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Version 185.2 by Xiaoling on 2022/06/29 13:55
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9 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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11 {{toc/}}
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15
16
17 = 1. Introduction =
18
19 == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20
21
22 (((
23 The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 )))
25
26 (((
27 The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
28 )))
29
30 (((
31 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 )))
33
34 (((
35 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 )))
37
38 (((
39 LHT65N supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
40 )))
41
42 (((
43 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 )))
45
46
47 == 1.2 Features ==
48
49 * Wall mountable
50 * LoRaWAN v1.0.3 Class A protocol
51 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
52 * AT Commands to change parameters
53 * Remote configure parameters via LoRaWAN Downlink
54 * Firmware upgradeable via program port
55 * Built-in 2400mAh battery for up to 10 years of use.
56 * Built-in Temperature & Humidity sensor
57 * Optional External Sensors
58 * Tri-color LED to indicate working status
59 * Datalog feature
60
61 == 1.3 Specification ==
62
63
64 **Built-in Temperature Sensor:**
65
66 * Resolution: 0.01 °C
67 * Accuracy Tolerance : Typ ±0.3 °C
68 * Long Term Drift: < 0.02 °C/yr
69 * Operating Range: -40 ~~ 85 °C
70
71 **Built-in Humidity Sensor:**
72
73 * Resolution: 0.04 %RH
74 * Accuracy Tolerance : Typ ±3 %RH
75 * Long Term Drift: < 0.02 °C/yr
76 * Operating Range: 0 ~~ 96 %RH
77
78 **External Temperature Sensor:**
79
80 * Resolution: 0.0625 °C
81 * ±0.5°C accuracy from -10°C to +85°C
82 * ±2°C accuracy from -55°C to +125°C
83 * Operating Range: -55 °C ~~ 125 °C
84
85 = 2. Connect LHT65N to IoT Server =
86
87 == 2.1 How does LHT65N work? ==
88
89 (((
90 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.
91 )))
92
93 (((
94 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.
95 )))
96
97
98 == 2.2 How to Activate LHT65N? ==
99
100 (((
101 The LHT65N has two working modes:
102 )))
103
104 * (((
105 (% 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.
106 )))
107 * (((
108 (% 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. 
109 )))
110
111 (((
112 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
113 )))
114
115
116 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
117
118 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
119
120
121
122 == 2.3 Example to join LoRaWAN network ==
123
124 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
125 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.
126
127 (% _mstvisible="1" class="wikigeneratedid" %)
128 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
129
130
131 (((
132 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:
133 )))
134
135
136
137 === 2.3.1 Step 1: Create Device n TTN ===
138
139 (((
140 Create a device in TTN V3 with the OTAA keys from LHT65N.
141 )))
142
143 (((
144 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
145 )))
146
147 [[image:image-20220617150003-1.jpeg]]
148
149 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
150
151 Add APP EUI in the application.
152
153
154 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
155
156
157 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
158
159
160 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
161
162
163 Note: LHT65N use same payload as LHT65.
164
165
166 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
167
168
169 Input APP EUI,  APP KEY and DEV EUI:
170
171
172 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
173
174
175
176
177 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
178
179 (((
180 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.
181 )))
182
183 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
184
185
186
187
188 == 2.4 Uplink Payload ==
189
190 (((
191 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.
192 )))
193
194 (((
195 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
196 )))
197
198 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
199 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
200 (((
201 (% _mstvisible="6" %)
202 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
203 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
204 (((
205 (% _mstvisible="6" %)
206 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
207 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
208 (((
209 (% _mstvisible="6" %)
210 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
211 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
212 (((
213 (% _mstvisible="6" %)
214 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
215 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
216 (((
217 (% _mstvisible="6" %)
218 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
219 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
220 (((
221 (% _mstvisible="6" %)
222 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
223 )))
224 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
225 (((
226 (% _mstvisible="6" %)
227 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
228 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
229 (((
230 (% _mstvisible="6" %)
231 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
232 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
233 (((
234 (% _mstvisible="6" %)
235 (((
236 (% _mstvisible="7" %)
237 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
238 )))
239 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
240 (((
241 (% _mstvisible="6" %)
242 (((
243 (% _mstvisible="7" %)
244 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
245 )))
246
247 (% _mstvisible="6" %)
248 (((
249 (% _mstvisible="7" %)
250 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
251 )))
252 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
253 (((
254 (% _mstvisible="6" %)
255 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
256 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
257 (((
258 (% _mstvisible="6" %)
259 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
260 )))
261
262 * The First 6 bytes: has fix meanings for every LHT65N.
263 * The 7th byte (EXT #): defines the external sensor model.
264 * 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.)
265
266 === 2.4.1 Decoder in TTN V3 ===
267
268 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.
269
270 Below is the position to put the decoder and LHT65N decoder can be download from here:
271
272
273 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
274
275
276 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
277
278
279
280
281 === 2.4.2 BAT-Battery Info ===
282
283 These two bytes of BAT include the battery state and the actually voltage
284
285 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
286
287
288 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
289
290
291 Check the battery voltage for LHT65N.
292
293 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
294 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
295
296 === 2.4.3 Built-in Temperature ===
297
298 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
299
300 * Temperature:  0x0ABB/100=27.47℃
301
302 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
303
304 * Temperature:  (0xF5C6-65536)/100=-26.18℃
305
306 === 2.4.4 Built-in Humidity ===
307
308 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
309
310 * Humidity:    0x025C/10=60.4%
311
312 === 2.4.5 Ext # ===
313
314 Bytes for External Sensor:
315
316 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
317
318
319
320 === 2.4.6 Ext value ===
321
322 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
323
324
325 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
326
327
328 * DS18B20 temp=0x0ADD/100=27.81℃
329
330 The last 2 bytes of data are meaningless
331
332 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
333
334
335 * External temperature= (0xF54F-65536)/100=-27.37℃
336
337 The last 2 bytes of data are meaningless
338
339 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
340
341
342
343 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
344
345 (((
346 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:
347 )))
348
349 (((
350
351 )))
352
353 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
354 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
355 (((
356 (% _mstvisible="6" %)
357 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
358 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
359 (((
360 (% _mstvisible="6" %)
361 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
362 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
363 (((
364 (% _mstvisible="6" %)
365 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
366 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
367 (((
368 (% _mstvisible="6" %)
369 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
370 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
371 (((
372 (% _mstvisible="6" %)
373 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
374 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
375 (((
376 (% _mstvisible="6" %)
377 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
378 )))
379 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
380 (((
381 (% _mstvisible="6" %)
382 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
383 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
384 (((
385 (% _mstvisible="6" %)
386 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
387 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
388 (((
389 (% _mstvisible="6" %)
390 (((
391 (% _mstvisible="7" %)
392 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
393 )))
394
395 (% _mstvisible="6" %)
396 (((
397 (% _mstvisible="7" %)
398 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
399 )))
400 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
401 (((
402 (% _mstvisible="6" %)
403 (((
404 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
405 BAT Status &
406 )))
407
408 (% _mstvisible="6" %)
409 (((
410 (% _mstvisible="7" %)
411 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
412 )))
413 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
414 (((
415 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
416 Status & Ext
417 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
418 (((
419 (% _mstvisible="6" %)
420 (((
421 (% _mstvisible="7" %)
422 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
423 )))
424 )))
425
426 (% _mstvisible="1" %)
427 * (% _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**
428
429 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
430 (% _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]
431 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
432 (((
433 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
434 BAT Status
435
436 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
437 00(b): Ultra Low ( BAT <= 2.50v)
438
439 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
440 01(b): Low  (2.50v <=BAT <= 2.55v)
441
442 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
443 10(b): OK   (2.55v <= BAT <=2.65v)
444
445 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
446 11(b): Good   (BAT >= 2.65v)
447 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
448 (((
449 (% _mstvisible="6" %)
450 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
451
452 (% _mstvisible="6" %)
453
454 )))
455
456 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
457
458 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
459
460 * Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
461 * 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.
462 * 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)
463
464 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
465
466 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
467
468 be used to power the external ADC sensor; user can control the power on time for this
469
470 sensor by setting:
471
472 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
473
474 For example:
475
476 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
477
478
479 Or use **downlink command A2** to set the same.
480
481 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
482
483 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.
484
485 [[image:image-20220628150112-1.png||height="241" width="285"]]
486
487
488 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
489
490 [[image:image-20220628150714-4.png]]
491
492
493 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.
494
495 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
496
497 [[image:image-20220628151005-5.png]]
498
499
500 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
501
502 [[image:image-20220628151056-6.png]]
503
504
505 3) Within range
506
507 [[image:image-20220628151143-7.png]]
508
509
510 == 2.5 Show data on Datacake ==
511
512 (((
513 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:
514 )))
515
516 (((
517
518 )))
519
520 (((
521 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
522 )))
523
524 (((
525 (% 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.
526 )))
527
528 (((
529
530 )))
531
532 (((
533 Add Datacake:
534 )))
535
536
537 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
538
539
540
541 Select default key as Access Key:
542
543
544 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
545
546
547 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
548
549
550 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
551
552
553 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
554
555
556
557 == 2.6 Datalog Feature ==
558
559 (((
560 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.
561 )))
562
563
564
565 === 2.6.1 Ways to get datalog via LoRaWAN ===
566
567 There are two methods:
568
569 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
570 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 network recover.
571
572 === 2.6.2 Unix TimeStamp ===
573
574
575 LHT65N uses Unix TimeStamp format based on
576
577
578 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
579
580
581
582 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
583
584 Below is the converter example
585
586 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
587
588 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
589
590
591
592 === 2.6.3 Set Device Time ===
593
594 (((
595 There are two ways to set device's time:
596 )))
597
598 (((
599 **~1. Through LoRaWAN MAC Command (Default settings)**
600 )))
601
602 (((
603 User need to set SYNCMOD=1 to enable sync time via MAC command.
604 )))
605
606 (((
607 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).
608 )))
609
610 (((
611 (% 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.
612 )))
613
614 (((
615
616 )))
617
618 (((
619 **2. Manually Set Time**
620 )))
621
622 (((
623 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
624 )))
625
626
627
628 === 2.6.4 Poll sensor value ===
629
630 User can poll sensor value based on timestamps from the server. Below is the downlink command.
631
632 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
633
634
635 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.
636
637 For example, downlink command **31 5FC5F350 5FC6 0160 05**
638
639 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
640
641 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
642
643
644
645 === 2.6.5 Datalog Uplink payload ===
646
647 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
648 The Datalog poll reply uplink will use below payload format.
649
650 (% _mstvisible="1" %)
651 (((
652 (% _mstvisible="2" %)
653 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
654 )))
655
656 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
657 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
658 (((
659 (% _mstvisible="6" %)
660 (((
661 (% _mstvisible="7" %)
662 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
663 )))
664 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
665 (((
666 (% _mstvisible="6" %)
667 (((
668 (% _mstvisible="7" %)
669 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
670 )))
671 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
672 (((
673 (% _mstvisible="6" %)
674 (((
675 (% _mstvisible="7" %)
676 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
677 )))
678 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
679 (((
680 (% _mstvisible="6" %)
681 (((
682 (% _mstvisible="7" %)
683 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
684 )))
685 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
686 (((
687 (% _mstvisible="6" %)
688 (((
689 (% _mstvisible="7" %)
690 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
691 )))
692 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
693 (((
694 (% _mstvisible="6" %)
695 (((
696 (% _mstvisible="7" %)
697 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
698 )))
699 )))
700 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
701 (((
702 (% _mstvisible="6" %)
703 (((
704 (% _mstvisible="7" %)
705 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
706 )))
707 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
708 (((
709 (% _mstvisible="6" %)
710 (((
711 (% _mstvisible="7" %)
712 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
713 )))
714 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
715 (((
716 (% _mstvisible="6" %)
717 (((
718 (% _mstvisible="7" %)
719 (((
720 (% _mstvisible="8" %)
721 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
722 )))
723 )))
724
725 (% _mstvisible="6" %)
726 (((
727 (% _mstvisible="7" %)
728 (((
729 (% _mstvisible="8" %)
730 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
731 )))
732 )))
733 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
734 (((
735 (% _mstvisible="6" %)
736 (((
737 (% _mstvisible="7" %)
738 (((
739 (% _mstvisible="8" %)
740 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
741 )))
742 )))
743
744 (% _mstvisible="6" %)
745 (((
746 (% _mstvisible="7" %)
747 (((
748 (% _mstvisible="8" %)
749 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
750 )))
751 )))
752 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
753 (((
754 (% _mstvisible="6" %)
755 (((
756 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
757 Poll message flag & Ext
758 )))
759 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
760 (((
761 (% _mstvisible="6" %)
762 (((
763 (% _mstvisible="7" %)
764 (((
765 (% _mstvisible="8" %)
766 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
767 )))
768 )))
769
770 (% _mstvisible="6" %)
771 (((
772 (% _mstvisible="7" %)
773 (((
774 (% _mstvisible="8" %)
775
776 )))
777 )))
778 )))
779
780 (% _mstvisible="1" %)
781 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
782
783 (% _mstvisible="1" %)
784 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
785
786 (% _mstvisible="1" %)
787 (((
788 (% _mstvisible="2" %)
789 (((
790 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
791 (((
792 Poll Message Flag: 1: This message is a poll message reply.
793 )))
794 )))
795 )))
796
797 (% _mstvisible="1" %)
798 * (% _mstvisible="3" %)
799 (((
800 (% _mstvisible="4" %)
801 (((
802 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
803 (((
804 Poll Message Flag is set to 1.
805 )))
806 )))
807 )))
808 * (% _mstvisible="3" %)
809 (((
810 (% _mstvisible="4" %)
811 (((
812 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
813 (((
814 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
815 )))
816 )))
817 )))
818
819 (% _mstvisible="1" %)
820 (((
821 (% _mstvisible="2" %)
822 (((
823 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
824 (((
825
826 )))
827
828 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
829 (((
830 For example, in US915 band, the max payload for different DR is:
831 )))
832 )))
833 )))
834
835 (% _mstvisible="1" %)
836 (((
837 (% _mstvisible="2" %)
838 (((
839 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
840 (((
841 a) DR0: max is 11 bytes so one entry of data
842 )))
843 )))
844 )))
845
846 (% _mstvisible="1" %)
847 (((
848 (% _mstvisible="2" %)
849 (((
850 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
851 (((
852 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
853 )))
854 )))
855 )))
856
857 (% _mstvisible="1" %)
858 (((
859 (% _mstvisible="2" %)
860 (((
861 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
862 (((
863 c) DR2: total payload includes 11 entries of data
864 )))
865 )))
866 )))
867
868 (% _mstvisible="1" %)
869 (((
870 (% _mstvisible="2" %)
871 (((
872 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
873 (((
874 d) DR3: total payload includes 22 entries of data.
875 )))
876 )))
877 )))
878
879 (% _mstvisible="1" %)
880 (((
881 (% _mstvisible="2" %)
882 (((
883 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
884 (((
885 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
886 )))
887 )))
888 )))
889
890
891 (% _mstvisible="1" style="text-align: left;" %)
892 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
893
894 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
895 If LHT65N has below data inside Flash:
896
897 (% _mstvisible="1" %)
898 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
899
900 (% _mstvisible="1" %)
901 (((
902 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
903 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
904 )))
905
906 (% _mstvisible="1" %)
907 (((
908 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
909 Where : Start time: 60065F97 = time 21/1/19 04:27:03
910 )))
911
912 (% _mstvisible="1" %)
913 (((
914 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
915 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
916 )))
917
918 (% _mstvisible="1" %)
919 (((
920 (% _mstvisible="2" %)
921
922 )))
923
924 (% _mstvisible="1" %)
925 (((
926 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
927 LHT65N will uplink this payload.
928 )))
929
930 (% _mstvisible="1" %)
931 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
932
933 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
934 (((
935 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
936 )))
937
938 (% _msthash="315237" _msttexthash="1385839" %)
939 (((
940 Where the first 11 bytes is for the first entry:
941 )))
942
943 (% _msthash="315238" _msttexthash="274846" %)
944 (((
945 7FFF089801464160065F97
946 )))
947
948 (% _msthash="315239" _msttexthash="617435" %)
949 (((
950 Ext sensor data=0x7FFF/100=327.67
951 )))
952
953 (% _msthash="315240" _msttexthash="270543" %)
954 (((
955 Temp=0x0898/100=22.00
956 )))
957
958 (% _msthash="315241" _msttexthash="211783" %)
959 (((
960 Hum=0x0146/10=32.6
961 )))
962
963 (% _msthash="315242" _msttexthash="1569776" %)
964 (((
965 poll message flag & Ext=0x41,means reply data,Ext=1
966 )))
967
968 (% _msthash="315243" _msttexthash="1120509" %)
969 (((
970 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
971 )))
972
973
974
975 == 2.7 Alarm Mode ==
976
977 (((
978 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.
979 )))
980
981 (((
982 (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
983 )))
984
985 (((
986 **AT COMMAND FOR ALARM MODE:**
987 )))
988
989 (% _mstvisible="1" class="box infomessage" %)
990 (((
991 (((
992 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
993 )))
994
995 (((
996 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
997 )))
998
999 (((
1000 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1001 )))
1002
1003 (((
1004 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1005 )))
1006
1007 (((
1008 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1009 )))
1010 )))
1011
1012
1013
1014 == 2.8 LED Indicator ==
1015
1016 The LHT65 has a triple color LED which for easy showing different stage .
1017
1018 While user press ACT button, the LED will work as per LED status with ACT button.
1019
1020 In a normal working state:
1021
1022 * For each uplink, the BLUE LED or RED LED will blink once.
1023 BLUE LED when external sensor is connected.
1024 * RED LED when external sensor is not connected
1025 * For each success downlink, the PURPLE LED will blink once
1026
1027 == 2.9 installation ==
1028
1029 (% _mstvisible="1" %)
1030 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1031
1032
1033
1034 = 3. Sensors and Accessories =
1035
1036 == 3.1 E2 Extension Cable ==
1037
1038 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1039
1040 **1m long breakout cable for LHT65N. Features:**
1041
1042 * (((
1043 Use for AT Command， works for both LHT52/LHT65N
1044 )))
1045 * (((
1046 Update firmware for LHT65N, works for both LHT52/LHT65N
1047 )))
1048 * (((
1049 Supports ADC mode to monitor external ADC
1050 )))
1051 * (((
1052 Supports Interrupt mode
1053 )))
1054 * (((
1055 Exposed All pins from the LHT65N Type-C connector.
1056 )))
1057
1058 [[image:image-20220619092421-3.png||height="371" width="529"]]
1059
1060
1061
1062
1063 == 3.2 E3 Temperature Probe ==
1064
1065
1066 [[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"]]
1067
1068
1069 Temperature sensor with 2 meters cable long
1070
1071 * Resolution: 0.0625 °C
1072 * ±0.5°C accuracy from -10°C to +85°C
1073 * ±2°C accuracy from -55°C to +125°C
1074 * Operating Range: -40 ~~ 125 °C
1075 * Working voltage 2.35v ~~ 5v
1076
1077 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1078
1079 (((
1080 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1081 )))
1082
1083 * (((
1084 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1085 )))
1086
1087 * (((
1088 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1089 )))
1090
1091 (((
1092 There are two kinds of commands to configure LHT65N, they are:
1093 )))
1094
1095 * (((
1096 (% style="color:#4f81bd" %)**General Commands**.
1097 )))
1098
1099 (((
1100 These commands are to configure:
1101 )))
1102
1103 1. (((
1104 General system settings like: uplink interval.
1105 )))
1106 1. (((
1107 LoRaWAN protocol & radio-related commands.
1108 )))
1109
1110 (((
1111 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]]
1112 )))
1113
1114 * (((
1115 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1116 )))
1117
1118 (((
1119 These commands are only valid for LHT65N, as below:
1120 )))
1121
1122
1123 == 4.1 Set Transmit Interval Time ==
1124
1125 Feature: Change LoRaWAN End Node Transmit Interval.
1126
1127 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1128
1129 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1130
1131
1132 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1133
1134 Format: Command Code (0x01) followed by 3 bytes time value.
1135
1136 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1137
1138 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1139
1140 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1141
1142 == 4.2 Set External Sensor Mode ==
1143
1144 Feature: Change External Sensor Mode.
1145
1146 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1147
1148 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1149
1150
1151 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1152
1153 Total bytes: 2 ~~ 5 bytes
1154
1155 **Example:**
1156
1157 * 0xA201: Set external sensor type to E1
1158
1159 * 0xA209: Same as AT+EXT=9
1160
1161 * 0xA20702003c: Same as AT+SETCNT=60
1162
1163 == 4.3 Enable/Disable uplink Temperature probe ID ==
1164
1165 (((
1166 Feature: If PID is enabled, device will send the temperature probe ID on:
1167 )))
1168
1169 * (((
1170 First Packet after OTAA Join
1171 )))
1172 * (((
1173 Every 24 hours since the first packet.
1174 )))
1175
1176 (((
1177 PID is default set to disable (0)
1178 )))
1179
1180 (% style="color:#4f81bd" %)**AT Command:**
1181
1182 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1183
1184
1185 (% style="color:#4f81bd" %)**Downlink Command:**
1186
1187 * **0xA800**  **~-~->** AT+PID=0
1188 * **0xA801**     **~-~->** AT+PID=1
1189
1190 == 4.4 Set Password ==
1191
1192 Feature: Set device password, max 9 digits
1193
1194 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1195
1196 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1197
1198
1199 (% style="color:#4f81bd" %)**Downlink Command:**
1200
1201 No downlink command for this feature.
1202
1203
1204
1205 == 4.5 Quit AT Command ==
1206
1207 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1208
1209 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1210
1211 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1212
1213
1214 (% style="color:#4f81bd" %)**Downlink Command:**
1215
1216 No downlink command for this feature.
1217
1218
1219
1220 == 4.6 Set to sleep mode ==
1221
1222 Feature: Set device to sleep mode
1223
1224 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1225 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1226
1227 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1228
1229 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1230
1231
1232 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1233
1234 * There is no downlink command to set to Sleep mode.
1235
1236 == 4.7 Set system time ==
1237
1238 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1239
1240 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1241
1242 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1243
1244
1245 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1246
1247 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1248
1249
1250
1251 == 4.8 Set Time Sync Mode ==
1252
1253 (((
1254 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1255 )))
1256
1257 (((
1258 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.
1259 )))
1260
1261 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1262
1263 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1264
1265
1266 (% style="color:#4f81bd" %)**Downlink Command:**
1267
1268 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1269 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1270
1271
1272
1273 == 4.9 Set Time Sync Interval ==
1274
1275 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1276
1277 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1278
1279 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1280
1281
1282 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1283
1284 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1285
1286
1287
1288 == 4.10 Print data entries base on page. ==
1289
1290 Feature: Print the sector data from start page to stop page (max is 416 pages).
1291
1292 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1293
1294 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1295
1296
1297 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1298
1299 No downlink commands for feature
1300
1301
1302
1303 == 4.11 Print last few data entries. ==
1304
1305 Feature: Print the last few data entries
1306
1307 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1308
1309 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1310
1311
1312 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1313
1314 No downlink commands for feature
1315
1316
1317
1318 == 4.12 Clear Flash Record ==
1319
1320 Feature: Clear flash storage for data log feature.
1321
1322
1323 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1324
1325 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1326
1327
1328 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1329
1330 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1331
1332 == 4.13 Auto Send None-ACK messages ==
1333
1334 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1335 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.
1336
1337 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1338
1339 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1340 The default factory setting is 0
1341
1342 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1343 (% _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**
1344 (% _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
1345
1346 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1347
1348 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1349
1350 = 5. Battery & How to replace =
1351
1352 == 5.1 Battery Type ==
1353
1354 (((
1355 (((
1356 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.
1357 )))
1358 )))
1359
1360 (((
1361
1362 )))
1363
1364 (((
1365 (((
1366 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1367 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1368 )))
1369 )))
1370
1371 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1372
1373
1374 == 5.2 Replace Battery ==
1375
1376 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.
1377
1378 [[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"]]
1379
1380
1381 == 5.3 Battery Life Analyze ==
1382
1383 (((
1384 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:
1385 [[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]]
1386 )))
1387
1388 (((
1389
1390 )))
1391
1392 (((
1393 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]]
1394 )))
1395
1396
1397
1398 = 6. FAQ =
1399
1400 == 6.1 How to use AT Command? ==
1401
1402 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.
1403
1404 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1405
1406
1407 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1408
1409 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1410 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1411 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1412 * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1413
1414 (((
1415 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.
1416 )))
1417
1418
1419 Input password and ATZ to activate LHT65N,As shown below:
1420
1421 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1422
1423
1424 (% _msthash="506066" _msttexthash="544869" %)
1425 AT Command List is as below:
1426
1427 (% _msthash="506067" _msttexthash="361920" %)
1428 AT+<CMD>? :  Help on <CMD>
1429
1430 (% _msthash="506068" _msttexthash="243061" %)
1431 AT+<CMD> :  Run <CMD>
1432
1433 (% _msthash="506069" _msttexthash="704197" %)
1434 AT+<CMD>=<value> :  Set the value
1435
1436 (% _msthash="506070" _msttexthash="455676" %)
1437 AT+<CMD>=? :  Get the value
1438
1439 (% _msthash="506071" _msttexthash="670553" %)
1440 AT+DEBUG:  Set more info output
1441
1442 (% _msthash="506072" _msttexthash="485888" %)
1443 ATZ:  Trig a reset of the MCU
1444
1445 (% _msthash="506073" _msttexthash="2068872" %)
1446 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1447
1448 (% _msthash="506074" _msttexthash="689169" %)
1449 AT+DEUI:  Get or Set the Device EUI
1450
1451 (% _msthash="506075" _msttexthash="960414" %)
1452 AT+DADDR:  Get or Set the Device Address
1453
1454 (% _msthash="506076" _msttexthash="1079897" %)
1455 AT+APPKEY:  Get or Set the Application Key
1456
1457 (% _msthash="506077" _msttexthash="1326143" %)
1458 AT+NWKSKEY:  Get or Set the Network Session Key
1459
1460 (% _msthash="506078" _msttexthash="1573000" %)
1461 AT+APPSKEY:  Get or Set the Application Session Key
1462
1463 (% _msthash="506079" _msttexthash="1041729" %)
1464 AT+APPEUI:  Get or Set the Application EUI
1465
1466 (% _msthash="506080" _msttexthash="2104206" %)
1467 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1468
1469 (% _msthash="506081" _msttexthash="3369288" %)
1470 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1471
1472 (% _msthash="506082" _msttexthash="1894529" %)
1473 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1474
1475 (% _msthash="506083" _msttexthash="3864172" %)
1476 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1477
1478 (% _msthash="506084" _msttexthash="1712204" %)
1479 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1480
1481 (% _msthash="506085" _msttexthash="1281202" %)
1482 AT+RX2FQ:  Get or Set the Rx2 window frequency
1483
1484 (% _msthash="506086" _msttexthash="2796781" %)
1485 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1486
1487 (% _msthash="506087" _msttexthash="3285165" %)
1488 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1489
1490 (% _msthash="506088" _msttexthash="3286179" %)
1491 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1492
1493 (% _msthash="506089" _msttexthash="4703803" %)
1494 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1495
1496 (% _msthash="506090" _msttexthash="4704999" %)
1497 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1498
1499 (% _msthash="506091" _msttexthash="1528683" %)
1500 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1501
1502 (% _msthash="506092" _msttexthash="757185" %)
1503 AT+NWKID:  Get or Set the Network ID
1504
1505 (% _msthash="506093" _msttexthash="1156597" %)
1506 AT+FCU:  Get or Set the Frame Counter Uplink
1507
1508 (% _msthash="506094" _msttexthash="1273987" %)
1509 AT+FCD:  Get or Set the Frame Counter Downlink
1510
1511 (% _msthash="506095" _msttexthash="859222" %)
1512 AT+CLASS:  Get or Set the Device Class
1513
1514 (% _msthash="506096" _msttexthash="384852" %)
1515 AT+JOIN:  Join network
1516
1517 (% _msthash="506097" _msttexthash="548626" %)
1518 AT+NJS:  Get the join status
1519
1520 (% _msthash="506098" _msttexthash="2546206" %)
1521 AT+SENDB:  Send hexadecimal data along with the application port
1522
1523 (% _msthash="506099" _msttexthash="1932307" %)
1524 AT+SEND:  Send text data along with the application port
1525
1526 (% _msthash="506100" _msttexthash="3560557" %)
1527 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1528
1529 (% _msthash="506101" _msttexthash="1429701" %)
1530 AT+RECV:  Print last received data in raw format
1531
1532 (% _msthash="506102" _msttexthash="1735981" %)
1533 AT+VER:  Get current image version and Frequency Band
1534
1535 (% _msthash="506103" _msttexthash="1189474" %)
1536 AT+CFM:  Get or Set the confirmation mode (0-1)
1537
1538 (% _msthash="506104" _msttexthash="1718210" %)
1539 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1540
1541 (% _msthash="506105" _msttexthash="1339403" %)
1542 AT+SNR:  Get the SNR of the last received packet
1543
1544 (% _msthash="506106" _msttexthash="1452009" %)
1545 AT+RSSI:  Get the RSSI of the last received packet
1546
1547 (% _msthash="506107" _msttexthash="2768142" %)
1548 AT+TDC:  Get or set the application data transmission interval in ms
1549
1550 (% _msthash="506108" _msttexthash="1083914" %)
1551 AT+PORT:  Get or set the application port
1552
1553 (% _msthash="506109" _msttexthash="622440" %)
1554 AT+DISAT:  Disable AT commands
1555
1556 (% _msthash="506110" _msttexthash="868361" %)
1557 AT+PWORD: Set password, max 9 digits
1558
1559 (% _msthash="506111" _msttexthash="2210299" %)
1560 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1561
1562 (% _msthash="506112" _msttexthash="2113462" %)
1563 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1564
1565 (% _msthash="506113" _msttexthash="2087423" %)
1566 AT+PDTA:  Print the sector data from start page to stop page
1567
1568 (% _msthash="506114" _msttexthash="1063127" %)
1569 AT+PLDTA:  Print the last few sets of data
1570
1571 (% _msthash="506115" _msttexthash="1999426" %)
1572 AT+CLRDTA:  Clear the storage, record position back to 1st
1573
1574 (% _msthash="506116" _msttexthash="442130" %)
1575 AT+SLEEP:  Set sleep mode
1576
1577 (% _msthash="506117" _msttexthash="1080222" %)
1578 AT+EXT:  Get or Set external sensor model
1579
1580 (% _msthash="506118" _msttexthash="1309490" %)
1581 AT+BAT:  Get the current battery voltage in mV
1582
1583 (% _msthash="506119" _msttexthash="813891" %)
1584 AT+CFG:  Print all configurations
1585
1586 (% _msthash="506120" _msttexthash="551707" %)
1587 AT+WMOD:  Get or Set Work Mode
1588
1589 (% _msthash="506121" _msttexthash="2631499" %)
1590 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1591
1592 (% _msthash="506122" _msttexthash="3907150" %)
1593 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1594
1595 (% _msthash="506123" _msttexthash="854620" %)
1596 AT+SETCNT:  Set the count at present
1597
1598 (% _msthash="506124" _msttexthash="2554877" %)
1599 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1600
1601 (% _msthash="506125" _msttexthash="771849" %)
1602 AT+RPL:  Get or set response level
1603
1604 (% _msthash="506126" _msttexthash="1484314" %)
1605 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1606
1607 (% _msthash="506127" _msttexthash="741728" %)
1608 AT+LEAPSEC:  Get or Set Leap Second
1609
1610 (% _msthash="506128" _msttexthash="1694017" %)
1611 AT+SYNCMOD:  Get or Set time synchronization method
1612
1613 (% _msthash="506129" _msttexthash="2235948" %)
1614 AT+SYNCTDC:  Get or set time synchronization interval in day
1615
1616 (% _msthash="506130" _msttexthash="425542" %)
1617 AT+PID:  Get or set the PID
1618
1619
1620 == 6.2 Where to use AT commands and Downlink commands ==
1621
1622 (% _msthash="506131" _msttexthash="14585714" %)
1623 AT commands：
1624
1625 [[image:image-20220620153708-1.png||height="603" width="723"]]
1626
1627 (% _msthash="506132" _msttexthash="337922" %)
1628 Downlink commands:
1629
1630
1631 (% _msthash="506133" _msttexthash="33046" %)
1632 **TTN:**
1633
1634 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1635
1636
1637 (% _msthash="506134" _msttexthash="11113791" %)
1638 **Helium：**
1639
1640 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1641
1642
1643 (% _msthash="506135" _msttexthash="4159844" %)
1644 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1645
1646 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1647
1648 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1649
1650
1651 (% _msthash="506136" _msttexthash="39286" %)
1652 **Aws:**
1653
1654 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1655
1656
1657
1658 == 6.3 How to change the uplink interval？ ==
1659
1660 [[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"]]
1661
1662
1663
1664 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1665
1666 [[image:image-20220615153355-1.png]]
1667
1668 [[image:1655802313617-381.png]]
1669
1670
1671 (((
1672 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.
1673 )))
1674
1675
1676 Input password and ATZ to activate LHT65N,As shown below:
1677
1678 [[image:image-20220615154519-3.png||height="672" width="807"]]
1679
1680
1681
1682 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1683
1684
1685 [[image:image-20220615153355-1.png]]
1686
1687
1688 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1689
1690 [[image:image-20220615170542-5.png]]
1691
1692
1693 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1694
1695 (% _msthash="506146" _msttexthash="52173160" %)
1696 First connect the four lines；(% style="display:none" %)
1697
1698 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1699
1700
1701 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1702
1703 [[image:image-20220621170938-2.png]]
1704
1705
1706 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1707
1708 [[image:image-20220615171334-6.png]]
1709
1710
1711 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1712
1713
1714 When this interface appears, it indicates that the download has been completed.
1715
1716 [[image:image-20220620160723-8.png]]
1717
1718
1719 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1720
1721
1722 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1723
1724 [[image:image-20220623110706-1.png]]
1725
1726
1727 [[image:image-20220623112117-4.png||height="459" width="343"]]
1728
1729 (((
1730 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.
1731 )))
1732
1733
1734 Input password and ATZ to activate LHT65N,As shown below:
1735
1736 [[image:image-20220615154519-3.png||height="672" width="807"]]
1737
1738
1739 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1740
1741 [[image:image-20220623110706-1.png]]
1742
1743 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1744
1745 [[image:image-20220615170542-5.png]]
1746
1747
1748 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1749
1750 (% _msthash="506146" _msttexthash="52173160" %)
1751 First connect the four lines；
1752
1753 (% _msthash="506146" _msttexthash="52173160" %)
1754 [[image:image-20220623113959-5.png||height="528" width="397"]]
1755
1756 (% _msthash="506146" _msttexthash="52173160" %)
1757 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1758
1759 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1760
1761 [[image:image-20220615171334-6.png]]
1762
1763
1764 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1765
1766
1767 When this interface appears, it indicates that the download has been completed.
1768
1769 [[image:image-20220620160723-8.png]]
1770
1771
1772 Finally,restart reset device again
1773
1774
1775 = 7. Order Info =
1776
1777
1778 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1779
1780 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1781
1782 (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1783
1784 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1785
1786 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1787
1788 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1789
1790 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1791
1792 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1793
1794 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1795
1796 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1797
1798 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1799
1800 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1801
1802
1803
1804
1805
1806 = 8. Packing Info =
1807
1808
1809 **Package Includes**:
1810
1811 * LHT65N Temperature & Humidity Sensor x 1
1812 * Optional external sensor
1813
1814 **Dimension and weight**:
1815
1816 * Device Size:  10 x 10 x 3.5 cm
1817 * Device Weight: 120.5g
1818
1819
1820
1821
1822
1823 = 9. Reference material =
1824
1825 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1826
1827
1828
1829
1830
1831 = 10. FCC Warning =
1832
1833 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1834
1835 (1) This device may not cause harmful interference；
1836
1837 (2) this device must accept any interference received, including interference that may cause undesired operation.