"]]
1752
1753
1754
1755 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1756
1757
1758 [[image:image-20220615153355-1.png]]
1759
1760
1761 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1762
1763 [[image:image-20220615170542-5.png]]
1764
1765
1766 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1767
1768 (% _msthash="506146" _msttexthash="52173160" %)
1769 First connect the four lines；(% style="display:none" %)
1770
1771 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1772
1773
1774 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1775
1776 [[image:image-20220621170938-2.png]]
1777
1778
1779 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1780
1781 [[image:image-20220615171334-6.png]]
1782
1783
1784 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1785
1786
1787 When this interface appears, it indicates that the download has been completed.
1788
1789 [[image:image-20220620160723-8.png]]
1790
1791
1792 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1793
1794
1795 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1796
1797 [[image:image-20220623110706-1.png]]
1798
1799
1800 [[image:image-20220623112117-4.png||height="459" width="343"]]
1801
1802 (((
1803 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.
1804 )))
1805
1806
1807 Input password and ATZ to activate LHT65N,As shown below:
1808
1809 [[image:image-20220615154519-3.png||height="672" width="807"]]
1810
1811
1812 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1813
1814 [[image:image-20220623110706-1.png]]
1815
1816 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1817
1818 [[image:image-20220615170542-5.png]]
1819
1820
1821 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1822
1823 (% _msthash="506146" _msttexthash="52173160" %)
1824 First connect the four lines；
1825
1826 (% _msthash="506146" _msttexthash="52173160" %)
1827 [[image:image-20220623113959-5.png||height="528" width="397"]]
1828
1829 (% _msthash="506146" _msttexthash="52173160" %)
1830 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1831
1832 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1833
1834 [[image:image-20220615171334-6.png]]
1835
1836
1837 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1838
1839
1840 When this interface appears, it indicates that the download has been completed.
1841
1842 [[image:image-20220620160723-8.png]]
1843
1844
1845 Finally,restart reset device again
1846
1847
1848 = 7. Order Info =
1849
1850
1851 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1852
1853 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1854
1855 (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1856
1857 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1858
1859 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1860
1861 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1862
1863 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1864
1865 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1866
1867 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1868
1869 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1870
1871 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1872
1873 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1874
1875
1876 = 8. Packing Info =
1877
1878
1879 **Package Includes**:
1880
1881 * LHT65N Temperature & Humidity Sensor x 1
1882 * Optional external sensor
1883
1884 **Dimension and weight**:
1885
1886 * Device Size:  10 x 10 x 3.5 cm
1887 * Device Weight: 120.5g
1888
1889
1890 = 9. Reference material =
1891
1892 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1893
1894
1895 = 10. FCC Warning =
1896
1897 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1898
1899 (1) This device may not cause harmful interference；
1900
1901 (2) this device must accept any interference received, including interference that may cause undesired operation.