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Version 210.2 by Xiaoling on 2022/10/18 14:20
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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
20 == 1.1 What is LHT65N Temperature & Humidity Sensor ==
21
22
23 (((
24 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.**
25 )))
26
27 (((
28 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.
29 )))
30
31 (((
32 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
33 )))
34
35 (((
36 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
37 )))
38
39 (((
40 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.
41 )))
42
43 (((
44 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
45 )))
46
47
48
49 == 1.2 Features ==
50
51
52 * Wall mountable
53 * LoRaWAN v1.0.3 Class A protocol
54 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
55 * AT Commands to change parameters
56 * Remote configure parameters via LoRaWAN Downlink
57 * Firmware upgradeable via program port
58 * Built-in 2400mAh battery for up to 10 years of use.
59 * Built-in Temperature & Humidity sensor
60 * Optional External Sensors
61 * Tri-color LED to indicate working status
62 * Datalog feature (Max 3328 records)
63
64
65
66 == 1.3 Specification ==
67
68
69 (% style="color:#037691" %)**Built-in Temperature Sensor:**
70
71 * Resolution: 0.01 °C
72 * Accuracy Tolerance : Typ ±0.3 °C
73 * Long Term Drift: < 0.02 °C/yr
74 * Operating Range: -40 ~~ 85 °C
75
76 (% style="color:#037691" %)**Built-in Humidity Sensor:**
77
78 * Resolution: 0.04 %RH
79 * Accuracy Tolerance : Typ ±3 %RH
80 * Long Term Drift: < 0.02 °C/yr
81 * Operating Range: 0 ~~ 96 %RH
82
83 (% style="color:#037691" %)**External Temperature Sensor:**
84
85 * Resolution: 0.0625 °C
86 * ±0.5°C accuracy from -10°C to +85°C
87 * ±2°C accuracy from -55°C to +125°C
88 * Operating Range: -55 °C ~~ 125 °C
89
90
91
92 = 2. Connect LHT65N to IoT Server =
93
94
95 == 2.1 How does LHT65N work? ==
96
97
98 (((
99 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.
100 )))
101
102 (((
103 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.
104 )))
105
106
107
108 == 2.2 How to Activate LHT65N? ==
109
110
111 (((
112 The LHT65N has two working modes:
113 )))
114
115 * (((
116 (% 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.
117 )))
118 * (((
119 (% 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. 
120 )))
121
122 (((
123 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
124 )))
125
126
127 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
128
129 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
130
131
132
133 == 2.3 Example to join LoRaWAN network ==
134
135
136 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
137 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.
138
139
140 (% _mstvisible="1" class="wikigeneratedid" %)
141 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
142
143
144 (((
145 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:
146 )))
147
148
149
150 === 2.3.1 Step 1: Create Device n TTN ===
151
152
153 (((
154 Create a device in TTN V3 with the OTAA keys from LHT65N.
155 )))
156
157 (((
158 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
159 )))
160
161 [[image:image-20220617150003-1.jpeg]]
162
163 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
164
165 Add APP EUI in the application.
166
167
168 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
169
170
171 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
172
173
174 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
175
176
177
178 (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
179
180
181 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
182
183
184 Input APP EUI,  APP KEY and DEV EUI:
185
186
187 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
188
189
190
191
192 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
193
194
195 (((
196 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.
197 )))
198
199 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
200
201
202
203 == 2.4 Uplink Payload   ( Fport~=2) ==
204
205
206 (((
207 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.
208 )))
209
210 (((
211 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
212 )))
213
214 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
215 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
216 (((
217 (% _mstvisible="6" %)
218 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
219 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
220 (((
221 (% _mstvisible="6" %)
222 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
223 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
224 (((
225 (% _mstvisible="6" %)
226 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
227 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
228 (((
229 (% _mstvisible="6" %)
230 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
231 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
232 (((
233 (% _mstvisible="6" %)
234 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
235 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
236 (((
237 (% _mstvisible="6" %)
238 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
239 )))
240 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
241 (((
242 (% _mstvisible="6" %)
243 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
244 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
245 (((
246 (% _mstvisible="6" %)
247 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
248 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
249 (((
250 (% _mstvisible="6" %)
251 (((
252 (% _mstvisible="7" %)
253 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
254 )))
255 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
256 (((
257 (% _mstvisible="6" %)
258 (((
259 (% _mstvisible="7" %)
260 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
261 )))
262
263 (% _mstvisible="6" %)
264 (((
265 (% _mstvisible="7" %)
266 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
267 )))
268 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
269 (((
270 (% _mstvisible="6" %)
271 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
272 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
273 (((
274 (% _mstvisible="6" %)
275 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
276 )))
277
278 * The First 6 bytes: has fix meanings for every LHT65N.
279 * The 7th byte (EXT #): defines the external sensor model.
280 * 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.)
281
282
283
284 === 2.4.1 Decoder in TTN V3 ===
285
286
287 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.
288
289 Below is the position to put the decoder and LHT65N decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
290
291
292 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
293
294
295
296 === 2.4.2 BAT-Battery Info ===
297
298
299 These two bytes of BAT include the battery state and the actually voltage
300
301 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
302
303
304 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
305
306
307 Check the battery voltage for LHT65N.
308
309 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
310 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
311
312
313
314 === 2.4.3 Built-in Temperature ===
315
316
317 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
318
319 * Temperature:  0x0ABB/100=27.47℃
320
321 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
322
323 * Temperature:  (0xF5C6-65536)/100=-26.18℃
324
325
326
327 === 2.4.4 Built-in Humidity ===
328
329
330 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
331
332 * Humidity:    0x025C/10=60.4%
333
334
335
336 === 2.4.5 Ext # ===
337
338
339 Bytes for External Sensor:
340
341 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
342
343
344
345 === 2.4.6 Ext value ===
346
347
348 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
349
350
351 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
352
353
354 * DS18B20 temp=0x0ADD/100=27.81℃
355
356 The last 2 bytes of data are meaningless
357
358 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
359
360
361 * External temperature= (0xF54F-65536)/100=-27.37℃
362
363 The last 2 bytes of data are meaningless
364
365 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
366
367
368
369 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
370
371
372 (((
373 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:
374 )))
375
376 (((
377
378 )))
379
380 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
381 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
382 (((
383 (% _mstvisible="6" %)
384 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
385 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
386 (((
387 (% _mstvisible="6" %)
388 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
389 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
390 (((
391 (% _mstvisible="6" %)
392 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
393 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
394 (((
395 (% _mstvisible="6" %)
396 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
397 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
398 (((
399 (% _mstvisible="6" %)
400 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
401 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
402 (((
403 (% _mstvisible="6" %)
404 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
405 )))
406 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
407 (((
408 (% _mstvisible="6" %)
409 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
410 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
411 (((
412 (% _mstvisible="6" %)
413 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
414 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
415 (((
416 (% _mstvisible="6" %)
417 (((
418 (% _mstvisible="7" %)
419 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
420 )))
421
422 (% _mstvisible="6" %)
423 (((
424 (% _mstvisible="7" %)
425 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
426 )))
427 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
428 (((
429 (% _mstvisible="6" %)
430 (((
431 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
432 BAT Status &
433 )))
434
435 (% _mstvisible="6" %)
436 (((
437 (% _mstvisible="7" %)
438 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
439 )))
440 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
441 (((
442 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
443 Status & Ext
444 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
445 (((
446 (% _mstvisible="6" %)
447 (((
448 (% _mstvisible="7" %)
449 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
450 )))
451 )))
452
453 (% _mstvisible="1" %)
454 * (% _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**
455
456 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
457 (% _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]
458 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
459 (((
460 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
461 BAT Status
462
463 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
464 00(b): Ultra Low ( BAT <= 2.50v)
465
466 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
467 01(b): Low  (2.50v <=BAT <= 2.55v)
468
469 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
470 10(b): OK   (2.55v <= BAT <=2.65v)
471
472 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
473 11(b): Good   (BAT >= 2.65v)
474 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
475 (((
476 (% _mstvisible="6" %)
477 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
478
479 (% _mstvisible="6" %)
480
481 )))
482
483 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
484
485 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
486 |(% 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]**
487 |(% 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)
488
489 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
490 * (% 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.
491 * (% 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)
492
493
494
495 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
496
497
498 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
499
500 be used to power the external ADC sensor; user can control the power on time for this
501
502 (% style="color:blue" %)**sensor by setting:**
503
504 **AT+EXT=6,timeout**  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
505
506 **For example:**
507
508 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
509
510
511 Or use **downlink command A2** to set the same.
512
513 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
514
515 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.
516
517 [[image:image-20220628150112-1.png||height="241" width="285"]]
518
519
520 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
521
522 [[image:image-20220628150714-4.png]]
523
524
525 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.
526
527
528 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
529
530 [[image:image-20220628151005-5.png]]
531
532
533 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
534
535 [[image:image-20220628151056-6.png]]
536
537
538 3) Within range
539
540 [[image:image-20220628151143-7.png]]
541
542
543
544 ==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
545
546
547 [[image:image-20220927095645-1.png||height="534" width="460"]]
548
549
550 (% style="color:blue" %)**Ext=2,Temperature Sensor(TMP117)：**
551
552 [[image:image-20220906102307-7.png]]
553
554
555 (% style="color:blue" %)**Interrupt Mode and Counting Mode:**
556
557 The external cable NE2 can be use for MOD4 and MOD8
558
559
560
561 ==== 2.4.6.5 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
562
563
564 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
565
566
567 (% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
568
569 (% style="color:#037691" %)**Case 1: Door Sensor.** (%%)3.3v Out for such sensor is just to detect Open/Close.
570
571 In Open State, the power consumption is the same as if there is no probe
572
573 In Close state, the power consumption will be 3uA higher than normal.
574
575 [[image:image-20220906100852-1.png||height="205" width="377"]]
576
577
578 Ext=4,Interrupt Sensor：
579
580 (% border="1.5" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:512px" %)
581 |(% style="width:117px" %)(((
582 AT+EXT=4,1
583 )))|(% style="width:371px" %)(((
584 Sent uplink packet in both rising and falling interrupt
585 )))
586 |(% style="width:117px" %)(((
587 AT+EXT=4,2
588 )))|(% style="width:371px" %)(((
589 Sent uplink packet only in falling interrupt
590 )))
591 |(% style="width:117px" %)(((
592 AT+EXT=4,3
593 )))|(% style="width:371px" %)(((
594 Sent uplink packet only in rising interrupt
595 )))
596
597 Trigger by falling edge:
598
599 [[image:image-20220906101145-2.png]]
600
601
602 Trigger by raising edge：
603
604 [[image:image-20220906101145-3.png]]
605
606
607
608
609 ==== 2.4.6.6 Ext~=8 Counting Mode（Since Firmware v1.3） ====
610
611
612 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
613
614
615 (% style="color:blue" %)**Case 1**(%%):  Low power consumption Flow Sensor, such flow sensor has pulse output and the power consumption in uA level and can be powered by LHT65N.
616
617 [[image:image-20220906101320-4.png||height="366" width="698"]]
618
619
620 (% style="color:blue" %)**Case 2**(%%):  Normal Flow Sensor: Such flow sensor has higher power consumption and is not suitable to be powered by LHT65N. It is powered by external power and output <3.3v pulse
621
622 [[image:image-20220906101320-5.png||height="353" width="696"]]
623
624
625 Ext=8, Counting Sensor ( 4 bytes)：
626
627 (% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:381px" %)
628 |(% style="width:138px" %)(((
629 AT+EXT=8,0
630 )))|(% style="width:240px" %)(((
631 Count at falling interrupt
632 )))
633 |(% style="width:138px" %)(((
634 AT+EXT=8,1
635 )))|(% style="width:240px" %)(((
636 Count at rising interrupt
637 )))
638 |(% style="width:138px" %)(((
639 AT+SETCNT=60
640 )))|(% style="width:240px" %)(((
641 Sent current count to 60
642 )))
643
644 [[image:image-20220906101320-6.png]]
645
646
647 (% style="color:blue" %)**A2 downlink Command：**
648
649 A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
650
651 A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
652
653 A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
654
655 A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
656
657 A2 08 02 00 00 00 3C:  Same as AT+ SETCNT=60  (AT+ SETCNT = 4th byte and 5th byte and 6th byte and 7th byte)
658
659
660
661 == 2.5 Show data on Datacake ==
662
663
664 (((
665 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:
666 )))
667
668 (((
669
670 )))
671
672 (((
673 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
674 )))
675
676 (((
677 (% 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.
678 )))
679
680 (((
681
682 )))
683
684 (((
685 Add Datacake:
686 )))
687
688
689 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
690
691
692
693 Select default key as Access Key:
694
695
696 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
697
698
699 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
700
701
702 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
703
704
705 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
706
707
708
709 == 2.6 Datalog Feature ==
710
711
712 (((
713 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.
714 )))
715
716
717
718 === 2.6.1 Ways to get datalog via LoRaWAN ===
719
720
721 There are two methods:
722
723 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
724
725
726 (% style="color:blue" %)**Method 2: **(%%)Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
727
728 (% style="color:red" %)**Note for method 2:**
729
730 * a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
731 * b) LHT65N will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65N won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LHT65N gets a ACK, LHT65N will consider there is a network connection and resend all NONE-ACK Message.
732
733 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
734
735
736 [[image:image-20220703111700-2.png||height="381" width="1119"]]
737
738
739 === 2.6.2 Unix TimeStamp ===
740
741
742 LHT65N uses Unix TimeStamp format based on
743
744
745 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
746
747
748
749 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
750
751 Below is the converter example
752
753 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
754
755 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
756
757
758
759 === 2.6.3 Set Device Time ===
760
761
762 (((
763 (% style="color:blue" %)**There are two ways to set device's time:**
764 )))
765
766 (((
767 **1.  Through LoRaWAN MAC Command (Default settings)**
768 )))
769
770 (((
771 User need to set SYNCMOD=1 to enable sync time via MAC command.
772 )))
773
774 (((
775 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).
776 )))
777
778 (((
779 (% 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.**
780 )))
781
782 (((
783
784 )))
785
786 (((
787 **2. Manually Set Time**
788 )))
789
790 (((
791 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
792 )))
793
794
795
796 === 2.6.4 Poll sensor value ===
797
798
799 User can poll sensor value based on timestamps from the server. Below is the downlink command.
800
801 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
802
803
804 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.
805
806 For example, downlink command **31 5FC5F350 5FC6 0160 05**
807
808 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
809
810 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
811
812
813
814 === 2.6.5 Datalog Uplink payload ===
815
816
817 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
818 The Datalog poll reply uplink will use below payload format.
819
820 (% _mstvisible="1" %)
821 (((
822 (% _mstvisible="2" %)
823
824
825 (% _mstvisible="2" %)
826 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
827 )))
828
829 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
830 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
831 (((
832 (% _mstvisible="6" %)
833 (((
834 (% _mstvisible="7" %)
835 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
836 )))
837 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
838 (((
839 (% _mstvisible="6" %)
840 (((
841 (% _mstvisible="7" %)
842 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
843 )))
844 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
845 (((
846 (% _mstvisible="6" %)
847 (((
848 (% _mstvisible="7" %)
849 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
850 )))
851 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
852 (((
853 (% _mstvisible="6" %)
854 (((
855 (% _mstvisible="7" %)
856 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
857 )))
858 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
859 (((
860 (% _mstvisible="6" %)
861 (((
862 (% _mstvisible="7" %)
863 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
864 )))
865 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
866 (((
867 (% _mstvisible="6" %)
868 (((
869 (% _mstvisible="7" %)
870 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
871 )))
872 )))
873 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
874 (((
875 (% _mstvisible="6" %)
876 (((
877 (% _mstvisible="7" %)
878 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
879 )))
880 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
881 (((
882 (% _mstvisible="6" %)
883 (((
884 (% _mstvisible="7" %)
885 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
886 )))
887 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
888 (((
889 (% _mstvisible="6" %)
890 (((
891 (% _mstvisible="7" %)
892 (((
893 (% _mstvisible="8" %)
894 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
895 )))
896 )))
897
898 (% _mstvisible="6" %)
899 (((
900 (% _mstvisible="7" %)
901 (((
902 (% _mstvisible="8" %)
903 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
904 )))
905 )))
906 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
907 (((
908 (% _mstvisible="6" %)
909 (((
910 (% _mstvisible="7" %)
911 (((
912 (% _mstvisible="8" %)
913 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
914 )))
915 )))
916
917 (% _mstvisible="6" %)
918 (((
919 (% _mstvisible="7" %)
920 (((
921 (% _mstvisible="8" %)
922 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
923 )))
924 )))
925 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
926 (((
927 (% _mstvisible="6" %)
928 (((
929 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
930 Poll message flag & Ext
931 )))
932 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
933 (((
934 (% _mstvisible="6" %)
935 (((
936 (% _mstvisible="7" %)
937 (((
938 (% _mstvisible="8" %)
939 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
940 )))
941 )))
942
943 (% _mstvisible="6" %)
944 (((
945 (% _mstvisible="7" %)
946 (((
947 (% _mstvisible="8" %)
948
949 )))
950 )))
951 )))
952
953 (% _mstvisible="1" %)
954 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
955
956 (% _mstvisible="1" %)
957 (((
958 (% _mstvisible="2" %)
959 (((
960 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
961 (((
962 [[image:image-20221006192726-1.png||height="112" width="754"]]
963
964 (% class="mark" %)**No ACK Message**(%%): 1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]] feature)
965
966 (% class="mark" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
967
968
969 )))
970 )))
971 )))
972
973 (% _mstvisible="1" %)
974 * (% _mstvisible="3" %)
975 (((
976 (% _mstvisible="4" %)
977 (((
978 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
979 (((
980 Poll Message Flag is set to 1.
981 )))
982 )))
983 )))
984 * (% _mstvisible="3" %)
985 (((
986 (% _mstvisible="4" %)
987 (((
988 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
989 (((
990 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
991 )))
992 )))
993 )))
994
995 (% _mstvisible="1" %)
996 (((
997 (% _mstvisible="2" %)
998 (((
999 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
1000 (((
1001
1002 )))
1003
1004 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
1005 (((
1006 For example, in US915 band, the max payload for different DR is:
1007 )))
1008 )))
1009 )))
1010
1011 (% _mstvisible="1" %)
1012 (((
1013 (% _mstvisible="2" %)
1014 (((
1015 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
1016 (((
1017 **a) DR0:** max is 11 bytes so one entry of data
1018 )))
1019 )))
1020 )))
1021
1022 (% _mstvisible="1" %)
1023 (((
1024 (% _mstvisible="2" %)
1025 (((
1026 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
1027 (((
1028 **b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
1029 )))
1030 )))
1031 )))
1032
1033 (% _mstvisible="1" %)
1034 (((
1035 (% _mstvisible="2" %)
1036 (((
1037 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
1038 (((
1039 **c) DR2:** total payload includes 11 entries of data
1040 )))
1041 )))
1042 )))
1043
1044 (% _mstvisible="1" %)
1045 (((
1046 (% _mstvisible="2" %)
1047 (((
1048 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
1049 (((
1050 **d) DR3: **total payload includes 22 entries of data.
1051 )))
1052 )))
1053 )))
1054
1055 (% _mstvisible="1" %)
1056 (((
1057 (% _mstvisible="2" %)
1058 (((
1059 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
1060 (((
1061 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
1062 )))
1063 )))
1064 )))
1065
1066
1067 (% _mstvisible="1" style="text-align: left;" %)
1068 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
1069
1070 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
1071 If LHT65N has below data inside Flash:
1072
1073 (% _mstvisible="1" %)
1074 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
1075
1076 (% _mstvisible="1" %)
1077 (((
1078 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
1079 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
1080 )))
1081
1082 (% _mstvisible="1" %)
1083 (((
1084 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1085 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1086 )))
1087
1088 (% _mstvisible="1" %)
1089 (((
1090 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1091 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1092 )))
1093
1094 (% _mstvisible="1" %)
1095 (((
1096 (% _mstvisible="2" %)
1097
1098 )))
1099
1100 (% _mstvisible="1" %)
1101 (((
1102 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1103 LHT65N will uplink this payload.
1104 )))
1105
1106 (% _mstvisible="1" %)
1107 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1108
1109
1110 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1111 (((
1112 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1113 )))
1114
1115 (% _msthash="315237" _msttexthash="1385839" %)
1116 (((
1117 Where the first 11 bytes is for the first entry:
1118 )))
1119
1120 (% _msthash="315238" _msttexthash="274846" %)
1121 (((
1122 7FFF089801464160065F97
1123 )))
1124
1125 (% _msthash="315239" _msttexthash="617435" %)
1126 (((
1127 Ext sensor data=0x7FFF/100=327.67
1128 )))
1129
1130 (% _msthash="315240" _msttexthash="270543" %)
1131 (((
1132 Temp=0x0898/100=22.00
1133 )))
1134
1135 (% _msthash="315241" _msttexthash="211783" %)
1136 (((
1137 Hum=0x0146/10=32.6
1138 )))
1139
1140 (% _msthash="315242" _msttexthash="1569776" %)
1141 (((
1142 poll message flag & Ext=0x41,means reply data,Ext=1
1143 )))
1144
1145 (% _msthash="315243" _msttexthash="1120509" %)
1146 (((
1147 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1148 )))
1149
1150
1151
1152 == 2.7 Alarm Mode ==
1153
1154
1155 (((
1156 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.
1157 )))
1158
1159 (((
1160 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
1161
1162
1163
1164 === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) ===
1165
1166
1167 (((
1168 (% class="box infomessage" %)
1169 (((
1170 **AT+WMOD=3,**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1171
1172 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1173
1174 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1175
1176 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1177
1178 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1179
1180 **AT+LEDALARM=1** :       Enable LED visual Alarm.
1181 )))
1182 )))
1183
1184
1185
1186 )))
1187
1188 (((
1189 === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
1190
1191
1192 )))
1193
1194 (% _mstvisible="1" class="box infomessage" %)
1195 (((
1196 (((
1197 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1198 )))
1199
1200 (((
1201 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1202 )))
1203
1204 (((
1205 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1206 )))
1207
1208 (((
1209 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1210 )))
1211
1212 (((
1213 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1214 )))
1215 )))
1216
1217 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1218
1219 Total bytes: 8 bytes
1220
1221 **Example:**AA0100010001003C
1222
1223 WMOD=01
1224
1225 CITEMP=0001
1226
1227 TEMPlow=0001
1228
1229 TEMPhigh=003C
1230
1231
1232
1233 == 2.8 LED Indicator ==
1234
1235
1236 The LHT65 has a triple color LED which for easy showing different stage .
1237
1238 While user press ACT button, the LED will work as per LED status with ACT button.
1239
1240 In a normal working state:
1241
1242 * For each uplink, the BLUE LED or RED LED will blink once.
1243 BLUE LED when external sensor is connected.
1244 * RED LED when external sensor is not connected
1245 * For each success downlink, the PURPLE LED will blink once
1246
1247
1248
1249 == 2.9 installation ==
1250
1251
1252 (% _mstvisible="1" %)
1253 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1254
1255
1256
1257 = 3. Sensors and Accessories =
1258
1259
1260 == 3.1 E2 Extension Cable ==
1261
1262
1263 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1264
1265
1266 **1m long breakout cable for LHT65N. Features:**
1267
1268 * (((
1269 Use for AT Command， works for both LHT52/LHT65N
1270 )))
1271 * (((
1272 Update firmware for LHT65N, works for both LHT52/LHT65N
1273 )))
1274 * (((
1275 Supports ADC mode to monitor external ADC
1276 )))
1277 * (((
1278 Supports Interrupt mode
1279 )))
1280 * (((
1281 Exposed All pins from the LHT65N Type-C connector.
1282
1283
1284
1285 )))
1286
1287 [[image:image-20220619092421-3.png||height="371" width="529"]]
1288
1289
1290
1291
1292 == 3.2 E3 Temperature Probe ==
1293
1294
1295 [[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"]]
1296
1297
1298 Temperature sensor with 2 meters cable long
1299
1300 * Resolution: 0.0625 °C
1301 * ±0.5°C accuracy from -10°C to +85°C
1302 * ±2°C accuracy from -55°C to +125°C
1303 * Operating Range: -40 ~~ 125 °C
1304 * Working voltage 2.35v ~~ 5v
1305
1306
1307
1308 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1309
1310
1311 (((
1312 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1313 )))
1314
1315 * (((
1316 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1317 )))
1318
1319 * (((
1320 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1321 )))
1322
1323 (((
1324 There are two kinds of commands to configure LHT65N, they are:
1325 )))
1326
1327 * (((
1328 (% style="color:#4f81bd" %)**General Commands**.
1329 )))
1330
1331 (((
1332 These commands are to configure:
1333 )))
1334
1335 1. (((
1336 General system settings like: uplink interval.
1337 )))
1338 1. (((
1339 LoRaWAN protocol & radio-related commands.
1340 )))
1341
1342 (((
1343 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]]
1344 )))
1345
1346 * (((
1347 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1348 )))
1349
1350 (((
1351 These commands are only valid for LHT65N, as below:
1352 )))
1353
1354
1355
1356 == 4.1 Set Transmit Interval Time ==
1357
1358
1359 Feature: Change LoRaWAN End Node Transmit Interval.
1360
1361
1362 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1363
1364 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1365
1366
1367 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1368
1369 Format: Command Code (0x01) followed by 3 bytes time value.
1370
1371 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1372
1373 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1374
1375 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1376
1377
1378
1379 == 4.2 Set External Sensor Mode ==
1380
1381
1382 Feature: Change External Sensor Mode.
1383
1384
1385 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1386
1387 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1388
1389
1390 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1391
1392 Total bytes: 2 ~~ 5 bytes
1393
1394 **Example:**
1395
1396 * 0xA201: Set external sensor type to E1
1397
1398 * 0xA209: Same as AT+EXT=9
1399
1400 * 0xA20702003c: Same as AT+SETCNT=60
1401
1402
1403
1404 == 4.3 Enable/Disable uplink Temperature probe ID ==
1405
1406
1407 (((
1408 Feature: If PID is enabled, device will send the temperature probe ID on:
1409 )))
1410
1411 * (((
1412 First Packet after OTAA Join
1413 )))
1414 * (((
1415 Every 24 hours since the first packet.
1416 )))
1417
1418 (((
1419 PID is default set to disable (0)
1420
1421
1422 )))
1423
1424 (% style="color:#4f81bd" %)**AT Command:**
1425
1426 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1427
1428
1429 (% style="color:#4f81bd" %)**Downlink Command:**
1430
1431 * **0xA800**  **~-~->** AT+PID=0
1432 * **0xA801**     **~-~->** AT+PID=1
1433
1434
1435
1436 == 4.4 Set Password ==
1437
1438
1439 Feature: Set device password, max 9 digits
1440
1441
1442 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1443
1444 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1445
1446
1447 (% style="color:#4f81bd" %)**Downlink Command:**
1448
1449 No downlink command for this feature.
1450
1451
1452
1453 == 4.5 Quit AT Command ==
1454
1455
1456 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1457
1458
1459 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1460
1461 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1462
1463
1464 (% style="color:#4f81bd" %)**Downlink Command:**
1465
1466 No downlink command for this feature.
1467
1468
1469
1470 == 4.6 Set to sleep mode ==
1471
1472
1473 Feature: Set device to sleep mode
1474
1475 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1476 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1477
1478 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1479
1480 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1481
1482
1483 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1484
1485 * There is no downlink command to set to Sleep mode.
1486
1487
1488
1489 == 4.7 Set system time ==
1490
1491
1492 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1493
1494
1495 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1496
1497 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1498
1499
1500 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1501
1502 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1503
1504
1505
1506 == 4.8 Set Time Sync Mode ==
1507
1508
1509 (((
1510 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1511 )))
1512
1513 (((
1514 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.
1515
1516
1517 )))
1518
1519 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1520
1521 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1522
1523
1524 (% style="color:#4f81bd" %)**Downlink Command:**
1525
1526 0x28 01  ~/~/  Same As AT+SYNCMOD=1
1527 0x28 00  ~/~/  Same As AT+SYNCMOD=0
1528
1529
1530
1531 == 4.9 Set Time Sync Interval ==
1532
1533
1534 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1535
1536
1537 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1538
1539 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1540
1541
1542 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1543
1544 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1545
1546
1547
1548 == 4.10 Print data entries base on page. ==
1549
1550
1551 Feature: Print the sector data from start page to stop page (max is 416 pages).
1552
1553
1554 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1555
1556 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1557
1558
1559 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1560
1561 No downlink commands for feature
1562
1563
1564
1565 == 4.11 Print last few data entries. ==
1566
1567
1568 Feature: Print the last few data entries
1569
1570
1571 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1572
1573 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1574
1575
1576 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1577
1578 No downlink commands for feature
1579
1580
1581
1582 == 4.12 Clear Flash Record ==
1583
1584
1585 Feature: Clear flash storage for data log feature.
1586
1587
1588 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1589
1590 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1591
1592
1593 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1594
1595 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1596
1597
1598
1599 == 4.13 Auto Send None-ACK messages ==
1600
1601
1602 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1603 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.
1604
1605
1606 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1607
1608 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1609 The default factory setting is 0
1610
1611 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1612 (% _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**
1613 (% _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
1614
1615 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1616
1617 * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1618
1619
1620
1621 == 4.14 Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm ==
1622
1623
1624 Feature: Set internal and external temperature sensor alarms.
1625
1626 (% border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1627 |(%%)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|(%%)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|(%%)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1628 |(%%)(% style="color:#037691" %)AT+WMOD=parameter1,parameter2,parameter3,parameter4|Set internal and external temperature sensor alarms|OK
1629
1630 (% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
1631
1632 (% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
1633
1634 0): Cancel
1635
1636 1): Threshold alarm
1637
1638 2): Fluctuation alarm
1639
1640
1641 (% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
1642
1643 (% style="color:red" %)**Note: When the collection time is less than 60 seconds and always exceeds the set alarm threshold, the sending interval will not be the collection time, but will be sent every 60 seconds.**
1644
1645
1646 (% style="color:#037691" %) **Parameter 3 and parameter 4:**
1647
1648 1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
1649
1650 Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
1651
1652
1653 2):  If Alarm Mode is set to 2: Parameter 3 is valid, which represents the difference between the currently collected temperature and the last uploaded temperature.
1654
1655 Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
1656
1657 If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
1658
1659
1660 (% style="color:#4f81bd" %)**Downlink Command: 0xA5**
1661
1662 0xA5 00 ~-~- AT+WMOD=0.
1663
1664 0xA5 01 0A 11 94 29 04 ~-~- AT+WMOD=1,10,45,105  (AT+WMOD = second byte, third byte, fourth and fifth bytes divided by 100, sixth and seventh bytes divided by 100 )
1665
1666 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1667
1668 0xA5 FF ~-~- After the device receives it, upload the current alarm configuration (FPORT=8). Such as 01 0A 11 94 29 04 or 02 0A 02.
1669
1670
1671
1672 = 5. Battery & How to replace =
1673
1674
1675 == 5.1 Battery Type ==
1676
1677
1678 (((
1679 (((
1680 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.
1681 )))
1682 )))
1683
1684 (((
1685
1686 )))
1687
1688 (((
1689 (((
1690 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1691 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1692 )))
1693 )))
1694
1695 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1696
1697
1698
1699 == 5.2 Replace Battery ==
1700
1701
1702 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.
1703
1704 [[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"]]
1705
1706
1707 == 5.3 Battery Life Analyze ==
1708
1709
1710 (((
1711 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:
1712 [[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]]
1713 )))
1714
1715 (((
1716
1717 )))
1718
1719 (((
1720 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]]
1721 )))
1722
1723
1724
1725 = 6. FAQ =
1726
1727
1728 == 6.1 How to use AT Command? ==
1729
1730
1731 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.
1732
1733 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1734
1735
1736 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1737
1738 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1739 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1740 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1741
1742 (((
1743 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.
1744 )))
1745
1746
1747 Input password and ATZ to activate LHT65N,As shown below:
1748
1749 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1750
1751
1752 (% _msthash="506066" _msttexthash="544869" %)
1753 AT Command List is as below:
1754
1755 (% _msthash="506067" _msttexthash="361920" %)
1756 AT+<CMD>? :  Help on <CMD>
1757
1758 (% _msthash="506068" _msttexthash="243061" %)
1759 AT+<CMD> :  Run <CMD>
1760
1761 (% _msthash="506069" _msttexthash="704197" %)
1762 AT+<CMD>=<value> :  Set the value
1763
1764 (% _msthash="506070" _msttexthash="455676" %)
1765 AT+<CMD>=? :  Get the value
1766
1767 (% _msthash="506071" _msttexthash="670553" %)
1768 AT+DEBUG:  Set more info output
1769
1770 (% _msthash="506072" _msttexthash="485888" %)
1771 ATZ:  Trig a reset of the MCU
1772
1773 (% _msthash="506073" _msttexthash="2068872" %)
1774 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1775
1776 (% _msthash="506074" _msttexthash="689169" %)
1777 AT+DEUI:  Get or Set the Device EUI
1778
1779 (% _msthash="506075" _msttexthash="960414" %)
1780 AT+DADDR:  Get or Set the Device Address
1781
1782 (% _msthash="506076" _msttexthash="1079897" %)
1783 AT+APPKEY:  Get or Set the Application Key
1784
1785 (% _msthash="506077" _msttexthash="1326143" %)
1786 AT+NWKSKEY:  Get or Set the Network Session Key
1787
1788 (% _msthash="506078" _msttexthash="1573000" %)
1789 AT+APPSKEY:  Get or Set the Application Session Key
1790
1791 (% _msthash="506079" _msttexthash="1041729" %)
1792 AT+APPEUI:  Get or Set the Application EUI
1793
1794 (% _msthash="506080" _msttexthash="2104206" %)
1795 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1796
1797 (% _msthash="506081" _msttexthash="3369288" %)
1798 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1799
1800 (% _msthash="506082" _msttexthash="1894529" %)
1801 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1802
1803 (% _msthash="506083" _msttexthash="3864172" %)
1804 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1805
1806 (% _msthash="506084" _msttexthash="1712204" %)
1807 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1808
1809 (% _msthash="506085" _msttexthash="1281202" %)
1810 AT+RX2FQ:  Get or Set the Rx2 window frequency
1811
1812 (% _msthash="506086" _msttexthash="2796781" %)
1813 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1814
1815 (% _msthash="506087" _msttexthash="3285165" %)
1816 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1817
1818 (% _msthash="506088" _msttexthash="3286179" %)
1819 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1820
1821 (% _msthash="506089" _msttexthash="4703803" %)
1822 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1823
1824 (% _msthash="506090" _msttexthash="4704999" %)
1825 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1826
1827 (% _msthash="506091" _msttexthash="1528683" %)
1828 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1829
1830 (% _msthash="506092" _msttexthash="757185" %)
1831 AT+NWKID:  Get or Set the Network ID
1832
1833 (% _msthash="506093" _msttexthash="1156597" %)
1834 AT+FCU:  Get or Set the Frame Counter Uplink
1835
1836 (% _msthash="506094" _msttexthash="1273987" %)
1837 AT+FCD:  Get or Set the Frame Counter Downlink
1838
1839 (% _msthash="506095" _msttexthash="859222" %)
1840 AT+CLASS:  Get or Set the Device Class
1841
1842 (% _msthash="506096" _msttexthash="384852" %)
1843 AT+JOIN:  Join network
1844
1845 (% _msthash="506097" _msttexthash="548626" %)
1846 AT+NJS:  Get the join status
1847
1848 (% _msthash="506098" _msttexthash="2546206" %)
1849 AT+SENDB:  Send hexadecimal data along with the application port
1850
1851 (% _msthash="506099" _msttexthash="1932307" %)
1852 AT+SEND:  Send text data along with the application port
1853
1854 (% _msthash="506100" _msttexthash="3560557" %)
1855 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1856
1857 (% _msthash="506101" _msttexthash="1429701" %)
1858 AT+RECV:  Print last received data in raw format
1859
1860 (% _msthash="506102" _msttexthash="1735981" %)
1861 AT+VER:  Get current image version and Frequency Band
1862
1863 (% _msthash="506103" _msttexthash="1189474" %)
1864 AT+CFM:  Get or Set the confirmation mode (0-1)
1865
1866 (% _msthash="506104" _msttexthash="1718210" %)
1867 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1868
1869 (% _msthash="506105" _msttexthash="1339403" %)
1870 AT+SNR:  Get the SNR of the last received packet
1871
1872 (% _msthash="506106" _msttexthash="1452009" %)
1873 AT+RSSI:  Get the RSSI of the last received packet
1874
1875 (% _msthash="506107" _msttexthash="2768142" %)
1876 AT+TDC:  Get or set the application data transmission interval in ms
1877
1878 (% _msthash="506108" _msttexthash="1083914" %)
1879 AT+PORT:  Get or set the application port
1880
1881 (% _msthash="506109" _msttexthash="622440" %)
1882 AT+DISAT:  Disable AT commands
1883
1884 (% _msthash="506110" _msttexthash="868361" %)
1885 AT+PWORD: Set password, max 9 digits
1886
1887 (% _msthash="506111" _msttexthash="2210299" %)
1888 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1889
1890 (% _msthash="506112" _msttexthash="2113462" %)
1891 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1892
1893 (% _msthash="506113" _msttexthash="2087423" %)
1894 AT+PDTA:  Print the sector data from start page to stop page
1895
1896 (% _msthash="506114" _msttexthash="1063127" %)
1897 AT+PLDTA:  Print the last few sets of data
1898
1899 (% _msthash="506115" _msttexthash="1999426" %)
1900 AT+CLRDTA:  Clear the storage, record position back to 1st
1901
1902 (% _msthash="506116" _msttexthash="442130" %)
1903 AT+SLEEP:  Set sleep mode
1904
1905 (% _msthash="506117" _msttexthash="1080222" %)
1906 AT+EXT:  Get or Set external sensor model
1907
1908 (% _msthash="506118" _msttexthash="1309490" %)
1909 AT+BAT:  Get the current battery voltage in mV
1910
1911 (% _msthash="506119" _msttexthash="813891" %)
1912 AT+CFG:  Print all configurations
1913
1914 (% _msthash="506120" _msttexthash="551707" %)
1915 AT+WMOD:  Get or Set Work Mode
1916
1917 (% _msthash="506121" _msttexthash="2631499" %)
1918 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1919
1920 (% _msthash="506122" _msttexthash="3907150" %)
1921 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1922
1923 (% _msthash="506123" _msttexthash="854620" %)
1924 AT+SETCNT:  Set the count at present
1925
1926 (% _msthash="506124" _msttexthash="2554877" %)
1927 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1928
1929 (% _msthash="506125" _msttexthash="771849" %)
1930 AT+RPL:  Get or set response level
1931
1932 (% _msthash="506126" _msttexthash="1484314" %)
1933 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1934
1935 (% _msthash="506127" _msttexthash="741728" %)
1936 AT+LEAPSEC:  Get or Set Leap Second
1937
1938 (% _msthash="506128" _msttexthash="1694017" %)
1939 AT+SYNCMOD:  Get or Set time synchronization method
1940
1941 (% _msthash="506129" _msttexthash="2235948" %)
1942 AT+SYNCTDC:  Get or set time synchronization interval in day
1943
1944 (% _msthash="506130" _msttexthash="425542" %)
1945 AT+PID:  Get or set the PID
1946
1947
1948
1949 == 6.2 Where to use AT commands and Downlink commands ==
1950
1951
1952 **AT commands：**
1953
1954 [[image:image-20220620153708-1.png||height="603" width="723"]]
1955
1956
1957 **Downlink commands:**
1958
1959
1960
1961 (% style="color:blue" %)**TTN:**
1962
1963 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1964
1965
1966
1967 (% style="color:blue" %)**Helium：**
1968
1969 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1970
1971
1972
1973 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1974
1975
1976 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1977
1978
1979 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1980
1981
1982
1983 (% style="color:blue" %)**Aws:**
1984
1985 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1986
1987
1988
1989 == 6.3 How to change the uplink interval？ ==
1990
1991
1992 Please see this link: [[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" style="background-color: rgb(255, 255, 255);"]]
1993
1994
1995
1996 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1997
1998
1999 [[image:image-20220615153355-1.png]]
2000
2001 [[image:1655802313617-381.png]]
2002
2003
2004 (((
2005 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.
2006 )))
2007
2008
2009 Input password and ATZ to activate LHT65N,As shown below:
2010
2011 [[image:image-20220615154519-3.png||height="672" width="807"]]
2012
2013
2014
2015 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
2016
2017
2018 [[image:image-20220615153355-1.png]]
2019
2020
2021 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
2022
2023 [[image:image-20220615170542-5.png]]
2024
2025
2026
2027 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
2028
2029 (% _msthash="506146" _msttexthash="52173160" %)
2030 First connect the four lines；(% style="display:none" %)
2031
2032 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
2033
2034
2035 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
2036
2037 [[image:image-20220621170938-2.png]]
2038
2039
2040
2041 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
2042
2043 [[image:image-20220615171334-6.png]]
2044
2045
2046 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
2047
2048
2049 When this interface appears, it indicates that the download has been completed.
2050
2051 [[image:image-20220620160723-8.png]]
2052
2053
2054 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
2055
2056
2057
2058 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
2059
2060
2061 [[image:image-20220623110706-1.png]]
2062
2063
2064 [[image:image-20220623112117-4.png||height="459" width="343"]]
2065
2066
2067 (((
2068 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.
2069 )))
2070
2071
2072 Input password and ATZ to activate LHT65N,As shown below:
2073
2074 [[image:image-20220615154519-3.png||height="672" width="807"]]
2075
2076
2077
2078 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
2079
2080
2081 [[image:image-20220623110706-1.png]]
2082
2083
2084 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
2085
2086 [[image:image-20220615170542-5.png]]
2087
2088
2089
2090 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
2091
2092 (% _msthash="506146" _msttexthash="52173160" %)
2093 First connect the four lines；
2094
2095 (% _msthash="506146" _msttexthash="52173160" %)
2096 [[image:image-20220623113959-5.png||height="528" width="397"]]
2097
2098 (% _msthash="506146" _msttexthash="52173160" %)
2099 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
2100
2101
2102
2103 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
2104
2105 [[image:image-20220615171334-6.png]]
2106
2107
2108 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
2109
2110
2111 When this interface appears, it indicates that the download has been completed.
2112
2113 [[image:image-20220620160723-8.png]]
2114
2115
2116 Finally,restart reset device again
2117
2118
2119
2120 = 7. Order Info =
2121
2122
2123 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
2124
2125 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
2126
2127 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
2128 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
2129 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
2130 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
2131 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
2132 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
2133 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
2134 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2135
2136 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
2137
2138 * (% style="color:red" %)**E3**(%%): External Temperature Probe
2139
2140
2141
2142 = 8. Packing Info =
2143
2144
2145 **Package Includes**:
2146
2147 * LHT65N Temperature & Humidity Sensor x 1
2148 * Optional external sensor
2149
2150 **Dimension and weight**:
2151
2152 * Device Size:  10 x 10 x 3.5 cm
2153 * Device Weight: 120.5g
2154
2155
2156
2157 = 9. Reference material =
2158
2159
2160 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
2161
2162
2163
2164 = 10. FCC Warning =
2165
2166
2167 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
2168
2169 (1) This device may not cause harmful interference；
2170
2171 (2) this device must accept any interference received, including interference that may cause undesired operation.
2172
2173
2174