Skip to Content
Version 189.3 by Xiaoling on 2022/07/22 10:33
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 == 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
267
268
269 === 2.4.1 Decoder in TTN V3 ===
270
271 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.
272
273 Below is the position to put the decoder and LHT65N decoder can be download from here:
274
275
276 [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
277
278
279 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
280
281
282
283
284 === 2.4.2 BAT-Battery Info ===
285
286 These two bytes of BAT include the battery state and the actually voltage
287
288 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
289
290
291 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
292
293
294 Check the battery voltage for LHT65N.
295
296 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
297 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
298
299
300
301
302 === 2.4.3 Built-in Temperature ===
303
304 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
305
306 * Temperature:  0x0ABB/100=27.47℃
307
308 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
309
310 * Temperature:  (0xF5C6-65536)/100=-26.18℃
311
312
313
314
315 === 2.4.4 Built-in Humidity ===
316
317 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
318
319 * Humidity:    0x025C/10=60.4%
320
321
322
323
324 === 2.4.5 Ext # ===
325
326 Bytes for External Sensor:
327
328 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
329
330
331
332 === 2.4.6 Ext value ===
333
334 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
335
336
337 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
338
339
340 * DS18B20 temp=0x0ADD/100=27.81℃
341
342 The last 2 bytes of data are meaningless
343
344 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
345
346
347 * External temperature= (0xF54F-65536)/100=-27.37℃
348
349 The last 2 bytes of data are meaningless
350
351 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
352
353
354
355 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
356
357 (((
358 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:
359 )))
360
361 (((
362
363 )))
364
365 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
366 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
367 (((
368 (% _mstvisible="6" %)
369 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
370 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
371 (((
372 (% _mstvisible="6" %)
373 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
374 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
375 (((
376 (% _mstvisible="6" %)
377 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
378 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
379 (((
380 (% _mstvisible="6" %)
381 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
382 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
383 (((
384 (% _mstvisible="6" %)
385 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
386 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
387 (((
388 (% _mstvisible="6" %)
389 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
390 )))
391 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
392 (((
393 (% _mstvisible="6" %)
394 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
395 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
396 (((
397 (% _mstvisible="6" %)
398 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
399 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
400 (((
401 (% _mstvisible="6" %)
402 (((
403 (% _mstvisible="7" %)
404 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
405 )))
406
407 (% _mstvisible="6" %)
408 (((
409 (% _mstvisible="7" %)
410 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
411 )))
412 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
413 (((
414 (% _mstvisible="6" %)
415 (((
416 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
417 BAT Status &
418 )))
419
420 (% _mstvisible="6" %)
421 (((
422 (% _mstvisible="7" %)
423 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
424 )))
425 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
426 (((
427 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
428 Status & Ext
429 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
430 (((
431 (% _mstvisible="6" %)
432 (((
433 (% _mstvisible="7" %)
434 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
435 )))
436 )))
437
438 (% _mstvisible="1" %)
439 * (% _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**
440
441 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
442 (% _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]
443 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
444 (((
445 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
446 BAT Status
447
448 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
449 00(b): Ultra Low ( BAT <= 2.50v)
450
451 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
452 01(b): Low  (2.50v <=BAT <= 2.55v)
453
454 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
455 10(b): OK   (2.55v <= BAT <=2.65v)
456
457 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
458 11(b): Good   (BAT >= 2.65v)
459 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
460 (((
461 (% _mstvisible="6" %)
462 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
463
464 (% _mstvisible="6" %)
465
466 )))
467
468 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
469
470 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
471 |(% style="width:60px" %)**Bits**|(% style="width:90px" %)**7**|(% style="width:100px" %)**6**|(% style="width:90px" %)**5**|(% style="width:100px" %)**4**|(% style="width:60px" %)**[3:0]**
472 |(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)None-ACK Flag|(% style="width:146px" %)Poll Message FLAG|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001)
473
474 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
475 * (% style="color:blue" %)**Sync time OK**: (%%) 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
476 * (% style="color:blue" %)**Unix Time Request**:(%%)  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
477
478
479
480 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
481
482 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
483
484 be used to power the external ADC sensor; user can control the power on time for this
485
486 sensor by setting:
487
488 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
489
490 For example:
491
492 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
493
494
495 Or use **downlink command A2** to set the same.
496
497 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
498
499 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.
500
501 [[image:image-20220628150112-1.png||height="241" width="285"]]
502
503
504 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
505
506 [[image:image-20220628150714-4.png]]
507
508
509 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.
510
511 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
512
513 [[image:image-20220628151005-5.png]]
514
515
516 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
517
518 [[image:image-20220628151056-6.png]]
519
520
521 3) Within range
522
523 [[image:image-20220628151143-7.png]]
524
525
526
527 == 2.5 Show data on Datacake ==
528
529 (((
530 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:
531 )))
532
533 (((
534
535 )))
536
537 (((
538 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
539 )))
540
541 (((
542 (% 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.
543 )))
544
545 (((
546
547 )))
548
549 (((
550 Add Datacake:
551 )))
552
553
554 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
555
556
557
558 Select default key as Access Key:
559
560
561 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
562
563
564 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
565
566
567 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
568
569
570 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
571
572
573
574 == 2.6 Datalog Feature ==
575
576 (((
577 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.
578 )))
579
580
581
582 === 2.6.1 Ways to get datalog via LoRaWAN ===
583
584 There are two methods:
585
586 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
587 1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after the network recovery.
588
589 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
590
591 [[image:image-20220703111700-2.png||height="381" width="1119"]]
592
593
594 === 2.6.2 Unix TimeStamp ===
595
596
597 LHT65N uses Unix TimeStamp format based on
598
599
600 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
601
602
603
604 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
605
606 Below is the converter example
607
608 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
609
610 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
611
612
613
614 === 2.6.3 Set Device Time ===
615
616 (((
617 There are two ways to set device's time:
618 )))
619
620 (((
621 **~1. Through LoRaWAN MAC Command (Default settings)**
622 )))
623
624 (((
625 User need to set SYNCMOD=1 to enable sync time via MAC command.
626 )))
627
628 (((
629 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).
630 )))
631
632 (((
633 (% 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.
634 )))
635
636 (((
637
638 )))
639
640 (((
641 **2. Manually Set Time**
642 )))
643
644 (((
645 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
646 )))
647
648
649
650 === 2.6.4 Poll sensor value ===
651
652 User can poll sensor value based on timestamps from the server. Below is the downlink command.
653
654 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
655
656
657 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.
658
659 For example, downlink command **31 5FC5F350 5FC6 0160 05**
660
661 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
662
663 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
664
665
666
667 === 2.6.5 Datalog Uplink payload ===
668
669 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
670 The Datalog poll reply uplink will use below payload format.
671
672 (% _mstvisible="1" %)
673 (((
674 (% _mstvisible="2" %)
675 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
676 )))
677
678 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
679 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
680 (((
681 (% _mstvisible="6" %)
682 (((
683 (% _mstvisible="7" %)
684 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
685 )))
686 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
687 (((
688 (% _mstvisible="6" %)
689 (((
690 (% _mstvisible="7" %)
691 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
692 )))
693 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
694 (((
695 (% _mstvisible="6" %)
696 (((
697 (% _mstvisible="7" %)
698 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
699 )))
700 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
701 (((
702 (% _mstvisible="6" %)
703 (((
704 (% _mstvisible="7" %)
705 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
706 )))
707 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
708 (((
709 (% _mstvisible="6" %)
710 (((
711 (% _mstvisible="7" %)
712 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
713 )))
714 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
715 (((
716 (% _mstvisible="6" %)
717 (((
718 (% _mstvisible="7" %)
719 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
720 )))
721 )))
722 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
723 (((
724 (% _mstvisible="6" %)
725 (((
726 (% _mstvisible="7" %)
727 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
728 )))
729 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
730 (((
731 (% _mstvisible="6" %)
732 (((
733 (% _mstvisible="7" %)
734 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
735 )))
736 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
737 (((
738 (% _mstvisible="6" %)
739 (((
740 (% _mstvisible="7" %)
741 (((
742 (% _mstvisible="8" %)
743 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
744 )))
745 )))
746
747 (% _mstvisible="6" %)
748 (((
749 (% _mstvisible="7" %)
750 (((
751 (% _mstvisible="8" %)
752 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
753 )))
754 )))
755 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
756 (((
757 (% _mstvisible="6" %)
758 (((
759 (% _mstvisible="7" %)
760 (((
761 (% _mstvisible="8" %)
762 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
763 )))
764 )))
765
766 (% _mstvisible="6" %)
767 (((
768 (% _mstvisible="7" %)
769 (((
770 (% _mstvisible="8" %)
771 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
772 )))
773 )))
774 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
775 (((
776 (% _mstvisible="6" %)
777 (((
778 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
779 Poll message flag & Ext
780 )))
781 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
782 (((
783 (% _mstvisible="6" %)
784 (((
785 (% _mstvisible="7" %)
786 (((
787 (% _mstvisible="8" %)
788 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
789 )))
790 )))
791
792 (% _mstvisible="6" %)
793 (((
794 (% _mstvisible="7" %)
795 (((
796 (% _mstvisible="8" %)
797
798 )))
799 )))
800 )))
801
802 (% _mstvisible="1" %)
803 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
804
805 (% _mstvisible="1" %)
806 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
807
808 (% _mstvisible="1" %)
809 (((
810 (% _mstvisible="2" %)
811 (((
812 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
813 (((
814 Poll Message Flag: 1: This message is a poll message reply.
815 )))
816 )))
817 )))
818
819 (% _mstvisible="1" %)
820 * (% _mstvisible="3" %)
821 (((
822 (% _mstvisible="4" %)
823 (((
824 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
825 (((
826 Poll Message Flag is set to 1.
827 )))
828 )))
829 )))
830 * (% _mstvisible="3" %)
831 (((
832 (% _mstvisible="4" %)
833 (((
834 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
835 (((
836 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
837 )))
838 )))
839 )))
840
841 (% _mstvisible="1" %)
842 (((
843 (% _mstvisible="2" %)
844 (((
845 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
846 (((
847
848 )))
849
850 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
851 (((
852 For example, in US915 band, the max payload for different DR is:
853 )))
854 )))
855 )))
856
857 (% _mstvisible="1" %)
858 (((
859 (% _mstvisible="2" %)
860 (((
861 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
862 (((
863 a) DR0: max is 11 bytes so one entry of data
864 )))
865 )))
866 )))
867
868 (% _mstvisible="1" %)
869 (((
870 (% _mstvisible="2" %)
871 (((
872 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
873 (((
874 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
875 )))
876 )))
877 )))
878
879 (% _mstvisible="1" %)
880 (((
881 (% _mstvisible="2" %)
882 (((
883 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
884 (((
885 c) DR2: total payload includes 11 entries of data
886 )))
887 )))
888 )))
889
890 (% _mstvisible="1" %)
891 (((
892 (% _mstvisible="2" %)
893 (((
894 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
895 (((
896 d) DR3: total payload includes 22 entries of data.
897 )))
898 )))
899 )))
900
901 (% _mstvisible="1" %)
902 (((
903 (% _mstvisible="2" %)
904 (((
905 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
906 (((
907 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
908 )))
909 )))
910 )))
911
912
913 (% _mstvisible="1" style="text-align: left;" %)
914 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
915
916 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
917 If LHT65N has below data inside Flash:
918
919 (% _mstvisible="1" %)
920 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
921
922 (% _mstvisible="1" %)
923 (((
924 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
925 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
926 )))
927
928 (% _mstvisible="1" %)
929 (((
930 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
931 Where : Start time: 60065F97 = time 21/1/19 04:27:03
932 )))
933
934 (% _mstvisible="1" %)
935 (((
936 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
937 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
938 )))
939
940 (% _mstvisible="1" %)
941 (((
942 (% _mstvisible="2" %)
943
944 )))
945
946 (% _mstvisible="1" %)
947 (((
948 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
949 LHT65N will uplink this payload.
950 )))
951
952 (% _mstvisible="1" %)
953 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
954
955 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
956 (((
957 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
958 )))
959
960 (% _msthash="315237" _msttexthash="1385839" %)
961 (((
962 Where the first 11 bytes is for the first entry:
963 )))
964
965 (% _msthash="315238" _msttexthash="274846" %)
966 (((
967 7FFF089801464160065F97
968 )))
969
970 (% _msthash="315239" _msttexthash="617435" %)
971 (((
972 Ext sensor data=0x7FFF/100=327.67
973 )))
974
975 (% _msthash="315240" _msttexthash="270543" %)
976 (((
977 Temp=0x0898/100=22.00
978 )))
979
980 (% _msthash="315241" _msttexthash="211783" %)
981 (((
982 Hum=0x0146/10=32.6
983 )))
984
985 (% _msthash="315242" _msttexthash="1569776" %)
986 (((
987 poll message flag & Ext=0x41,means reply data,Ext=1
988 )))
989
990 (% _msthash="315243" _msttexthash="1120509" %)
991 (((
992 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
993 )))
994
995
996
997 == 2.7 Alarm Mode ==
998
999 (((
1000 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.
1001 )))
1002
1003 (((
1004 (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1005 )))
1006
1007 (((
1008 **AT COMMAND FOR ALARM MODE:**
1009 )))
1010
1011 (% _mstvisible="1" class="box infomessage" %)
1012 (((
1013 (((
1014 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1015 )))
1016
1017 (((
1018 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1019 )))
1020
1021 (((
1022 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1023 )))
1024
1025 (((
1026 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1027 )))
1028
1029 (((
1030 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1031 )))
1032 )))
1033
1034 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1035
1036 Total bytes: 8 bytes
1037
1038 **Example:**AA0100010001003C
1039
1040 WMOD=01
1041
1042 CITEMP=0001
1043
1044 TEMPlow=0001
1045
1046 TEMPhigh=003C
1047
1048
1049 == 2.8 LED Indicator ==
1050
1051 The LHT65 has a triple color LED which for easy showing different stage .
1052
1053 While user press ACT button, the LED will work as per LED status with ACT button.
1054
1055 In a normal working state:
1056
1057 * For each uplink, the BLUE LED or RED LED will blink once.
1058 BLUE LED when external sensor is connected.
1059 * RED LED when external sensor is not connected
1060 * For each success downlink, the PURPLE LED will blink once
1061
1062 == 2.9 installation ==
1063
1064 (% _mstvisible="1" %)
1065 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1066
1067
1068
1069 = 3. Sensors and Accessories =
1070
1071 == 3.1 E2 Extension Cable ==
1072
1073 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1074
1075 **1m long breakout cable for LHT65N. Features:**
1076
1077 * (((
1078 Use for AT Command， works for both LHT52/LHT65N
1079 )))
1080 * (((
1081 Update firmware for LHT65N, works for both LHT52/LHT65N
1082 )))
1083 * (((
1084 Supports ADC mode to monitor external ADC
1085 )))
1086 * (((
1087 Supports Interrupt mode
1088 )))
1089 * (((
1090 Exposed All pins from the LHT65N Type-C connector.
1091 )))
1092
1093 [[image:image-20220619092421-3.png||height="371" width="529"]]
1094
1095
1096
1097
1098 == 3.2 E3 Temperature Probe ==
1099
1100
1101 [[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"]]
1102
1103
1104 Temperature sensor with 2 meters cable long
1105
1106 * Resolution: 0.0625 °C
1107 * ±0.5°C accuracy from -10°C to +85°C
1108 * ±2°C accuracy from -55°C to +125°C
1109 * Operating Range: -40 ~~ 125 °C
1110 * Working voltage 2.35v ~~ 5v
1111
1112 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1113
1114 (((
1115 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1116 )))
1117
1118 * (((
1119 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1120 )))
1121
1122 * (((
1123 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1124 )))
1125
1126 (((
1127 There are two kinds of commands to configure LHT65N, they are:
1128 )))
1129
1130 * (((
1131 (% style="color:#4f81bd" %)**General Commands**.
1132 )))
1133
1134 (((
1135 These commands are to configure:
1136 )))
1137
1138 1. (((
1139 General system settings like: uplink interval.
1140 )))
1141 1. (((
1142 LoRaWAN protocol & radio-related commands.
1143 )))
1144
1145 (((
1146 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]]
1147 )))
1148
1149 * (((
1150 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1151 )))
1152
1153 (((
1154 These commands are only valid for LHT65N, as below:
1155 )))
1156
1157
1158 == 4.1 Set Transmit Interval Time ==
1159
1160 Feature: Change LoRaWAN End Node Transmit Interval.
1161
1162 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1163
1164 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1165
1166
1167 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1168
1169 Format: Command Code (0x01) followed by 3 bytes time value.
1170
1171 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1172
1173 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1174
1175 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1176
1177 == 4.2 Set External Sensor Mode ==
1178
1179 Feature: Change External Sensor Mode.
1180
1181 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1182
1183 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1184
1185
1186 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1187
1188 Total bytes: 2 ~~ 5 bytes
1189
1190 **Example:**
1191
1192 * 0xA201: Set external sensor type to E1
1193
1194 * 0xA209: Same as AT+EXT=9
1195
1196 * 0xA20702003c: Same as AT+SETCNT=60
1197
1198 == 4.3 Enable/Disable uplink Temperature probe ID ==
1199
1200 (((
1201 Feature: If PID is enabled, device will send the temperature probe ID on:
1202 )))
1203
1204 * (((
1205 First Packet after OTAA Join
1206 )))
1207 * (((
1208 Every 24 hours since the first packet.
1209 )))
1210
1211 (((
1212 PID is default set to disable (0)
1213 )))
1214
1215 (% style="color:#4f81bd" %)**AT Command:**
1216
1217 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1218
1219
1220 (% style="color:#4f81bd" %)**Downlink Command:**
1221
1222 * **0xA800**  **~-~->** AT+PID=0
1223 * **0xA801**     **~-~->** AT+PID=1
1224
1225 == 4.4 Set Password ==
1226
1227 Feature: Set device password, max 9 digits
1228
1229 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1230
1231 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1232
1233
1234 (% style="color:#4f81bd" %)**Downlink Command:**
1235
1236 No downlink command for this feature.
1237
1238
1239
1240 == 4.5 Quit AT Command ==
1241
1242 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1243
1244 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1245
1246 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1247
1248
1249 (% style="color:#4f81bd" %)**Downlink Command:**
1250
1251 No downlink command for this feature.
1252
1253
1254
1255 == 4.6 Set to sleep mode ==
1256
1257 Feature: Set device to sleep mode
1258
1259 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1260 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1261
1262 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1263
1264 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1265
1266
1267 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1268
1269 * There is no downlink command to set to Sleep mode.
1270
1271 == 4.7 Set system time ==
1272
1273 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1274
1275 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1276
1277 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1278
1279
1280 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1281
1282 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1283
1284
1285
1286 == 4.8 Set Time Sync Mode ==
1287
1288 (((
1289 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1290 )))
1291
1292 (((
1293 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.
1294 )))
1295
1296 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1297
1298 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1299
1300
1301 (% style="color:#4f81bd" %)**Downlink Command:**
1302
1303 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1304 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1305
1306
1307
1308 == 4.9 Set Time Sync Interval ==
1309
1310 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1311
1312 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1313
1314 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1315
1316
1317 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1318
1319 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1320
1321
1322
1323 == 4.10 Print data entries base on page. ==
1324
1325 Feature: Print the sector data from start page to stop page (max is 416 pages).
1326
1327 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1328
1329 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1330
1331
1332 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1333
1334 No downlink commands for feature
1335
1336
1337
1338 == 4.11 Print last few data entries. ==
1339
1340 Feature: Print the last few data entries
1341
1342 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1343
1344 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1345
1346
1347 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1348
1349 No downlink commands for feature
1350
1351
1352
1353 == 4.12 Clear Flash Record ==
1354
1355 Feature: Clear flash storage for data log feature.
1356
1357
1358 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1359
1360 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1361
1362
1363 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1364
1365 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1366
1367 == 4.13 Auto Send None-ACK messages ==
1368
1369 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1370 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.
1371
1372 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1373
1374 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1375 The default factory setting is 0
1376
1377 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1378 (% _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**
1379 (% _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
1380
1381 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1382
1383 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1384
1385 = 5. Battery & How to replace =
1386
1387 == 5.1 Battery Type ==
1388
1389 (((
1390 (((
1391 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.
1392 )))
1393 )))
1394
1395 (((
1396
1397 )))
1398
1399 (((
1400 (((
1401 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1402 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1403 )))
1404 )))
1405
1406 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1407
1408
1409 == 5.2 Replace Battery ==
1410
1411 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.
1412
1413 [[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"]]
1414
1415
1416 == 5.3 Battery Life Analyze ==
1417
1418 (((
1419 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:
1420 [[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]]
1421 )))
1422
1423 (((
1424
1425 )))
1426
1427 (((
1428 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]]
1429 )))
1430
1431
1432
1433 = 6. FAQ =
1434
1435 == 6.1 How to use AT Command? ==
1436
1437 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.
1438
1439 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1440
1441
1442 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1443
1444 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1445 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1446 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1447 * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1448
1449 (((
1450 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.
1451 )))
1452
1453
1454 Input password and ATZ to activate LHT65N,As shown below:
1455
1456 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1457
1458
1459 (% _msthash="506066" _msttexthash="544869" %)
1460 AT Command List is as below:
1461
1462 (% _msthash="506067" _msttexthash="361920" %)
1463 AT+<CMD>? :  Help on <CMD>
1464
1465 (% _msthash="506068" _msttexthash="243061" %)
1466 AT+<CMD> :  Run <CMD>
1467
1468 (% _msthash="506069" _msttexthash="704197" %)
1469 AT+<CMD>=<value> :  Set the value
1470
1471 (% _msthash="506070" _msttexthash="455676" %)
1472 AT+<CMD>=? :  Get the value
1473
1474 (% _msthash="506071" _msttexthash="670553" %)
1475 AT+DEBUG:  Set more info output
1476
1477 (% _msthash="506072" _msttexthash="485888" %)
1478 ATZ:  Trig a reset of the MCU
1479
1480 (% _msthash="506073" _msttexthash="2068872" %)
1481 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1482
1483 (% _msthash="506074" _msttexthash="689169" %)
1484 AT+DEUI:  Get or Set the Device EUI
1485
1486 (% _msthash="506075" _msttexthash="960414" %)
1487 AT+DADDR:  Get or Set the Device Address
1488
1489 (% _msthash="506076" _msttexthash="1079897" %)
1490 AT+APPKEY:  Get or Set the Application Key
1491
1492 (% _msthash="506077" _msttexthash="1326143" %)
1493 AT+NWKSKEY:  Get or Set the Network Session Key
1494
1495 (% _msthash="506078" _msttexthash="1573000" %)
1496 AT+APPSKEY:  Get or Set the Application Session Key
1497
1498 (% _msthash="506079" _msttexthash="1041729" %)
1499 AT+APPEUI:  Get or Set the Application EUI
1500
1501 (% _msthash="506080" _msttexthash="2104206" %)
1502 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1503
1504 (% _msthash="506081" _msttexthash="3369288" %)
1505 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1506
1507 (% _msthash="506082" _msttexthash="1894529" %)
1508 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1509
1510 (% _msthash="506083" _msttexthash="3864172" %)
1511 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1512
1513 (% _msthash="506084" _msttexthash="1712204" %)
1514 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1515
1516 (% _msthash="506085" _msttexthash="1281202" %)
1517 AT+RX2FQ:  Get or Set the Rx2 window frequency
1518
1519 (% _msthash="506086" _msttexthash="2796781" %)
1520 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1521
1522 (% _msthash="506087" _msttexthash="3285165" %)
1523 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1524
1525 (% _msthash="506088" _msttexthash="3286179" %)
1526 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1527
1528 (% _msthash="506089" _msttexthash="4703803" %)
1529 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1530
1531 (% _msthash="506090" _msttexthash="4704999" %)
1532 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1533
1534 (% _msthash="506091" _msttexthash="1528683" %)
1535 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1536
1537 (% _msthash="506092" _msttexthash="757185" %)
1538 AT+NWKID:  Get or Set the Network ID
1539
1540 (% _msthash="506093" _msttexthash="1156597" %)
1541 AT+FCU:  Get or Set the Frame Counter Uplink
1542
1543 (% _msthash="506094" _msttexthash="1273987" %)
1544 AT+FCD:  Get or Set the Frame Counter Downlink
1545
1546 (% _msthash="506095" _msttexthash="859222" %)
1547 AT+CLASS:  Get or Set the Device Class
1548
1549 (% _msthash="506096" _msttexthash="384852" %)
1550 AT+JOIN:  Join network
1551
1552 (% _msthash="506097" _msttexthash="548626" %)
1553 AT+NJS:  Get the join status
1554
1555 (% _msthash="506098" _msttexthash="2546206" %)
1556 AT+SENDB:  Send hexadecimal data along with the application port
1557
1558 (% _msthash="506099" _msttexthash="1932307" %)
1559 AT+SEND:  Send text data along with the application port
1560
1561 (% _msthash="506100" _msttexthash="3560557" %)
1562 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1563
1564 (% _msthash="506101" _msttexthash="1429701" %)
1565 AT+RECV:  Print last received data in raw format
1566
1567 (% _msthash="506102" _msttexthash="1735981" %)
1568 AT+VER:  Get current image version and Frequency Band
1569
1570 (% _msthash="506103" _msttexthash="1189474" %)
1571 AT+CFM:  Get or Set the confirmation mode (0-1)
1572
1573 (% _msthash="506104" _msttexthash="1718210" %)
1574 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1575
1576 (% _msthash="506105" _msttexthash="1339403" %)
1577 AT+SNR:  Get the SNR of the last received packet
1578
1579 (% _msthash="506106" _msttexthash="1452009" %)
1580 AT+RSSI:  Get the RSSI of the last received packet
1581
1582 (% _msthash="506107" _msttexthash="2768142" %)
1583 AT+TDC:  Get or set the application data transmission interval in ms
1584
1585 (% _msthash="506108" _msttexthash="1083914" %)
1586 AT+PORT:  Get or set the application port
1587
1588 (% _msthash="506109" _msttexthash="622440" %)
1589 AT+DISAT:  Disable AT commands
1590
1591 (% _msthash="506110" _msttexthash="868361" %)
1592 AT+PWORD: Set password, max 9 digits
1593
1594 (% _msthash="506111" _msttexthash="2210299" %)
1595 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1596
1597 (% _msthash="506112" _msttexthash="2113462" %)
1598 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1599
1600 (% _msthash="506113" _msttexthash="2087423" %)
1601 AT+PDTA:  Print the sector data from start page to stop page
1602
1603 (% _msthash="506114" _msttexthash="1063127" %)
1604 AT+PLDTA:  Print the last few sets of data
1605
1606 (% _msthash="506115" _msttexthash="1999426" %)
1607 AT+CLRDTA:  Clear the storage, record position back to 1st
1608
1609 (% _msthash="506116" _msttexthash="442130" %)
1610 AT+SLEEP:  Set sleep mode
1611
1612 (% _msthash="506117" _msttexthash="1080222" %)
1613 AT+EXT:  Get or Set external sensor model
1614
1615 (% _msthash="506118" _msttexthash="1309490" %)
1616 AT+BAT:  Get the current battery voltage in mV
1617
1618 (% _msthash="506119" _msttexthash="813891" %)
1619 AT+CFG:  Print all configurations
1620
1621 (% _msthash="506120" _msttexthash="551707" %)
1622 AT+WMOD:  Get or Set Work Mode
1623
1624 (% _msthash="506121" _msttexthash="2631499" %)
1625 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1626
1627 (% _msthash="506122" _msttexthash="3907150" %)
1628 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1629
1630 (% _msthash="506123" _msttexthash="854620" %)
1631 AT+SETCNT:  Set the count at present
1632
1633 (% _msthash="506124" _msttexthash="2554877" %)
1634 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1635
1636 (% _msthash="506125" _msttexthash="771849" %)
1637 AT+RPL:  Get or set response level
1638
1639 (% _msthash="506126" _msttexthash="1484314" %)
1640 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1641
1642 (% _msthash="506127" _msttexthash="741728" %)
1643 AT+LEAPSEC:  Get or Set Leap Second
1644
1645 (% _msthash="506128" _msttexthash="1694017" %)
1646 AT+SYNCMOD:  Get or Set time synchronization method
1647
1648 (% _msthash="506129" _msttexthash="2235948" %)
1649 AT+SYNCTDC:  Get or set time synchronization interval in day
1650
1651 (% _msthash="506130" _msttexthash="425542" %)
1652 AT+PID:  Get or set the PID
1653
1654
1655 == 6.2 Where to use AT commands and Downlink commands ==
1656
1657 (% _msthash="506131" _msttexthash="14585714" %)
1658 AT commands：
1659
1660 [[image:image-20220620153708-1.png||height="603" width="723"]]
1661
1662 (% _msthash="506132" _msttexthash="337922" %)
1663 Downlink commands:
1664
1665
1666 (% _msthash="506133" _msttexthash="33046" %)
1667 **TTN:**
1668
1669 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1670
1671
1672 (% _msthash="506134" _msttexthash="11113791" %)
1673 **Helium：**
1674
1675 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1676
1677
1678 (% _msthash="506135" _msttexthash="4159844" %)
1679 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1680
1681 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1682
1683 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1684
1685
1686 (% _msthash="506136" _msttexthash="39286" %)
1687 **Aws:**
1688
1689 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1690
1691
1692
1693 == 6.3 How to change the uplink interval？ ==
1694
1695 [[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"]]
1696
1697
1698
1699 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1700
1701 [[image:image-20220615153355-1.png]]
1702
1703 [[image:1655802313617-381.png]]
1704
1705
1706 (((
1707 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.
1708 )))
1709
1710
1711 Input password and ATZ to activate LHT65N,As shown below:
1712
1713 [[image:image-20220615154519-3.png||height="672" width="807"]]
1714
1715
1716
1717 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1718
1719
1720 [[image:image-20220615153355-1.png]]
1721
1722
1723 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1724
1725 [[image:image-20220615170542-5.png]]
1726
1727
1728 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1729
1730 (% _msthash="506146" _msttexthash="52173160" %)
1731 First connect the four lines；(% style="display:none" %)
1732
1733 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1734
1735
1736 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1737
1738 [[image:image-20220621170938-2.png]]
1739
1740
1741 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1742
1743 [[image:image-20220615171334-6.png]]
1744
1745
1746 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1747
1748
1749 When this interface appears, it indicates that the download has been completed.
1750
1751 [[image:image-20220620160723-8.png]]
1752
1753
1754 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1755
1756
1757 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1758
1759 [[image:image-20220623110706-1.png]]
1760
1761
1762 [[image:image-20220623112117-4.png||height="459" width="343"]]
1763
1764 (((
1765 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.
1766 )))
1767
1768
1769 Input password and ATZ to activate LHT65N,As shown below:
1770
1771 [[image:image-20220615154519-3.png||height="672" width="807"]]
1772
1773
1774 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1775
1776 [[image:image-20220623110706-1.png]]
1777
1778 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1779
1780 [[image:image-20220615170542-5.png]]
1781
1782
1783 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1784
1785 (% _msthash="506146" _msttexthash="52173160" %)
1786 First connect the four lines；
1787
1788 (% _msthash="506146" _msttexthash="52173160" %)
1789 [[image:image-20220623113959-5.png||height="528" width="397"]]
1790
1791 (% _msthash="506146" _msttexthash="52173160" %)
1792 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1793
1794 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1795
1796 [[image:image-20220615171334-6.png]]
1797
1798
1799 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1800
1801
1802 When this interface appears, it indicates that the download has been completed.
1803
1804 [[image:image-20220620160723-8.png]]
1805
1806
1807 Finally,restart reset device again
1808
1809
1810 = 7. Order Info =
1811
1812
1813 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1814
1815 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1816
1817 (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1818
1819 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1820
1821 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1822
1823 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1824
1825 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1826
1827 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1828
1829 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1830
1831 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1832
1833 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1834
1835 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1836
1837 = 8. Packing Info =
1838
1839
1840 **Package Includes**:
1841
1842 * LHT65N Temperature & Humidity Sensor x 1
1843 * Optional external sensor
1844
1845 **Dimension and weight**:
1846
1847 * Device Size:  10 x 10 x 3.5 cm
1848 * Device Weight: 120.5g
1849
1850 = 9. Reference material =
1851
1852 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1853
1854 = 10. FCC Warning =
1855
1856 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1857
1858 (1) This device may not cause harmful interference；
1859
1860 (2) this device must accept any interference received, including interference that may cause undesired operation.