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Version 280.4 by Xiaoling on 2024/01/22 16:37
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1 (% style="text-align:center" %)
2 [[image:image-20230717152014-10.png||height="575" width="339"]]
3
4
5
6 **Table of Contents:**
7
8 {{toc/}}
9
10
11
12
13
14 = 1. Introduction =
15
16 == 1.1 What is LHT65N LoRaWAN (% style="display:none" %) (%%)Temperature & Humidity Sensor ==
17
18
19 (((
20 The Dragino LHT65N (% style="display:none" %) (%%)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.**
21 )))
22
23 (((
24 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.
25 )))
26
27 (((
28 LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
29 )))
30
31 (((
32 LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
33 )))
34
35 (((
36 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.
37 )))
38
39 (((
40 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
41 )))
42
43
44 == 1.2 Features ==
45
46
47 * LoRaWAN v1.0.3 Class A protocol
48 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
49 * AT Commands to change parameters
50 * Remote configure parameters via LoRaWAN Downlink
51 * Firmware upgradeable via program port
52 * Built-in 2400mAh battery for up to 10 years of use.
53 * Built-in Temperature & Humidity sensor
54 * Optional External Sensors
55 * Tri-color LED to indicate working status
56 * Datalog feature (Max 3328 records)
57
58 == 1.3 Specification ==
59
60
61 (% style="color:#037691" %)**Built-in Temperature Sensor:**
62
63 * Resolution: 0.01 °C
64 * Accuracy Tolerance : Typ ±0.3 °C
65 * Long Term Drift: < 0.02 °C/yr
66 * Operating Range: -40 ~~ 85 °C
67
68 (% style="color:#037691" %)**Built-in Humidity Sensor:**
69
70 * Resolution: 0.04 %RH
71 * Accuracy Tolerance : Typ ±3 %RH
72 * Long Term Drift: < 0.02 °C/yr
73 * Operating Range: 0 ~~ 96 %RH
74
75 (% style="color:#037691" %)**External Temperature Sensor:**
76
77 * Resolution: 0.0625 °C
78 * ±0.5°C accuracy from -10°C to +85°C
79 * ±2°C accuracy from -55°C to +125°C
80 * Operating Range: -55 °C ~~ 125 °C
81
82 = 2. Connect LHT65N to IoT Server =
83
84 == 2.1 How does LHT65N work? ==
85
86
87 (((
88 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.
89 )))
90
91 (((
92 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.
93 )))
94
95
96 == 2.2 How to Activate LHT65N? ==
97
98
99 (((
100 The LHT65N has two working modes:
101 )))
102
103 * (((
104 (% 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.
105 )))
106 * (((
107 (% 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. 
108 )))
109
110 (((
111 The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:
112 )))
113
114
115 [[image:image-20230717144740-2.png||height="391" width="267"]]
116
117 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
118 |=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 226px;background-color:#4F81BD;color:white" %)**Action**
119 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT between 1s < time < 3s|(% style="background-color:#f2f2f2; width:117px" %)Test uplink status|(% style="background-color:#f2f2f2; width:225px" %)(((
120 If LHT65N is already Joined to rhe LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has external sensor connected,(% style="color:blue" %)**Blue led** (%%)will blink once. If LHT65N has not external sensor, (% style="color:red" %)**Red led**(%%) will blink once.
121 )))
122 |(% style="background-color:#f2f2f2; width:167px" %)Pressing ACT for more than 3s|(% style="background-color:#f2f2f2; width:117px" %)Active Device|(% style="background-color:#f2f2f2; width:225px" %)(((
123 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network.
124 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after join in network.
125 )))
126 |(% style="background-color:#f2f2f2; width:167px" %)Fast press ACT 5 times.|(% style="background-color:#f2f2f2; width:117px" %)Deactivate Device|(% style="background-color:#f2f2f2; width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means LHT65N is in Deep Sleep Mode.
127
128 == 2.3 Example to join LoRaWAN network ==
129
130
131 (% class="wikigeneratedid" %)
132 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.
133
134
135 (% class="wikigeneratedid" %)
136 [[image:image-20220522232442-1.png||_mstalt="427830" height="387" width="648"]]
137
138
139 (((
140 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:
141 )))
142
143
144 === 2.3.1 Step 1: Create Device n TTN ===
145
146
147 (((
148 Create a device in TTN V3 with the OTAA keys from LHT65N.
149 )))
150
151 (((
152 Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
153 )))
154
155 [[image:image-20230426083319-1.png||height="258" width="556"]]
156
157 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
158
159 Add APP EUI in the application.
160
161
162 [[image:image-20220522232916-3.png||_mstalt="430495"]]
163
164
165 [[image:image-20220522232932-4.png||_mstalt="430157"]]
166
167
168 [[image:image-20220522232954-5.png||_mstalt="431847"]]
169
170
171
172 (% style="color:red" %)**Note: LHT65N use same payload as LHT65.**
173
174
175 [[image:image-20220522233026-6.png||_mstalt="429403"]]
176
177
178 Input APP EUI,  APP KEY and DEV EUI:
179
180
181 [[image:image-20220522233118-7.png||_mstalt="430430"]]
182
183
184 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
185
186
187 (((
188 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.
189 )))
190
191 [[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
192
193
194 == 2.4 Uplink Payload (Fport~=2) ==
195
196
197 (((
198 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
199 )))
200
201 (((
202 After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
203 )))
204
205 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:390px" %)
206 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
207 **Size(bytes)**
208 )))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)(((
209 **2**
210 )))|=(% style="width: 100px;background-color:#4F81BD;color:white" %)(((
211 **2**
212 )))|=(% style="width: 100px;background-color:#4F81BD;color:white" %)(((
213 **2**
214 )))|=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((
215 **1**
216 )))|=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((
217 **4**
218 )))
219 |(% style="width:97px" %)(((
220 Value
221 )))|(% style="width:39px" %)(((
222 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
223 )))|(% style="width:100px" %)(((
224 (((
225 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
226 )))
227 )))|(% style="width:77px" %)(((
228 (((
229 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
230 )))
231 )))|(% style="width:47px" %)(((
232 [[Ext>>||anchor="H2.4.5Ext23"]] #
233 )))|(% style="width:51px" %)(((
234 [[Ext value>>||anchor="H2.4.6Extvalue"]]
235 )))
236
237 * The First 6 bytes: has fix meanings for every LHT65N.
238
239 * The 7th byte (EXT #): defines the external sensor model.
240
241 * The 8^^th^^ ~~ 11^^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.)
242
243 === 2.4.1 Decoder in TTN V3 ===
244
245
246 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.
247
248 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]]
249
250
251 [[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
252
253
254 === 2.4.2 BAT-Battery Info ===
255
256
257 These two bytes of BAT include the battery state and the actually voltage.
258
259 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:477px" %)
260 |=(% style="width: 69px; background-color:#4F81BD;color:white" %)(((
261 **Bit(bit)**
262 )))|=(% style="width: 253px;background-color:#4F81BD;color:white" %)[15:14]|=(% style="width: 155px;background-color:#4F81BD;color:white" %)[13:0]
263 |(% style="width:66px" %)(((
264 Value
265 )))|(% style="width:250px" %)(((
266 BAT Status
267 00(b): Ultra Low ( BAT <= 2.50v)
268 01(b): Low (2.50v <=BAT <= 2.55v)
269 10(b): OK (2.55v <= BAT <=2.65v)
270 11(b): Good (BAT >= 2.65v)
271 )))|(% style="width:152px" %)Actually BAT voltage
272
273 **(b)stands for binary**
274
275
276 [[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
277
278
279 Check the battery voltage for LHT65N.
280
281 * BAT status=(0Xcba4>>14)&0xFF=11 (BIN) ，very good
282
283 * Battery Voltage =0xCBA4&0x3FFF=0x0BA4=2980mV
284
285 === 2.4.3 Built-in Temperature ===
286
287
288 [[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
289
290 * Temperature:  0x0ABB/100=27.47℃
291
292 [[image:image-20220522235639-3.png||_mstalt="432120"]]
293
294 * Temperature:  (0xF5C6-65536)/100=-26.18℃
295
296 === 2.4.4 Built-in Humidity ===
297
298
299 [[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
300
301 * Humidity:    0x025C/10=60.4%
302
303 === 2.4.5 Ext # ===
304
305
306 Bytes for External Sensor:
307
308 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:425px" %)
309 |=(% style="width: 102px; background-color:#4F81BD;color:white" %)**EXT # **Value|=(% style="width: 323px;background-color:#4F81BD;color:white" %)External Sensor Type
310 |(% style="width:102px" %)0x01|(% style="width:319px" %)Sensor E3, Temperature Sensor
311 |(% style="width:102px" %)0x09|(% style="width:319px" %)Sensor E3, Temperature Sensor, Datalog Mod
312 |(% style="width:102px" %)0x06|(% style="width:319px" %)ADC Sensor(use with E2 Cable)
313 |(% style="width:102px" %)0x02|(% style="width:319px" %)TMP117 Sensor
314 |(% style="width:102px" %)0x11|(% style="width:319px" %)SHT31 Sensor
315 |(% style="width:102px" %)0x04|(% style="width:319px" %)Interrupt Mode
316 |(% style="width:102px" %)0x08|(% style="width:319px" %)Counting Mode
317 |(% style="width:102px" %)0x10|(% style="width:319px" %)E2 sensor (TMP117)with Unix Timestamp
318
319 === 2.4.6 Ext value ===
320
321 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
322
323
324 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
325 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
326 **Size(bytes)**
327 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
328 **2**
329 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
330 2
331 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
332 **2**
333 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
334 1
335 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
336 2
337 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
338 2
339 )))
340 |(% style="width:110px" %)(((
341 Value
342 )))|(% style="width:71px" %)(((
343 BAT & BAT Status
344 )))|(% style="width:99px" %)TempC_SHT|(% style="width:132px" %)Hum_SHT|(% style="width:54px" %)(((
345 Status & Ext
346 )))|(% style="width:64px" %)TempC_DS|(% style="width:64px" %)senseless
347
348 [[image:image-20220522235639-5.png||_mstalt="432848"]]
349
350
351 * DS18B20 temp=0x0ADD/100=27.81℃
352
353 The last 2 bytes of data are meaningless
354
355
356
357 [[image:image-20220522235639-6.png||_mstalt="433212"]]
358
359
360 * External temperature= (0xF54F-65536)/100=-27.37℃
361
362 F54F :  (F54F & 8000 == 1) , temp = (F54F - 65536)/100 = 27.37℃
363
364 （0105 & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
365
366 The last 2 bytes of data are meaningless
367
368 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
369
370
371 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
372
373
374 (((
375 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:
376 )))
377
378 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
379 |=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((
380 **Size(bytes)**
381 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
382 **2**
383 )))|=(% style="width: 120px;background-color:#4F81BD;color:white" %)(((
384 **2**
385 )))|=(% style="width: 120px;background-color:#4F81BD;color:white" %)(((
386 **2**
387 )))|=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((
388 **1**
389 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
390 **4**
391 )))
392 |(% style="width:110px" %)(((
393 Value
394 )))|(% style="width:71px" %)(((
395 External temperature
396 )))|(% style="width:99px" %)(((
397 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
398 )))|(% style="width:132px" %)(((
399 BAT Status & [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
400 )))|(% style="width:54px" %)(((
401 Status & Ext
402 )))|(% style="width:64px" %)(((
403 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
404 )))
405
406 * **Battery status & Built-in Humidity**
407
408 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)
409 |=(% style="width: 69px;background-color:#4F81BD;color:white" %)Bit(bit)|=(% style="width: 258px;background-color:#4F81BD;color:white" %)[15:14]|=(% style="width: 134px;background-color:#4F81BD;color:white" %)[11:0]
410 |(% style="width:67px" %)Value|(% style="width:256px" %)(((
411 BAT Status
412 00(b): Ultra Low ( BAT <= 2.50v)
413 01(b): Low  (2.50v <=BAT <= 2.55v)
414 10(b): OK   (2.55v <= BAT <=2.65v)
415 11(b): Good   (BAT >= 2.65v)
416 )))|(% style="width:132px" %)(((
417 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
418 )))
419
420 * **Status & Ext Byte**
421
422 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
423 |(% style="background-color:#4f81bd; color:white; width:60px" %)**Bits**|(% style="background-color:#4f81bd; color:white; width:90px" %)**7**|(% style="background-color:#4f81bd; color:white; width:100px" %)**6**|(% style="background-color:#4f81bd; color:white; width:90px" %)**5**|(% style="background-color:#4f81bd; color:white; width:100px" %)**4**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[3:0]**
424 |(% 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)
425
426 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
427 * (% 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.
428 * (% 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)
429
430 ==== 2.4.6.3 Ext~=6, ADC Sensor(use with E2 Cable) ====
431
432
433 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
434 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
435 **Size(bytes)**
436 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
437 **2**
438 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
439 2
440 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
441 **2**
442 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
443 1
444 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
445 2
446 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
447 2
448 )))
449 |(% style="width:110px" %)(((
450 Value
451 )))|(% style="width:71px" %)(((
452 BAT & BAT Status
453 )))|(% style="width:99px" %)TempC_SHT|(% style="width:132px" %)Hum_SHT|(% style="width:54px" %)(((
454 Status & Ext
455 )))|(% style="width:64px" %)ADC_Value|(% style="width:64px" %)senseless
456
457 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
458
459 be used to power the external ADC sensor; user can control the power on time for this
460
461 (% style="color:blue" %)**sensor by setting:**
462
463 **AT+EXT=6,timeout**  (% style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
464
465 **For example:**
466
467 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
468
469
470 Or use **downlink command A2** to set the same.
471
472 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
473
474 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.
475
476 [[image:image-20220628150112-1.png||_mstalt="427414" height="241" width="285"]]
477
478
479 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
480
481 [[image:image-20220628150714-4.png||_mstalt="431054"]]
482
483
484 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.
485
486
487 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
488
489 [[image:image-20220628151005-5.png||_mstalt="429546"]]
490
491
492 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
493
494 [[image:image-20220628151056-6.png||_mstalt="431873"]]
495
496
497 3) Within range
498
499 [[image:image-20220628151143-7.png||_mstalt="431210"]]
500
501
502
503 ==== 2.4.6.4 Ext~=2 TMP117 Sensor(Since Firmware v1.3) ====
504
505
506 [[image:image-20230717151328-8.png]]
507
508
509 (% style="color:blue" %)**Ext=2,Temperature Sensor(TMP117):**
510
511
512 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
513 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
514 **Size(bytes)**
515 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
516 **2**
517 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
518 2
519 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
520 **2**
521 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
522 1
523 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
524 2
525 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
526 2
527 )))
528 |(% style="width:110px" %)(((
529 Value
530 )))|(% style="width:71px" %)(((
531 BAT & BAT Status
532 )))|(% style="width:99px" %)TempC_SHT|(% style="width:132px" %)Hum_SHT|(% style="width:54px" %)(((
533 Status & Ext
534 )))|(% style="width:64px" %)TempC_Temp117|(% style="width:64px" %)senseless
535
536 [[image:image-20220906102307-7.png||_mstalt="430443"]]
537
538 (% style="color:blue" %)**Interrupt Mode and Counting Mode:**
539
540 The external cable NE2 can be use for MOD4 and MOD8
541
542
543
544
545 ==== 2.4.6.5 Ext~=11 SHT31 Sensor (Since Firmware v1.4.1) ====
546
547
548 [[image:image-20230717151245-7.png]]
549
550 (% style="color:blue" %)**Ext=11,Temperature & Humidity Sensor(SHT31):**
551
552 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
553 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
554 **Size(bytes)**
555 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
556 **2**
557 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
558 2
559 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
560 **2**
561 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
562 1
563 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
564 2
565 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
566 2
567 )))
568 |(% style="width:110px" %)(((
569 Value
570 )))|(% style="width:71px" %)(((
571 BAT & BAT Status
572 )))|(% style="width:99px" %)TempC_SHT|(% style="width:132px" %)Hum_SHT|(% style="width:54px" %)(((
573 Status & Ext
574 )))|(% style="width:64px" %)Ext_TempC_SHT|(% style="width:64px" %)Ext_Hum_SHT
575
576 [[image:SHT31.png]]
577
578
579
580 ==== 2.4.6.6 Ext~=4 Interrupt Mode(Since Firmware v1.3) ====
581
582
583 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will send an uplink when there is a trigger.**
584
585
586 (% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
587
588 (% style="color:#037691" %)**Case 1: Door Sensor.** (%%)3.3v Out for such sensor is just to detect Open/Close.
589
590 In Open State, the power consumption is the same as if there is no probe
591
592 In Close state, the power consumption will be 3uA higher than normal.
593
594 [[image:image-20220906100852-1.png||_mstalt="429156" height="205" width="377"]]
595
596
597 Ext=4,Interrupt Sensor：
598
599 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:504px" %)
600 |(% style="width:101px" %)(((
601 **AT+EXT=4,1**
602 )))|(% style="width:395px" %)(((
603 **Sent uplink packet in both rising and falling interrupt**
604 )))
605 |(% style="width:101px" %)(((
606 **AT+EXT=4,2**
607 )))|(% style="width:395px" %)(((
608 **Sent uplink packet only in falling interrupt**
609 )))
610 |(% style="width:101px" %)(((
611 **AT+EXT=4,3**
612 )))|(% style="width:395px" %)(((
613 **Sent uplink packet only in rising interrupt**
614 )))
615
616 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
617 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
618 **Size(bytes)**
619 )))|=(% style="width: 55px;background-color:#4F81BD;color:white" %)(((
620 **2**
621 )))|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
622 2
623 )))|=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((
624 **2**
625 )))|=(% style="width: 55px;background-color:#4F81BD;color:white" %)(((
626 1
627 )))|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
628 1
629 )))|=(% style="width: 55px;background-color:#4F81BD;color:white" %)(((
630 1
631 )))|=(% style="width: 55px;background-color:#4F81BD;color:white" %)(((
632 3
633 )))|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
634 3
635 )))
636 |(% style="width:110px" %)(((
637 Value
638 )))|(% style="width:71px" %)(((
639 BAT & BAT Status
640 )))|(% style="width:99px" %)TempC_SHT|(% style="width:132px" %)Hum_SHT|(% style="width:54px" %)(((
641 Status & Ext
642 )))|(% style="width:64px" %)Exti_pin_level|(% style="width:64px" %)Exti_status|(% style="width:64px" %)Exit_count|(% style="width:64px" %)Exit_duration
643
644 Trigger by falling edge:
645
646 [[image:image-20220906101145-2.png||_mstalt="428324"]]
647
648
649 Trigger by raising edge:
650
651 [[image:image-20220906101145-3.png||_mstalt="428688"]]
652
653
654
655 ==== 2.4.6.7 Ext~=8 Counting Mode(Since Firmware v1.3) ====
656
657
658 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65N will count for every interrupt and uplink periodically.**
659
660
661 (% 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.
662
663 [[image:image-20220906101320-4.png||_mstalt="427336" height="366" width="698"]]
664
665
666 (% 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
667
668 [[image:image-20220906101320-5.png||_mstalt="427700" height="353" width="696"]]
669
670
671 Ext=8, Counting Sensor ( 4 bytes)：
672
673 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:330px" %)
674 |(% style="width:131px" %)(((
675 **AT+EXT=8,0**
676 )))|(% style="width:195px" %)(((
677 **Count at falling interrupt**
678 )))
679 |(% style="width:131px" %)(((
680 **AT+EXT=8,1**
681 )))|(% style="width:195px" %)(((
682 **Count at rising interrupt**
683 )))
684 |(% style="width:131px" %)(((
685 **AT+SETCNT=60**
686 )))|(% style="width:195px" %)(((
687 **Sent current count to 60**
688 )))
689
690 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:420px" %)
691 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
692 **Size(bytes)**
693 )))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)(((
694 **2**
695 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
696 2
697 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
698 **2**
699 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
700 1
701 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
702 4
703 )))
704 |(% style="width:110px" %)(((
705 Value
706 )))|(% style="width:71px" %)(((
707 BAT & BAT Status
708 )))|(% style="width:99px" %)TempC_SHT|(% style="width:132px" %)Hum_SHT|(% style="width:54px" %)(((
709 Status & Ext
710 )))|(% style="width:64px" %)Exit_count
711
712 [[image:image-20220906101320-6.png||_mstalt="428064"]]
713
714
715 (% style="color:blue" %)**A2 downlink Command：**
716
717 A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
718
719 A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
720
721 A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
722
723 A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
724
725 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)
726
727
728 ==== 2.4.6.8 Ext~=10, E2 sensor (TMP117)with Unix Timestamp(Since firmware V1.3.2) ====
729
730
731 (((
732 Timestamp mode is designed for LHT65N with E2 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:
733 )))
734
735 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
736 |=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((
737 **Size(bytes)**
738 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
739 **2**
740 )))|=(% style="width: 120px;background-color:#4F81BD;color:white" %)(((
741 **2**
742 )))|=(% style="width: 120px;background-color:#4F81BD;color:white" %)(((
743 **2**
744 )))|=(% style="width: 50px;background-color:#4F81BD;color:white" %)(((
745 **1**
746 )))|=(% style="width: 70px;background-color:#4F81BD;color:white" %)(((
747 **4**
748 )))
749 |(% style="width:110px" %)(((
750 Value
751 )))|(% style="width:71px" %)(((
752 External temperature
753 )))|(% style="width:99px" %)(((
754 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
755 )))|(% style="width:132px" %)(((
756 BAT Status & [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
757 )))|(% style="width:54px" %)(((
758 Status & Ext
759 )))|(% style="width:64px" %)(((
760 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
761 )))
762
763 * **Battery status & Built-in Humidity**
764
765 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)
766 |=(% style="width: 69px;background-color:#4F81BD;color:white" %)Bit(bit)|=(% style="width: 258px;background-color:#4F81BD;color:white" %)[15:14]|=(% style="width: 134px;background-color:#4F81BD;color:white" %)[11:0]
767 |(% style="width:67px" %)Value|(% style="width:256px" %)(((
768 BAT Status
769 00(b): Ultra Low ( BAT <= 2.50v)
770 01(b): Low  (2.50v <=BAT <= 2.55v)
771 10(b): OK   (2.55v <= BAT <=2.65v)
772 11(b): Good   (BAT >= 2.65v)
773 )))|(% style="width:132px" %)(((
774 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
775 )))
776
777 * **Status & Ext Byte**
778
779 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
780 |(% style="background-color:#4f81bd; color:white; width:60px" %)**Bits**|(% style="background-color:#4f81bd; color:white; width:90px" %)**7**|(% style="background-color:#4f81bd; color:white; width:100px" %)**6**|(% style="background-color:#4f81bd; color:white; width:90px" %)**5**|(% style="background-color:#4f81bd; color:white; width:100px" %)**4**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[3:0]**
781 |(% 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)
782
783 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
784 * (% 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.
785 * (% 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)
786
787 == 2.5 Show data on Datacake ==
788
789
790 (((
791 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:
792 )))
793
794
795 (((
796 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
797 )))
798
799 (((
800 (% 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.
801 )))
802
803
804 (((
805 Add Datacake:
806 )))
807
808
809 [[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
810
811
812
813 Select default key as Access Key:
814
815
816 [[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
817
818
819 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
820
821
822 [[image:image-20220523000825-9.png||_mstalt="430612" height="366" width="392"]]
823
824
825 [[image:image-20220523000825-10.png||_mstalt="450619" height="413" width="728"]]
826
827
828 == 2.6 Datalog Feature ==
829
830
831 (((
832 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.
833 )))
834
835
836 === 2.6.1 Ways to get datalog via LoRaWAN ===
837
838
839 There are two methods:
840
841 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
842
843
844 (% 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.
845
846
847 (% style="color:red" %)**Note for method 2:**
848
849 * a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
850 * 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.
851
852 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
853
854 [[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]
855
856
857 === 2.6.2 Unix TimeStamp ===
858
859
860 LHT65N uses Unix TimeStamp format based on
861
862
863 [[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
864
865
866 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
867
868 Below is the converter example
869
870 [[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
871
872
873 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
874
875
876 === 2.6.3 Set Device Time ===
877
878
879 (((
880 (% style="color:blue" %)**There are two ways to set device's time:**
881 )))
882
883 (((
884 **1.  Through LoRaWAN MAC Command (Default settings)**
885 )))
886
887 (((
888 User need to set SYNCMOD=1 to enable sync time via MAC command.
889 )))
890
891 (((
892 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).
893 )))
894
895 (((
896 (% 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.**
897 )))
898
899
900 (((
901 **2. Manually Set Time**
902 )))
903
904 (((
905 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
906 )))
907
908
909 === 2.6.4 Poll sensor value ===
910
911
912 User can poll sensor value based on timestamps from the server. Below is the downlink command.
913
914 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:428px" %)
915 |(% style="background-color:#4f81bd; color:white; width:59px" %)**1byte**|(% style="background-color:#4f81bd; color:white; width:128px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:124px" %)**4bytes**|(% style="background-color:#4f81bd; color:white; width:117px" %)**1byte**
916 |(% style="width:58px" %)31|(% style="width:128px" %)Timestamp start|(% style="width:123px" %)Timestamp end|(% style="width:116px" %)Uplink Interval
917
918 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.
919
920 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)
921
922 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00's data
923
924 Uplink Internal =5s, means LHT65N will send one packet every 5s. range 5~~255s.
925
926
927 === 2.6.5 Datalog Uplink payload ===
928
929
930 The Datalog poll reply uplink will use below payload format.
931
932 **Retrieval data payload:**
933
934 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
935 |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
936 **Size(bytes)**
937 )))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 100px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**4**
938 |(% style="width:97px" %)Value|(% style="width:123px" %)[[External sensor data>>||anchor="H2.4.6Extvalue"]]|(% style="width:108px" %)[[Built In Temperature>>||anchor="H2.4.3Built-inTemperature"]]|(% style="width:133px" %)[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]|(% style="width:159px" %)Poll message flag & Ext|(% style="width:80px" %)[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
939
940 **Poll message flag & Ext:**
941
942 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:500px" %)
943 |(% style="background-color:#4f81bd; color:white; width:60px" %)**Bits**|(% style="background-color:#4f81bd; color:white; width:90px" %)**7**|(% style="background-color:#4f81bd; color:white; width:100px" %)**6**|(% style="background-color:#4f81bd; color:white; width:90px" %)**5**|(% style="background-color:#4f81bd; color:white; width:100px" %)**4**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[3:0]**
944 |(% style="width:96px" %)Status&Ext|(% style="width:124px" %)No ACK Message|(% style="width:146px" %)Poll Message Flag|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001)
945
946 (% style="color:blue" %)**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)
947
948 (% style="color:blue" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
949
950 * Poll Message Flag is set to 1.
951
952 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
953
954 For example, in US915 band, the max payload for different DR is:
955
956 (% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data
957
958 (% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
959
960 (% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data
961
962 (% style="color:blue" %)**d) DR3: **(%%)total payload includes 22 entries of data.
963
964 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
965
966
967 **Example:**
968
969 If LHT65N has below data inside Flash:
970
971 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
972 |=(% style="width: 88px; background-color:#4F81BD;color:white" %)Flash Add|=(% style="width: 132px; background-color:#4F81BD;color:white" %)**Unix Time**|=(% style="width: 40px; background-color:#4F81BD;color:white" %)**Ext**|=(% style="width: 105px; background-color:#4F81BD;color:white" %)**BAT voltage**|=(% style="width: 145px; background-color:#4F81BD;color:white" %)**Value**
973 |(% style="width:89px" %)80196E0|(% style="width:133px" %)21/1/19 04:27:03|(% style="width:42px" %)1|(% style="width:103px" %)3145|(% style="width:131px" %)sht temp=22.00 sht hum=32.6 ds temp=327.67
974 |(% style="width:89px" %)80196F0|(% style="width:133px" %)21/1/19 04:28:57|(% style="width:42px" %)1|(% style="width:103px" %)3145|(% style="width:131px" %)sht temp=21.90 sht hum=33.1 ds temp=327.67
975 |(% style="width:89px" %)8019600|(% style="width:133px" %)21/1/19 04:30:30|(% style="width:42px" %)1|(% style="width:103px" %)3145|(% style="width:131px" %)sht temp=21.81 sht hum=33.4 ds temp=327.67
976 |(% style="width:89px" %)8019610|(% style="width:133px" %)21/1/19 04:40:30|(% style="width:42px" %)1|(% style="width:103px" %)3145|(% style="width:131px" %)sht temp=21.65 sht hum=33.7 ds temp=327.67
977 |(% style="width:89px" %)8019620|(% style="width:133px" %)21/1/19 04:50:30|(% style="width:42px" %)1|(% style="width:103px" %)3147|(% style="width:131px" %)sht temp=21.55 sht hum=34.1 ds temp=327.67
978 |(% style="width:89px" %)8019630|(% style="width:133px" %)21/1/19 04:00:30|(% style="width:42px" %)1|(% style="width:103px" %)3149|(% style="width:131px" %)sht temp=21.50 sht hum=34.1 ds temp=327.67
979 |(% style="width:89px" %)8019640|(% style="width:133px" %)21/1/19 04:10:30|(% style="width:42px" %)1|(% style="width:103px" %)3149|(% style="width:131px" %)sht temp=21.43 sht hum=34.6 ds temp=327.67
980 |(% style="width:89px" %)8019650|(% style="width:133px" %)21/1/19 04:20:30|(% style="width:42px" %)1|(% style="width:103px" %)3151|(% style="width:131px" %)sht temp=21.35 sht hum=34.9 ds temp=327.67
981
982 If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
983
984 Where : Start time: 60065F97 = time 21/1/19 04:27:03
985
986 Stop time: 60066DA7= time 21/1/19 05:27:03
987
988
989 **LHT65N will uplink this payload.**
990
991 [[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]
992
993
994 __**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
995
996 Where the first 11 bytes is for the first entry:
997
998 7FFF089801464160065F97
999
1000 Ext sensor data=0x7FFF/100=327.67
1001
1002 Temp=0x088E/100=22.00
1003
1004 Hum=0x014B/10=32.6
1005
1006 poll message flag & Ext=0x41,means reply data,Ext=1
1007
1008 Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
1009
1010
1011 == 2.7 Alarm Mode & Feature "Multi sampling, one uplink" ==
1012
1013
1014 (((
1015 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.
1016 )))
1017
1018 (((
1019 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
1020
1021
1022 === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) ===
1023
1024
1025 **Internal GXHT30 temperature alarm(Acquisition time: fixed at one minute)**
1026
1027 (((
1028 (% class="box infomessage" %)
1029 (((
1030 **AT+WMOD=3**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1031
1032 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1033
1034 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1035
1036 (% _mstmutation="1" %)**AT+ARTEMP=? **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
1037
1038 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1039
1040 **AT+LEDALARM=1** :       Enable LED visual Alarm.
1041 )))
1042 )))
1043
1044 (% style="color:#4f81bd" %)**Downlink Command:**
1045
1046 AT+WMOD=1:  A501  , AT+WMOD=0 :  A600
1047
1048 AT+CITEMP=1 : A60001
1049
1050 AT+ARTEMP=1,60  :  A70001003C
1051
1052 AT+ARTEMP=-16,60 :  A7FFF0003C
1053
1054 AT+LEDALARM=1  :  3601
1055
1056
1057 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1058
1059 Total bytes: 8 bytes
1060
1061 **Example: **AA0100010001003C
1062
1063 WMOD=01
1064
1065 CITEMP=0001
1066
1067 TEMPlow=0001
1068
1069 TEMPhigh=003C
1070
1071
1072 **DS18B20 and TMP117 Threshold Alarm**
1073
1074 **~ AT+WMOD=1,60,-10,20**
1075
1076 (% style="color:#4f81bd" %)**Downlink Command:**
1077
1078 **Example: **A5013CFC180014
1079
1080 MOD=01
1081
1082 CITEMP=3C(S)
1083
1084 TEMPlow=FC18
1085
1086 TEMPhigh=0014
1087
1088
1089 **Fluctuation alarm for DS18B20 and TMP117(Acquisition time: minimum 1s)**
1090
1091 **AT+WMOD=2,60,5** 
1092
1093 (% style="color:#4f81bd" %)**Downlink Command:**
1094
1095 **Example: **A5023C05
1096
1097 MOD=02
1098
1099 CITEMP=3C(S)
1100
1101 temperature fluctuation=05
1102
1103
1104 **Sampling multiple times and uplink together**
1105
1106 **AT+WMOD=3,1,60,20,-16,32,1**   
1107
1108 Explain:
1109
1110 * (% style="color:#037691" %)**parameter1: **(%%)Set Working Mode to **Mode 3**
1111 * (% style="color:#037691" %)**parameter2:**(%%) Set the temperature sampling mode to** 1**(1:DS18B20;2:TMP117;3:** **Internal GXHT30).
1112 * (% style="color:#037691" %)**parameter3: **(%%)Sampling Interval is **60**s.
1113 * (% style="color:#037691" %)**parameter4: **(%%)When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
1114 * (% style="color:#037691" %)**parameter5 & parameter6: **(%%)Temperature alarm range is **-16** to **32**°C,
1115 * (% style="color:#037691" %)**parameter7:**(%%) 1 to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
1116
1117 (% style="color:#4f81bd" %)**Downlink Command:**
1118
1119 **Example: **A50301003C14FFF0002001
1120
1121 MOD=03
1122
1123 TEMP=DS18B20
1124
1125 CITEMP=003C(S)
1126
1127 Total number of acquisitions=14
1128
1129 TEMPlow=FFF0
1130
1131 TEMPhigh=0020
1132
1133 ARTEMP=01
1134
1135
1136 **Uplink payload( Fport=3)**
1137
1138 **Example: CBEA**01**0992**//0A41//**09C4**
1139
1140 BatV=CBEA
1141
1142 TEMP=DS18B20
1143
1144 Temp1=0992  ~/~/ 24.50℃
1145
1146 Temp2=0A41  ~/~/ 26.25℃
1147
1148 Temp3=09C4  ~/~/ 25.00℃
1149
1150 (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
1151
1152 (% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
1153 )))
1154
1155
1156 === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
1157
1158
1159 (% class="box infomessage" %)
1160 (((
1161 (((
1162 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
1163 )))
1164
1165 (((
1166 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
1167 )))
1168
1169 (((
1170 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
1171 )))
1172
1173 (((
1174 (% _mstmutation="1" %)**AT+ARTEMP=? **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
1175 )))
1176
1177 (((
1178 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
1179 )))
1180 )))
1181
1182 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
1183
1184 Total bytes: 8 bytes
1185
1186 **Example:**AA0100010001003C
1187
1188 WMOD=01
1189
1190 CITEMP=0001
1191
1192 TEMPlow=0001
1193
1194 TEMPhigh=003C
1195
1196
1197 == 2.8 LED Indicator ==
1198
1199
1200 The LHT65 has a triple color LED which for easy showing different stage .
1201
1202 While user press ACT button, the LED will work as per LED status with ACT button.
1203
1204 In a normal working state:
1205
1206 * For each uplink, the BLUE LED or RED LED will blink once.
1207 BLUE LED when external sensor is connected.
1208 * RED LED when external sensor is not connected
1209 * For each success downlink, the PURPLE LED will blink once
1210
1211 == 2.9 installation ==
1212
1213
1214 [[image:image-20220516231650-1.png||_mstalt="428597" height="436" width="428"]]
1215
1216
1217 = 3. Sensors and Accessories =
1218
1219 == 3.1 E2 Extension Cable ==
1220
1221
1222 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
1223
1224
1225 **1m long breakout cable for LHT65N. Features:**
1226
1227 * (((
1228 Use for AT Command, works for both LHT52/LHT65N
1229 )))
1230 * (((
1231 Update firmware for LHT65N, works for both LHT52/LHT65N
1232 )))
1233 * (((
1234 Supports ADC mode to monitor external ADC
1235 )))
1236 * (((
1237 Supports Interrupt mode
1238 )))
1239 * (((
1240 Exposed All pins from the LHT65N Type-C connector.
1241
1242
1243
1244 )))
1245
1246 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
1247
1248
1249 == 3.2 E3 Temperature Probe ==
1250
1251
1252 [[image:image-20220515080154-4.png||_mstalt="434681" alt="photo-20220515080154-4.png" height="182" width="161"]] [[image:image-20220515080330-5.png||_mstalt="428792" height="201" width="195"]]
1253
1254
1255 Temperature sensor with 2 meters cable long
1256
1257 * Resolution: 0.0625 °C
1258 * ±0.5°C accuracy from -10°C to +85°C
1259 * ±2°C accuracy from -55°C to +125°C
1260 * Operating Range: -40 ~~ 125 °C
1261 * Working voltage 2.35v ~~ 5v
1262
1263 == 3.3 E31F Temperature Probe ==
1264
1265
1266 [[image:65N-E31F-1.jpg||height="169" width="170"]] [[image:image-20230717151424-9.png||height="221" width="204"]](% style="display:none" %)
1267
1268
1269 Temperature sensor with 1 meters cable long
1270
1271
1272 **Built-in Temperature Sensor:**
1273
1274 * Resolution: 0.01 °C
1275 * Accuracy Tolerance : Typ ±0.3 °C
1276 * Long Term Drift: < 0.02 °C/yr
1277 * Operating Range: -40 ~~ 80 °C
1278
1279 **Built-in Humidity Sensor:**
1280
1281 * Resolution: 0.04 % RH
1282 * Accuracy Tolerance : Typ ±3 % RH
1283 * Long Term Drift: < 0.02 °C/yr
1284 * Operating Range: 0 ~~ 96 % RH
1285
1286 **External Temperature Sensor :**
1287
1288 * Resolution: 0.01 °C
1289 * Accuracy Tolerance : Typical ±0.3 °C
1290 * Long Term Drift: < 0.02 °C/yr
1291 * Operating Range: -40 ~~ 125 °C
1292
1293 **External Humidity Sensor :**
1294
1295 * Resolution: 0.04 % RH
1296 * Accuracy Tolerance : Typ ±3 % RH
1297 * Long Term Drift: < 0.02 °C/yr
1298 * Operating Range: 0 ~~ 96 % RH
1299
1300 = 4. Configure LHT65N via AT command or LoRaWAN downlink =
1301
1302
1303 (((
1304 Use can configure LHT65N via AT Command or LoRaWAN Downlink.
1305 )))
1306
1307 * (((
1308 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1309 )))
1310
1311 * (((
1312 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1313 )))
1314
1315 (((
1316 There are two kinds of commands to configure LHT65N, they are:
1317 )))
1318
1319 * (((
1320 (% style="color:#4f81bd" %)**General Commands**.
1321 )))
1322
1323 (((
1324 These commands are to configure:
1325 )))
1326
1327 1. (((
1328 General system settings like: uplink interval.
1329 )))
1330 1. (((
1331 LoRaWAN protocol & radio-related commands.
1332 )))
1333
1334 (((
1335 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]]
1336 )))
1337
1338 * (((
1339 (% style="color:#4f81bd" %)**Commands special design for LHT65N**
1340 )))
1341
1342 (((
1343 These commands are only valid for LHT65N, as below:
1344 )))
1345
1346
1347 == 4.1 Set Transmit Interval Time ==
1348
1349
1350 Feature: Change LoRaWAN End Node Transmit Interval.
1351
1352
1353 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1354
1355 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:501px" %)
1356 |(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:166px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:180px" %)**Response**
1357 |(% style="width:155px" %)AT+TDC=?|(% style="width:162px" %)Show current transmit Interval|(% style="width:177px" %)30000 OK the interval is 30000ms = 30s
1358 |(% style="width:155px" %)AT+TDC=60000|(% style="width:162px" %)Set Transmit Interval|(% style="width:177px" %)OK Set transmit interval to 60000ms = 60 seconds
1359
1360 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1361
1362 Format: Command Code (0x01) followed by 3 bytes time value.
1363
1364 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1365
1366 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1367
1368 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1369
1370 == 4.2 Set External Sensor Mode ==
1371
1372
1373 Feature: Change External Sensor Mode.
1374
1375 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1376
1377 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:468px" %)
1378 |(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:153px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:160px" %)**Response**
1379 |(% style="width:155px" %)AT+EXT=?|(% style="width:151px" %)Get current external sensor mode|(% style="width:158px" %)1 OK External Sensor mode =1
1380 |(% style="width:155px" %)AT+EXT=1|(% colspan="2" rowspan="1" style="width:309px" %)Set external sensor mode to 1
1381 |(% style="width:155px" %)AT+EXT=9|(% colspan="2" rowspan="1" style="width:309px" %)Set to external DS18B20 with timestamp
1382
1383 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1384
1385 Total bytes: 2 ~~ 5 bytes
1386
1387 **Example:**
1388
1389 * 0xA201: Set external sensor type to E1
1390
1391 * 0xA209: Same as AT+EXT=9
1392
1393 * 0xA20702003c: Same as AT+SETCNT=60
1394
1395 == 4.3 Enable/Disable uplink Temperature probe ID ==
1396
1397
1398 (((
1399 Feature: If PID is enabled, device will send the temperature probe ID on:
1400 )))
1401
1402 * (((
1403 First Packet after OTAA Join
1404 )))
1405 * (((
1406 Every 24 hours since the first packet.
1407 )))
1408
1409 (((
1410 PID is default set to disable (0)
1411
1412
1413 )))
1414
1415 (% style="color:#4f81bd" %)**AT Command:**
1416
1417 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:381px" %)
1418 |(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:138px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:88px" %)**Response**
1419 |(% style="width:155px" %)AT+PID=1|(% style="width:136px" %)Enable PID uplink|(% style="width:86px" %)OK
1420
1421 (% style="color:#4f81bd" %)**Downlink Command:**
1422
1423 * **0xA800**  **~-~->** AT+PID=0
1424 * **0xA801**     **~-~->** AT+PID=1
1425
1426 == 4.4 Set Password ==
1427
1428
1429 Feature: Set device password, max 9 digits
1430
1431 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1432
1433 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:372px" %)
1434 |(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:128px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:89px" %)**Response**
1435 |(% style="width:155px" %)AT+PWORD=?|(% style="width:124px" %)Show password|(% style="width:86px" %)(((
1436 123456
1437
1438 OK
1439 )))
1440 |(% style="width:155px" %)AT+PWORD=999999|(% style="width:124px" %)Set password|(% style="width:86px" %)OK
1441
1442 (% style="color:#4f81bd" %)**Downlink Command:**
1443
1444 No downlink command for this feature.
1445
1446
1447 == 4.5 Quit AT Command ==
1448
1449
1450 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1451
1452 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1453
1454 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:433px" %)
1455 |(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:191px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:87px" %)**Response**
1456 |(% style="width:155px" %)AT+DISAT|(% style="width:191px" %)Quit AT Commands mode|(% style="width:86px" %)OK
1457
1458 (% style="color:#4f81bd" %)**Downlink Command:**
1459
1460 No downlink command for this feature.
1461
1462
1463 == 4.6 Set to sleep mode ==
1464
1465
1466 Feature: Set device to sleep mode
1467
1468 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1469 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1470
1471 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1472
1473 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:513px" %)
1474 |(% style="background-color:#4f81bd; color:white; width:155px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:140px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:218px" %)**Response**
1475 |(% style="width:155px" %)AT+SLEEP|(% style="width:139px" %)Set to sleep mode|(% style="width:213px" %)(((
1476 Clear all stored sensor data…
1477
1478 OK
1479 )))
1480
1481 (% style="color:#4f81bd" %)**Downlink Command:**
1482
1483 * There is no downlink command to set to Sleep mode.
1484
1485 == 4.7 Set system time ==
1486
1487
1488 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1489
1490 (% style="color:#4f81bd" %)**AT Command:**
1491
1492 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:506px" %)
1493 |(% style="background-color:#4f81bd; color:white; width:188px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:318px" %)**Function**
1494 |(% style="width:154px" %)AT+TIMESTAMP=1611104352|(% style="width:285px" %)(((
1495 OK
1496
1497 Set System time to 2021-01-20 00:59:12
1498 )))
1499
1500 (% style="color:#4f81bd" %)**Downlink Command:**
1501
1502 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1503
1504
1505 == 4.8 Set Time Sync Mode ==
1506
1507
1508 (((
1509 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1510 )))
1511
1512 (((
1513 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.
1514 )))
1515
1516 (% style="color:#4f81bd" %)**AT Command:**
1517
1518 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:475px" %)
1519 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:317px" %)**Function**
1520 |(% style="width:156px" %)AT+SYNCMOD=1|(% style="width:315px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
1521
1522 (% style="color:#4f81bd" %)**Downlink Command:**
1523
1524 0x28 01  ~/~/  Same As AT+SYNCMOD=1
1525 0x28 00  ~/~/  Same As AT+SYNCMOD=0
1526
1527
1528 == 4.9 Set Time Sync Interval ==
1529
1530
1531 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1532
1533 (% style="color:#4f81bd" %)**AT Command:**
1534
1535 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:472px" %)
1536 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:314px" %)**Function**
1537 |(% style="width:156px" %)AT+SYNCTDC=0x0A |(% style="width:311px" %)Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
1538
1539 (% style="color:#4f81bd" %)**Downlink Command:**
1540
1541 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1542
1543
1544 == 4.10 Get data ==
1545
1546
1547 Feature: Get the current sensor data.
1548
1549 (% style="color:#4f81bd" %)**AT Command:**
1550
1551 * **AT+GETSENSORVALUE=0**      ~/~/ The serial port gets the reading of the current sensor
1552 * **AT+GETSENSORVALUE=1**      ~/~/ The serial port gets the current sensor reading and uploads it.
1553
1554 == 4.11 Print data entries base on page ==
1555
1556
1557 Feature: Print the sector data from start page to stop page (max is 416 pages).
1558
1559 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1560
1561 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1562 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1563 |(% style="width:156px" %)(((
1564 AT+PDTA=13
1565 Print page 1 to 3
1566 )))|(% style="width:311px" %)(((
1567 8019500 19/6/26 16:48 1 2992 sht temp=28.21 sht hum=71.5 ds temp=27.31
1568 8019510 19/6/26 16:53 1 2994 sht temp=27.64 sht hum=69.3 ds temp=26.93
1569 8019520 19/6/26 16:58 1 2996 sht temp=28.39 sht hum=72.0 ds temp=27.06
1570 8019530 19/6/26 17:03 1 2996 sht temp=27.97 sht hum=70.4 ds temp=27.12
1571 8019540 19/6/26 17:08 1 2996 sht temp=27.80 sht hum=72.9 ds temp=27.06
1572 8019550 19/6/26 17:13 1 2998 sht temp=27.30 sht hum=72.4 ds temp=26.68
1573 8019560 19/6/26 17:22 1 2992 sht temp=26.27 sht hum=62.3 ds temp=26.56
1574 8019570
1575 8019580
1576 8019590
1577 80195A0
1578 80195B0
1579 80195C0
1580 80195D0
1581 80195E0
1582 80195F0
1583
1584 OK
1585 )))
1586
1587 (% style="color:#4f81bd" %)**Downlink Command:**
1588
1589 No downlink commands for feature
1590
1591
1592 == 4.12 Print last few data entries ==
1593
1594
1595 Feature: Print the last few data entries
1596
1597 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1598
1599 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1600 |(% style="background-color:#4f81bd; color:white; width:158px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:352px" %)**Function**
1601 |(% style="width:156px" %)(((
1602 AT+PLDTA=5
1603 Print last 5 entries
1604 )))|(% style="width:311px" %)(((
1605 Stop Tx and RTP events when read sensor data
1606 1 19/6/26 13:59 1 3005 sht temp=27.09 sht hum=79.5 ds temp=26.75
1607 2 19/6/26 14:04 1 3007 sht temp=26.65 sht hum=74.8 ds temp=26.43
1608 3 19/6/26 14:09 1 3007 sht temp=26.91 sht hum=77.9 ds temp=26.56
1609 4 19/6/26 14:15 1 3007 sht temp=26.93 sht hum=76.7 ds temp=26.75
1610 5 19/6/26 14:20 1 3007 sht temp=26.78 sht hum=76.6 ds temp=26.43
1611 Start Tx and RTP events
1612 OK
1613 )))
1614
1615 (% style="color:#4f81bd" %)**Downlink Command:**
1616
1617 No downlink commands for feature
1618
1619
1620 == 4.13 Clear Flash Record ==
1621
1622
1623 Feature: Clear flash storage for data log feature.
1624
1625 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1626
1627 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:503px" %)
1628 |(% style="background-color:#4f81bd; color:white; width:157px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:137px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:209px" %)**Response**
1629 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1630 Clear all stored sensor data…
1631
1632 OK
1633 )))
1634
1635 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1636
1637 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1638
1639 == 4.14 Auto Send None-ACK messages ==
1640
1641
1642 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.
1643
1644 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1645
1646 The default factory setting is 0
1647
1648 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:367px" %)
1649 |=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 121px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 88px;background-color:#4F81BD;color:white" %)**Response**
1650 |(% style="width:158px" %)AT+PNACKMD=1|(% style="width:118px" %)Poll None-ACK message|(% style="width:87px" %)OK
1651
1652 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1653
1654 * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1655
1656 == 4.15 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm(Since firmware 1.3.0) ==
1657
1658
1659 Feature: Set internal and external temperature sensor alarms.
1660
1661 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
1662 |=(% style="width: 250px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 200px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Response**
1663 |(% style="width:268px" %)AT+WMOD=parameter1,parameter2,parameter3,parameter4|(% style="width:255px" %)Set internal and external temperature sensor alarms|(% style="width:181px" %)OK
1664
1665 (% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
1666
1667 (% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
1668
1669 0): Cancel
1670
1671 1): Threshold alarm
1672
1673 2): Fluctuation alarm
1674
1675 3): Sampling multiple times and uplink together
1676
1677
1678 (% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
1679
1680 (% 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.**
1681
1682
1683 (% style="color:#037691" %) **Parameter 3 and parameter 4:**
1684
1685 **1):  If Alarm Mode is set to 1:** Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
1686
1687 Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
1688
1689
1690 **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.
1691
1692 Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
1693
1694 If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
1695
1696
1697 **3): If Alarm Mode is set to 3:**
1698
1699 * (% style="color:#037691" %)**parameter1: **(%%)Set Working Mode to **Mode 3**
1700 * (% style="color:#037691" %)**parameter2:**(%%) Set the temperature sampling mode to** 1**(1:DS18B20;2:TMP117;3:** **Internal GXHT30).
1701 * (% style="color:#037691" %)**parameter3: **(%%)Sampling Interval is **60**s.
1702 * (% style="color:#037691" %)**parameter4: **(%%)When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
1703 * (% style="color:#037691" %)**parameter5 & parameter6: **(%%)Temperature alarm range is **-16** to **32**°C,
1704 * (% style="color:#037691" %)**parameter7:**(%%) 1 to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
1705
1706 (% style="color:#4f81bd" %)**Downlink Command: 0xA5**
1707
1708 0xA5 00 ~-~- AT+WMOD=0.
1709
1710 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 )
1711
1712 0XA5 01 0A F9 C0 29 04 ~-~-AT+WMOD=1,10,-16,105(Need to convert -16 to -1600 for calculation，-1600(DEC)=FFFFFFFFFFFFF9C0(HEX)  FFFFFFFFFFFFF9C0(HEX) +10000(HEX)=F9C0(HEX))
1713
1714 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1715
1716 0xA5 03 01 00 3C 14 FF F0 00 20 01~-~-AT+WMOD=3,1,60,20,-16,32,1
1717
1718 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.
1719
1720
1721 = 5. Battery & How to replace =
1722
1723 == 5.1 Battery Type ==
1724
1725
1726 (((
1727 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.
1728 )))
1729
1730 (((
1731 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1732
1733 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
1734 )))
1735
1736 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1737
1738
1739 == 5.2 Replace Battery ==
1740
1741
1742 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.
1743
1744 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
1745
1746
1747 == 5.3 Battery Life Analyze ==
1748
1749
1750 (((
1751 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:
1752 [[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]]
1753 )))
1754
1755
1756 (((
1757 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]]
1758 )))
1759
1760
1761 = 6. FAQ =
1762
1763 == 6.1 How to connect to LHT65N UART interface? ==
1764
1765 The LHT65N has the UART interface in its Type-C. The UART Interface can be used for
1766
1767 * Send AT Commands, and get output from LHT65N
1768 * Upgrade firmwre of LHT65N.
1769
1770 The hardware connection is: **PC <~-~-> USB to TTL Adapter <~-~-> Jump wires <~-~-> Type-C Adapter <~-~-> LHT65N**
1771
1772
1773 **Option of USB TTL adapter:**
1774
1775 * CP2101 USB TTL Adapter
1776 * CH340 USB TTL Adapter
1777 * FT232 USB TTL Adapter
1778
1779 **Option of Type-C Adapter:**
1780
1781 [[image:image-20240122103221-3.png||height="694" width="1039"]]
1782
1783
1784 **Connection:**
1785
1786 * (% style="background-color:yellow" %)**USB to TTL GND <~-~-> LHT65N GND**
1787 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> LHT65N TXD**
1788 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> LHT65N RXD**
1789
1790 (((
1791
1792
1793 Connection Example:
1794
1795 [[image:1655802313617-381.png||_mstalt="293917"]]
1796
1797
1798 [[image:image-20240122092100-1.jpeg||height="466" width="643"]]
1799
1800
1801 == 6.2 How to use AT Commands? ==
1802
1803 First, Connect PC and LHT65N via USB TTL adapter as FAQ 6.1
1804
1805 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.
1806 )))
1807
1808
1809 Input password and ATZ to activate LHT65N,As shown below:
1810
1811 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1812
1813
1814 AT Command List is as below:
1815
1816 AT+<CMD>? :  Help on <CMD>
1817
1818 AT+<CMD> :  Run <CMD>
1819
1820 AT+<CMD>=<value> :  Set the value
1821
1822 AT+<CMD>=? :  Get the value
1823
1824 AT+DEBUG:  Set more info output
1825
1826 ATZ:  Trig a reset of the MCU
1827
1828 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1829
1830 AT+DEUI:  Get or Set the Device EUI
1831
1832 AT+DADDR:  Get or Set the Device Address
1833
1834 AT+APPKEY:  Get or Set the Application Key
1835
1836 AT+NWKSKEY:  Get or Set the Network Session Key
1837
1838 AT+APPSKEY:  Get or Set the Application Session Key
1839
1840 AT+APPEUI:  Get or Set the Application EUI
1841
1842 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1843
1844 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1845
1846 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1847
1848 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1849
1850 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1851
1852 AT+RX2FQ:  Get or Set the Rx2 window frequency
1853
1854 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1855
1856 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1857
1858 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1859
1860 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1861
1862 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1863
1864 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1865
1866 AT+NWKID:  Get or Set the Network ID
1867
1868 AT+FCU:  Get or Set the Frame Counter Uplink
1869
1870 AT+FCD:  Get or Set the Frame Counter Downlink
1871
1872 AT+CLASS:  Get or Set the Device Class
1873
1874 AT+JOIN:  Join network
1875
1876 AT+NJS:  Get the join status
1877
1878 AT+SENDB:  Send hexadecimal data along with the application port
1879
1880 AT+SEND:  Send text data along with the application port
1881
1882 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1883
1884 AT+RECV:  Print last received data in raw format
1885
1886 AT+VER:  Get current image version and Frequency Band
1887
1888 AT+CFM:  Get or Set the confirmation mode (0-1)
1889
1890 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1891
1892 AT+SNR:  Get the SNR of the last received packet
1893
1894 AT+RSSI:  Get the RSSI of the last received packet
1895
1896 AT+TDC:  Get or set the application data transmission interval in ms
1897
1898 AT+PORT:  Get or set the application port
1899
1900 AT+DISAT:  Disable AT commands
1901
1902 AT+PWORD: Set password, max 9 digits
1903
1904 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1905
1906 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1907
1908 AT+PDTA:  Print the sector data from start page to stop page
1909
1910 AT+PLDTA:  Print the last few sets of data
1911
1912 AT+CLRDTA:  Clear the storage, record position back to 1st
1913
1914 AT+SLEEP:  Set sleep mode
1915
1916 AT+EXT:  Get or Set external sensor model
1917
1918 AT+BAT:  Get the current battery voltage in mV
1919
1920 AT+CFG:  Print all configurations
1921
1922 AT+WMOD:  Get or Set Work Mode
1923
1924 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1925
1926 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1927
1928 AT+SETCNT:  Set the count at present
1929
1930 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1931
1932 AT+RPL:  Get or set response level
1933
1934 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1935
1936 AT+LEAPSEC:  Get or Set Leap Second
1937
1938 AT+SYNCMOD:  Get or Set time synchronization method
1939
1940 AT+SYNCTDC:  Get or set time synchronization interval in day
1941
1942 AT+PID:  Get or set the PID
1943
1944
1945 == 6.3 How to use Downlink commands? ==
1946
1947
1948 **Downlink commands:**
1949
1950
1951 (% style="color:blue" %)**TTN:**
1952
1953 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1954
1955
1956
1957 (% style="color:blue" %)**Helium: **
1958
1959 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1960
1961
1962
1963 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1964
1965
1966 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1967
1968
1969 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1970
1971
1972
1973 (% style="color:blue" %)**AWS-IOT :**
1974
1975 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1976
1977
1978 == 6.4 How to change the uplink interval? ==
1979
1980
1981 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/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
1982
1983
1984 == 6.5 How to upgrade firmware? ==
1985
1986
1987 === 6.5.1 Update a firmware via TremoProgrammer software ===
1988
1989
1990 (% style="color:blue" %)**Step1**(%%): Install [[TremoProgrammer>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AAAnJD_qGZ42bB52o4UmH9v9a/LHT65N%20Temperature%20%26%20Humidity%20Sensor/tool?dl=0&subfolder_nav_tracking=1]]  first.
1991
1992 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1993
1994
1995
1996 (% _mstmutation="1" style="color:blue" %)**Step2**(%%): Hardware Connection
1997
1998 Connect PC and LHT65N via USB TTL adapter .
1999
2000 (% style="color:red" %)**Note: Burn mode: Port4 (BOOT_CTL) of E2 cable connects 3V3 of USB-TTL.**
2001
2002 (% style="color:red" %)** Reset node:  Short-circuit the port3(RST) of the E2 cable to GND.**
2003
2004 [[image:image-20240122105429-4.png||height="326" width="452"]](% style="display:none" %) [[image:image-20240122115332-5.jpeg||height="324" width="401"]][[image:image-20240122134009-1.jpeg||height="332" width="411"]]
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||_mstalt="431028"]]
2010
2011
2012 Reset node: Short-circuit the port3(RST) of the E2 cable to GND.
2013
2014 Then click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
2015
2016
2017 When this interface appears, it indicates that the download has been completed.
2018
2019 [[image:image-20220620160723-8.png||_mstalt="430703"]]
2020
2021
2022 Finally, Disconnect Port4 of E2 cable, reset the node again (Port3 shorted GND), and the node exits burning mode.
2023
2024
2025 === 6.5.2 Update a firmware via Dragino Sensor Manager Utility.exe ===
2026
2027
2028 **Hardware Connection:**
2029
2030 [[image:1655802313617-381.png||_mstalt="293917"]]
2031
2032
2033 Please refer to the following links for software download and burning instructions:
2034
2035 [[UART Access for LoRa ST v4 base model - DRAGINO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.2UpdateFirmware28Assumethedevicealreadyhaveabootloader29]]
2036
2037
2038 == 6.6 Why can't I see the datalog information ==
2039
2040
2041 ~1. The time is not aligned, and the correct query command is not used.
2042
2043 2. Decoder error, did not parse the datalog data, the data was filtered.
2044
2045
2046
2047 = 7. Order Info =
2048
2049
2050 Part Number: (% style="color:#4f81bd" %)** LHT65N-XX-YY**
2051
2052 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
2053
2054 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
2055 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
2056 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
2057 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
2058 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
2059 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
2060 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
2061 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
2062
2063 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
2064
2065 * (% style="color:red" %)**E3**(%%): External Temperature Probe
2066
2067 = 8. Packing Info =
2068
2069
2070 **Package Includes**:
2071
2072 * LHT65N Temperature & Humidity Sensor x 1
2073 * Optional external sensor
2074
2075 = 9. Reference material =
2076
2077
2078 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
2079
2080 = 10. FCC Warning =
2081
2082
2083 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
2084
2085 (1) This device may not cause harmful interference;
2086
2087 (2) this device must accept any interference received, including interference that may cause undesired operation.