Version 190.1 by Edwin Chen on 2022/08/23 10:24
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9 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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11 {{toc/}}
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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 (Max 3328 records)
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 = 2. Connect LHT65N to IoT Server =
91
92 == 2.1 How does LHT65N work? ==
93
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
105 == 2.2 How to Activate LHT65N? ==
106
107
108 (((
109 The LHT65N has two working modes:
110 )))
111
112 * (((
113 (% 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.
114 )))
115 * (((
116 (% 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. 
117 )))
118
119 (((
120 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
121 )))
122
123
124 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
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126 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
127
128
129
130 == 2.3 Example to join LoRaWAN network ==
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132
133 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
134 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.
135
136 (% _mstvisible="1" class="wikigeneratedid" %)
137 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
138
139
140 (((
141 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:
142 )))
143
144
145
146 === 2.3.1 Step 1: Create Device n TTN ===
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148
149 (((
150 Create a device in TTN V3 with the OTAA keys from LHT65N.
151 )))
152
153 (((
154 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
155 )))
156
157 [[image:image-20220617150003-1.jpeg]]
158
159 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
160
161 Add APP EUI in the application.
162
163
164 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
165
166
167 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
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169
170 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
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173
174 (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
175
176
177 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
178
179
180 Input APP EUI,  APP KEY and DEV EUI:
181
182
183 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
184
185
186
187
188 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
189
190
191 (((
192 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.
193 )))
194
195 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
196
197
198
199
200 == 2.4 Uplink Payload ==
201
202
203 (((
204 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.
205 )))
206
207 (((
208 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
209 )))
210
211 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
212 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
213 (((
214 (% _mstvisible="6" %)
215 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
216 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
217 (((
218 (% _mstvisible="6" %)
219 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
220 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
221 (((
222 (% _mstvisible="6" %)
223 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
224 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
225 (((
226 (% _mstvisible="6" %)
227 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
228 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
229 (((
230 (% _mstvisible="6" %)
231 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
232 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
233 (((
234 (% _mstvisible="6" %)
235 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
236 )))
237 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
238 (((
239 (% _mstvisible="6" %)
240 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
241 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
242 (((
243 (% _mstvisible="6" %)
244 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
245 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
246 (((
247 (% _mstvisible="6" %)
248 (((
249 (% _mstvisible="7" %)
250 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
251 )))
252 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
253 (((
254 (% _mstvisible="6" %)
255 (((
256 (% _mstvisible="7" %)
257 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
258 )))
259
260 (% _mstvisible="6" %)
261 (((
262 (% _mstvisible="7" %)
263 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
264 )))
265 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
266 (((
267 (% _mstvisible="6" %)
268 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
269 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
270 (((
271 (% _mstvisible="6" %)
272 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
273 )))
274
275 * The First 6 bytes: has fix meanings for every LHT65N.
276 * The 7th byte (EXT #): defines the external sensor model.
277 * 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.)
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279
280
281 === 2.4.1 Decoder in TTN V3 ===
282
283
284 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.
285
286 Below is the position to put the decoder and LHT65N decoder can be download from here:
287
288
289 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
290
291
292 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
293
294
295
296
297 === 2.4.2 BAT-Battery Info ===
298
299
300 These two bytes of BAT include the battery state and the actually voltage
301
302 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
303
304
305 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
306
307
308 Check the battery voltage for LHT65N.
309
310 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
311 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
312
313
314
315 === 2.4.3 Built-in Temperature ===
316
317
318 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
319
320 * Temperature:  0x0ABB/100=27.47℃
321
322 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
323
324 * Temperature:  (0xF5C6-65536)/100=-26.18℃
325
326
327
328 === 2.4.4 Built-in Humidity ===
329
330
331 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
332
333 * Humidity:    0x025C/10=60.4%
334
335
336
337 === 2.4.5 Ext # ===
338
339
340 Bytes for External Sensor:
341
342 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
343
344
345
346 === 2.4.6 Ext value ===
347
348
349 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
350
351
352 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
353
354
355 * DS18B20 temp=0x0ADD/100=27.81℃
356
357 The last 2 bytes of data are meaningless
358
359 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
360
361
362 * External temperature= (0xF54F-65536)/100=-27.37℃
363
364 The last 2 bytes of data are meaningless
365
366 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
367
368
369
370 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
371
372
373 (((
374 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:
375 )))
376
377 (((
378
379 )))
380
381 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
382 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
383 (((
384 (% _mstvisible="6" %)
385 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
386 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
387 (((
388 (% _mstvisible="6" %)
389 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
390 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
391 (((
392 (% _mstvisible="6" %)
393 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
394 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
395 (((
396 (% _mstvisible="6" %)
397 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
398 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
399 (((
400 (% _mstvisible="6" %)
401 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
402 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
403 (((
404 (% _mstvisible="6" %)
405 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
406 )))
407 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
408 (((
409 (% _mstvisible="6" %)
410 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
411 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
412 (((
413 (% _mstvisible="6" %)
414 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
415 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
416 (((
417 (% _mstvisible="6" %)
418 (((
419 (% _mstvisible="7" %)
420 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
421 )))
422
423 (% _mstvisible="6" %)
424 (((
425 (% _mstvisible="7" %)
426 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
427 )))
428 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
429 (((
430 (% _mstvisible="6" %)
431 (((
432 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
433 BAT Status &
434 )))
435
436 (% _mstvisible="6" %)
437 (((
438 (% _mstvisible="7" %)
439 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
440 )))
441 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
442 (((
443 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
444 Status & Ext
445 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
446 (((
447 (% _mstvisible="6" %)
448 (((
449 (% _mstvisible="7" %)
450 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
451 )))
452 )))
453
454 (% _mstvisible="1" %)
455 * (% _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**
456
457 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
458 (% _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]
459 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
460 (((
461 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
462 BAT Status
463
464 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
465 00(b): Ultra Low ( BAT <= 2.50v)
466
467 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
468 01(b): Low  (2.50v <=BAT <= 2.55v)
469
470 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
471 10(b): OK   (2.55v <= BAT <=2.65v)
472
473 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
474 11(b): Good   (BAT >= 2.65v)
475 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
476 (((
477 (% _mstvisible="6" %)
478 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
479
480 (% _mstvisible="6" %)
481
482 )))
483
484 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
485
486 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
487 |(% 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]**
488 |(% 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)
489
490 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
491 * (% 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.
492 * (% 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)
493
494
495
496 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
497
498
499 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
500
501 be used to power the external ADC sensor; user can control the power on time for this
502
503 sensor by setting:
504
505 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
506
507 For example:
508
509 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
510
511
512 Or use **downlink command A2** to set the same.
513
514 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
515
516 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.
517
518 [[image:image-20220628150112-1.png||height="241" width="285"]]
519
520
521 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
522
523 [[image:image-20220628150714-4.png]]
524
525
526 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.
527
528 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
529
530 [[image:image-20220628151005-5.png]]
531
532
533 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
534
535 [[image:image-20220628151056-6.png]]
536
537
538 3) Within range
539
540 [[image:image-20220628151143-7.png]]
541
542
543
544 == 2.5 Show data on Datacake ==
545
546
547 (((
548 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:
549 )))
550
551 (((
552
553 )))
554
555 (((
556 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
557 )))
558
559 (((
560 (% 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.
561 )))
562
563 (((
564
565 )))
566
567 (((
568 Add Datacake:
569 )))
570
571
572 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
573
574
575
576 Select default key as Access Key:
577
578
579 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
580
581
582 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
583
584
585 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
586
587
588 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
589
590
591
592 == 2.6 Datalog Feature ==
593
594
595 (((
596 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.
597 )))
598
599
600
601 === 2.6.1 Ways to get datalog via LoRaWAN ===
602
603
604 There are two methods:
605
606 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
607 1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack message and store the sensor data, and it will send all messages (10s interval) after the network recovery. note: a) LHT65N will do ack check for data records sending to make sure every data arrive server. b) LHT65N will send data in CONFIRMED Mode when PNACKMD=1, but it won't re-transmit the same packet , it will just mark it as NONE-ACK and resend after network is detected.
608
609 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
610
611 [[image:image-20220703111700-2.png||height="381" width="1119"]]
612
613
614 === 2.6.2 Unix TimeStamp ===
615
616
617 LHT65N uses Unix TimeStamp format based on
618
619
620 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
621
622
623
624 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
625
626 Below is the converter example
627
628 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
629
630 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
631
632
633
634 === 2.6.3 Set Device Time ===
635
636
637 (((
638 There are two ways to set device's time:
639 )))
640
641 (((
642 **~1. Through LoRaWAN MAC Command (Default settings)**
643 )))
644
645 (((
646 User need to set SYNCMOD=1 to enable sync time via MAC command.
647 )))
648
649 (((
650 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).
651 )))
652
653 (((
654 (% 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.**
655 )))
656
657 (((
658
659 )))
660
661 (((
662 **2. Manually Set Time**
663 )))
664
665 (((
666 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
667 )))
668
669
670
671 === 2.6.4 Poll sensor value ===
672
673
674 User can poll sensor value based on timestamps from the server. Below is the downlink command.
675
676 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
677
678
679 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.
680
681 For example, downlink command **31 5FC5F350 5FC6 0160 05**
682
683 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
684
685 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
686
687
688
689 === 2.6.5 Datalog Uplink payload ===
690
691
692 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
693 The Datalog poll reply uplink will use below payload format.
694
695 (% _mstvisible="1" %)
696 (((
697 (% _mstvisible="2" %)
698
699
700 (% _mstvisible="2" %)
701 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
702 )))
703
704 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
705 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
706 (((
707 (% _mstvisible="6" %)
708 (((
709 (% _mstvisible="7" %)
710 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
711 )))
712 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
713 (((
714 (% _mstvisible="6" %)
715 (((
716 (% _mstvisible="7" %)
717 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
718 )))
719 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
720 (((
721 (% _mstvisible="6" %)
722 (((
723 (% _mstvisible="7" %)
724 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
725 )))
726 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
727 (((
728 (% _mstvisible="6" %)
729 (((
730 (% _mstvisible="7" %)
731 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
732 )))
733 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
734 (((
735 (% _mstvisible="6" %)
736 (((
737 (% _mstvisible="7" %)
738 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
739 )))
740 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
741 (((
742 (% _mstvisible="6" %)
743 (((
744 (% _mstvisible="7" %)
745 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
746 )))
747 )))
748 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
749 (((
750 (% _mstvisible="6" %)
751 (((
752 (% _mstvisible="7" %)
753 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
754 )))
755 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
756 (((
757 (% _mstvisible="6" %)
758 (((
759 (% _mstvisible="7" %)
760 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
761 )))
762 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
763 (((
764 (% _mstvisible="6" %)
765 (((
766 (% _mstvisible="7" %)
767 (((
768 (% _mstvisible="8" %)
769 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
770 )))
771 )))
772
773 (% _mstvisible="6" %)
774 (((
775 (% _mstvisible="7" %)
776 (((
777 (% _mstvisible="8" %)
778 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
779 )))
780 )))
781 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
782 (((
783 (% _mstvisible="6" %)
784 (((
785 (% _mstvisible="7" %)
786 (((
787 (% _mstvisible="8" %)
788 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
789 )))
790 )))
791
792 (% _mstvisible="6" %)
793 (((
794 (% _mstvisible="7" %)
795 (((
796 (% _mstvisible="8" %)
797 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
798 )))
799 )))
800 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
801 (((
802 (% _mstvisible="6" %)
803 (((
804 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
805 Poll message flag & Ext
806 )))
807 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
808 (((
809 (% _mstvisible="6" %)
810 (((
811 (% _mstvisible="7" %)
812 (((
813 (% _mstvisible="8" %)
814 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
815 )))
816 )))
817
818 (% _mstvisible="6" %)
819 (((
820 (% _mstvisible="7" %)
821 (((
822 (% _mstvisible="8" %)
823
824 )))
825 )))
826 )))
827
828 (% _mstvisible="1" %)
829 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
830
831 (% _mstvisible="1" %)
832 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
833
834 (% _mstvisible="1" %)
835 (((
836 (% _mstvisible="2" %)
837 (((
838 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
839 (((
840 Poll Message Flag: 1: This message is a poll message reply.
841 )))
842 )))
843 )))
844
845 (% _mstvisible="1" %)
846 * (% _mstvisible="3" %)
847 (((
848 (% _mstvisible="4" %)
849 (((
850 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
851 (((
852 Poll Message Flag is set to 1.
853 )))
854 )))
855 )))
856 * (% _mstvisible="3" %)
857 (((
858 (% _mstvisible="4" %)
859 (((
860 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
861 (((
862 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
863 )))
864 )))
865 )))
866
867 (% _mstvisible="1" %)
868 (((
869 (% _mstvisible="2" %)
870 (((
871 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
872 (((
873
874 )))
875
876 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
877 (((
878 For example, in US915 band, the max payload for different DR is:
879 )))
880 )))
881 )))
882
883 (% _mstvisible="1" %)
884 (((
885 (% _mstvisible="2" %)
886 (((
887 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
888 (((
889 a) DR0: max is 11 bytes so one entry of data
890 )))
891 )))
892 )))
893
894 (% _mstvisible="1" %)
895 (((
896 (% _mstvisible="2" %)
897 (((
898 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
899 (((
900 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
901 )))
902 )))
903 )))
904
905 (% _mstvisible="1" %)
906 (((
907 (% _mstvisible="2" %)
908 (((
909 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
910 (((
911 c) DR2: total payload includes 11 entries of data
912 )))
913 )))
914 )))
915
916 (% _mstvisible="1" %)
917 (((
918 (% _mstvisible="2" %)
919 (((
920 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
921 (((
922 d) DR3: total payload includes 22 entries of data.
923 )))
924 )))
925 )))
926
927 (% _mstvisible="1" %)
928 (((
929 (% _mstvisible="2" %)
930 (((
931 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
932 (((
933 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
934 )))
935 )))
936 )))
937
938
939 (% _mstvisible="1" style="text-align: left;" %)
940 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
941
942 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
943 If LHT65N has below data inside Flash:
944
945 (% _mstvisible="1" %)
946 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
947
948 (% _mstvisible="1" %)
949 (((
950 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
951 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
952 )))
953
954 (% _mstvisible="1" %)
955 (((
956 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
957 Where : Start time: 60065F97 = time 21/1/19 04:27:03
958 )))
959
960 (% _mstvisible="1" %)
961 (((
962 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
963 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
964 )))
965
966 (% _mstvisible="1" %)
967 (((
968 (% _mstvisible="2" %)
969
970 )))
971
972 (% _mstvisible="1" %)
973 (((
974 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
975 LHT65N will uplink this payload.
976 )))
977
978 (% _mstvisible="1" %)
979 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
980
981 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
982 (((
983 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
984 )))
985
986 (% _msthash="315237" _msttexthash="1385839" %)
987 (((
988 Where the first 11 bytes is for the first entry:
989 )))
990
991 (% _msthash="315238" _msttexthash="274846" %)
992 (((
993 7FFF089801464160065F97
994 )))
995
996 (% _msthash="315239" _msttexthash="617435" %)
997 (((
998 Ext sensor data=0x7FFF/100=327.67
999 )))
1000
1001 (% _msthash="315240" _msttexthash="270543" %)
1002 (((
1003 Temp=0x0898/100=22.00
1004 )))
1005
1006 (% _msthash="315241" _msttexthash="211783" %)
1007 (((
1008 Hum=0x0146/10=32.6
1009 )))
1010
1011 (% _msthash="315242" _msttexthash="1569776" %)
1012 (((
1013 poll message flag & Ext=0x41,means reply data,Ext=1
1014 )))
1015
1016 (% _msthash="315243" _msttexthash="1120509" %)
1017 (((
1018 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1019 )))
1020
1021
1022
1023 == 2.7 Alarm Mode ==
1024
1025
1026 (((
1027 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.
1028 )))
1029
1030 (((
1031 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
1032
1033
1034 )))
1035
1036 (((
1037 **AT COMMAND FOR ALARM MODE:**
1038 )))
1039
1040 (% _mstvisible="1" class="box infomessage" %)
1041 (((
1042 (((
1043 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1044 )))
1045
1046 (((
1047 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1048 )))
1049
1050 (((
1051 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1052 )))
1053
1054 (((
1055 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1056 )))
1057
1058 (((
1059 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1060 )))
1061 )))
1062
1063 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1064
1065 Total bytes: 8 bytes
1066
1067 **Example:**AA0100010001003C
1068
1069 WMOD=01
1070
1071 CITEMP=0001
1072
1073 TEMPlow=0001
1074
1075 TEMPhigh=003C
1076
1077
1078
1079 == 2.8 LED Indicator ==
1080
1081
1082 The LHT65 has a triple color LED which for easy showing different stage .
1083
1084 While user press ACT button, the LED will work as per LED status with ACT button.
1085
1086 In a normal working state:
1087
1088 * For each uplink, the BLUE LED or RED LED will blink once.
1089 BLUE LED when external sensor is connected.
1090 * RED LED when external sensor is not connected
1091 * For each success downlink, the PURPLE LED will blink once
1092
1093
1094
1095 == 2.9 installation ==
1096
1097
1098 (% _mstvisible="1" %)
1099 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1100
1101
1102
1103 = 3. Sensors and Accessories =
1104
1105 == 3.1 E2 Extension Cable ==
1106
1107
1108 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1109
1110
1111 **1m long breakout cable for LHT65N. Features:**
1112
1113 * (((
1114 Use for AT Command， works for both LHT52/LHT65N
1115 )))
1116 * (((
1117 Update firmware for LHT65N, works for both LHT52/LHT65N
1118 )))
1119 * (((
1120 Supports ADC mode to monitor external ADC
1121 )))
1122 * (((
1123 Supports Interrupt mode
1124 )))
1125 * (((
1126 Exposed All pins from the LHT65N Type-C connector.
1127
1128
1129
1130 )))
1131
1132 [[image:image-20220619092421-3.png||height="371" width="529"]]
1133
1134
1135
1136
1137 == 3.2 E3 Temperature Probe ==
1138
1139
1140 [[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"]]
1141
1142
1143 Temperature sensor with 2 meters cable long
1144
1145 * Resolution: 0.0625 °C
1146 * ±0.5°C accuracy from -10°C to +85°C
1147 * ±2°C accuracy from -55°C to +125°C
1148 * Operating Range: -40 ~~ 125 °C
1149 * Working voltage 2.35v ~~ 5v
1150
1151
1152
1153 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1154
1155
1156 (((
1157 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1158 )))
1159
1160 * (((
1161 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1162 )))
1163
1164 * (((
1165 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1166 )))
1167
1168 (((
1169 There are two kinds of commands to configure LHT65N, they are:
1170 )))
1171
1172 * (((
1173 (% style="color:#4f81bd" %)**General Commands**.
1174 )))
1175
1176 (((
1177 These commands are to configure:
1178 )))
1179
1180 1. (((
1181 General system settings like: uplink interval.
1182 )))
1183 1. (((
1184 LoRaWAN protocol & radio-related commands.
1185 )))
1186
1187 (((
1188 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]]
1189 )))
1190
1191 * (((
1192 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1193 )))
1194
1195 (((
1196 These commands are only valid for LHT65N, as below:
1197 )))
1198
1199
1200
1201 == 4.1 Set Transmit Interval Time ==
1202
1203
1204 Feature: Change LoRaWAN End Node Transmit Interval.
1205
1206
1207 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1208
1209 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1210
1211
1212 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1213
1214 Format: Command Code (0x01) followed by 3 bytes time value.
1215
1216 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1217
1218 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1219
1220 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1221
1222
1223
1224 == 4.2 Set External Sensor Mode ==
1225
1226
1227 Feature: Change External Sensor Mode.
1228
1229
1230 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1231
1232 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1233
1234
1235 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1236
1237 Total bytes: 2 ~~ 5 bytes
1238
1239 **Example:**
1240
1241 * 0xA201: Set external sensor type to E1
1242
1243 * 0xA209: Same as AT+EXT=9
1244
1245 * 0xA20702003c: Same as AT+SETCNT=60
1246
1247
1248
1249 == 4.3 Enable/Disable uplink Temperature probe ID ==
1250
1251
1252 (((
1253 Feature: If PID is enabled, device will send the temperature probe ID on:
1254 )))
1255
1256 * (((
1257 First Packet after OTAA Join
1258 )))
1259 * (((
1260 Every 24 hours since the first packet.
1261 )))
1262
1263 (((
1264 PID is default set to disable (0)
1265
1266
1267 )))
1268
1269 (% style="color:#4f81bd" %)**AT Command:**
1270
1271 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1272
1273
1274 (% style="color:#4f81bd" %)**Downlink Command:**
1275
1276 * **0xA800**  **~-~->** AT+PID=0
1277 * **0xA801**     **~-~->** AT+PID=1
1278
1279
1280
1281 == 4.4 Set Password ==
1282
1283
1284 Feature: Set device password, max 9 digits
1285
1286
1287 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1288
1289 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1290
1291
1292 (% style="color:#4f81bd" %)**Downlink Command:**
1293
1294 No downlink command for this feature.
1295
1296
1297
1298 == 4.5 Quit AT Command ==
1299
1300
1301 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1302
1303
1304 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1305
1306 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1307
1308
1309 (% style="color:#4f81bd" %)**Downlink Command:**
1310
1311 No downlink command for this feature.
1312
1313
1314
1315 == 4.6 Set to sleep mode ==
1316
1317
1318 Feature: Set device to sleep mode
1319
1320 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1321 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1322
1323 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1324
1325 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1326
1327
1328 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1329
1330 * There is no downlink command to set to Sleep mode.
1331
1332
1333
1334 == 4.7 Set system time ==
1335
1336
1337 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1338
1339
1340 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1341
1342 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1343
1344
1345 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1346
1347 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1348
1349
1350
1351 == 4.8 Set Time Sync Mode ==
1352
1353
1354 (((
1355 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1356 )))
1357
1358 (((
1359 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.
1360
1361
1362 )))
1363
1364 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1365
1366 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1367
1368
1369 (% style="color:#4f81bd" %)**Downlink Command:**
1370
1371 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1372 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1373
1374
1375
1376 == 4.9 Set Time Sync Interval ==
1377
1378
1379 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1380
1381
1382 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1383
1384 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1385
1386
1387 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1388
1389 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1390
1391
1392
1393 == 4.10 Print data entries base on page. ==
1394
1395
1396 Feature: Print the sector data from start page to stop page (max is 416 pages).
1397
1398
1399 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1400
1401 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1402
1403
1404 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1405
1406 No downlink commands for feature
1407
1408
1409
1410 == 4.11 Print last few data entries. ==
1411
1412
1413 Feature: Print the last few data entries
1414
1415
1416 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1417
1418 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1419
1420
1421 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1422
1423 No downlink commands for feature
1424
1425
1426
1427 == 4.12 Clear Flash Record ==
1428
1429
1430 Feature: Clear flash storage for data log feature.
1431
1432
1433 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1434
1435 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1436
1437
1438 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1439
1440 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1441
1442
1443
1444 == 4.13 Auto Send None-ACK messages ==
1445
1446
1447 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1448 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.
1449
1450
1451 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1452
1453 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1454 The default factory setting is 0
1455
1456 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1457 (% _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**
1458 (% _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
1459
1460 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1461
1462 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1463
1464
1465
1466 = 5. Battery & How to replace =
1467
1468 == 5.1 Battery Type ==
1469
1470
1471 (((
1472 (((
1473 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.
1474 )))
1475 )))
1476
1477 (((
1478
1479 )))
1480
1481 (((
1482 (((
1483 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1484 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1485 )))
1486 )))
1487
1488 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1489
1490
1491
1492 == 5.2 Replace Battery ==
1493
1494
1495 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.
1496
1497 [[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"]]
1498
1499
1500 == 5.3 Battery Life Analyze ==
1501
1502
1503 (((
1504 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:
1505 [[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]]
1506 )))
1507
1508 (((
1509
1510 )))
1511
1512 (((
1513 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]]
1514 )))
1515
1516
1517
1518 = 6. FAQ =
1519
1520
1521 == 6.1 How to use AT Command? ==
1522
1523
1524 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.
1525
1526 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1527
1528
1529 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1530
1531 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1532 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1533 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1534 * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1535
1536 (((
1537 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.
1538 )))
1539
1540
1541 Input password and ATZ to activate LHT65N,As shown below:
1542
1543 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1544
1545
1546 (% _msthash="506066" _msttexthash="544869" %)
1547 AT Command List is as below:
1548
1549 (% _msthash="506067" _msttexthash="361920" %)
1550 AT+<CMD>? :  Help on <CMD>
1551
1552 (% _msthash="506068" _msttexthash="243061" %)
1553 AT+<CMD> :  Run <CMD>
1554
1555 (% _msthash="506069" _msttexthash="704197" %)
1556 AT+<CMD>=<value> :  Set the value
1557
1558 (% _msthash="506070" _msttexthash="455676" %)
1559 AT+<CMD>=? :  Get the value
1560
1561 (% _msthash="506071" _msttexthash="670553" %)
1562 AT+DEBUG:  Set more info output
1563
1564 (% _msthash="506072" _msttexthash="485888" %)
1565 ATZ:  Trig a reset of the MCU
1566
1567 (% _msthash="506073" _msttexthash="2068872" %)
1568 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1569
1570 (% _msthash="506074" _msttexthash="689169" %)
1571 AT+DEUI:  Get or Set the Device EUI
1572
1573 (% _msthash="506075" _msttexthash="960414" %)
1574 AT+DADDR:  Get or Set the Device Address
1575
1576 (% _msthash="506076" _msttexthash="1079897" %)
1577 AT+APPKEY:  Get or Set the Application Key
1578
1579 (% _msthash="506077" _msttexthash="1326143" %)
1580 AT+NWKSKEY:  Get or Set the Network Session Key
1581
1582 (% _msthash="506078" _msttexthash="1573000" %)
1583 AT+APPSKEY:  Get or Set the Application Session Key
1584
1585 (% _msthash="506079" _msttexthash="1041729" %)
1586 AT+APPEUI:  Get or Set the Application EUI
1587
1588 (% _msthash="506080" _msttexthash="2104206" %)
1589 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1590
1591 (% _msthash="506081" _msttexthash="3369288" %)
1592 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1593
1594 (% _msthash="506082" _msttexthash="1894529" %)
1595 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1596
1597 (% _msthash="506083" _msttexthash="3864172" %)
1598 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1599
1600 (% _msthash="506084" _msttexthash="1712204" %)
1601 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1602
1603 (% _msthash="506085" _msttexthash="1281202" %)
1604 AT+RX2FQ:  Get or Set the Rx2 window frequency
1605
1606 (% _msthash="506086" _msttexthash="2796781" %)
1607 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1608
1609 (% _msthash="506087" _msttexthash="3285165" %)
1610 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1611
1612 (% _msthash="506088" _msttexthash="3286179" %)
1613 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1614
1615 (% _msthash="506089" _msttexthash="4703803" %)
1616 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1617
1618 (% _msthash="506090" _msttexthash="4704999" %)
1619 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1620
1621 (% _msthash="506091" _msttexthash="1528683" %)
1622 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1623
1624 (% _msthash="506092" _msttexthash="757185" %)
1625 AT+NWKID:  Get or Set the Network ID
1626
1627 (% _msthash="506093" _msttexthash="1156597" %)
1628 AT+FCU:  Get or Set the Frame Counter Uplink
1629
1630 (% _msthash="506094" _msttexthash="1273987" %)
1631 AT+FCD:  Get or Set the Frame Counter Downlink
1632
1633 (% _msthash="506095" _msttexthash="859222" %)
1634 AT+CLASS:  Get or Set the Device Class
1635
1636 (% _msthash="506096" _msttexthash="384852" %)
1637 AT+JOIN:  Join network
1638
1639 (% _msthash="506097" _msttexthash="548626" %)
1640 AT+NJS:  Get the join status
1641
1642 (% _msthash="506098" _msttexthash="2546206" %)
1643 AT+SENDB:  Send hexadecimal data along with the application port
1644
1645 (% _msthash="506099" _msttexthash="1932307" %)
1646 AT+SEND:  Send text data along with the application port
1647
1648 (% _msthash="506100" _msttexthash="3560557" %)
1649 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1650
1651 (% _msthash="506101" _msttexthash="1429701" %)
1652 AT+RECV:  Print last received data in raw format
1653
1654 (% _msthash="506102" _msttexthash="1735981" %)
1655 AT+VER:  Get current image version and Frequency Band
1656
1657 (% _msthash="506103" _msttexthash="1189474" %)
1658 AT+CFM:  Get or Set the confirmation mode (0-1)
1659
1660 (% _msthash="506104" _msttexthash="1718210" %)
1661 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1662
1663 (% _msthash="506105" _msttexthash="1339403" %)
1664 AT+SNR:  Get the SNR of the last received packet
1665
1666 (% _msthash="506106" _msttexthash="1452009" %)
1667 AT+RSSI:  Get the RSSI of the last received packet
1668
1669 (% _msthash="506107" _msttexthash="2768142" %)
1670 AT+TDC:  Get or set the application data transmission interval in ms
1671
1672 (% _msthash="506108" _msttexthash="1083914" %)
1673 AT+PORT:  Get or set the application port
1674
1675 (% _msthash="506109" _msttexthash="622440" %)
1676 AT+DISAT:  Disable AT commands
1677
1678 (% _msthash="506110" _msttexthash="868361" %)
1679 AT+PWORD: Set password, max 9 digits
1680
1681 (% _msthash="506111" _msttexthash="2210299" %)
1682 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1683
1684 (% _msthash="506112" _msttexthash="2113462" %)
1685 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1686
1687 (% _msthash="506113" _msttexthash="2087423" %)
1688 AT+PDTA:  Print the sector data from start page to stop page
1689
1690 (% _msthash="506114" _msttexthash="1063127" %)
1691 AT+PLDTA:  Print the last few sets of data
1692
1693 (% _msthash="506115" _msttexthash="1999426" %)
1694 AT+CLRDTA:  Clear the storage, record position back to 1st
1695
1696 (% _msthash="506116" _msttexthash="442130" %)
1697 AT+SLEEP:  Set sleep mode
1698
1699 (% _msthash="506117" _msttexthash="1080222" %)
1700 AT+EXT:  Get or Set external sensor model
1701
1702 (% _msthash="506118" _msttexthash="1309490" %)
1703 AT+BAT:  Get the current battery voltage in mV
1704
1705 (% _msthash="506119" _msttexthash="813891" %)
1706 AT+CFG:  Print all configurations
1707
1708 (% _msthash="506120" _msttexthash="551707" %)
1709 AT+WMOD:  Get or Set Work Mode
1710
1711 (% _msthash="506121" _msttexthash="2631499" %)
1712 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1713
1714 (% _msthash="506122" _msttexthash="3907150" %)
1715 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1716
1717 (% _msthash="506123" _msttexthash="854620" %)
1718 AT+SETCNT:  Set the count at present
1719
1720 (% _msthash="506124" _msttexthash="2554877" %)
1721 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1722
1723 (% _msthash="506125" _msttexthash="771849" %)
1724 AT+RPL:  Get or set response level
1725
1726 (% _msthash="506126" _msttexthash="1484314" %)
1727 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1728
1729 (% _msthash="506127" _msttexthash="741728" %)
1730 AT+LEAPSEC:  Get or Set Leap Second
1731
1732 (% _msthash="506128" _msttexthash="1694017" %)
1733 AT+SYNCMOD:  Get or Set time synchronization method
1734
1735 (% _msthash="506129" _msttexthash="2235948" %)
1736 AT+SYNCTDC:  Get or set time synchronization interval in day
1737
1738 (% _msthash="506130" _msttexthash="425542" %)
1739 AT+PID:  Get or set the PID
1740
1741
1742
1743 == 6.2 Where to use AT commands and Downlink commands ==
1744
1745
1746 **AT commands：**
1747
1748 [[image:image-20220620153708-1.png||height="603" width="723"]]
1749
1750
1751 **Downlink commands:**
1752
1753
1754
1755 (% style="color:blue" %)**TTN:**
1756
1757 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1758
1759
1760
1761 (% style="color:blue" %)**Helium：**
1762
1763 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1764
1765
1766
1767 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1768
1769
1770 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1771
1772
1773 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1774
1775
1776
1777 (% style="color:blue" %)**Aws:**
1778
1779 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1780
1781
1782
1783 == 6.3 How to change the uplink interval？ ==
1784
1785
1786 [[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"]]
1787
1788
1789
1790 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1791
1792
1793 [[image:image-20220615153355-1.png]]
1794
1795 [[image:1655802313617-381.png]]
1796
1797
1798 (((
1799 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.
1800 )))
1801
1802
1803 Input password and ATZ to activate LHT65N,As shown below:
1804
1805 [[image:image-20220615154519-3.png||height="672" width="807"]]
1806
1807
1808
1809 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1810
1811
1812 [[image:image-20220615153355-1.png]]
1813
1814
1815 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1816
1817 [[image:image-20220615170542-5.png]]
1818
1819
1820 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1821
1822 (% _msthash="506146" _msttexthash="52173160" %)
1823 First connect the four lines；(% style="display:none" %)
1824
1825 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1826
1827
1828 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1829
1830 [[image:image-20220621170938-2.png]]
1831
1832
1833 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1834
1835 [[image:image-20220615171334-6.png]]
1836
1837
1838 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1839
1840
1841 When this interface appears, it indicates that the download has been completed.
1842
1843 [[image:image-20220620160723-8.png]]
1844
1845
1846 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1847
1848
1849
1850 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1851
1852
1853 [[image:image-20220623110706-1.png]]
1854
1855
1856 [[image:image-20220623112117-4.png||height="459" width="343"]]
1857
1858
1859 (((
1860 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.
1861 )))
1862
1863
1864 Input password and ATZ to activate LHT65N,As shown below:
1865
1866 [[image:image-20220615154519-3.png||height="672" width="807"]]
1867
1868
1869
1870 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1871
1872
1873 [[image:image-20220623110706-1.png]]
1874
1875
1876 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1877
1878 [[image:image-20220615170542-5.png]]
1879
1880
1881 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1882
1883 (% _msthash="506146" _msttexthash="52173160" %)
1884 First connect the four lines；
1885
1886 (% _msthash="506146" _msttexthash="52173160" %)
1887 [[image:image-20220623113959-5.png||height="528" width="397"]]
1888
1889 (% _msthash="506146" _msttexthash="52173160" %)
1890 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1891
1892
1893 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1894
1895 [[image:image-20220615171334-6.png]]
1896
1897
1898 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1899
1900
1901 When this interface appears, it indicates that the download has been completed.
1902
1903 [[image:image-20220620160723-8.png]]
1904
1905
1906 Finally,restart reset device again
1907
1908
1909
1910 = 7. Order Info =
1911
1912
1913 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1914
1915 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1916
1917 (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1918
1919 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1920
1921 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1922
1923 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1924
1925 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1926
1927 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1928
1929 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1930
1931 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1932
1933 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1934
1935 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1936
1937
1938 = 8. Packing Info =
1939
1940
1941 **Package Includes**:
1942
1943 * LHT65N Temperature & Humidity Sensor x 1
1944 * Optional external sensor
1945
1946 **Dimension and weight**:
1947
1948 * Device Size:  10 x 10 x 3.5 cm
1949 * Device Weight: 120.5g
1950
1951
1952 = 9. Reference material =
1953
1954
1955 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1956
1957
1958 = 10. FCC Warning =
1959
1960
1961 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1962
1963 (1) This device may not cause harmful interference；
1964
1965 (2) this device must accept any interference received, including interference that may cause undesired operation.
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