Skip to Content
Version 185.1 by Bei Jinggeng on 2022/06/28 15:12
Show last authors
1 (% style="text-align:center" %)
2 [[image:image-20220613162008-1.png||_mstalt="428142" height="579" width="379"]]
3
4
5
6
7
8 (% _mstvisible="1" %)
9 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
10
11 {{toc/}}
12
13
14
15
16
17 = 1. Introduction =
18
19 == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20
21
22 (((
23 The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 )))
25
26 (((
27 The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
28 )))
29
30 (((
31 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 )))
33
34 (((
35 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 )))
37
38 (((
39 LHT65N supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
40 )))
41
42 (((
43 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 )))
45
46
47 == 1.2 Features ==
48
49 * Wall mountable
50 * LoRaWAN v1.0.3 Class A protocol
51 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
52 * AT Commands to change parameters
53 * Remote configure parameters via LoRaWAN Downlink
54 * Firmware upgradeable via program port
55 * Built-in 2400mAh battery for up to 10 years of use.
56 * Built-in Temperature & Humidity sensor
57 * Optional External Sensors
58 * Tri-color LED to indicate working status
59 * Datalog feature
60
61
62 == 1.3 Specification ==
63
64
65 **Built-in Temperature Sensor:**
66
67 * Resolution: 0.01 °C
68 * Accuracy Tolerance : Typ ±0.3 °C
69 * Long Term Drift: < 0.02 °C/yr
70 * Operating Range: -40 ~~ 85 °C
71
72 **Built-in Humidity Sensor:**
73
74 * Resolution: 0.04 %RH
75 * Accuracy Tolerance : Typ ±3 %RH
76 * Long Term Drift: < 0.02 °C/yr
77 * Operating Range: 0 ~~ 96 %RH
78
79 **External Temperature Sensor:**
80
81 * Resolution: 0.0625 °C
82 * ±0.5°C accuracy from -10°C to +85°C
83 * ±2°C accuracy from -55°C to +125°C
84 * Operating Range: -55 °C ~~ 125 °C
85
86
87 = 2. Connect LHT65N to IoT Server =
88
89 == 2.1 How does LHT65N work? ==
90
91 (((
92 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.
93 )))
94
95 (((
96 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.
97 )))
98
99
100 == 2.2 How to Activate LHT65N? ==
101
102 (((
103 The LHT65N has two working modes:
104 )))
105
106 * (((
107 (% 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.
108 )))
109 * (((
110 (% 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. 
111 )))
112
113 (((
114 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
115 )))
116
117
118 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
119
120 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
121
122
123
124 == 2.3 Example to join LoRaWAN network ==
125
126 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
127 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.
128
129 (% _mstvisible="1" class="wikigeneratedid" %)
130 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
131
132
133 (((
134 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:
135 )))
136
137
138
139 === 2.3.1 Step 1: Create Device n TTN ===
140
141 (((
142 Create a device in TTN V3 with the OTAA keys from LHT65N.
143 )))
144
145 (((
146 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
147 )))
148
149 [[image:image-20220617150003-1.jpeg]]
150
151 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
152
153 Add APP EUI in the application.
154
155
156 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
157
158
159 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
160
161
162 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
163
164
165 Note: LHT65N use same payload as LHT65.
166
167
168 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
169
170
171 Input APP EUI,  APP KEY and DEV EUI:
172
173
174 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
175
176
177
178
179 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
180
181 (((
182 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.
183 )))
184
185 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
186
187
188
189
190 == 2.4 Uplink Payload ==
191
192 (((
193 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.
194 )))
195
196 (((
197 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
198 )))
199
200 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
201 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
202 (((
203 (% _mstvisible="6" %)
204 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
205 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
206 (((
207 (% _mstvisible="6" %)
208 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
209 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
210 (((
211 (% _mstvisible="6" %)
212 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
213 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
214 (((
215 (% _mstvisible="6" %)
216 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
217 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
218 (((
219 (% _mstvisible="6" %)
220 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
221 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
222 (((
223 (% _mstvisible="6" %)
224 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
225 )))
226 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
227 (((
228 (% _mstvisible="6" %)
229 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
230 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
231 (((
232 (% _mstvisible="6" %)
233 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
234 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
235 (((
236 (% _mstvisible="6" %)
237 (((
238 (% _mstvisible="7" %)
239 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
240 )))
241 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
242 (((
243 (% _mstvisible="6" %)
244 (((
245 (% _mstvisible="7" %)
246 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
247 )))
248
249 (% _mstvisible="6" %)
250 (((
251 (% _mstvisible="7" %)
252 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
253 )))
254 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
255 (((
256 (% _mstvisible="6" %)
257 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
258 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
259 (((
260 (% _mstvisible="6" %)
261 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
262 )))
263
264 * The First 6 bytes: has fix meanings for every LHT65N.
265 * The 7th byte (EXT #): defines the external sensor model.
266 * 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.)
267
268 === 2.4.1 Decoder in TTN V3 ===
269
270 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.
271
272 Below is the position to put the decoder and LHT65N decoder can be download from here:
273
274
275 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
276
277
278 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
279
280
281
282
283 === 2.4.2 BAT-Battery Info ===
284
285 These two bytes of BAT include the battery state and the actually voltage
286
287 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
288
289
290 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
291
292
293 Check the battery voltage for LHT65N.
294
295 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
296 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
297
298 === 2.4.3 Built-in Temperature ===
299
300 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
301
302 * Temperature:  0x0ABB/100=27.47℃
303
304 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
305
306 * Temperature:  (0xF5C6-65536)/100=-26.18℃
307
308 === 2.4.4 Built-in Humidity ===
309
310 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
311
312 * Humidity:    0x025C/10=60.4%
313
314 === 2.4.5 Ext # ===
315
316 Bytes for External Sensor:
317
318 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
319
320
321
322 === 2.4.6 Ext value ===
323
324 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
325
326
327 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
328
329
330 * DS18B20 temp=0x0ADD/100=27.81℃
331
332 The last 2 bytes of data are meaningless
333
334 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
335
336
337 * External temperature= (0xF54F-65536)/100=-27.37℃
338
339 The last 2 bytes of data are meaningless
340
341 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
342
343
344
345 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
346
347 (((
348 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:
349 )))
350
351 (((
352
353 )))
354
355 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
356 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
357 (((
358 (% _mstvisible="6" %)
359 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
360 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
361 (((
362 (% _mstvisible="6" %)
363 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
364 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
365 (((
366 (% _mstvisible="6" %)
367 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
368 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
369 (((
370 (% _mstvisible="6" %)
371 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
372 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
373 (((
374 (% _mstvisible="6" %)
375 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
376 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
377 (((
378 (% _mstvisible="6" %)
379 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
380 )))
381 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
382 (((
383 (% _mstvisible="6" %)
384 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
385 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
386 (((
387 (% _mstvisible="6" %)
388 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
389 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
390 (((
391 (% _mstvisible="6" %)
392 (((
393 (% _mstvisible="7" %)
394 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
395 )))
396
397 (% _mstvisible="6" %)
398 (((
399 (% _mstvisible="7" %)
400 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
401 )))
402 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
403 (((
404 (% _mstvisible="6" %)
405 (((
406 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
407 BAT Status &
408 )))
409
410 (% _mstvisible="6" %)
411 (((
412 (% _mstvisible="7" %)
413 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
414 )))
415 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
416 (((
417 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
418 Status & Ext
419 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
420 (((
421 (% _mstvisible="6" %)
422 (((
423 (% _mstvisible="7" %)
424 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
425 )))
426 )))
427
428 (% _mstvisible="1" %)
429 * (% _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**
430
431 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
432 (% _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]
433 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
434 (((
435 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
436 BAT Status
437
438 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
439 00(b): Ultra Low ( BAT <= 2.50v)
440
441 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
442 01(b): Low  (2.50v <=BAT <= 2.55v)
443
444 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
445 10(b): OK   (2.55v <= BAT <=2.65v)
446
447 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
448 11(b): Good   (BAT >= 2.65v)
449 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
450 (((
451 (% _mstvisible="6" %)
452 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
453
454 (% _mstvisible="6" %)
455
456 )))
457
458 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
459
460 [[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]]
461
462 * Poll Message Flag:  1: This message is a poll message reply, 0: means this is a normal uplink.
463 * 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.
464 * 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)
465
466 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
467
468 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
469
470 be used to power the external ADC sensor; user can control the power on time for this
471
472 sensor by setting:
473
474 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
475
476 For example:
477
478 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
479
480
481 Or use **downlink command A2** to set the same.
482
483 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
484
485 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.
486
487 [[image:image-20220628150112-1.png||height="241" width="285"]]
488
489
490 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
491
492 [[image:image-20220628150714-4.png]]
493
494
495 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.
496
497 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
498
499 [[image:image-20220628151005-5.png]]
500
501
502 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
503
504 [[image:image-20220628151056-6.png]]
505
506
507 3) Within range
508
509 [[image:image-20220628151143-7.png]]
510
511
512 == 2.5 Show data on Datacake ==
513
514 (((
515 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:
516 )))
517
518 (((
519
520 )))
521
522 (((
523 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
524 )))
525
526 (((
527 (% 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.
528 )))
529
530 (((
531
532 )))
533
534 (((
535 Add Datacake:
536 )))
537
538
539 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
540
541
542
543 Select default key as Access Key:
544
545
546 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
547
548
549 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
550
551
552 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
553
554
555 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
556
557
558
559 == 2.6 Datalog Feature ==
560
561 (((
562 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.
563 )))
564
565
566
567 === 2.6.1 Ways to get datalog via LoRaWAN ===
568
569 There are two methods:
570
571 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
572 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.
573
574 === 2.6.2 Unix TimeStamp ===
575
576
577 LHT65N uses Unix TimeStamp format based on
578
579
580 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
581
582
583
584 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
585
586 Below is the converter example
587
588 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
589
590 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
591
592
593
594 === 2.6.3 Set Device Time ===
595
596 (((
597 There are two ways to set device's time:
598 )))
599
600 (((
601 **~1. Through LoRaWAN MAC Command (Default settings)**
602 )))
603
604 (((
605 User need to set SYNCMOD=1 to enable sync time via MAC command.
606 )))
607
608 (((
609 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).
610 )))
611
612 (((
613 (% 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.
614 )))
615
616 (((
617
618 )))
619
620 (((
621 **2. Manually Set Time**
622 )))
623
624 (((
625 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
626 )))
627
628
629
630 === 2.6.4 Poll sensor value ===
631
632 User can poll sensor value based on timestamps from the server. Below is the downlink command.
633
634 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
635
636
637 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.
638
639 For example, downlink command **31 5FC5F350 5FC6 0160 05**
640
641 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
642
643 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
644
645
646
647 === 2.6.5 Datalog Uplink payload ===
648
649 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
650 The Datalog poll reply uplink will use below payload format.
651
652 (% _mstvisible="1" %)
653 (((
654 (% _mstvisible="2" %)
655 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
656 )))
657
658 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
659 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
660 (((
661 (% _mstvisible="6" %)
662 (((
663 (% _mstvisible="7" %)
664 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
665 )))
666 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
667 (((
668 (% _mstvisible="6" %)
669 (((
670 (% _mstvisible="7" %)
671 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
672 )))
673 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
674 (((
675 (% _mstvisible="6" %)
676 (((
677 (% _mstvisible="7" %)
678 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
679 )))
680 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
681 (((
682 (% _mstvisible="6" %)
683 (((
684 (% _mstvisible="7" %)
685 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
686 )))
687 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
688 (((
689 (% _mstvisible="6" %)
690 (((
691 (% _mstvisible="7" %)
692 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
693 )))
694 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
695 (((
696 (% _mstvisible="6" %)
697 (((
698 (% _mstvisible="7" %)
699 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
700 )))
701 )))
702 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
703 (((
704 (% _mstvisible="6" %)
705 (((
706 (% _mstvisible="7" %)
707 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
708 )))
709 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
710 (((
711 (% _mstvisible="6" %)
712 (((
713 (% _mstvisible="7" %)
714 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
715 )))
716 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
717 (((
718 (% _mstvisible="6" %)
719 (((
720 (% _mstvisible="7" %)
721 (((
722 (% _mstvisible="8" %)
723 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
724 )))
725 )))
726
727 (% _mstvisible="6" %)
728 (((
729 (% _mstvisible="7" %)
730 (((
731 (% _mstvisible="8" %)
732 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
733 )))
734 )))
735 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
736 (((
737 (% _mstvisible="6" %)
738 (((
739 (% _mstvisible="7" %)
740 (((
741 (% _mstvisible="8" %)
742 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
743 )))
744 )))
745
746 (% _mstvisible="6" %)
747 (((
748 (% _mstvisible="7" %)
749 (((
750 (% _mstvisible="8" %)
751 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
752 )))
753 )))
754 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
755 (((
756 (% _mstvisible="6" %)
757 (((
758 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
759 Poll message flag & Ext
760 )))
761 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
762 (((
763 (% _mstvisible="6" %)
764 (((
765 (% _mstvisible="7" %)
766 (((
767 (% _mstvisible="8" %)
768 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
769 )))
770 )))
771
772 (% _mstvisible="6" %)
773 (((
774 (% _mstvisible="7" %)
775 (((
776 (% _mstvisible="8" %)
777
778 )))
779 )))
780 )))
781
782 (% _mstvisible="1" %)
783 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
784
785 (% _mstvisible="1" %)
786 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
787
788 (% _mstvisible="1" %)
789 (((
790 (% _mstvisible="2" %)
791 (((
792 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
793 (((
794 Poll Message Flag: 1: This message is a poll message reply.
795 )))
796 )))
797 )))
798
799 (% _mstvisible="1" %)
800 * (% _mstvisible="3" %)
801 (((
802 (% _mstvisible="4" %)
803 (((
804 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
805 (((
806 Poll Message Flag is set to 1.
807 )))
808 )))
809 )))
810 * (% _mstvisible="3" %)
811 (((
812 (% _mstvisible="4" %)
813 (((
814 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
815 (((
816 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
817 )))
818 )))
819 )))
820
821 (% _mstvisible="1" %)
822 (((
823 (% _mstvisible="2" %)
824 (((
825 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
826 (((
827
828 )))
829
830 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
831 (((
832 For example, in US915 band, the max payload for different DR is:
833 )))
834 )))
835 )))
836
837 (% _mstvisible="1" %)
838 (((
839 (% _mstvisible="2" %)
840 (((
841 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
842 (((
843 a) DR0: max is 11 bytes so one entry of data
844 )))
845 )))
846 )))
847
848 (% _mstvisible="1" %)
849 (((
850 (% _mstvisible="2" %)
851 (((
852 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
853 (((
854 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
855 )))
856 )))
857 )))
858
859 (% _mstvisible="1" %)
860 (((
861 (% _mstvisible="2" %)
862 (((
863 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
864 (((
865 c) DR2: total payload includes 11 entries of data
866 )))
867 )))
868 )))
869
870 (% _mstvisible="1" %)
871 (((
872 (% _mstvisible="2" %)
873 (((
874 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
875 (((
876 d) DR3: total payload includes 22 entries of data.
877 )))
878 )))
879 )))
880
881 (% _mstvisible="1" %)
882 (((
883 (% _mstvisible="2" %)
884 (((
885 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
886 (((
887 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
888 )))
889 )))
890 )))
891
892
893 (% _mstvisible="1" style="text-align: left;" %)
894 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
895
896 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
897 If LHT65N has below data inside Flash:
898
899 (% _mstvisible="1" %)
900 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
901
902 (% _mstvisible="1" %)
903 (((
904 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
905 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
906 )))
907
908 (% _mstvisible="1" %)
909 (((
910 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
911 Where : Start time: 60065F97 = time 21/1/19 04:27:03
912 )))
913
914 (% _mstvisible="1" %)
915 (((
916 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
917 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
918 )))
919
920 (% _mstvisible="1" %)
921 (((
922 (% _mstvisible="2" %)
923
924 )))
925
926 (% _mstvisible="1" %)
927 (((
928 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
929 LHT65N will uplink this payload.
930 )))
931
932 (% _mstvisible="1" %)
933 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
934
935 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
936 (((
937 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
938 )))
939
940 (% _msthash="315237" _msttexthash="1385839" %)
941 (((
942 Where the first 11 bytes is for the first entry:
943 )))
944
945 (% _msthash="315238" _msttexthash="274846" %)
946 (((
947 7FFF089801464160065F97
948 )))
949
950 (% _msthash="315239" _msttexthash="617435" %)
951 (((
952 Ext sensor data=0x7FFF/100=327.67
953 )))
954
955 (% _msthash="315240" _msttexthash="270543" %)
956 (((
957 Temp=0x0898/100=22.00
958 )))
959
960 (% _msthash="315241" _msttexthash="211783" %)
961 (((
962 Hum=0x0146/10=32.6
963 )))
964
965 (% _msthash="315242" _msttexthash="1569776" %)
966 (((
967 poll message flag & Ext=0x41,means reply data,Ext=1
968 )))
969
970 (% _msthash="315243" _msttexthash="1120509" %)
971 (((
972 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
973 )))
974
975
976
977 == 2.7 Alarm Mode ==
978
979 (((
980 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.
981 )))
982
983 (((
984 (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
985 )))
986
987 (((
988 **AT COMMAND FOR ALARM MODE:**
989 )))
990
991 (% _mstvisible="1" class="box infomessage" %)
992 (((
993 (((
994 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
995 )))
996
997 (((
998 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
999 )))
1000
1001 (((
1002 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1003 )))
1004
1005 (((
1006 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1007 )))
1008
1009 (((
1010 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1011 )))
1012 )))
1013
1014
1015
1016 == 2.8 LED Indicator ==
1017
1018 The LHT65 has a triple color LED which for easy showing different stage .
1019
1020 While user press ACT button, the LED will work as per LED status with ACT button.
1021
1022 In a normal working state:
1023
1024 * For each uplink, the BLUE LED or RED LED will blink once.
1025 BLUE LED when external sensor is connected.
1026 * RED LED when external sensor is not connected
1027 * For each success downlink, the PURPLE LED will blink once
1028
1029 == 2.9 installation ==
1030
1031 (% _mstvisible="1" %)
1032 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1033
1034
1035
1036 = 3. Sensors and Accessories =
1037
1038 == 3.1 E2 Extension Cable ==
1039
1040 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1041
1042 **1m long breakout cable for LHT65N. Features:**
1043
1044 * (((
1045 Use for AT Command， works for both LHT52/LHT65N
1046 )))
1047 * (((
1048 Update firmware for LHT65N, works for both LHT52/LHT65N
1049 )))
1050 * (((
1051 Supports ADC mode to monitor external ADC
1052 )))
1053 * (((
1054 Supports Interrupt mode
1055 )))
1056 * (((
1057 Exposed All pins from the LHT65N Type-C connector.
1058 )))
1059
1060 [[image:image-20220619092421-3.png||height="371" width="529"]]
1061
1062
1063
1064
1065 == 3.2 E3 Temperature Probe ==
1066
1067
1068 [[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"]]
1069
1070
1071 Temperature sensor with 2 meters cable long
1072
1073 * Resolution: 0.0625 °C
1074 * ±0.5°C accuracy from -10°C to +85°C
1075 * ±2°C accuracy from -55°C to +125°C
1076 * Operating Range: -40 ~~ 125 °C
1077 * Working voltage 2.35v ~~ 5v
1078
1079 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1080
1081 (((
1082 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1083 )))
1084
1085 * (((
1086 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1087 )))
1088
1089 * (((
1090 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1091 )))
1092
1093 (((
1094 There are two kinds of commands to configure LHT65N, they are:
1095 )))
1096
1097 * (((
1098 (% style="color:#4f81bd" %)**General Commands**.
1099 )))
1100
1101 (((
1102 These commands are to configure:
1103 )))
1104
1105 1. (((
1106 General system settings like: uplink interval.
1107 )))
1108 1. (((
1109 LoRaWAN protocol & radio-related commands.
1110 )))
1111
1112 (((
1113 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]]
1114 )))
1115
1116 * (((
1117 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1118 )))
1119
1120 (((
1121 These commands are only valid for LHT65N, as below:
1122 )))
1123
1124
1125 == 4.1 Set Transmit Interval Time ==
1126
1127 Feature: Change LoRaWAN End Node Transmit Interval.
1128
1129 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1130
1131 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1132
1133
1134 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1135
1136 Format: Command Code (0x01) followed by 3 bytes time value.
1137
1138 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1139
1140 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1141
1142 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1143
1144 == 4.2 Set External Sensor Mode ==
1145
1146 Feature: Change External Sensor Mode.
1147
1148 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1149
1150 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1151
1152
1153 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1154
1155 Total bytes: 2 ~~ 5 bytes
1156
1157 **Example:**
1158
1159 * 0xA201: Set external sensor type to E1
1160
1161 * 0xA209: Same as AT+EXT=9
1162
1163 * 0xA20702003c: Same as AT+SETCNT=60
1164
1165 == 4.3 Enable/Disable uplink Temperature probe ID ==
1166
1167 (((
1168 Feature: If PID is enabled, device will send the temperature probe ID on:
1169 )))
1170
1171 * (((
1172 First Packet after OTAA Join
1173 )))
1174 * (((
1175 Every 24 hours since the first packet.
1176 )))
1177
1178 (((
1179 PID is default set to disable (0)
1180 )))
1181
1182 (% style="color:#4f81bd" %)**AT Command:**
1183
1184 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1185
1186
1187 (% style="color:#4f81bd" %)**Downlink Command:**
1188
1189 * **0xA800**  **~-~->** AT+PID=0
1190 * **0xA801**     **~-~->** AT+PID=1
1191
1192 == 4.4 Set Password ==
1193
1194 Feature: Set device password, max 9 digits
1195
1196 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1197
1198 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1199
1200
1201 (% style="color:#4f81bd" %)**Downlink Command:**
1202
1203 No downlink command for this feature.
1204
1205
1206
1207 == 4.5 Quit AT Command ==
1208
1209 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1210
1211 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1212
1213 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1214
1215
1216 (% style="color:#4f81bd" %)**Downlink Command:**
1217
1218 No downlink command for this feature.
1219
1220
1221
1222 == 4.6 Set to sleep mode ==
1223
1224 Feature: Set device to sleep mode
1225
1226 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1227 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1228
1229 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1230
1231 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1232
1233
1234 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1235
1236 * There is no downlink command to set to Sleep mode.
1237
1238 == 4.7 Set system time ==
1239
1240 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1241
1242 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1243
1244 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1245
1246
1247 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1248
1249 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1250
1251
1252
1253 == 4.8 Set Time Sync Mode ==
1254
1255 (((
1256 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1257 )))
1258
1259 (((
1260 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.
1261 )))
1262
1263 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1264
1265 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1266
1267
1268 (% style="color:#4f81bd" %)**Downlink Command:**
1269
1270 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1271 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1272
1273
1274
1275 == 4.9 Set Time Sync Interval ==
1276
1277 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1278
1279 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1280
1281 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1282
1283
1284 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1285
1286 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1287
1288
1289
1290 == 4.10 Print data entries base on page. ==
1291
1292 Feature: Print the sector data from start page to stop page (max is 416 pages).
1293
1294 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1295
1296 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1297
1298
1299 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1300
1301 No downlink commands for feature
1302
1303
1304
1305 == 4.11 Print last few data entries. ==
1306
1307 Feature: Print the last few data entries
1308
1309 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1310
1311 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1312
1313
1314 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1315
1316 No downlink commands for feature
1317
1318
1319
1320 == 4.12 Clear Flash Record ==
1321
1322 Feature: Clear flash storage for data log feature.
1323
1324
1325 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1326
1327 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1328
1329
1330 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1331
1332 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1333
1334 == 4.13 Auto Send None-ACK messages ==
1335
1336 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1337 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.
1338
1339 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1340
1341 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1342 The default factory setting is 0
1343
1344 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1345 (% _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**
1346 (% _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
1347
1348 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1349
1350 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1351
1352 = 5. Battery & How to replace =
1353
1354 == 5.1 Battery Type ==
1355
1356 (((
1357 (((
1358 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.
1359 )))
1360 )))
1361
1362 (((
1363
1364 )))
1365
1366 (((
1367 (((
1368 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1369 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1370 )))
1371 )))
1372
1373 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1374
1375
1376 == 5.2 Replace Battery ==
1377
1378 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.
1379
1380 [[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"]]
1381
1382
1383 == 5.3 Battery Life Analyze ==
1384
1385 (((
1386 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:
1387 [[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]]
1388 )))
1389
1390 (((
1391
1392 )))
1393
1394 (((
1395 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]]
1396 )))
1397
1398
1399
1400 = 6. FAQ =
1401
1402 == 6.1 How to use AT Command? ==
1403
1404 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.
1405
1406 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1407
1408
1409 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1410
1411 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1412 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1413 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1414 * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1415
1416 (((
1417 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.
1418 )))
1419
1420
1421 Input password and ATZ to activate LHT65N,As shown below:
1422
1423 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1424
1425
1426 (% _msthash="506066" _msttexthash="544869" %)
1427 AT Command List is as below:
1428
1429 (% _msthash="506067" _msttexthash="361920" %)
1430 AT+<CMD>? :  Help on <CMD>
1431
1432 (% _msthash="506068" _msttexthash="243061" %)
1433 AT+<CMD> :  Run <CMD>
1434
1435 (% _msthash="506069" _msttexthash="704197" %)
1436 AT+<CMD>=<value> :  Set the value
1437
1438 (% _msthash="506070" _msttexthash="455676" %)
1439 AT+<CMD>=? :  Get the value
1440
1441 (% _msthash="506071" _msttexthash="670553" %)
1442 AT+DEBUG:  Set more info output
1443
1444 (% _msthash="506072" _msttexthash="485888" %)
1445 ATZ:  Trig a reset of the MCU
1446
1447 (% _msthash="506073" _msttexthash="2068872" %)
1448 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1449
1450 (% _msthash="506074" _msttexthash="689169" %)
1451 AT+DEUI:  Get or Set the Device EUI
1452
1453 (% _msthash="506075" _msttexthash="960414" %)
1454 AT+DADDR:  Get or Set the Device Address
1455
1456 (% _msthash="506076" _msttexthash="1079897" %)
1457 AT+APPKEY:  Get or Set the Application Key
1458
1459 (% _msthash="506077" _msttexthash="1326143" %)
1460 AT+NWKSKEY:  Get or Set the Network Session Key
1461
1462 (% _msthash="506078" _msttexthash="1573000" %)
1463 AT+APPSKEY:  Get or Set the Application Session Key
1464
1465 (% _msthash="506079" _msttexthash="1041729" %)
1466 AT+APPEUI:  Get or Set the Application EUI
1467
1468 (% _msthash="506080" _msttexthash="2104206" %)
1469 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1470
1471 (% _msthash="506081" _msttexthash="3369288" %)
1472 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1473
1474 (% _msthash="506082" _msttexthash="1894529" %)
1475 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1476
1477 (% _msthash="506083" _msttexthash="3864172" %)
1478 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1479
1480 (% _msthash="506084" _msttexthash="1712204" %)
1481 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1482
1483 (% _msthash="506085" _msttexthash="1281202" %)
1484 AT+RX2FQ:  Get or Set the Rx2 window frequency
1485
1486 (% _msthash="506086" _msttexthash="2796781" %)
1487 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1488
1489 (% _msthash="506087" _msttexthash="3285165" %)
1490 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1491
1492 (% _msthash="506088" _msttexthash="3286179" %)
1493 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1494
1495 (% _msthash="506089" _msttexthash="4703803" %)
1496 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1497
1498 (% _msthash="506090" _msttexthash="4704999" %)
1499 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1500
1501 (% _msthash="506091" _msttexthash="1528683" %)
1502 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1503
1504 (% _msthash="506092" _msttexthash="757185" %)
1505 AT+NWKID:  Get or Set the Network ID
1506
1507 (% _msthash="506093" _msttexthash="1156597" %)
1508 AT+FCU:  Get or Set the Frame Counter Uplink
1509
1510 (% _msthash="506094" _msttexthash="1273987" %)
1511 AT+FCD:  Get or Set the Frame Counter Downlink
1512
1513 (% _msthash="506095" _msttexthash="859222" %)
1514 AT+CLASS:  Get or Set the Device Class
1515
1516 (% _msthash="506096" _msttexthash="384852" %)
1517 AT+JOIN:  Join network
1518
1519 (% _msthash="506097" _msttexthash="548626" %)
1520 AT+NJS:  Get the join status
1521
1522 (% _msthash="506098" _msttexthash="2546206" %)
1523 AT+SENDB:  Send hexadecimal data along with the application port
1524
1525 (% _msthash="506099" _msttexthash="1932307" %)
1526 AT+SEND:  Send text data along with the application port
1527
1528 (% _msthash="506100" _msttexthash="3560557" %)
1529 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1530
1531 (% _msthash="506101" _msttexthash="1429701" %)
1532 AT+RECV:  Print last received data in raw format
1533
1534 (% _msthash="506102" _msttexthash="1735981" %)
1535 AT+VER:  Get current image version and Frequency Band
1536
1537 (% _msthash="506103" _msttexthash="1189474" %)
1538 AT+CFM:  Get or Set the confirmation mode (0-1)
1539
1540 (% _msthash="506104" _msttexthash="1718210" %)
1541 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1542
1543 (% _msthash="506105" _msttexthash="1339403" %)
1544 AT+SNR:  Get the SNR of the last received packet
1545
1546 (% _msthash="506106" _msttexthash="1452009" %)
1547 AT+RSSI:  Get the RSSI of the last received packet
1548
1549 (% _msthash="506107" _msttexthash="2768142" %)
1550 AT+TDC:  Get or set the application data transmission interval in ms
1551
1552 (% _msthash="506108" _msttexthash="1083914" %)
1553 AT+PORT:  Get or set the application port
1554
1555 (% _msthash="506109" _msttexthash="622440" %)
1556 AT+DISAT:  Disable AT commands
1557
1558 (% _msthash="506110" _msttexthash="868361" %)
1559 AT+PWORD: Set password, max 9 digits
1560
1561 (% _msthash="506111" _msttexthash="2210299" %)
1562 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1563
1564 (% _msthash="506112" _msttexthash="2113462" %)
1565 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1566
1567 (% _msthash="506113" _msttexthash="2087423" %)
1568 AT+PDTA:  Print the sector data from start page to stop page
1569
1570 (% _msthash="506114" _msttexthash="1063127" %)
1571 AT+PLDTA:  Print the last few sets of data
1572
1573 (% _msthash="506115" _msttexthash="1999426" %)
1574 AT+CLRDTA:  Clear the storage, record position back to 1st
1575
1576 (% _msthash="506116" _msttexthash="442130" %)
1577 AT+SLEEP:  Set sleep mode
1578
1579 (% _msthash="506117" _msttexthash="1080222" %)
1580 AT+EXT:  Get or Set external sensor model
1581
1582 (% _msthash="506118" _msttexthash="1309490" %)
1583 AT+BAT:  Get the current battery voltage in mV
1584
1585 (% _msthash="506119" _msttexthash="813891" %)
1586 AT+CFG:  Print all configurations
1587
1588 (% _msthash="506120" _msttexthash="551707" %)
1589 AT+WMOD:  Get or Set Work Mode
1590
1591 (% _msthash="506121" _msttexthash="2631499" %)
1592 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1593
1594 (% _msthash="506122" _msttexthash="3907150" %)
1595 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1596
1597 (% _msthash="506123" _msttexthash="854620" %)
1598 AT+SETCNT:  Set the count at present
1599
1600 (% _msthash="506124" _msttexthash="2554877" %)
1601 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1602
1603 (% _msthash="506125" _msttexthash="771849" %)
1604 AT+RPL:  Get or set response level
1605
1606 (% _msthash="506126" _msttexthash="1484314" %)
1607 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1608
1609 (% _msthash="506127" _msttexthash="741728" %)
1610 AT+LEAPSEC:  Get or Set Leap Second
1611
1612 (% _msthash="506128" _msttexthash="1694017" %)
1613 AT+SYNCMOD:  Get or Set time synchronization method
1614
1615 (% _msthash="506129" _msttexthash="2235948" %)
1616 AT+SYNCTDC:  Get or set time synchronization interval in day
1617
1618 (% _msthash="506130" _msttexthash="425542" %)
1619 AT+PID:  Get or set the PID
1620
1621
1622 == 6.2 Where to use AT commands and Downlink commands ==
1623
1624 (% _msthash="506131" _msttexthash="14585714" %)
1625 AT commands：
1626
1627 [[image:image-20220620153708-1.png||height="603" width="723"]]
1628
1629 (% _msthash="506132" _msttexthash="337922" %)
1630 Downlink commands:
1631
1632
1633 (% _msthash="506133" _msttexthash="33046" %)
1634 **TTN:**
1635
1636 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1637
1638
1639 (% _msthash="506134" _msttexthash="11113791" %)
1640 **Helium：**
1641
1642 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1643
1644
1645 (% _msthash="506135" _msttexthash="4159844" %)
1646 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1647
1648 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1649
1650 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1651
1652
1653 (% _msthash="506136" _msttexthash="39286" %)
1654 **Aws:**
1655
1656 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1657
1658
1659
1660 == 6.3 How to change the uplink interval？ ==
1661
1662 [[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"]]
1663
1664
1665
1666 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1667
1668 [[image:image-20220615153355-1.png]]
1669
1670 [[image:1655802313617-381.png]]
1671
1672
1673 (((
1674 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.
1675 )))
1676
1677
1678 Input password and ATZ to activate LHT65N,As shown below:
1679
1680 [[image:image-20220615154519-3.png||height="672" width="807"]]
1681
1682
1683
1684 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1685
1686
1687 [[image:image-20220615153355-1.png]]
1688
1689
1690 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1691
1692 [[image:image-20220615170542-5.png]]
1693
1694
1695 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1696
1697 (% _msthash="506146" _msttexthash="52173160" %)
1698 First connect the four lines；(% style="display:none" %)
1699
1700 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1701
1702
1703 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1704
1705 [[image:image-20220621170938-2.png]]
1706
1707
1708 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1709
1710 [[image:image-20220615171334-6.png]]
1711
1712
1713 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1714
1715
1716 When this interface appears, it indicates that the download has been completed.
1717
1718 [[image:image-20220620160723-8.png]]
1719
1720
1721 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1722
1723
1724 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1725
1726 [[image:image-20220623110706-1.png]]
1727
1728
1729 [[image:image-20220623112117-4.png||height="459" width="343"]]
1730
1731 (((
1732 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.
1733 )))
1734
1735
1736 Input password and ATZ to activate LHT65N,As shown below:
1737
1738 [[image:image-20220615154519-3.png||height="672" width="807"]]
1739
1740
1741 == 6.6 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1742
1743 [[image:image-20220623110706-1.png]]
1744
1745 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1746
1747 [[image:image-20220615170542-5.png]]
1748
1749
1750 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1751
1752 (% _msthash="506146" _msttexthash="52173160" %)
1753 First connect the four lines；
1754
1755 (% _msthash="506146" _msttexthash="52173160" %)
1756 [[image:image-20220623113959-5.png||height="528" width="397"]]
1757
1758 (% _msthash="506146" _msttexthash="52173160" %)
1759 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1760
1761 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1762
1763 [[image:image-20220615171334-6.png]]
1764
1765
1766 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1767
1768
1769 When this interface appears, it indicates that the download has been completed.
1770
1771 [[image:image-20220620160723-8.png]]
1772
1773
1774 Finally,restart reset device again
1775
1776
1777 = 7. Order Info =
1778
1779
1780 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1781
1782 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1783
1784 (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1785
1786 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1787
1788 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1789
1790 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1791
1792 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1793
1794 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1795
1796 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1797
1798 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1799
1800 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1801
1802 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1803
1804 = 8. Packing Info =
1805
1806
1807 **Package Includes**:
1808
1809 * LHT65N Temperature & Humidity Sensor x 1
1810 * Optional external sensor
1811
1812 **Dimension and weight**:
1813
1814 * Device Size:  10 x 10 x 3.5 cm
1815 * Device Weight: 120.5g
1816
1817 = 9. Reference material =
1818
1819 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1820
1821 = 10. FCC Warning =
1822
1823 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1824
1825 (1) This device may not cause harmful interference；
1826
1827 (2) this device must accept any interference received, including interference that may cause undesired operation.