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Version 210.1 by Bei Jinggeng on 2022/10/18 10:49
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9 (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
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11 {{toc/}}
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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 == 1.3 Specification ==
65
66
67 (% style="color:#037691" %)**Built-in Temperature Sensor:**
68
69 * Resolution: 0.01 °C
70 * Accuracy Tolerance : Typ ±0.3 °C
71 * Long Term Drift: < 0.02 °C/yr
72 * Operating Range: -40 ~~ 85 °C
73
74 (% style="color:#037691" %)**Built-in Humidity Sensor:**
75
76 * Resolution: 0.04 %RH
77 * Accuracy Tolerance : Typ ±3 %RH
78 * Long Term Drift: < 0.02 °C/yr
79 * Operating Range: 0 ~~ 96 %RH
80
81 (% style="color:#037691" %)**External Temperature Sensor:**
82
83 * Resolution: 0.0625 °C
84 * ±0.5°C accuracy from -10°C to +85°C
85 * ±2°C accuracy from -55°C to +125°C
86 * Operating Range: -55 °C ~~ 125 °C
87
88 = 2. Connect LHT65N to IoT Server =
89
90
91 == 2.1 How does LHT65N work? ==
92
93
94 (((
95 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.
96 )))
97
98 (((
99 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.
100 )))
101
102
103
104 == 2.2 How to Activate LHT65N? ==
105
106
107 (((
108 The LHT65N has two working modes:
109 )))
110
111 * (((
112 (% 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.
113 )))
114 * (((
115 (% 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. 
116 )))
117
118 (((
119 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
120 )))
121
122
123 [[image:image-20220515123819-1.png||_mstalt="430742" _mstvisible="3" height="379" width="317"]]
124
125 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
126
127
128
129 == 2.3 Example to join LoRaWAN network ==
130
131
132 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %)
133 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.
134
135
136 (% _mstvisible="1" class="wikigeneratedid" %)
137 [[image:image-20220522232442-1.png||_mstalt="427830" _mstvisible="3" height="387" width="648"]]
138
139
140 (((
141 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:
142 )))
143
144
145
146 === 2.3.1 Step 1: Create Device n TTN ===
147
148
149 (((
150 Create a device in TTN V3 with the OTAA keys from LHT65N.
151 )))
152
153 (((
154 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
155 )))
156
157 [[image:image-20220617150003-1.jpeg]]
158
159 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
160
161 Add APP EUI in the application.
162
163
164 [[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
165
166
167 [[image:image-20220522232932-4.png||_mstalt="430157" _mstvisible="3"]]
168
169
170 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]]
171
172
173
174 (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
175
176
177 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]]
178
179
180 Input APP EUI,  APP KEY and DEV EUI:
181
182
183 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
184
185
186
187
188 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
189
190
191 (((
192 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.
193 )))
194
195 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
196
197
198
199
200 == 2.4 Uplink Payload   ( Fport~=2) ==
201
202
203 (((
204 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.
205 )))
206
207 (((
208 After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
209 )))
210
211 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
212 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
213 (((
214 (% _mstvisible="6" %)
215 (% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
216 )))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
217 (((
218 (% _mstvisible="6" %)
219 (% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
220 )))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
221 (((
222 (% _mstvisible="6" %)
223 (% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
224 )))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
225 (((
226 (% _mstvisible="6" %)
227 (% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
228 )))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
229 (((
230 (% _mstvisible="6" %)
231 (% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
232 )))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
233 (((
234 (% _mstvisible="6" %)
235 (% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
236 )))
237 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
238 (((
239 (% _mstvisible="6" %)
240 (% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
241 )))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
242 (((
243 (% _mstvisible="6" %)
244 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo" _msthash="1817485" _msttexthash="22594" _mstvisible="7"]]
245 )))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
246 (((
247 (% _mstvisible="6" %)
248 (((
249 (% _mstvisible="7" %)
250 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
251 )))
252 )))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
253 (((
254 (% _mstvisible="6" %)
255 (((
256 (% _mstvisible="7" %)
257 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2224743" _msttexthash="105872" _mstvisible="8"]]
258 )))
259
260 (% _mstvisible="6" %)
261 (((
262 (% _mstvisible="7" %)
263 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
264 )))
265 )))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
266 (((
267 (% _mstvisible="6" %)
268 [[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
269 )))|(% _mstvisible="4" style="width:51px" %)(% _mstvisible="5" %)
270 (((
271 (% _mstvisible="6" %)
272 [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
273 )))
274
275 * The First 6 bytes: has fix meanings for every LHT65N.
276 * The 7th byte (EXT #): defines the external sensor model.
277 * 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.)
278
279 === 2.4.1 Decoder in TTN V3 ===
280
281
282 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.
283
284 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]]
285
286
287 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
288
289
290
291
292 === 2.4.2 BAT-Battery Info ===
293
294
295 These two bytes of BAT include the battery state and the actually voltage
296
297 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
298
299
300 [[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
301
302
303 Check the battery voltage for LHT65N.
304
305 * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
306 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
307
308 === 2.4.3 Built-in Temperature ===
309
310
311 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
312
313 * Temperature:  0x0ABB/100=27.47℃
314
315 [[image:image-20220522235639-3.png||_mstalt="432120" _mstvisible="3"]]
316
317 * Temperature:  (0xF5C6-65536)/100=-26.18℃
318
319 === 2.4.4 Built-in Humidity ===
320
321
322 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]]
323
324 * Humidity:    0x025C/10=60.4%
325
326 === 2.4.5 Ext # ===
327
328
329 Bytes for External Sensor:
330
331 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
332
333
334
335 === 2.4.6 Ext value ===
336
337
338 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
339
340
341 [[image:image-20220522235639-5.png||_mstalt="432848" _mstvisible="3"]]
342
343
344 * DS18B20 temp=0x0ADD/100=27.81℃
345
346 The last 2 bytes of data are meaningless
347
348 [[image:image-20220522235639-6.png||_mstalt="433212" _mstvisible="3"]]
349
350
351 * External temperature= (0xF54F-65536)/100=-27.37℃
352
353 The last 2 bytes of data are meaningless
354
355 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
356
357
358
359 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
360
361
362 (((
363 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:
364 )))
365
366 (((
367
368 )))
369
370 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
371 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 96px;" %)(% _mstvisible="5" %)
372 (((
373 (% _mstvisible="6" %)
374 (% _msthash="1817488" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
375 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
376 (((
377 (% _mstvisible="6" %)
378 (% _msthash="1817489" _msttexthash="4550" _mstvisible="8" %)**2**
379 )))|=(% _mstvisible="4" style="width: 99px;" %)(% _mstvisible="5" %)
380 (((
381 (% _mstvisible="6" %)
382 (% _msthash="1817490" _msttexthash="4550" _mstvisible="8" %)**2**
383 )))|=(% _mstvisible="4" style="width: 132px;" %)(% _mstvisible="5" %)
384 (((
385 (% _mstvisible="6" %)
386 (% _msthash="1817491" _msttexthash="4550" _mstvisible="8" %)**2**
387 )))|=(% _mstvisible="4" style="width: 54px;" %)(% _mstvisible="5" %)
388 (((
389 (% _mstvisible="6" %)
390 (% _msthash="1817492" _msttexthash="4459" _mstvisible="8" %)**1**
391 )))|=(% _mstvisible="4" style="width: 64px;" %)(% _mstvisible="5" %)
392 (((
393 (% _mstvisible="6" %)
394 (% _msthash="1817493" _msttexthash="4732" _mstvisible="8" %)**4**
395 )))
396 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:96px" %)(% _mstvisible="5" %)
397 (((
398 (% _mstvisible="6" %)
399 (% _msthash="1817494" _msttexthash="60203" _mstvisible="8" %)**Value**
400 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
401 (((
402 (% _mstvisible="6" %)
403 [[External temperature>>||anchor="H4.2SetExternalSensorMode" _msthash="1817495" _msttexthash="426517" _mstvisible="7"]]
404 )))|(% _mstvisible="4" style="width:99px" %)(% _mstvisible="5" %)
405 (((
406 (% _mstvisible="6" %)
407 (((
408 (% _mstvisible="7" %)
409 [[Built-In>>||anchor="H2.4.3Built-inTemperature" _msthash="2224745" _msttexthash="100464" _mstvisible="8"]]
410 )))
411
412 (% _mstvisible="6" %)
413 (((
414 (% _mstvisible="7" %)
415 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224746" _msttexthash="184041" _mstvisible="8"]]
416 )))
417 )))|(% _mstvisible="4" style="width:132px" %)(% _mstvisible="5" %)
418 (((
419 (% _mstvisible="6" %)
420 (((
421 (% _msthash="2224747" _msttexthash="136331" _mstvisible="7" %)
422 BAT Status &
423 )))
424
425 (% _mstvisible="6" %)
426 (((
427 (% _mstvisible="7" %)
428 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224748" _msttexthash="311181" _mstvisible="8"]]
429 )))
430 )))|(% _mstvisible="4" style="width:54px" %)(% _mstvisible="5" %)
431 (((
432 (% _msthash="1817496" _msttexthash="147225" _mstvisible="6" %)
433 Status & Ext
434 )))|(% _mstvisible="4" style="width:64px" %)(% _mstvisible="5" %)
435 (((
436 (% _mstvisible="6" %)
437 (((
438 (% _mstvisible="7" %)
439 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2224749" _msttexthash="227175" _mstvisible="8"]]
440 )))
441 )))
442
443 (% _mstvisible="1" %)
444 * (% _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**
445
446 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
447 (% _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]
448 (% _mstvisible="3" %)|(% _msthash="1230921" _msttexthash="60203" _mstvisible="4" style="width:65px" %)Value|(% _mstvisible="4" style="width:267px" %)(% _mstvisible="5" %)
449 (((
450 (% _msthash="1817497" _msttexthash="128427" _mstvisible="6" %)
451 BAT Status
452
453 (% _msthash="1817498" _msttexthash="472784" _mstvisible="6" %)
454 00(b): Ultra Low ( BAT <= 2.50v)
455
456 (% _msthash="1817499" _msttexthash="483678" _mstvisible="6" %)
457 01(b): Low  (2.50v <=BAT <= 2.55v)
458
459 (% _msthash="1817500" _msttexthash="440791" _mstvisible="6" %)
460 10(b): OK   (2.55v <= BAT <=2.65v)
461
462 (% _msthash="1817501" _msttexthash="334191" _mstvisible="6" %)
463 11(b): Good   (BAT >= 2.65v)
464 )))|(% _mstvisible="4" style="width:134px" %)(% _mstvisible="5" %)
465 (((
466 (% _mstvisible="6" %)
467 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="1817502" _msttexthash="311181" _mstvisible="7"]]
468
469 (% _mstvisible="6" %)
470
471 )))
472
473 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte**
474
475 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %)
476 |(% 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]**
477 |(% 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)
478
479 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
480 * (% 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.
481 * (% 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)
482
483 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
484
485
486 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
487
488 be used to power the external ADC sensor; user can control the power on time for this
489
490 sensor by setting:
491
492 AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
493
494 For example:
495
496 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
497
498
499 Or use **downlink command A2** to set the same.
500
501 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
502
503 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.
504
505 [[image:image-20220628150112-1.png||height="241" width="285"]]
506
507
508 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
509
510 [[image:image-20220628150714-4.png]]
511
512
513 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.
514
515
516 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
517
518 [[image:image-20220628151005-5.png]]
519
520
521 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
522
523 [[image:image-20220628151056-6.png]]
524
525
526 3) Within range
527
528 [[image:image-20220628151143-7.png]]
529
530
531
532 ==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
533
534
535 [[image:image-20220927095645-1.png||height="534" width="460"]]
536
537
538 **Ext=2,Temperature Sensor(TMP117)：**
539
540 [[image:image-20220906102307-7.png]]
541
542
543 (% style="color:blue" %)**Interrupt Mode and Counting Mode:**
544
545 The external cable NE2 can be use for MOD4 and MOD8
546
547
548
549
550 ==== 2.4.6.5 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
551
552
553 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
554
555
556 (% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
557
558 **Case 1: Door Sensor.** 3.3v Out for such sensor is just to detect Open/Close.
559
560 In Open State, the power consumption is the same as if there is no probe
561
562 In Close state, the power consumption will be 3uA higher than normal.
563
564 [[image:image-20220906100852-1.png||height="205" width="377"]]
565
566
567 Ext=4,Interrupt Sensor：
568
569 (% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:512px" %)
570 |(% style="width:117px" %)(((
571 AT+EXT=4,1
572 )))|(% style="width:371px" %)(((
573 Sent uplink packet in both rising and falling interrupt
574 )))
575 |(% style="width:117px" %)(((
576 AT+EXT=4,2
577 )))|(% style="width:371px" %)(((
578 Sent uplink packet only in falling interrupt
579 )))
580 |(% style="width:117px" %)(((
581 AT+EXT=4,3
582 )))|(% style="width:371px" %)(((
583 Sent uplink packet only in rising interrupt
584 )))
585
586 Trigger by falling edge:
587
588 [[image:image-20220906101145-2.png]]
589
590
591 Trigger by raising edge：
592
593 [[image:image-20220906101145-3.png]]
594
595
596
597
598 ==== 2.4.6.6 Ext~=8 Counting Mode（Since Firmware v1.3） ====
599
600
601 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
602
603
604 (% 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.
605
606 [[image:image-20220906101320-4.png||height="366" width="698"]]
607
608
609 (% 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
610
611 [[image:image-20220906101320-5.png||height="353" width="696"]]
612
613 Ext=8, Counting Sensor ( 4 bytes)：
614
615 (% border="2" cellpadding="4" cellspacing="4" style="background-color:#ffffcc; color:green; height:6px; width:381px" %)
616 |(% style="width:138px" %)(((
617 AT+EXT=8,0
618 )))|(% style="width:240px" %)(((
619 Count at falling interrupt
620 )))
621 |(% style="width:138px" %)(((
622 AT+EXT=8,1
623 )))|(% style="width:240px" %)(((
624 Count at rising interrupt
625 )))
626 |(% style="width:138px" %)(((
627 AT+SETCNT=60
628 )))|(% style="width:240px" %)(((
629 Sent current count to 60
630 )))
631
632 [[image:image-20220906101320-6.png]]
633
634
635 (% style="color:blue" %)**A2 downlink Command：**
636
637 A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
638
639 A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
640
641 A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
642
643 A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
644
645 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)
646
647
648
649
650 == 2.5 Show data on Datacake ==
651
652
653 (((
654 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:
655 )))
656
657 (((
658
659 )))
660
661 (((
662 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
663 )))
664
665 (((
666 (% 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.
667 )))
668
669 (((
670
671 )))
672
673 (((
674 Add Datacake:
675 )))
676
677
678 [[image:image-20220523000825-7.png||_mstalt="429884" _mstvisible="3" height="262" width="583"]]
679
680
681
682 Select default key as Access Key:
683
684
685 [[image:image-20220523000825-8.png||_mstalt="430248" _mstvisible="3" height="453" width="406"]]
686
687
688 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/||_mstvisible="2"]]) , add LHT65 device.
689
690
691 [[image:image-20220523000825-9.png||_mstalt="430612" _mstvisible="3" height="366" width="392"]]
692
693
694 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
695
696
697
698 == 2.6 Datalog Feature ==
699
700
701 (((
702 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.
703 )))
704
705
706
707 === 2.6.1 Ways to get datalog via LoRaWAN ===
708
709
710 There are two methods:
711
712 **Method 1**: IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
713
714
715 **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.
716
717 **Note for method 2:**
718
719 * a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
720 * 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.
721
722 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
723
724
725 [[image:image-20220703111700-2.png||height="381" width="1119"]]
726
727
728 === 2.6.2 Unix TimeStamp ===
729
730
731 LHT65N uses Unix TimeStamp format based on
732
733
734 [[image:image-20220523001219-11.png||_mstalt="450450" _mstvisible="3" height="97" width="627"]]
735
736
737
738 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/||_mstvisible="3"]] :
739
740 Below is the converter example
741
742 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
743
744 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
745
746
747
748 === 2.6.3 Set Device Time ===
749
750
751 (((
752 There are two ways to set device's time:
753 )))
754
755 (((
756 **~1. Through LoRaWAN MAC Command (Default settings)**
757 )))
758
759 (((
760 User need to set SYNCMOD=1 to enable sync time via MAC command.
761 )))
762
763 (((
764 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).
765 )))
766
767 (((
768 (% 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.**
769 )))
770
771 (((
772
773 )))
774
775 (((
776 **2. Manually Set Time**
777 )))
778
779 (((
780 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
781 )))
782
783
784
785 === 2.6.4 Poll sensor value ===
786
787
788 User can poll sensor value based on timestamps from the server. Below is the downlink command.
789
790 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]]
791
792
793 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.
794
795 For example, downlink command **31 5FC5F350 5FC6 0160 05**
796
797 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00’s data
798
799 Uplink Internal =5s，means LHT65N will send one packet every 5s. range 5~~255s.
800
801
802
803 === 2.6.5 Datalog Uplink payload ===
804
805
806 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %)
807 The Datalog poll reply uplink will use below payload format.
808
809 (% _mstvisible="1" %)
810 (((
811 (% _mstvisible="2" %)
812
813
814 (% _mstvisible="2" %)
815 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload**
816 )))
817
818 (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
819 (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 93px;" %)(% _mstvisible="5" %)
820 (((
821 (% _mstvisible="6" %)
822 (((
823 (% _mstvisible="7" %)
824 (% _msthash="2224750" _msttexthash="161122" _mstvisible="9" %)**Size(bytes)**
825 )))
826 )))|=(% _mstvisible="4" style="width: 71px;" %)(% _mstvisible="5" %)
827 (((
828 (% _mstvisible="6" %)
829 (((
830 (% _mstvisible="7" %)
831 (% _msthash="2224751" _msttexthash="4550" _mstvisible="9" %)**2**
832 )))
833 )))|=(% _mstvisible="4" style="width: 102px;" %)(% _mstvisible="5" %)
834 (((
835 (% _mstvisible="6" %)
836 (((
837 (% _mstvisible="7" %)
838 (% _msthash="2224752" _msttexthash="4550" _mstvisible="9" %)**2**
839 )))
840 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
841 (((
842 (% _mstvisible="6" %)
843 (((
844 (% _mstvisible="7" %)
845 (% _msthash="2224753" _msttexthash="4550" _mstvisible="9" %)**2**
846 )))
847 )))|=(% _mstvisible="4" style="width: 86px;" %)(% _mstvisible="5" %)
848 (((
849 (% _mstvisible="6" %)
850 (((
851 (% _mstvisible="7" %)
852 (% _msthash="2224754" _msttexthash="4459" _mstvisible="9" %)**1**
853 )))
854 )))|=(% _mstvisible="4" style="width: 48px;" %)(% _mstvisible="5" %)
855 (((
856 (% _mstvisible="6" %)
857 (((
858 (% _mstvisible="7" %)
859 (% _msthash="2224755" _msttexthash="4732" _mstvisible="9" %)**4**
860 )))
861 )))
862 (% _mstvisible="3" %)|(% _mstvisible="4" style="width:93px" %)(% _mstvisible="5" %)
863 (((
864 (% _mstvisible="6" %)
865 (((
866 (% _mstvisible="7" %)
867 (% _msthash="2224756" _msttexthash="60203" _mstvisible="9" %)**Value**
868 )))
869 )))|(% _mstvisible="4" style="width:71px" %)(% _mstvisible="5" %)
870 (((
871 (% _mstvisible="6" %)
872 (((
873 (% _mstvisible="7" %)
874 [[External sensor data>>||anchor="H2.4.6Extvalue" _msthash="2224757" _msttexthash="386672" _mstvisible="8"]]
875 )))
876 )))|(% _mstvisible="4" style="width:102px" %)(% _mstvisible="5" %)
877 (((
878 (% _mstvisible="6" %)
879 (((
880 (% _mstvisible="7" %)
881 (((
882 (% _mstvisible="8" %)
883 [[Built In>>||anchor="H2.4.3Built-inTemperature" _msthash="2671864" _msttexthash="91065" _mstvisible="9"]]
884 )))
885 )))
886
887 (% _mstvisible="6" %)
888 (((
889 (% _mstvisible="7" %)
890 (((
891 (% _mstvisible="8" %)
892 [[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2671865" _msttexthash="184041" _mstvisible="9"]]
893 )))
894 )))
895 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
896 (((
897 (% _mstvisible="6" %)
898 (((
899 (% _mstvisible="7" %)
900 (((
901 (% _mstvisible="8" %)
902 [[Built-in>>||anchor="H2.4.4Built-inHumidity" _msthash="2671866" _msttexthash="105872" _mstvisible="9"]]
903 )))
904 )))
905
906 (% _mstvisible="6" %)
907 (((
908 (% _mstvisible="7" %)
909 (((
910 (% _mstvisible="8" %)
911 [[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2671867" _msttexthash="117429" _mstvisible="9"]]
912 )))
913 )))
914 )))|(% _mstvisible="4" style="width:86px" %)(% _mstvisible="5" %)
915 (((
916 (% _mstvisible="6" %)
917 (((
918 (% _msthash="2224758" _msttexthash="390390" _mstvisible="7" %)
919 Poll message flag & Ext
920 )))
921 )))|(% _mstvisible="4" style="width:48px" %)(% _mstvisible="5" %)
922 (((
923 (% _mstvisible="6" %)
924 (((
925 (% _mstvisible="7" %)
926 (((
927 (% _mstvisible="8" %)
928 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp" _msthash="2671868" _msttexthash="227175" _mstvisible="9"]]
929 )))
930 )))
931
932 (% _mstvisible="6" %)
933 (((
934 (% _mstvisible="7" %)
935 (((
936 (% _mstvisible="8" %)
937
938 )))
939 )))
940 )))
941
942 (% _mstvisible="1" %)
943 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext**
944
945 (% _mstvisible="1" %)
946 (((
947 (% _mstvisible="2" %)
948 (((
949 (% _msthash="736723" _msttexthash="2005003" _mstvisible="3" %)
950 (((
951 [[image:image-20221006192726-1.png||height="112" width="754"]]
952
953 (% 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)
954
955 (% class="mark" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
956
957
958 )))
959 )))
960 )))
961
962 (% _mstvisible="1" %)
963 * (% _mstvisible="3" %)
964 (((
965 (% _mstvisible="4" %)
966 (((
967 (% _msthash="1197157" _msttexthash="561548" _mstvisible="5" %)
968 (((
969 Poll Message Flag is set to 1.
970 )))
971 )))
972 )))
973 * (% _mstvisible="3" %)
974 (((
975 (% _mstvisible="4" %)
976 (((
977 (% _msthash="1197158" _msttexthash="9284964" _mstvisible="5" %)
978 (((
979 Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
980 )))
981 )))
982 )))
983
984 (% _mstvisible="1" %)
985 (((
986 (% _mstvisible="2" %)
987 (((
988 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
989 (((
990
991 )))
992
993 (% _msthash="736724" _msttexthash="2242344" _mstvisible="3" %)
994 (((
995 For example, in US915 band, the max payload for different DR is:
996 )))
997 )))
998 )))
999
1000 (% _mstvisible="1" %)
1001 (((
1002 (% _mstvisible="2" %)
1003 (((
1004 (% _msthash="736725" _msttexthash="1065532" _mstvisible="3" %)
1005 (((
1006 **a) DR0:** max is 11 bytes so one entry of data
1007 )))
1008 )))
1009 )))
1010
1011 (% _mstvisible="1" %)
1012 (((
1013 (% _mstvisible="2" %)
1014 (((
1015 (% _msthash="736726" _msttexthash="3265665" _mstvisible="3" %)
1016 (((
1017 **b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
1018 )))
1019 )))
1020 )))
1021
1022 (% _mstvisible="1" %)
1023 (((
1024 (% _mstvisible="2" %)
1025 (((
1026 (% _msthash="736727" _msttexthash="1454115" _mstvisible="3" style="text-align: left;" %)
1027 (((
1028 **c) DR2:** total payload includes 11 entries of data
1029 )))
1030 )))
1031 )))
1032
1033 (% _mstvisible="1" %)
1034 (((
1035 (% _mstvisible="2" %)
1036 (((
1037 (% _msthash="736728" _msttexthash="1483924" _mstvisible="3" style="text-align: left;" %)
1038 (((
1039 **d) DR3: **total payload includes 22 entries of data.
1040 )))
1041 )))
1042 )))
1043
1044 (% _mstvisible="1" %)
1045 (((
1046 (% _mstvisible="2" %)
1047 (((
1048 (% _msthash="736729" _msttexthash="5848349" _mstvisible="3" style="text-align: left;" %)
1049 (((
1050 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
1051 )))
1052 )))
1053 )))
1054
1055
1056 (% _mstvisible="1" style="text-align: left;" %)
1057 (% _msthash="315269" _msttexthash="104767" _mstvisible="3" %)**Example:**
1058
1059 (% _msthash="315270" _msttexthash="913822" _mstvisible="1" style="text-align: left;" %)
1060 If LHT65N has below data inside Flash:
1061
1062 (% _mstvisible="1" %)
1063 [[image:image-20220523144455-1.png||_mstalt="430040" _mstvisible="3" height="335" width="735"]]
1064
1065 (% _mstvisible="1" %)
1066 (((
1067 (% _msthash="506081" _msttexthash="1663961" _mstvisible="2" style="text-align: left;" %)
1068 If user sends below downlink command: (% _mstvisible="3" style="background-color:yellow" %)3160065F9760066DA705
1069 )))
1070
1071 (% _mstvisible="1" %)
1072 (((
1073 (% _msthash="506082" _msttexthash="1092494" _mstvisible="2" style="text-align: left;" %)
1074 Where : Start time: 60065F97 = time 21/1/19 04:27:03
1075 )))
1076
1077 (% _mstvisible="1" %)
1078 (((
1079 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %)
1080 Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03
1081 )))
1082
1083 (% _mstvisible="1" %)
1084 (((
1085 (% _mstvisible="2" %)
1086
1087 )))
1088
1089 (% _mstvisible="1" %)
1090 (((
1091 (% _msthash="506084" _msttexthash="751218" _mstvisible="2" style="text-align: left;" %)
1092 LHT65N will uplink this payload.
1093 )))
1094
1095 (% _mstvisible="1" %)
1096 [[image:image-20220523001219-13.png||_mstalt="451204" _mstvisible="3" height="421" style="text-align:left" width="727"]]
1097
1098
1099 (% _msthash="315271" _msttexthash="12012546" _mstvisible="1" style="text-align: left;" %)
1100 (((
1101 7FFF089801464160065F977FFF088E014B41600660097FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
1102 )))
1103
1104 (% _msthash="315237" _msttexthash="1385839" %)
1105 (((
1106 Where the first 11 bytes is for the first entry:
1107 )))
1108
1109 (% _msthash="315238" _msttexthash="274846" %)
1110 (((
1111 7FFF089801464160065F97
1112 )))
1113
1114 (% _msthash="315239" _msttexthash="617435" %)
1115 (((
1116 Ext sensor data=0x7FFF/100=327.67
1117 )))
1118
1119 (% _msthash="315240" _msttexthash="270543" %)
1120 (((
1121 Temp=0x0898/100=22.00
1122 )))
1123
1124 (% _msthash="315241" _msttexthash="211783" %)
1125 (((
1126 Hum=0x0146/10=32.6
1127 )))
1128
1129 (% _msthash="315242" _msttexthash="1569776" %)
1130 (((
1131 poll message flag & Ext=0x41,means reply data,Ext=1
1132 )))
1133
1134 (% _msthash="315243" _msttexthash="1120509" %)
1135 (((
1136 Unix time is 0x60065F97=1611030423s=21/1/19 04:27:03
1137 )))
1138
1139
1140
1141 == 2.7 Alarm Mode ==
1142
1143
1144 (((
1145 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.
1146 )))
1147
1148 (((
1149 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
1150
1151 === **2.7.1 ALARM MODE ( Since v1.3.1 firmware)** ===
1152
1153 (((
1154 (% class="box infomessage" %)
1155 (((
1156 **AT+WMOD=3,**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1157
1158 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1159
1160 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1161
1162 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1163
1164 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1165
1166 **AT+LEDALARM=1** :       Enable LED visual Alarm.
1167 )))
1168 )))
1169
1170
1171
1172 )))
1173
1174 (((
1175 === **2.7.2 ALARM MODE ( Before v1.3.1 firmware)** ===
1176 )))
1177
1178 (% _mstvisible="1" class="box infomessage" %)
1179 (((
1180 (((
1181 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1182 )))
1183
1184 (((
1185 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1186 )))
1187
1188 (((
1189 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1190 )))
1191
1192 (((
1193 **AT+ARTEMP=？ **:  Gets the alarm range of the internal temperature sensor(% _mstvisible="3" style="display:none" %)
1194 )))
1195
1196 (((
1197 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1198 )))
1199 )))
1200
1201 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1202
1203 Total bytes: 8 bytes
1204
1205 **Example:**AA0100010001003C
1206
1207 WMOD=01
1208
1209 CITEMP=0001
1210
1211 TEMPlow=0001
1212
1213 TEMPhigh=003C
1214
1215
1216
1217 == 2.8 LED Indicator ==
1218
1219
1220 The LHT65 has a triple color LED which for easy showing different stage .
1221
1222 While user press ACT button, the LED will work as per LED status with ACT button.
1223
1224 In a normal working state:
1225
1226 * For each uplink, the BLUE LED or RED LED will blink once.
1227 BLUE LED when external sensor is connected.
1228 * RED LED when external sensor is not connected
1229 * For each success downlink, the PURPLE LED will blink once
1230
1231 == 2.9 installation ==
1232
1233
1234 (% _mstvisible="1" %)
1235 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
1236
1237
1238
1239 = 3. Sensors and Accessories =
1240
1241
1242 == 3.1 E2 Extension Cable ==
1243
1244
1245 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1246
1247
1248 **1m long breakout cable for LHT65N. Features:**
1249
1250 * (((
1251 Use for AT Command， works for both LHT52/LHT65N
1252 )))
1253 * (((
1254 Update firmware for LHT65N, works for both LHT52/LHT65N
1255 )))
1256 * (((
1257 Supports ADC mode to monitor external ADC
1258 )))
1259 * (((
1260 Supports Interrupt mode
1261 )))
1262 * (((
1263 Exposed All pins from the LHT65N Type-C connector.
1264
1265
1266
1267 )))
1268
1269 [[image:image-20220619092421-3.png||height="371" width="529"]]
1270
1271
1272
1273
1274 == 3.2 E3 Temperature Probe ==
1275
1276
1277 [[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"]]
1278
1279
1280 Temperature sensor with 2 meters cable long
1281
1282 * Resolution: 0.0625 °C
1283 * ±0.5°C accuracy from -10°C to +85°C
1284 * ±2°C accuracy from -55°C to +125°C
1285 * Operating Range: -40 ~~ 125 °C
1286 * Working voltage 2.35v ~~ 5v
1287
1288 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1289
1290
1291 (((
1292 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1293 )))
1294
1295 * (((
1296 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1297 )))
1298
1299 * (((
1300 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1301 )))
1302
1303 (((
1304 There are two kinds of commands to configure LHT65N, they are:
1305 )))
1306
1307 * (((
1308 (% style="color:#4f81bd" %)**General Commands**.
1309 )))
1310
1311 (((
1312 These commands are to configure:
1313 )))
1314
1315 1. (((
1316 General system settings like: uplink interval.
1317 )))
1318 1. (((
1319 LoRaWAN protocol & radio-related commands.
1320 )))
1321
1322 (((
1323 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]]
1324 )))
1325
1326 * (((
1327 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1328 )))
1329
1330 (((
1331 These commands are only valid for LHT65N, as below:
1332 )))
1333
1334
1335
1336 == 4.1 Set Transmit Interval Time ==
1337
1338
1339 Feature: Change LoRaWAN End Node Transmit Interval.
1340
1341
1342 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1343
1344 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]]
1345
1346
1347 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1348
1349 Format: Command Code (0x01) followed by 3 bytes time value.
1350
1351 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1352
1353 * **Example 1**: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1354
1355 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1356
1357 == 4.2 Set External Sensor Mode ==
1358
1359
1360 Feature: Change External Sensor Mode.
1361
1362
1363 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1364
1365 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]]
1366
1367
1368 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1369
1370 Total bytes: 2 ~~ 5 bytes
1371
1372 **Example:**
1373
1374 * 0xA201: Set external sensor type to E1
1375
1376 * 0xA209: Same as AT+EXT=9
1377
1378 * 0xA20702003c: Same as AT+SETCNT=60
1379
1380 == 4.3 Enable/Disable uplink Temperature probe ID ==
1381
1382
1383 (((
1384 Feature: If PID is enabled, device will send the temperature probe ID on:
1385 )))
1386
1387 * (((
1388 First Packet after OTAA Join
1389 )))
1390 * (((
1391 Every 24 hours since the first packet.
1392 )))
1393
1394 (((
1395 PID is default set to disable (0)
1396
1397
1398 )))
1399
1400 (% style="color:#4f81bd" %)**AT Command:**
1401
1402 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]]
1403
1404
1405 (% style="color:#4f81bd" %)**Downlink Command:**
1406
1407 * **0xA800**  **~-~->** AT+PID=0
1408 * **0xA801**     **~-~->** AT+PID=1
1409
1410 == 4.4 Set Password ==
1411
1412
1413 Feature: Set device password, max 9 digits
1414
1415
1416 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1417
1418 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]]
1419
1420
1421 (% style="color:#4f81bd" %)**Downlink Command:**
1422
1423 No downlink command for this feature.
1424
1425
1426
1427 == 4.5 Quit AT Command ==
1428
1429
1430 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1431
1432
1433 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1434
1435 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]]
1436
1437
1438 (% style="color:#4f81bd" %)**Downlink Command:**
1439
1440 No downlink command for this feature.
1441
1442
1443
1444 == 4.6 Set to sleep mode ==
1445
1446
1447 Feature: Set device to sleep mode
1448
1449 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1450 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1451
1452 (% _msthash="315251" _msttexthash="289783" style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1453
1454 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]]
1455
1456
1457 (% _msthash="315252" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1458
1459 * There is no downlink command to set to Sleep mode.
1460
1461 == 4.7 Set system time ==
1462
1463
1464 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1465
1466
1467 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1468
1469 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]]
1470
1471
1472 (% _msthash="315254" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1473
1474 0x306007806000  ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1475
1476
1477
1478 == 4.8 Set Time Sync Mode ==
1479
1480
1481 (((
1482 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1483 )))
1484
1485 (((
1486 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.
1487
1488
1489 )))
1490
1491 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1492
1493 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]]
1494
1495
1496 (% style="color:#4f81bd" %)**Downlink Command:**
1497
1498 0x28 01  ~/~/  Same As AT+SYNCMOD=1
1499 0x28 00  ~/~/  Same As AT+SYNCMOD=0
1500
1501
1502
1503 == 4.9 Set Time Sync Interval ==
1504
1505
1506 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1507
1508
1509 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:**
1510
1511 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]]
1512
1513
1514 (% _msthash="315257" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1515
1516 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1517
1518
1519
1520 == 4.10 Print data entries base on page. ==
1521
1522
1523 Feature: Print the sector data from start page to stop page (max is 416 pages).
1524
1525
1526 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA**
1527
1528 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]]
1529
1530
1531 (% _msthash="315259" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1532
1533 No downlink commands for feature
1534
1535
1536
1537 == 4.11 Print last few data entries. ==
1538
1539
1540 Feature: Print the last few data entries
1541
1542
1543 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1544
1545 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]]
1546
1547
1548 (% _msthash="315261" _msttexthash="298038" style="color:#4f81bd" %)**Downlink Command:**
1549
1550 No downlink commands for feature
1551
1552
1553
1554 == 4.12 Clear Flash Record ==
1555
1556
1557 Feature: Clear flash storage for data log feature.
1558
1559
1560 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1561
1562 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]]
1563
1564
1565 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1566
1567 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1568
1569 == 4.13 Auto Send None-ACK messages ==
1570
1571
1572 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %)
1573 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.
1574
1575
1576 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1577
1578 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %)
1579 The default factory setting is 0
1580
1581 (% _mstvisible="1" border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1582 (% _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**
1583 (% _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
1584
1585 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1586
1587 * Example: 0x3401 ~/~/  Same as AT+PNACKMD=1
1588
1589 == 4.14 Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm ==
1590
1591
1592 Feature: Set internal and external temperature sensor alarms.
1593
1594 (% border="1" style="background-color:#ffffcc; color:green; width:450px" %)
1595 |(%%)(% _msthash="1231737" _msttexthash="251862" _mstvisible="6" %)**Command Example**|(%%)(% _msthash="1231738" _msttexthash="116025" _mstvisible="6" %)**Function**|(%%)(% _msthash="1231739" _msttexthash="116831" _mstvisible="6" %)**Response**
1596 |(%%)(% style="color:#037691" %)AT+WMOD=parameter1,parameter2,parameter3,parameter4|Set internal and external temperature sensor alarms|OK
1597
1598 (% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
1599
1600 (% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
1601
1602 0): Cancel
1603
1604 1): Threshold alarm
1605
1606 2): Fluctuation alarm
1607
1608
1609 (% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
1610
1611 (% 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.**
1612
1613
1614 (% style="color:#037691" %) **Parameter 3 and parameter 4:**
1615
1616 1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
1617
1618 Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
1619
1620
1621 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.
1622
1623 Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
1624
1625 If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
1626
1627
1628 (% style="color:#4f81bd" %)**Downlink Command: 0xA5**
1629
1630 0xA5 00 ~-~- AT+WMOD=0.
1631
1632 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 )
1633
1634 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1635
1636 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.
1637
1638 = 5. Battery & How to replace =
1639
1640
1641 == 5.1 Battery Type ==
1642
1643
1644 (((
1645 (((
1646 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.
1647 )))
1648 )))
1649
1650 (((
1651
1652 )))
1653
1654 (((
1655 (((
1656 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1657 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1658 )))
1659 )))
1660
1661 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1662
1663
1664
1665 == 5.2 Replace Battery ==
1666
1667
1668 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.
1669
1670 [[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"]]
1671
1672
1673 == 5.3 Battery Life Analyze ==
1674
1675
1676 (((
1677 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:
1678 [[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]]
1679 )))
1680
1681 (((
1682
1683 )))
1684
1685 (((
1686 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]]
1687 )))
1688
1689
1690
1691 = 6. FAQ =
1692
1693
1694 == 6.1 How to use AT Command? ==
1695
1696
1697 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.
1698
1699 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1700
1701
1702 (% _msthash="506061" _msttexthash="170755" %)**Connection:**
1703
1704 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1705 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1706 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1707
1708 (((
1709 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.
1710 )))
1711
1712
1713 Input password and ATZ to activate LHT65N,As shown below:
1714
1715 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1716
1717
1718 (% _msthash="506066" _msttexthash="544869" %)
1719 AT Command List is as below:
1720
1721 (% _msthash="506067" _msttexthash="361920" %)
1722 AT+<CMD>? :  Help on <CMD>
1723
1724 (% _msthash="506068" _msttexthash="243061" %)
1725 AT+<CMD> :  Run <CMD>
1726
1727 (% _msthash="506069" _msttexthash="704197" %)
1728 AT+<CMD>=<value> :  Set the value
1729
1730 (% _msthash="506070" _msttexthash="455676" %)
1731 AT+<CMD>=? :  Get the value
1732
1733 (% _msthash="506071" _msttexthash="670553" %)
1734 AT+DEBUG:  Set more info output
1735
1736 (% _msthash="506072" _msttexthash="485888" %)
1737 ATZ:  Trig a reset of the MCU
1738
1739 (% _msthash="506073" _msttexthash="2068872" %)
1740 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1741
1742 (% _msthash="506074" _msttexthash="689169" %)
1743 AT+DEUI:  Get or Set the Device EUI
1744
1745 (% _msthash="506075" _msttexthash="960414" %)
1746 AT+DADDR:  Get or Set the Device Address
1747
1748 (% _msthash="506076" _msttexthash="1079897" %)
1749 AT+APPKEY:  Get or Set the Application Key
1750
1751 (% _msthash="506077" _msttexthash="1326143" %)
1752 AT+NWKSKEY:  Get or Set the Network Session Key
1753
1754 (% _msthash="506078" _msttexthash="1573000" %)
1755 AT+APPSKEY:  Get or Set the Application Session Key
1756
1757 (% _msthash="506079" _msttexthash="1041729" %)
1758 AT+APPEUI:  Get or Set the Application EUI
1759
1760 (% _msthash="506080" _msttexthash="2104206" %)
1761 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1762
1763 (% _msthash="506081" _msttexthash="3369288" %)
1764 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1765
1766 (% _msthash="506082" _msttexthash="1894529" %)
1767 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1768
1769 (% _msthash="506083" _msttexthash="3864172" %)
1770 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1771
1772 (% _msthash="506084" _msttexthash="1712204" %)
1773 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1774
1775 (% _msthash="506085" _msttexthash="1281202" %)
1776 AT+RX2FQ:  Get or Set the Rx2 window frequency
1777
1778 (% _msthash="506086" _msttexthash="2796781" %)
1779 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1780
1781 (% _msthash="506087" _msttexthash="3285165" %)
1782 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1783
1784 (% _msthash="506088" _msttexthash="3286179" %)
1785 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1786
1787 (% _msthash="506089" _msttexthash="4703803" %)
1788 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1789
1790 (% _msthash="506090" _msttexthash="4704999" %)
1791 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1792
1793 (% _msthash="506091" _msttexthash="1528683" %)
1794 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1795
1796 (% _msthash="506092" _msttexthash="757185" %)
1797 AT+NWKID:  Get or Set the Network ID
1798
1799 (% _msthash="506093" _msttexthash="1156597" %)
1800 AT+FCU:  Get or Set the Frame Counter Uplink
1801
1802 (% _msthash="506094" _msttexthash="1273987" %)
1803 AT+FCD:  Get or Set the Frame Counter Downlink
1804
1805 (% _msthash="506095" _msttexthash="859222" %)
1806 AT+CLASS:  Get or Set the Device Class
1807
1808 (% _msthash="506096" _msttexthash="384852" %)
1809 AT+JOIN:  Join network
1810
1811 (% _msthash="506097" _msttexthash="548626" %)
1812 AT+NJS:  Get the join status
1813
1814 (% _msthash="506098" _msttexthash="2546206" %)
1815 AT+SENDB:  Send hexadecimal data along with the application port
1816
1817 (% _msthash="506099" _msttexthash="1932307" %)
1818 AT+SEND:  Send text data along with the application port
1819
1820 (% _msthash="506100" _msttexthash="3560557" %)
1821 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1822
1823 (% _msthash="506101" _msttexthash="1429701" %)
1824 AT+RECV:  Print last received data in raw format
1825
1826 (% _msthash="506102" _msttexthash="1735981" %)
1827 AT+VER:  Get current image version and Frequency Band
1828
1829 (% _msthash="506103" _msttexthash="1189474" %)
1830 AT+CFM:  Get or Set the confirmation mode (0-1)
1831
1832 (% _msthash="506104" _msttexthash="1718210" %)
1833 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1834
1835 (% _msthash="506105" _msttexthash="1339403" %)
1836 AT+SNR:  Get the SNR of the last received packet
1837
1838 (% _msthash="506106" _msttexthash="1452009" %)
1839 AT+RSSI:  Get the RSSI of the last received packet
1840
1841 (% _msthash="506107" _msttexthash="2768142" %)
1842 AT+TDC:  Get or set the application data transmission interval in ms
1843
1844 (% _msthash="506108" _msttexthash="1083914" %)
1845 AT+PORT:  Get or set the application port
1846
1847 (% _msthash="506109" _msttexthash="622440" %)
1848 AT+DISAT:  Disable AT commands
1849
1850 (% _msthash="506110" _msttexthash="868361" %)
1851 AT+PWORD: Set password, max 9 digits
1852
1853 (% _msthash="506111" _msttexthash="2210299" %)
1854 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1855
1856 (% _msthash="506112" _msttexthash="2113462" %)
1857 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1858
1859 (% _msthash="506113" _msttexthash="2087423" %)
1860 AT+PDTA:  Print the sector data from start page to stop page
1861
1862 (% _msthash="506114" _msttexthash="1063127" %)
1863 AT+PLDTA:  Print the last few sets of data
1864
1865 (% _msthash="506115" _msttexthash="1999426" %)
1866 AT+CLRDTA:  Clear the storage, record position back to 1st
1867
1868 (% _msthash="506116" _msttexthash="442130" %)
1869 AT+SLEEP:  Set sleep mode
1870
1871 (% _msthash="506117" _msttexthash="1080222" %)
1872 AT+EXT:  Get or Set external sensor model
1873
1874 (% _msthash="506118" _msttexthash="1309490" %)
1875 AT+BAT:  Get the current battery voltage in mV
1876
1877 (% _msthash="506119" _msttexthash="813891" %)
1878 AT+CFG:  Print all configurations
1879
1880 (% _msthash="506120" _msttexthash="551707" %)
1881 AT+WMOD:  Get or Set Work Mode
1882
1883 (% _msthash="506121" _msttexthash="2631499" %)
1884 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1885
1886 (% _msthash="506122" _msttexthash="3907150" %)
1887 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1888
1889 (% _msthash="506123" _msttexthash="854620" %)
1890 AT+SETCNT:  Set the count at present
1891
1892 (% _msthash="506124" _msttexthash="2554877" %)
1893 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1894
1895 (% _msthash="506125" _msttexthash="771849" %)
1896 AT+RPL:  Get or set response level
1897
1898 (% _msthash="506126" _msttexthash="1484314" %)
1899 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1900
1901 (% _msthash="506127" _msttexthash="741728" %)
1902 AT+LEAPSEC:  Get or Set Leap Second
1903
1904 (% _msthash="506128" _msttexthash="1694017" %)
1905 AT+SYNCMOD:  Get or Set time synchronization method
1906
1907 (% _msthash="506129" _msttexthash="2235948" %)
1908 AT+SYNCTDC:  Get or set time synchronization interval in day
1909
1910 (% _msthash="506130" _msttexthash="425542" %)
1911 AT+PID:  Get or set the PID
1912
1913
1914
1915 == 6.2 Where to use AT commands and Downlink commands ==
1916
1917
1918 **AT commands：**
1919
1920 [[image:image-20220620153708-1.png||height="603" width="723"]]
1921
1922
1923 **Downlink commands:**
1924
1925
1926
1927 (% style="color:blue" %)**TTN:**
1928
1929 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1930
1931
1932
1933 (% style="color:blue" %)**Helium：**
1934
1935 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1936
1937
1938
1939 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1940
1941
1942 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1943
1944
1945 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1946
1947
1948
1949 (% style="color:blue" %)**Aws:**
1950
1951 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1952
1953
1954
1955 == 6.3 How to change the uplink interval？ ==
1956
1957
1958 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);"]]
1959
1960
1961
1962 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1963
1964
1965 [[image:image-20220615153355-1.png]]
1966
1967 [[image:1655802313617-381.png]]
1968
1969
1970 (((
1971 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.
1972 )))
1973
1974
1975 Input password and ATZ to activate LHT65N,As shown below:
1976
1977 [[image:image-20220615154519-3.png||height="672" width="807"]]
1978
1979
1980
1981 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1982
1983
1984 [[image:image-20220615153355-1.png]]
1985
1986
1987 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
1988
1989 [[image:image-20220615170542-5.png]]
1990
1991
1992
1993 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1994
1995 (% _msthash="506146" _msttexthash="52173160" %)
1996 First connect the four lines；(% style="display:none" %)
1997
1998 [[image:image-20220621170938-1.png||height="413" width="419"]](% _mstvisible="1" %)，(% style="display:none" %)
1999
2000
2001 (% _mstvisible="1" %)Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
2002
2003 [[image:image-20220621170938-2.png]]
2004
2005
2006
2007 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
2008
2009 [[image:image-20220615171334-6.png]]
2010
2011
2012 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
2013
2014
2015 When this interface appears, it indicates that the download has been completed.
2016
2017 [[image:image-20220620160723-8.png]]
2018
2019
2020 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
2021
2022
2023
2024 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
2025
2026
2027 [[image:image-20220623110706-1.png]]
2028
2029
2030 [[image:image-20220623112117-4.png||height="459" width="343"]]
2031
2032
2033 (((
2034 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.
2035 )))
2036
2037
2038 Input password and ATZ to activate LHT65N,As shown below:
2039
2040 [[image:image-20220615154519-3.png||height="672" width="807"]]
2041
2042
2043
2044 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
2045
2046
2047 [[image:image-20220623110706-1.png]]
2048
2049
2050 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer  first.
2051
2052 [[image:image-20220615170542-5.png]]
2053
2054
2055
2056 (% style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
2057
2058 (% _msthash="506146" _msttexthash="52173160" %)
2059 First connect the four lines；
2060
2061 (% _msthash="506146" _msttexthash="52173160" %)
2062 [[image:image-20220623113959-5.png||height="528" width="397"]]
2063
2064 (% _msthash="506146" _msttexthash="52173160" %)
2065 Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
2066
2067
2068
2069 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
2070
2071 [[image:image-20220615171334-6.png]]
2072
2073
2074 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
2075
2076
2077 When this interface appears, it indicates that the download has been completed.
2078
2079 [[image:image-20220620160723-8.png]]
2080
2081
2082 Finally,restart reset device again
2083
2084
2085
2086 = 7. Order Info =
2087
2088
2089 Part Number: (% _mstvisible="4" style="color:#4f81bd" %)** LHT65N-XX-YY**
2090
2091 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
2092
2093 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
2094 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
2095 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
2096 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
2097 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
2098 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**US915**(%%): LoRaWAN US915 band
2099 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
2100 * (% style="color:#4f81bd" %)** **(% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2101
2102 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
2103
2104 * (% style="color:red" %)**E3**(%%): External Temperature Probe
2105
2106 = 8. Packing Info =
2107
2108
2109 **Package Includes**:
2110
2111 * LHT65N Temperature & Humidity Sensor x 1
2112 * Optional external sensor
2113
2114 **Dimension and weight**:
2115
2116 * Device Size:  10 x 10 x 3.5 cm
2117 * Device Weight: 120.5g
2118
2119 = 9. Reference material =
2120
2121
2122 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]]
2123
2124 = 10. FCC Warning =
2125
2126
2127 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
2128
2129 (1) This device may not cause harmful interference；
2130
2131 (2) this device must accept any interference received, including interference that may cause undesired operation.
2132
2133
2134