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Version 189.4 by Xiaoling on 2022/07/22 10:34
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9 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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11 {{toc/}}
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15
16
17 = 1. Introduction =
18
19 == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20
21
22 (((
23 The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 )))
25
26 (((
27 The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
28 )))
29
30 (((
31 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 )))
33
34 (((
35 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 )))
37
38 (((
39 LHT65N supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
40 )))
41
42 (((
43 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 )))
45
46
47 == 1.2 Features ==
48
49 * Wall mountable
50 * LoRaWAN v1.0.3 Class A protocol
51 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
52 * AT Commands to change parameters
53 * Remote configure parameters via LoRaWAN Downlink
54 * Firmware upgradeable via program port
55 * Built-in 2400mAh battery for up to 10 years of use.
56 * Built-in Temperature & Humidity sensor
57 * Optional External Sensors
58 * Tri-color LED to indicate working status
59 * Datalog feature
60
61 == 1.3 Specification ==
62
63
64 **Built-in Temperature Sensor:**
65
66 * Resolution: 0.01 °C
67 * Accuracy Tolerance : Typ ±0.3 °C
68 * Long Term Drift: < 0.02 °C/yr
69 * Operating Range: -40 ~~ 85 °C
70
71 **Built-in Humidity Sensor:**
72
73 * Resolution: 0.04 %RH
74 * Accuracy Tolerance : Typ ±3 %RH
75 * Long Term Drift: < 0.02 °C/yr
76 * Operating Range: 0 ~~ 96 %RH
77
78 **External Temperature Sensor:**
79
80 * Resolution: 0.0625 °C
81 * ±0.5°C accuracy from -10°C to +85°C
82 * ±2°C accuracy from -55°C to +125°C
83 * Operating Range: -55 °C ~~ 125 °C
84
85 = 2. Connect LHT65N to IoT Server =
86
87 == 2.1 How does LHT65N work? ==
88
89 (((
90 LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N.
91 )))
92
93 (((
94 If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes.
95 )))
96
97
98 == 2.2 How to Activate LHT65N? ==
99
100 (((
101 The LHT65N has two working modes:
102 )))
103
104 * (((
105 (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
106 )))
107 * (((
108 (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
109 )))
110
111 (((
112 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
113 )))
114
115
116 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
117
118 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
119
120
121
122 == 2.3 Example to join LoRaWAN network ==
123
124 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
125 This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure.
126
127 (% _mstvisible="1" class="wikigeneratedid" %)
128 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
129
130
131 (((
132 Assume the LPS8N is already set to connect to [[TTN V3 network>>url:https://eu1.cloud.thethings.network||_mstvisible="2"]], So it provides network coverage for LHT65N. Next we need to add the LHT65N device in TTN V3:
133 )))
134
135
136
137 === 2.3.1 Step 1: Create Device n TTN ===
138
139 (((
140 Create a device in TTN V3 with the OTAA keys from LHT65N.
141 )))
142
143 (((
144 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
145 )))
146
147 [[image:image-20220617150003-1.jpeg]]
148
149 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
150
151 Add APP EUI in the application.
152
153
154 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
155
156
157 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
158
159
160 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
161
162
163
164 (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
165
166
167 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
168
169
170 Input APP EUI,  APP KEY and DEV EUI:
171
172
173 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
174
175
176
177
178 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
179
180 (((
181 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.
182 )))
183
184 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
185
186
187
188
189 == 2.4 Uplink Payload ==
190
191 (((
192 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.
193 )))
194
195 (((
196 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
197 )))
198
199 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
200 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
201 (((
202 (% _mstvisible="6" %)
203 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
204 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
205 (((
206 (% _mstvisible="6" %)
207 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
208 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
209 (((
210 (% _mstvisible="6" %)
211 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
212 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
213 (((
214 (% _mstvisible="6" %)
215 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
216 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
217 (((
218 (% _mstvisible="6" %)
219 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
220 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
221 (((
222 (% _mstvisible="6" %)
223 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
224 )))
225 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
226 (((
227 (% _mstvisible="6" %)
228 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
229 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
230 (((
231 (% _mstvisible="6" %)
232 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
233 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
234 (((
235 (% _mstvisible="6" %)
236 (((
237 (% _mstvisible="7" %)
238 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
239 )))
240 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
241 (((
242 (% _mstvisible="6" %)
243 (((
244 (% _mstvisible="7" %)
245 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
246 )))
247
248 (% _mstvisible="6" %)
249 (((
250 (% _mstvisible="7" %)
251 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
252 )))
253 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
254 (((
255 (% _mstvisible="6" %)
256 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
257 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
258 (((
259 (% _mstvisible="6" %)
260 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
261 )))
262
263 * The First 6 bytes: has fix meanings for every LHT65N.
264 * The 7th byte (EXT #): defines the external sensor model.
265 * 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.)
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 === 2.4.3 Built-in Temperature ===
302
303 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
304
305 * Temperature:  0x0ABB/100=27.47℃
306
307 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
308
309 * Temperature:  (0xF5C6-65536)/100=-26.18℃
310
311
312
313 === 2.4.4 Built-in Humidity ===
314
315 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
316
317 * Humidity:    0x025C/10=60.4%
318
319
320
321 === 2.4.5 Ext # ===
322
323 Bytes for External Sensor:
324
325 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
326
327
328
329 === 2.4.6 Ext value ===
330
331 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
332
333
334 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
335
336
337 * DS18B20 temp=0x0ADD/100=27.81℃
338
339 The last 2 bytes of data are meaningless
340
341 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
342
343
344 * External temperature= (0xF54F-65536)/100=-27.37℃
345
346 The last 2 bytes of data are meaningless
347
348 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
349
350
351
352 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
353
354 (((
355 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:
356 )))
357
358 (((
359
360 )))
361
362 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
363 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
364 (((
365 (% _mstvisible="6" %)
366 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
367 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
368 (((
369 (% _mstvisible="6" %)
370 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
371 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
372 (((
373 (% _mstvisible="6" %)
374 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
375 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
376 (((
377 (% _mstvisible="6" %)
378 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
379 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
380 (((
381 (% _mstvisible="6" %)
382 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
383 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
384 (((
385 (% _mstvisible="6" %)
386 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
387 )))
388 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
389 (((
390 (% _mstvisible="6" %)
391 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
392 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
393 (((
394 (% _mstvisible="6" %)
395 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
396 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
397 (((
398 (% _mstvisible="6" %)
399 (((
400 (% _mstvisible="7" %)
401 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
402 )))
403
404 (% _mstvisible="6" %)
405 (((
406 (% _mstvisible="7" %)
407 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
408 )))
409 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
410 (((
411 (% _mstvisible="6" %)
412 (((
413 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
414 BAT Status &
415 )))
416
417 (% _mstvisible="6" %)
418 (((
419 (% _mstvisible="7" %)
420 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
421 )))
422 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
423 (((
424 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
425 Status & Ext
426 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
427 (((
428 (% _mstvisible="6" %)
429 (((
430 (% _mstvisible="7" %)
431 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
432 )))
433 )))
434
435 (% _mstvisible="1" %)
436 * (% _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**
437
438 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
439 (% _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]
440 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
441 (((
442 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
443 BAT Status
444
445 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
446 00(b): Ultra Low ( BAT <= 2.50v)
447
448 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
449 01(b): Low  (2.50v <=BAT <= 2.55v)
450
451 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
452 10(b): OK   (2.55v <= BAT <=2.65v)
453
454 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
455 11(b): Good   (BAT >= 2.65v)
456 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
457 (((
458 (% _mstvisible="6" %)
459 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
460
461 (% _mstvisible="6" %)
462
463 )))
464
465 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
466
467 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
468 |(% 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]**
469 |(% 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)
470
471 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
472 * (% 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.
473 * (% 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)
474
475
476 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
477
478 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
479
480 be used to power the external ADC sensor; user can control the power on time for this
481
482 sensor by setting:
483
484 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
485
486 For example:
487
488 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
489
490
491 Or use **downlink command A2** to set the same.
492
493 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
494
495 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.
496
497 [[image:image-20220628150112-1.png||height="241" width="285"]]
498
499
500 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
501
502 [[image:image-20220628150714-4.png]]
503
504
505 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.
506
507 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
508
509 [[image:image-20220628151005-5.png]]
510
511
512 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
513
514 [[image:image-20220628151056-6.png]]
515
516
517 3) Within range
518
519 [[image:image-20220628151143-7.png]]
520
521
522
523 == 2.5 Show data on Datacake ==
524
525 (((
526 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:
527 )))
528
529 (((
530
531 )))
532
533 (((
534 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
535 )))
536
537 (((
538 (% 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.
539 )))
540
541 (((
542
543 )))
544
545 (((
546 Add Datacake:
547 )))
548
549
550 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
551
552
553
554 Select default key as Access Key:
555
556
557 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
558
559
560 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
561
562
563 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
564
565
566 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
567
568
569
570 == 2.6 Datalog Feature ==
571
572 (((
573 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.
574 )))
575
576
577
578 === 2.6.1 Ways to get datalog via LoRaWAN ===
579
580 There are two methods:
581
582 1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range.
583 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.
584
585 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
586
587 [[image:image-20220703111700-2.png||height="381" width="1119"]]
588
589
590 === 2.6.2 Unix TimeStamp ===
591
592
593 LHT65N uses Unix TimeStamp format based on
594
595
596 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
597
598
599
600 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
601
602 Below is the converter example
603
604 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
605
606 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
607
608
609
610 === 2.6.3 Set Device Time ===
611
612 (((
613 There are two ways to set device's time:
614 )))
615
616 (((
617 **~1. Through LoRaWAN MAC Command (Default settings)**
618 )))
619
620 (((
621 User need to set SYNCMOD=1 to enable sync time via MAC command.
622 )))
623
624 (((
625 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).
626 )))
627
628 (((
629 (% 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.
630 )))
631
632 (((
633
634 )))
635
636 (((
637 **2. Manually Set Time**
638 )))
639
640 (((
641 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
642 )))
643
644
645
646 === 2.6.4 Poll sensor value ===
647
648 User can poll sensor value based on timestamps from the server. Below is the downlink command.
649
650 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
651
652
653 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.
654
655 For example, downlink command **31 5FC5F350 5FC6 0160 05**
656
657 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
658
659 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
660
661
662
663 === 2.6.5 Datalog Uplink payload ===
664
665 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
666 The Datalog poll reply uplink will use below payload format.
667
668 (% _mstvisible="1" %)
669 (((
670 (% _mstvisible="2" %)
671 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
672 )))
673
674 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
675 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
676 (((
677 (% _mstvisible="6" %)
678 (((
679 (% _mstvisible="7" %)
680 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
681 )))
682 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
683 (((
684 (% _mstvisible="6" %)
685 (((
686 (% _mstvisible="7" %)
687 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
688 )))
689 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
690 (((
691 (% _mstvisible="6" %)
692 (((
693 (% _mstvisible="7" %)
694 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
695 )))
696 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
697 (((
698 (% _mstvisible="6" %)
699 (((
700 (% _mstvisible="7" %)
701 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
702 )))
703 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
704 (((
705 (% _mstvisible="6" %)
706 (((
707 (% _mstvisible="7" %)
708 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
709 )))
710 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
711 (((
712 (% _mstvisible="6" %)
713 (((
714 (% _mstvisible="7" %)
715 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
716 )))
717 )))
718 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
719 (((
720 (% _mstvisible="6" %)
721 (((
722 (% _mstvisible="7" %)
723 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
724 )))
725 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
726 (((
727 (% _mstvisible="6" %)
728 (((
729 (% _mstvisible="7" %)
730 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
731 )))
732 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
733 (((
734 (% _mstvisible="6" %)
735 (((
736 (% _mstvisible="7" %)
737 (((
738 (% _mstvisible="8" %)
739 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
740 )))
741 )))
742
743 (% _mstvisible="6" %)
744 (((
745 (% _mstvisible="7" %)
746 (((
747 (% _mstvisible="8" %)
748 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
749 )))
750 )))
751 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
752 (((
753 (% _mstvisible="6" %)
754 (((
755 (% _mstvisible="7" %)
756 (((
757 (% _mstvisible="8" %)
758 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
759 )))
760 )))
761
762 (% _mstvisible="6" %)
763 (((
764 (% _mstvisible="7" %)
765 (((
766 (% _mstvisible="8" %)
767 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
768 )))
769 )))
770 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
771 (((
772 (% _mstvisible="6" %)
773 (((
774 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
775 Poll message flag & Ext
776 )))
777 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
778 (((
779 (% _mstvisible="6" %)
780 (((
781 (% _mstvisible="7" %)
782 (((
783 (% _mstvisible="8" %)
784 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
785 )))
786 )))
787
788 (% _mstvisible="6" %)
789 (((
790 (% _mstvisible="7" %)
791 (((
792 (% _mstvisible="8" %)
793
794 )))
795 )))
796 )))
797
798 (% _mstvisible="1" %)
799 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
800
801 (% _mstvisible="1" %)
802 [[image:image-20220523152208-14.png||_mstalt="452920" _mstvisible="3"]]
803
804 (% _mstvisible="1" %)
805 (((
806 (% _mstvisible="2" %)
807 (((
808 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
809 (((
810 Poll Message Flag: 1: This message is a poll message reply.
811 )))
812 )))
813 )))
814
815 (% _mstvisible="1" %)
816 * (% _mstvisible="3" %)
817 (((
818 (% _mstvisible="4" %)
819 (((
820 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
821 (((
822 Poll Message Flag is set to 1.
823 )))
824 )))
825 )))
826 * (% _mstvisible="3" %)
827 (((
828 (% _mstvisible="4" %)
829 (((
830 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
831 (((
832 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
833 )))
834 )))
835 )))
836
837 (% _mstvisible="1" %)
838 (((
839 (% _mstvisible="2" %)
840 (((
841 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
842 (((
843
844 )))
845
846 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
847 (((
848 For example, in US915 band, the max payload for different DR is:
849 )))
850 )))
851 )))
852
853 (% _mstvisible="1" %)
854 (((
855 (% _mstvisible="2" %)
856 (((
857 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
858 (((
859 a) DR0: max is 11 bytes so one entry of data
860 )))
861 )))
862 )))
863
864 (% _mstvisible="1" %)
865 (((
866 (% _mstvisible="2" %)
867 (((
868 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
869 (((
870 b) DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
871 )))
872 )))
873 )))
874
875 (% _mstvisible="1" %)
876 (((
877 (% _mstvisible="2" %)
878 (((
879 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
880 (((
881 c) DR2: total payload includes 11 entries of data
882 )))
883 )))
884 )))
885
886 (% _mstvisible="1" %)
887 (((
888 (% _mstvisible="2" %)
889 (((
890 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
891 (((
892 d) DR3: total payload includes 22 entries of data.
893 )))
894 )))
895 )))
896
897 (% _mstvisible="1" %)
898 (((
899 (% _mstvisible="2" %)
900 (((
901 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
902 (((
903 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
904 )))
905 )))
906 )))
907
908
909 (% _mstvisible="1" style="text-align: left;" %)
910 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
911
912 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
913 If LHT65N has below data inside Flash:
914
915 (% _mstvisible="1" %)
916 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
917
918 (% _mstvisible="1" %)
919 (((
920 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
921 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
922 )))
923
924 (% _mstvisible="1" %)
925 (((
926 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
927 Where : Start time: 60065F97 = time 21/1/19 04:27:03
928 )))
929
930 (% _mstvisible="1" %)
931 (((
932 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
933 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
934 )))
935
936 (% _mstvisible="1" %)
937 (((
938 (% _mstvisible="2" %)
939
940 )))
941
942 (% _mstvisible="1" %)
943 (((
944 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
945 LHT65N will uplink this payload.
946 )))
947
948 (% _mstvisible="1" %)
949 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
950
951 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
952 (((
953 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
954 )))
955
956 (% _msthash="315237" _msttexthash="1385839" %)
957 (((
958 Where the first 11 bytes is for the first entry:
959 )))
960
961 (% _msthash="315238" _msttexthash="274846" %)
962 (((
963 7FFF089801464160065F97
964 )))
965
966 (% _msthash="315239" _msttexthash="617435" %)
967 (((
968 Ext sensor data=0x7FFF/100=327.67
969 )))
970
971 (% _msthash="315240" _msttexthash="270543" %)
972 (((
973 Temp=0x0898/100=22.00
974 )))
975
976 (% _msthash="315241" _msttexthash="211783" %)
977 (((
978 Hum=0x0146/10=32.6
979 )))
980
981 (% _msthash="315242" _msttexthash="1569776" %)
982 (((
983 poll message flag & Ext=0x41,means reply data,Ext=1
984 )))
985
986 (% _msthash="315243" _msttexthash="1120509" %)
987 (((
988 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
989 )))
990
991
992
993 == 2.7 Alarm Mode ==
994
995 (((
996 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.
997 )))
998
999 (((
1000 (% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.
1001 )))
1002
1003 (((
1004 **AT COMMAND FOR ALARM MODE:**
1005 )))
1006
1007 (% _mstvisible="1" class="box infomessage" %)
1008 (((
1009 (((
1010 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled)
1011 )))
1012
1013 (((
1014 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1015 )))
1016
1017 (((
1018 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1019 )))
1020
1021 (((
1022 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1023 )))
1024
1025 (((
1026 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1027 )))
1028 )))
1029
1030 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1031
1032 Total bytes: 8 bytes
1033
1034 **Example:**AA0100010001003C
1035
1036 WMOD=01
1037
1038 CITEMP=0001
1039
1040 TEMPlow=0001
1041
1042 TEMPhigh=003C
1043
1044
1045 == 2.8 LED Indicator ==
1046
1047 The LHT65 has a triple color LED which for easy showing different stage .
1048
1049 While user press ACT button, the LED will work as per LED status with ACT button.
1050
1051 In a normal working state:
1052
1053 * For each uplink, the BLUE LED or RED LED will blink once.
1054 BLUE LED when external sensor is connected.
1055 * RED LED when external sensor is not connected
1056 * For each success downlink, the PURPLE LED will blink once
1057
1058 == 2.9 installation ==
1059
1060 (% _mstvisible="1" %)
1061 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1062
1063
1064
1065 = 3. Sensors and Accessories =
1066
1067 == 3.1 E2 Extension Cable ==
1068
1069 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1070
1071 **1m long breakout cable for LHT65N. Features:**
1072
1073 * (((
1074 Use for AT Command， works for both LHT52/LHT65N
1075 )))
1076 * (((
1077 Update firmware for LHT65N, works for both LHT52/LHT65N
1078 )))
1079 * (((
1080 Supports ADC mode to monitor external ADC
1081 )))
1082 * (((
1083 Supports Interrupt mode
1084 )))
1085 * (((
1086 Exposed All pins from the LHT65N Type-C connector.
1087 )))
1088
1089 [[image:image-20220619092421-3.png||height="371" width="529"]]
1090
1091
1092
1093
1094 == 3.2 E3 Temperature Probe ==
1095
1096
1097 [[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"]]
1098
1099
1100 Temperature sensor with 2 meters cable long
1101
1102 * Resolution: 0.0625 °C
1103 * ±0.5°C accuracy from -10°C to +85°C
1104 * ±2°C accuracy from -55°C to +125°C
1105 * Operating Range: -40 ~~ 125 °C
1106 * Working voltage 2.35v ~~ 5v
1107
1108 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1109
1110 (((
1111 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1112 )))
1113
1114 * (((
1115 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1116 )))
1117
1118 * (((
1119 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1120 )))
1121
1122 (((
1123 There are two kinds of commands to configure LHT65N, they are:
1124 )))
1125
1126 * (((
1127 (% style="color:#4f81bd" %)**General Commands**.
1128 )))
1129
1130 (((
1131 These commands are to configure:
1132 )))
1133
1134 1. (((
1135 General system settings like: uplink interval.
1136 )))
1137 1. (((
1138 LoRaWAN protocol & radio-related commands.
1139 )))
1140
1141 (((
1142 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]]
1143 )))
1144
1145 * (((
1146 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1147 )))
1148
1149 (((
1150 These commands are only valid for LHT65N, as below:
1151 )))
1152
1153
1154 == 4.1 Set Transmit Interval Time ==
1155
1156 Feature: Change LoRaWAN End Node Transmit Interval.
1157
1158 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1159
1160 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1161
1162
1163 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1164
1165 Format: Command Code (0x01) followed by 3 bytes time value.
1166
1167 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1168
1169 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1170
1171 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1172
1173 == 4.2 Set External Sensor Mode ==
1174
1175 Feature: Change External Sensor Mode.
1176
1177 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1178
1179 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1180
1181
1182 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1183
1184 Total bytes: 2 ~~ 5 bytes
1185
1186 **Example:**
1187
1188 * 0xA201: Set external sensor type to E1
1189
1190 * 0xA209: Same as AT+EXT=9
1191
1192 * 0xA20702003c: Same as AT+SETCNT=60
1193
1194 == 4.3 Enable/Disable uplink Temperature probe ID ==
1195
1196 (((
1197 Feature: If PID is enabled, device will send the temperature probe ID on:
1198 )))
1199
1200 * (((
1201 First Packet after OTAA Join
1202 )))
1203 * (((
1204 Every 24 hours since the first packet.
1205 )))
1206
1207 (((
1208 PID is default set to disable (0)
1209 )))
1210
1211 (% style="color:#4f81bd" %)**AT Command:**
1212
1213 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1214
1215
1216 (% style="color:#4f81bd" %)**Downlink Command:**
1217
1218 * **0xA800**  **~-~->** AT+PID=0
1219 * **0xA801**     **~-~->** AT+PID=1
1220
1221 == 4.4 Set Password ==
1222
1223 Feature: Set device password, max 9 digits
1224
1225 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1226
1227 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1228
1229
1230 (% style="color:#4f81bd" %)**Downlink Command:**
1231
1232 No downlink command for this feature.
1233
1234
1235
1236 == 4.5 Quit AT Command ==
1237
1238 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1239
1240 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1241
1242 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1243
1244
1245 (% style="color:#4f81bd" %)**Downlink Command:**
1246
1247 No downlink command for this feature.
1248
1249
1250
1251 == 4.6 Set to sleep mode ==
1252
1253 Feature: Set device to sleep mode
1254
1255 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1256 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1257
1258 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1259
1260 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1261
1262
1263 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1264
1265 * There is no downlink command to set to Sleep mode.
1266
1267 == 4.7 Set system time ==
1268
1269 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1270
1271 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1272
1273 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1274
1275
1276 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1277
1278 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1279
1280
1281
1282 == 4.8 Set Time Sync Mode ==
1283
1284 (((
1285 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1286 )))
1287
1288 (((
1289 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.
1290 )))
1291
1292 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1293
1294 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1295
1296
1297 (% style="color:#4f81bd" %)**Downlink Command:**
1298
1299 0x28 01 ~/~/ Same As AT+SYNCMOD=1
1300 0x28 00 ~/~/ Same As AT+SYNCMOD=0
1301
1302
1303
1304 == 4.9 Set Time Sync Interval ==
1305
1306 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1307
1308 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1309
1310 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1311
1312
1313 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1314
1315 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A
1316
1317
1318
1319 == 4.10 Print data entries base on page. ==
1320
1321 Feature: Print the sector data from start page to stop page (max is 416 pages).
1322
1323 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1324
1325 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1326
1327
1328 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1329
1330 No downlink commands for feature
1331
1332
1333
1334 == 4.11 Print last few data entries. ==
1335
1336 Feature: Print the last few data entries
1337
1338 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1339
1340 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1341
1342
1343 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1344
1345 No downlink commands for feature
1346
1347
1348
1349 == 4.12 Clear Flash Record ==
1350
1351 Feature: Clear flash storage for data log feature.
1352
1353
1354 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1355
1356 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1357
1358
1359 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1360
1361 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1362
1363 == 4.13 Auto Send None-ACK messages ==
1364
1365 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1366 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.
1367
1368 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1369
1370 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1371 The default factory setting is 0
1372
1373 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1374 (% _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**
1375 (% _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
1376
1377 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1378
1379 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1380
1381 = 5. Battery & How to replace =
1382
1383 == 5.1 Battery Type ==
1384
1385 (((
1386 (((
1387 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.
1388 )))
1389 )))
1390
1391 (((
1392
1393 )))
1394
1395 (((
1396 (((
1397 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1398 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1399 )))
1400 )))
1401
1402 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1403
1404
1405 == 5.2 Replace Battery ==
1406
1407 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.
1408
1409 [[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"]]
1410
1411
1412 == 5.3 Battery Life Analyze ==
1413
1414 (((
1415 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:
1416 [[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]]
1417 )))
1418
1419 (((
1420
1421 )))
1422
1423 (((
1424 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]]
1425 )))
1426
1427
1428
1429 = 6. FAQ =
1430
1431 == 6.1 How to use AT Command? ==
1432
1433 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.
1434
1435 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1436
1437
1438 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1439
1440 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1441 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1442 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1443 * (% style="background-color:yellow" %)**USB to TTL 3.3V <~-~-> D-**
1444
1445 (((
1446 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.
1447 )))
1448
1449
1450 Input password and ATZ to activate LHT65N,As shown below:
1451
1452 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1453
1454
1455 (% _msthash="506066" _msttexthash="544869" %)
1456 AT Command List is as below:
1457
1458 (% _msthash="506067" _msttexthash="361920" %)
1459 AT+<CMD>? :  Help on <CMD>
1460
1461 (% _msthash="506068" _msttexthash="243061" %)
1462 AT+<CMD> :  Run <CMD>
1463
1464 (% _msthash="506069" _msttexthash="704197" %)
1465 AT+<CMD>=<value> :  Set the value
1466
1467 (% _msthash="506070" _msttexthash="455676" %)
1468 AT+<CMD>=? :  Get the value
1469
1470 (% _msthash="506071" _msttexthash="670553" %)
1471 AT+DEBUG:  Set more info output
1472
1473 (% _msthash="506072" _msttexthash="485888" %)
1474 ATZ:  Trig a reset of the MCU
1475
1476 (% _msthash="506073" _msttexthash="2068872" %)
1477 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1478
1479 (% _msthash="506074" _msttexthash="689169" %)
1480 AT+DEUI:  Get or Set the Device EUI
1481
1482 (% _msthash="506075" _msttexthash="960414" %)
1483 AT+DADDR:  Get or Set the Device Address
1484
1485 (% _msthash="506076" _msttexthash="1079897" %)
1486 AT+APPKEY:  Get or Set the Application Key
1487
1488 (% _msthash="506077" _msttexthash="1326143" %)
1489 AT+NWKSKEY:  Get or Set the Network Session Key
1490
1491 (% _msthash="506078" _msttexthash="1573000" %)
1492 AT+APPSKEY:  Get or Set the Application Session Key
1493
1494 (% _msthash="506079" _msttexthash="1041729" %)
1495 AT+APPEUI:  Get or Set the Application EUI
1496
1497 (% _msthash="506080" _msttexthash="2104206" %)
1498 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1499
1500 (% _msthash="506081" _msttexthash="3369288" %)
1501 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1502
1503 (% _msthash="506082" _msttexthash="1894529" %)
1504 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1505
1506 (% _msthash="506083" _msttexthash="3864172" %)
1507 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1508
1509 (% _msthash="506084" _msttexthash="1712204" %)
1510 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1511
1512 (% _msthash="506085" _msttexthash="1281202" %)
1513 AT+RX2FQ:  Get or Set the Rx2 window frequency
1514
1515 (% _msthash="506086" _msttexthash="2796781" %)
1516 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1517
1518 (% _msthash="506087" _msttexthash="3285165" %)
1519 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1520
1521 (% _msthash="506088" _msttexthash="3286179" %)
1522 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1523
1524 (% _msthash="506089" _msttexthash="4703803" %)
1525 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1526
1527 (% _msthash="506090" _msttexthash="4704999" %)
1528 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1529
1530 (% _msthash="506091" _msttexthash="1528683" %)
1531 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1532
1533 (% _msthash="506092" _msttexthash="757185" %)
1534 AT+NWKID:  Get or Set the Network ID
1535
1536 (% _msthash="506093" _msttexthash="1156597" %)
1537 AT+FCU:  Get or Set the Frame Counter Uplink
1538
1539 (% _msthash="506094" _msttexthash="1273987" %)
1540 AT+FCD:  Get or Set the Frame Counter Downlink
1541
1542 (% _msthash="506095" _msttexthash="859222" %)
1543 AT+CLASS:  Get or Set the Device Class
1544
1545 (% _msthash="506096" _msttexthash="384852" %)
1546 AT+JOIN:  Join network
1547
1548 (% _msthash="506097" _msttexthash="548626" %)
1549 AT+NJS:  Get the join status
1550
1551 (% _msthash="506098" _msttexthash="2546206" %)
1552 AT+SENDB:  Send hexadecimal data along with the application port
1553
1554 (% _msthash="506099" _msttexthash="1932307" %)
1555 AT+SEND:  Send text data along with the application port
1556
1557 (% _msthash="506100" _msttexthash="3560557" %)
1558 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1559
1560 (% _msthash="506101" _msttexthash="1429701" %)
1561 AT+RECV:  Print last received data in raw format
1562
1563 (% _msthash="506102" _msttexthash="1735981" %)
1564 AT+VER:  Get current image version and Frequency Band
1565
1566 (% _msthash="506103" _msttexthash="1189474" %)
1567 AT+CFM:  Get or Set the confirmation mode (0-1)
1568
1569 (% _msthash="506104" _msttexthash="1718210" %)
1570 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1571
1572 (% _msthash="506105" _msttexthash="1339403" %)
1573 AT+SNR:  Get the SNR of the last received packet
1574
1575 (% _msthash="506106" _msttexthash="1452009" %)
1576 AT+RSSI:  Get the RSSI of the last received packet
1577
1578 (% _msthash="506107" _msttexthash="2768142" %)
1579 AT+TDC:  Get or set the application data transmission interval in ms
1580
1581 (% _msthash="506108" _msttexthash="1083914" %)
1582 AT+PORT:  Get or set the application port
1583
1584 (% _msthash="506109" _msttexthash="622440" %)
1585 AT+DISAT:  Disable AT commands
1586
1587 (% _msthash="506110" _msttexthash="868361" %)
1588 AT+PWORD: Set password, max 9 digits
1589
1590 (% _msthash="506111" _msttexthash="2210299" %)
1591 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1592
1593 (% _msthash="506112" _msttexthash="2113462" %)
1594 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1595
1596 (% _msthash="506113" _msttexthash="2087423" %)
1597 AT+PDTA:  Print the sector data from start page to stop page
1598
1599 (% _msthash="506114" _msttexthash="1063127" %)
1600 AT+PLDTA:  Print the last few sets of data
1601
1602 (% _msthash="506115" _msttexthash="1999426" %)
1603 AT+CLRDTA:  Clear the storage, record position back to 1st
1604
1605 (% _msthash="506116" _msttexthash="442130" %)
1606 AT+SLEEP:  Set sleep mode
1607
1608 (% _msthash="506117" _msttexthash="1080222" %)
1609 AT+EXT:  Get or Set external sensor model
1610
1611 (% _msthash="506118" _msttexthash="1309490" %)
1612 AT+BAT:  Get the current battery voltage in mV
1613
1614 (% _msthash="506119" _msttexthash="813891" %)
1615 AT+CFG:  Print all configurations
1616
1617 (% _msthash="506120" _msttexthash="551707" %)
1618 AT+WMOD:  Get or Set Work Mode
1619
1620 (% _msthash="506121" _msttexthash="2631499" %)
1621 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1622
1623 (% _msthash="506122" _msttexthash="3907150" %)
1624 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1625
1626 (% _msthash="506123" _msttexthash="854620" %)
1627 AT+SETCNT:  Set the count at present
1628
1629 (% _msthash="506124" _msttexthash="2554877" %)
1630 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1631
1632 (% _msthash="506125" _msttexthash="771849" %)
1633 AT+RPL:  Get or set response level
1634
1635 (% _msthash="506126" _msttexthash="1484314" %)
1636 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1637
1638 (% _msthash="506127" _msttexthash="741728" %)
1639 AT+LEAPSEC:  Get or Set Leap Second
1640
1641 (% _msthash="506128" _msttexthash="1694017" %)
1642 AT+SYNCMOD:  Get or Set time synchronization method
1643
1644 (% _msthash="506129" _msttexthash="2235948" %)
1645 AT+SYNCTDC:  Get or set time synchronization interval in day
1646
1647 (% _msthash="506130" _msttexthash="425542" %)
1648 AT+PID:  Get or set the PID
1649
1650
1651 == 6.2 Where to use AT commands and Downlink commands ==
1652
1653 (% _msthash="506131" _msttexthash="14585714" %)
1654 AT commands：
1655
1656 [[image:image-20220620153708-1.png||height="603" width="723"]]
1657
1658 (% _msthash="506132" _msttexthash="337922" %)
1659 Downlink commands:
1660
1661
1662 (% _msthash="506133" _msttexthash="33046" %)
1663 **TTN:**
1664
1665 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1666
1667
1668 (% _msthash="506134" _msttexthash="11113791" %)
1669 **Helium：**
1670
1671 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1672
1673
1674 (% _msthash="506135" _msttexthash="4159844" %)
1675 **Chirpstack:The downlink window will not be displayed until the network is accessed**
1676
1677 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1678
1679 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1680
1681
1682 (% _msthash="506136" _msttexthash="39286" %)
1683 **Aws:**
1684
1685 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1686
1687
1688
1689 == 6.3 How to change the uplink interval？ ==
1690
1691 [[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"]]
1692
1693
1694
1695 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1696
1697 [[image:image-20220615153355-1.png]]
1698
1699 [[image:1655802313617-381.png]]
1700
1701
1702 (((
1703 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.
1704 )))
1705
1706
1707 Input password and ATZ to activate LHT65N,As shown below:
1708
1709 [[image:image-20220615154519-3.png||height="672" width="807"]]
1710
1711
1712
1713 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1714
1715
1716 [[image:image-20220615153355-1.png]]
1717
1718
1719 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1720
1721 [[image:image-20220615170542-5.png]]
1722
1723
1724 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1725
1726 (% _msthash="506146" _msttexthash="52173160" %)
1727 First connect the four lines；(% style="display:none" %)
1728
1729 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1730
1731
1732 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1733
1734 [[image:image-20220621170938-2.png]]
1735
1736
1737 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1738
1739 [[image:image-20220615171334-6.png]]
1740
1741
1742 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1743
1744
1745 When this interface appears, it indicates that the download has been completed.
1746
1747 [[image:image-20220620160723-8.png]]
1748
1749
1750 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1751
1752
1753 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1754
1755 [[image:image-20220623110706-1.png]]
1756
1757
1758 [[image:image-20220623112117-4.png||height="459" width="343"]]
1759
1760 (((
1761 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.
1762 )))
1763
1764
1765 Input password and ATZ to activate LHT65N,As shown below:
1766
1767 [[image:image-20220615154519-3.png||height="672" width="807"]]
1768
1769
1770 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1771
1772 [[image:image-20220623110706-1.png]]
1773
1774 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1775
1776 [[image:image-20220615170542-5.png]]
1777
1778
1779 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1780
1781 (% _msthash="506146" _msttexthash="52173160" %)
1782 First connect the four lines；
1783
1784 (% _msthash="506146" _msttexthash="52173160" %)
1785 [[image:image-20220623113959-5.png||height="528" width="397"]]
1786
1787 (% _msthash="506146" _msttexthash="52173160" %)
1788 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1789
1790 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1791
1792 [[image:image-20220615171334-6.png]]
1793
1794
1795 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1796
1797
1798 When this interface appears, it indicates that the download has been completed.
1799
1800 [[image:image-20220620160723-8.png]]
1801
1802
1803 Finally,restart reset device again
1804
1805
1806 = 7. Order Info =
1807
1808
1809 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
1810
1811 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1812
1813 (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1814
1815 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1816
1817 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1818
1819 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1820
1821 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1822
1823 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
1824
1825 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1826
1827 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1828
1829 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1830
1831 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1832
1833 = 8. Packing Info =
1834
1835
1836 **Package Includes**:
1837
1838 * LHT65N Temperature & Humidity Sensor x 1
1839 * Optional external sensor
1840
1841 **Dimension and weight**:
1842
1843 * Device Size:  10 x 10 x 3.5 cm
1844 * Device Weight: 120.5g
1845
1846 = 9. Reference material =
1847
1848 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
1849
1850 = 10. FCC Warning =
1851
1852 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1853
1854 (1) This device may not cause harmful interference；
1855
1856 (2) this device must accept any interference received, including interference that may cause undesired operation.