Last modified by Bei Jinggeng on 2023/09/28 17:54
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1 (% style="text-align:center" %)
2 [[image:image-20230615150345-1.png||height="745" width="693"]]
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7
8
9 **Table of Contents：**
10
11 {{toc/}}
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15
16
17 = 1. Introduction =
18
19 == 1.1 What is LHT65S Temperature & Humidity Sensor ==
20
21
22 (((
23 The Dragino LHT65S Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% style="color:#4f81bd" %)**Temperature Sensor.**
24 )))
25
26 (((
27 The LHT65S allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
28 )))
29
30 (((
31 LHT65S has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
32 )))
33
34 (((
35 LHT65S is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
36 )))
37
38 (((
39 LHT65S supports (% style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
40 )))
41
42 (((
43 *The actual battery life depends on how often to send data, please see the battery analyzer chapter.
44 )))
45
46
47 == 1.2 Features ==
48
49
50 * LoRaWAN v1.0.3 Class A protocol
51 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
52 * AT Commands to change parameters
53 * Remote configure parameters via LoRaWAN Downlink
54 * Firmware upgradeable via program port
55 * Built-in 2400mAh battery for up to 10 years of use.
56 * Built-in Temperature & Humidity sensor
57 * Optional External Sensors
58 * Tri-color LED to indicate working status
59 * Datalog feature (Max 3328 records)
60
61 == 1.3 Specification ==
62
63
64 (% style="color:#037691" %)**Built-in Temperature Sensor:**
65
66 * Resolution: 0.01 °C
67 * Accuracy Tolerance : Typ ±0.3 °C
68 * Long Term Drift: < 0.02 °C/yr
69 * Operating Range: -40 ~~ 85 °C
70
71 (% style="color:#037691" %)**Built-in Humidity Sensor:**
72
73 * Resolution: 0.04 %RH
74 * Accuracy Tolerance : Typ ±3 %RH
75 * Long Term Drift: < 0.02 °C/yr
76 * Operating Range: 0 ~~ 96 %RH
77
78 (% style="color:#037691" %)**External Temperature Sensor:**
79
80 * Resolution: 0.0625 °C
81 * ±0.5°C accuracy from -10°C to +85°C
82 * ±2°C accuracy from -55°C to +125°C
83 * Operating Range: -55 °C ~~ 125 °C
84
85 = 2. Connect LHT65S to IoT Server =
86
87 == 2.1 How does LHT65S work? ==
88
89
90 (((
91 LHT65S is configured as LoRaWAN OTAA Class A mode by default. Each LHT65S is shipped with a worldwide unique set of OTAA keys. To use LHT65S in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65S.
92 )))
93
94 (((
95 If LHT65S is under the coverage of this LoRaWAN network. LHT65S can join the LoRaWAN network automatically. After successfully joining, LHT65S 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.
96 )))
97
98
99 == 2.2 How to Activate LHT65S? ==
100
101
102 (((
103 The LHT65S has two working modes:
104 )))
105
106 * (((
107 (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65S doesn't have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
108 )))
109 * (((
110 (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65S works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65S will be in STOP mode (IDLE mode), in STOP mode, LHT65S has the same power consumption as Deep Sleep mode. 
111 )))
112
113 (((
114 The LHT65S is set in deep sleep mode by default; The ACT button on the front is to switch to different modes:(% style="display:none" %)
115 )))
116
117 [[image:image-20230615152108-4.png]](% style="display:none" %)
118
119 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
120 |=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
121 |(% 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" %)(((
122 If LHT65S is already Joined to rhe LoRaWAN network, LHT65S will send an uplink packet, if LHT65S has external sensor connected,(% style="color:blue" %)**Blue led** (%%)will blink once. If LHT65S has not external sensor, (% style="color:red" %)**Red led**(%%) will blink once.
123 )))
124 |(% 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" %)(((
125 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will fast blink 5 times, LHT65S will enter working mode and start to JOIN LoRaWAN network.
126 (% style="background-color:#f2f2f2; color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after join in network.
127 )))
128 |(% 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 LHT65S is in Deep Sleep Mode.
129
130 == 2.3 Example to join LoRaWAN network ==
131
132
133 (% class="wikigeneratedid" %)
134 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.(% style="display:none" %)
135
136 (% class="wikigeneratedid" %)
137 [[image:image-20230615153217-5.png||height="471" width="800"]]
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 LHT65S. Next we need to add the LHT65S device in TTN V3:
142 )))
143
144
145 === 2.3.1 Step 1: Create Device n TTN ===
146
147
148 (((
149 Create a device in TTN V3 with the OTAA keys from LHT65S.
150 )))
151
152 (((
153 Each LHT65S is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
154 )))
155
156 [[image:image-20230426083319-1.png||height="258" width="556"]]
157
158 User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
159
160 Add APP EUI in the application.
161
162
163 [[image:image-20220522232916-3.png||_mstalt="430495"]]
164
165
166 [[image:image-20220522232932-4.png||_mstalt="430157"]]
167
168
169 [[image:image-20220522232954-5.png||_mstalt="431847"]]
170
171
172
173 (% style="color:red" %)**Note: LHT65S use same payload as LHT65.**
174
175
176 [[image:image-20220522233026-6.png||_mstalt="429403"]]
177
178
179 Input APP EUI,  APP KEY and DEV EUI:
180
181
182 [[image:image-20220522233118-7.png||_mstalt="430430"]]
183
184
185 === 2.3.2 Step 2: Activate LHT65S by pressing the ACT button for more than 5 seconds. ===
186
187
188 (((
189 Use ACT button to activate LHT65S 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.
190 )))
191
192 [[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
193
194
195 == 2.4 Uplink Payload   ( Fport~=2) ==
196
197
198 (((
199 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
200 )))
201
202 (((
203 After each uplink, the (% style="color:blue" %)**BLUE LED**(%%) will blink once.
204 )))
205
206 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:390px" %)
207 |=(% style="width: 60px;background-color:#D9E2F3" %)(((
208 **Size(bytes)**
209 )))|=(% style="width: 30px;background-color:#D9E2F3" %)(((
210 **2**
211 )))|=(% style="width: 100px;background-color:#D9E2F3" %)(((
212 **2**
213 )))|=(% style="width: 100px;background-color:#D9E2F3" %)(((
214 **2**
215 )))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
216 **1**
217 )))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
218 **4**
219 )))
220 |(% style="width:97px" %)(((
221 **Value**
222 )))|(% style="width:39px" %)(((
223 [[BAT>>||anchor="H2.4.2BAT-BatteryInfo"]]
224 )))|(% style="width:100px" %)(((
225 (((
226 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
227 )))
228 )))|(% style="width:77px" %)(((
229 (((
230 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
231 )))
232 )))|(% style="width:47px" %)(((
233 [[Ext>>||anchor="H2.4.5Ext23"]] #
234 )))|(% style="width:51px" %)(((
235 [[Ext value>>||anchor="H2.4.6Extvalue"]]
236 )))
237
238 * The First 6 bytes: has fix meanings for every LHT65S.
239
240 * The 7th byte (EXT #): defines the external sensor model.
241
242 * 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.)
243
244 === 2.4.1 Decoder in TTN V3 ===
245
246
247 When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65S decoder in TTNv3 for friendly reading.
248
249 Below is the position to put the decoder and LHT65S decoder can be download from here: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
250
251
252 [[image:image-20220522234118-10.png||_mstalt="451464" height="353" width="729"]]
253
254
255 === 2.4.2 BAT-Battery Info ===
256
257
258 These two bytes of BAT include the battery state and the actually voltage.
259
260 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:477px" %)
261 |=(% style="width: 69px; background-color:#D9E2F3;color:#0070C0" %)(((
262 **Bit(bit)**
263 )))|=(% style="width: 253px;background-color:#D9E2F3;color:#0070C0" %)[15:14]|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)[13:0]
264 |(% style="width:66px" %)(((
265 **Value**
266 )))|(% style="width:250px" %)(((
267 BAT Status
268 00(b): Ultra Low ( BAT <= 2.50v)
269 01(b): Low (2.50v <=BAT <= 2.55v)
270 10(b): OK (2.55v <= BAT <=2.65v)
271 11(b): Good (BAT >= 2.65v)
272 )))|(% style="width:152px" %)Actually BAT voltage
273
274 **(b)stands for binary**
275
276
277 [[image:image-20220522235639-1.png||_mstalt="431392" height="139" width="727"]]
278
279
280 Check the battery voltage for LHT65S.
281
282 * BAT status=(0Xcba4>>14)&0xFF=11 (BIN) ，very good
283
284 * Battery Voltage =0xCBA4&0x3FFF=0x0BA4=2980mV
285
286 === 2.4.3 Built-in Temperature ===
287
288
289 [[image:image-20220522235639-2.png||_mstalt="431756" height="138" width="722"]]
290
291 * Temperature:  0x0ABB/100=27.47℃
292
293 [[image:image-20220522235639-3.png||_mstalt="432120"]]
294
295 * Temperature:  (0xF5C6-65536)/100=-26.18℃
296
297 (% style="display:none" %)
298
299 === 2.4.4 Built-in Humidity ===
300
301
302 [[image:image-20220522235639-4.png||_mstalt="432484" height="138" width="722"]]
303
304 * Humidity:    0x025C/10=60.4%
305
306 (% style="display:none" %)
307
308 === 2.4.5 Ext # ===
309
310
311 Bytes for External Sensor:
312
313 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:425px" %)
314 |=(% style="width: 102px; background-color:#D9E2F3;color:#0070C0" %)**EXT # **Value|=(% style="width: 323px;background-color:#D9E2F3;color:#0070C0" %)External Sensor Type
315 |(% style="width:102px" %)0x01|(% style="width:319px" %)Sensor E3, Temperature Sensor
316 |(% style="width:102px" %)0x09|(% style="width:319px" %)Sensor E3, Temperature Sensor, Datalog Mod
317
318 === 2.4.6 Ext value ===
319
320 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
321
322
323 [[image:image-20220522235639-5.png||_mstalt="432848"]]
324
325
326 * DS18B20 temp=0x0ADD/100=27.81℃
327
328 The last 2 bytes of data are meaningless
329
330 [[image:image-20220522235639-6.png||_mstalt="433212"]]
331
332
333 * External temperature= (0xF54F-65536)/100=-27.37℃
334
335 F54F :  (F54F & 8000 == 1) , temp = (F54F - 65536)/100 = 27.37℃
336
337 （0105 & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
338
339 The last 2 bytes of data are meaningless
340
341 If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
342
343
344
345 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
346
347
348 (((
349 Timestamp mode is designed for LHT65S 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:
350 )))
351
352
353 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
354 |=(% style="width: 50px;background-color:#D9E2F3" %)(((
355 **Size(bytes)**
356 )))|=(% style="width: 70px;background-color:#D9E2F3" %)(((
357 **2**
358 )))|=(% style="width: 120px;background-color:#D9E2F3" %)(((
359 **2**
360 )))|=(% style="width: 120px;background-color:#D9E2F3" %)(((
361 **2**
362 )))|=(% style="width: 50px;background-color:#D9E2F3" %)(((
363 **1**
364 )))|=(% style="width: 70px;background-color:#D9E2F3" %)(((
365 **4**
366 )))
367 |(% style="width:110px" %)(((
368 **Value**
369 )))|(% style="width:71px" %)(((
370 External temperature
371 )))|(% style="width:99px" %)(((
372 [[Built-In Temperature>>||anchor="H2.4.3Built-inTemperature"]]
373 )))|(% style="width:132px" %)(((
374 BAT Status & [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
375 )))|(% style="width:54px" %)(((
376 Status & Ext
377 )))|(% style="width:64px" %)(((
378 [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
379 )))
380
381 * **Battery status & Built-in Humidity**
382
383 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:461px" %)
384 |=(% style="width: 69px;background-color:#D9E2F3;color:#0070C0" %)Bit(bit)|=(% style="width: 258px;background-color:#D9E2F3;color:#0070C0" %)[15:14]|=(% style="width: 134px;background-color:#D9E2F3;color:#0070C0" %)[11:0]
385 |(% style="width:67px" %)**Value**|(% style="width:256px" %)(((
386 BAT Status
387 00(b): Ultra Low ( BAT <= 2.50v)
388 01(b): Low  (2.50v <=BAT <= 2.55v)
389 10(b): OK   (2.55v <= BAT <=2.65v)
390 11(b): Good   (BAT >= 2.65v)
391 )))|(% style="width:132px" %)(((
392 [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
393 )))
394
395 * **Status & Ext Byte**
396
397 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
398 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**Bits**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**7**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**6**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**5**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**[3:0]**
399 |=(% 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)
400
401 * (% style="color:blue" %)**Poll Message Flag**:(%%)  1: This message is a poll message reply, 0: means this is a normal uplink.
402 * (% style="color:blue" %)**Sync time OK**: (%%) 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65S will set this bit to 0 until got the time stamp from the application server.
403 * (% style="color:blue" %)**Unix Time Request**:(%%)  1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65S will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
404
405 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ====
406
407
408 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
409
410 be used to power the external ADC sensor; user can control the power on time for this
411
412 (% style="color:blue" %)**sensor by setting:**
413
414 **AT+EXT=6,timeout**  (% style="color:red" %)**Time to power this sensor, from 0 ~~ 65535ms**
415
416 **For example:**
417
418 AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value.
419
420
421 Or use **downlink command A2** to set the same.
422
423 The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
424
425 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.
426
427 [[image:image-20220628150112-1.png||_mstalt="427414" height="241" width="285"]]
428
429
430 When ADC_IN1 pin is connected to GND or suspended, ADC value is 0
431
432 [[image:image-20220628150714-4.png||_mstalt="431054"]]
433
434
435 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.
436
437
438 1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V
439
440 [[image:image-20220628151005-5.png||_mstalt="429546"]]
441
442
443 2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v
444
445 [[image:image-20220628151056-6.png||_mstalt="431873"]]
446
447
448 3) Within range
449
450 [[image:image-20220628151143-7.png||_mstalt="431210"]]
451
452
453
454 ==== 2.4.6.4 Ext~=2 TMP117 Sensor （Since Firmware v1.3） ====
455
456
457 [[image:image-20220927095645-1.png||_mstalt="433771" height="534" width="460"]]
458
459
460 (% style="color:blue" %)**Ext=2,Temperature Sensor(TMP117)：**
461
462 [[image:image-20220906102307-7.png||_mstalt="430443"]]
463
464
465 (% style="color:blue" %)**Interrupt Mode and Counting Mode:**
466
467 The external cable NE2 can be use for MOD4 and MOD8
468
469
470
471 ==== 2.4.6.5 Ext~=11 SHT31 Sensor （Since Firmware v1.4.1） ====
472
473
474 [[image:65N-E31F.jpg||height="454" width="459"]]
475
476
477 (% style="color:blue" %)**Ext=11,Temperature & Humidity Sensor(SHT31)：**
478
479 [[image:SHT31.png]]
480
481
482
483 ==== 2.4.6.6 Ext~=4 Interrupt Mode （Since Firmware v1.3） ====
484
485
486 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65S will send an uplink when there is a trigger.**
487
488
489 (% style="color:blue" %)**Interrupt Mode can be used to connect to external interrupt sensors such as:**
490
491 (% style="color:#037691" %)**Case 1: Door Sensor.** (%%)3.3v Out for such sensor is just to detect Open/Close.
492
493 In Open State, the power consumption is the same as if there is no probe
494
495 In Close state, the power consumption will be 3uA higher than normal.
496
497 [[image:image-20220906100852-1.png||_mstalt="429156" height="205" width="377"]]
498
499
500 Ext=4,Interrupt Sensor：
501
502 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:504px" %)
503 |(% style="width:101px" %)(((
504 **AT+EXT=4,1**
505 )))|(% style="width:395px" %)(((
506 **Sent uplink packet in both rising and falling interrupt**
507 )))
508 |(% style="width:101px" %)(((
509 **AT+EXT=4,2**
510 )))|(% style="width:395px" %)(((
511 **Sent uplink packet only in falling interrupt**
512 )))
513 |(% style="width:101px" %)(((
514 **AT+EXT=4,3**
515 )))|(% style="width:395px" %)(((
516 **Sent uplink packet only in rising interrupt**
517 )))
518
519 Trigger by falling edge:
520
521 [[image:image-20220906101145-2.png||_mstalt="428324"]]
522
523
524 Trigger by raising edge：
525
526 [[image:image-20220906101145-3.png||_mstalt="428688"]]
527
528
529
530 ==== 2.4.6.7 Ext~=8 Counting Mode（Since Firmware v1.3） ====
531
532
533 (% style="color:red" %)**Note: In this mode, 3.3v output will be always ON. LHT65S will count for every interrupt and uplink periodically.**
534
535
536 (% 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 LHT65S.
537
538 [[image:image-20220906101320-4.png||_mstalt="427336" height="366" width="698"]]
539
540
541 (% style="color:blue" %)**Case 2**(%%):  Normal Flow Sensor: Such flow sensor has higher power consumption and is not suitable to be powered by LHT65S. It is powered by external power and output <3.3v pulse
542
543 [[image:image-20220906101320-5.png||_mstalt="427700" height="353" width="696"]]
544
545
546 Ext=8, Counting Sensor ( 4 bytes)：
547
548 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:330px" %)
549 |(% style="width:131px" %)(((
550 **AT+EXT=8,0**
551 )))|(% style="width:195px" %)(((
552 **Count at falling interrupt**
553 )))
554 |(% style="width:131px" %)(((
555 **AT+EXT=8,1**
556 )))|(% style="width:195px" %)(((
557 **Count at rising interrupt**
558 )))
559 |(% style="width:131px" %)(((
560 **AT+SETCNT=60**
561 )))|(% style="width:195px" %)(((
562 **Sent current count to 60**
563 )))
564
565 [[image:image-20220906101320-6.png||_mstalt="428064"]]
566
567
568 (% style="color:blue" %)**A2 downlink Command：**
569
570 A2 02:  Same as AT+EXT=2 (AT+EXT= second byte)
571
572 A2 06 01 F4:  Same as AT+EXT=6,500 (AT+EXT= second byte, third and fourth bytes)
573
574 A2 04 02:  Same as AT+EXT=4,2 (AT+EXT= second byte, third byte)
575
576 A2 08 01 00:  Same as AT+EXT=8,0 (AT+EXT= second byte, fourth byte)
577
578 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)
579
580
581 == 2.5 Show data on Datacake ==
582
583
584 (((
585 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:
586 )))
587
588
589 (((
590 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the LoRaWAN network.
591 )))
592
593 (((
594 (% 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.
595 )))
596
597
598 (((
599 Add Datacake:
600 )))
601
602
603 [[image:image-20220523000825-7.png||_mstalt="429884" height="262" width="583"]]
604
605
606
607 Select default key as Access Key:
608
609
610 [[image:image-20220523000825-8.png||_mstalt="430248" height="453" width="406"]]
611
612
613 In Datacake console ([[https:~~/~~/datacake.co/>>url:https://datacake.co/]]) , add LHT65 device.
614
615
616 [[image:image-20220523000825-9.png||_mstalt="430612" height="366" width="392"]]
617
618
619 [[image:image-20220523000825-10.png||_mstalt="450619" height="413" width="728"]]
620
621
622 == 2.6 Datalog Feature ==
623
624
625 (((
626 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65S will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65S.
627 )))
628
629
630 === 2.6.1 Ways to get datalog via LoRaWAN ===
631
632
633 There are two methods:
634
635 (% style="color:blue" %)**Method 1:** (%%)IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specified time range.
636
637
638 (% style="color:blue" %)**Method 2: **(%%)Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65S will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65S 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.
639
640
641 (% style="color:red" %)**Note for method 2:**
642
643 * a) LHT65S will do an ACK check for data records sending to make sure every data arrive server.
644 * b) LHT65S will send data in **CONFIRMED Mode** when PNACKMD=1, but LHT65S 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 LHT65S gets a ACK, LHT65S will consider there is a network connection and resend all NONE-ACK Message.
645
646 Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
647
648
649 [[image:image-20220703111700-2.png||_mstalt="426244" height="381" width="1119"]]
650
651
652 === 2.6.2 Unix TimeStamp ===
653
654
655 LHT65S uses Unix TimeStamp format based on
656
657
658 [[image:image-20220523001219-11.png||_mstalt="450450" height="97" width="627"]]
659
660
661
662 User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
663
664 Below is the converter example
665
666 [[image:image-20220523001219-12.png||_mstalt="450827" height="298" width="720"]]
667
668
669 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
670
671
672 === 2.6.3 Set Device Time ===
673
674
675 (((
676 (% style="color:blue" %)**There are two ways to set device's time:**
677 )))
678
679 (((
680 **1.  Through LoRaWAN MAC Command (Default settings)**
681 )))
682
683 (((
684 User need to set SYNCMOD=1 to enable sync time via MAC command.
685 )))
686
687 (((
688 Once LHT65S Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LHT65S. If LHT65S fails to get the time from the server, LHT65S will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
689 )))
690
691 (((
692 (% 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.**
693 )))
694
695
696 (((
697 **2. Manually Set Time**
698 )))
699
700 (((
701 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
702 )))
703
704
705 === 2.6.4 Poll sensor value ===
706
707
708 User can poll sensor value based on timestamps from the server. Below is the downlink command.
709
710 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:428px" %)
711 |(% style="width:58px" %)**1byte**|(% style="width:128px" %)**4bytes**|(% style="width:123px" %)**4bytes**|(% style="width:116px" %)**1byte**
712 |(% style="width:58px" %)31|(% style="width:128px" %)Timestamp start|(% style="width:123px" %)Timestamp end|(% style="width:116px" %)Uplink Interval
713
714 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.
715
716 For example, downlink command (% _mstmutation="1" %)**31 5FC5F350 5FC6 0160 05**(%%)
717
718 Is to check 2020/12/1 07:40:00 to 2020/12/1 08:40:00's data
719
720 Uplink Internal =5s，means LHT65S will send one packet every 5s. range 5~~255s.
721
722
723 === 2.6.5 Datalog Uplink payload ===
724
725
726 The Datalog poll reply uplink will use below payload format.
727
728 **Retrieval data payload:**
729
730 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
731 |=(% style="width: 60px;background-color:#D9E2F3" %)(((
732 **Size(bytes)**
733 )))|=(% style="width: 90px;background-color:#D9E2F3" %)**2**|=(% style="width: 90px;background-color:#D9E2F3" %)**2**|=(% style="width: 70px;background-color:#D9E2F3" %)**2**|=(% style="width: 100px;background-color:#D9E2F3" %)**1**|=(% style="width: 70px;background-color:#D9E2F3" %)**4**
734 |(% 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"]]
735
736 **Poll message flag & Ext:**
737
738 [[image:image-20221006192726-1.png||_mstalt="430508" height="112" width="754"]]
739
740 (% 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)
741
742 (% style="color:blue" %)**Poll Message Flag**(%%): 1: This message is a poll message reply.
743
744 * Poll Message Flag is set to 1.
745
746 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
747
748 For example, in US915 band, the max payload for different DR is:
749
750 (% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data
751
752 (% style="color:blue" %)**b) DR1:**(%%) max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
753
754 (% style="color:blue" %)**c) DR2:**(%%) total payload includes 11 entries of data
755
756 (% style="color:blue" %)**d) DR3: **(%%)total payload includes 22 entries of data.
757
758 If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
759
760
761 **Example:**
762
763 If LHT65S has below data inside Flash:
764
765 [[image:image-20230426171833-4.png]]
766
767
768 If user sends below downlink command: (% style="background-color:yellow" %)3160065F9760066DA705
769
770 Where : Start time: 60065F97 = time 21/1/19 04:27:03
771
772 Stop time: 60066DA7= time 21/1/19 05:27:03
773
774
775 **LHT65S will uplink this payload.**
776
777 [[image:image-20220523001219-13.png||_mstalt="451204" height="421" style="text-align:left" width="727"]]
778
779
780 __**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
781
782 Where the first 11 bytes is for the first entry:
783
784 7FFF089801464160065F97
785
786 Ext sensor data=0x7FFF/100=327.67
787
788 Temp=0x088E/100=22.00
789
790 Hum=0x014B/10=32.6
791
792 poll message flag & Ext=0x41,means reply data,Ext=1
793
794 Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
795
796
797 == 2.7 Alarm Mode & Feature "Multi sampling, one uplink" ==
798
799
800 (((
801 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.
802 )))
803
804 (((
805 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
806
807
808 === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) ===
809
810
811 **Internal GXHT30 temperature alarm（Acquisition time: fixed at one minute）**
812
813 (((
814 (% class="box infomessage" %)
815 (((
816 **AT+WMOD=3**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
817
818 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
819
820 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
821
822 (% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
823
824 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
825
826 **AT+LEDALARM=1** :       Enable LED visual Alarm.
827 )))
828 )))
829
830 (% style="color:#4f81bd" %)**Downlink Command:**
831
832 AT+WMOD=1:  A501  ,  AT+WMOD=0 :  A600
833
834 AT+CITEMP=1 : A60001
835
836 AT+ARTEMP=1,60  :  A70001003C
837
838 AT+ARTEMP=-16,60 :  A7FFF0003C
839
840 AT+LEDALARM=1  :  3601
841
842
843 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
844
845 Total bytes: 8 bytes
846
847 **Example: **AA0100010001003C
848
849 WMOD=01
850
851 CITEMP=0001
852
853 TEMPlow=0001
854
855 TEMPhigh=003C
856
857
858 **DS18B20 and TMP117 Threshold Alarm**
859
860 **~ AT+WMOD=1,60,-10,20**
861
862 (% style="color:#4f81bd" %)**Downlink Command:**
863
864 **Example: **A5013CFC180014
865
866 MOD=01
867
868 CITEMP=3C(S)
869
870 TEMPlow=FC18
871
872 TEMPhigh=0014
873
874
875 **Fluctuation alarm for DS18B20 and TMP117（Acquisition time: minimum 1s）**
876
877 **AT+WMOD=2,60,5** 
878
879 (% style="color:#4f81bd" %)**Downlink Command:**
880
881 **Example: **A5023C05
882
883 MOD=02
884
885 CITEMP=3C(S)
886
887 temperature fluctuation=05
888
889
890 **Sampling multiple times and uplink together**
891
892 **AT+WMOD=3,1,60,20,-16,32,1**   
893
894 Explain:
895
896 * (% style="color:#037691" %)**parameter1: **(%%)Set Working Mode to **Mode 3**
897 * (% style="color:#037691" %)**parameter2:**(%%) Set the temperature sampling mode to** 1**(1:DS18B20;2:TMP117;3:** **Internal GXHT30).
898 * (% style="color:#037691" %)**parameter3: **(%%)Sampling Interval is **60**s.
899 * (% 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)
900 * (% style="color:#037691" %)**parameter5 & parameter6: **(%%)Temperature alarm range is **-16** to **32**°C,
901 * (% 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.
902
903 (% style="color:#4f81bd" %)**Downlink Command:**
904
905 **Example: **A50301003C14FFF0002001
906
907 MOD=03
908
909 TEMP=DS18B20
910
911 CITEMP=003C(S)
912
913 Total number of acquisitions=14
914
915 TEMPlow=FFF0
916
917 TEMPhigh=0020
918
919 ARTEMP=01
920
921
922 **Uplink payload( Fport=3)**
923
924 **Example: CBEA**01**0992**//0A41//**09C4**
925
926 BatV=CBEA
927
928 TEMP=DS18B20
929
930 Temp1=0992  ~/~/ 24.50℃
931
932 Temp2=0A41  ~/~/ 26.25℃
933
934 Temp3=09C4  ~/~/ 25.00℃
935
936 (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
937
938 (% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
939 )))
940
941
942 === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
943
944
945 (% class="box infomessage" %)
946 (((
947 (((
948 **AT+WMOD=1**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
949 )))
950
951 (((
952 **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
953 )))
954
955 (((
956 **AT+ARTEMP**:  Gets or sets the alarm range of the internal temperature sensor
957 )))
958
959 (((
960 (% _mstmutation="1" %)**AT+ARTEMP=？ **(%%):  Gets the alarm range of the internal temperature sensor(% style="display:none" %)
961 )))
962
963 (((
964 **AT+ARTEMP=45,105**:  Set the internal temperature sensor alarm range from 45 to 105.
965 )))
966 )))
967
968 (% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
969
970 Total bytes: 8 bytes
971
972 **Example:**AA0100010001003C
973
974 WMOD=01
975
976 CITEMP=0001
977
978 TEMPlow=0001
979
980 TEMPhigh=003C
981
982
983 == 2.8 LED Indicator ==
984
985
986 The LHT65 has a triple color LED which for easy showing different stage .
987
988 While user press ACT button, the LED will work as per LED status with ACT button.
989
990 In a normal working state:
991
992 * For each uplink, the BLUE LED or RED LED will blink once.
993 BLUE LED when external sensor is connected.
994 * RED LED when external sensor is not connected
995 * For each success downlink, the PURPLE LED will blink once
996
997 == 2.9 Installation ==
998
999
1000
1001 [[image:image-20230615161146-8.png]]
1002
1003
1004 = 3. Sensors and Accessories =
1005
1006 == 3.1 E2 Extension Cable ==
1007
1008
1009 [[image:image-20220619092222-1.png||_mstalt="429533" height="182" width="188"]][[image:image-20220619092313-2.png||_mstalt="430222" height="182" width="173"]]
1010
1011
1012 **1m long breakout cable for LHT65S. Features:**
1013
1014 * (((
1015 Use for AT Command， works for both LHT52/LHT65S
1016 )))
1017 * (((
1018 Update firmware for LHT65S, works for both LHT52/LHT65S
1019 )))
1020 * (((
1021 Supports ADC mode to monitor external ADC
1022 )))
1023 * (((
1024 Supports Interrupt mode
1025 )))
1026 * (((
1027 Exposed All pins from the LHT65S Type-C connector.
1028
1029
1030
1031 )))
1032
1033 [[image:image-20220619092421-3.png||_mstalt="430547" height="371" width="529"]]
1034
1035
1036 == 3.2 E3 Temperature Probe ==
1037
1038
1039 [[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"]]
1040
1041
1042 Temperature sensor with 2 meters cable long
1043
1044 * Resolution: 0.0625 °C
1045 * ±0.5°C accuracy from -10°C to +85°C
1046 * ±2°C accuracy from -55°C to +125°C
1047 * Operating Range: -40 ~~ 125 °C
1048 * Working voltage 2.35v ~~ 5v
1049
1050 == 3.3 E31F Temperature Probe ==
1051
1052
1053 [[image:65N-E31F-1.jpg||height="169" width="170"]] [[image:65N-E31F.jpg||height="196" width="198"]]
1054
1055
1056 Temperature sensor with 1 meters cable long
1057
1058 **Built-in Temperature Sensor:**
1059
1060 * Resolution: 0.01 °C
1061 * Accuracy Tolerance : Typ ±0.3 °C
1062 * Long Term Drift: < 0.02 °C/yr
1063 * Operating Range: -40 ~~ 80 °C
1064
1065 **Built-in Humidity Sensor:**
1066
1067 * Resolution: 0.04 % RH
1068 * Accuracy Tolerance : Typ ±3 % RH
1069 * Long Term Drift: < 0.02 °C/yr
1070 * Operating Range: 0 ~~ 96 % RH
1071
1072 **External Temperature Sensor :**
1073
1074 * Resolution: 0.01 °C
1075 * Accuracy Tolerance : Typical ±0.3 °C
1076 * Long Term Drift: < 0.02 °C/yr
1077 * Operating Range: -40 ~~ 125 °C
1078
1079 **External Humidity Sensor :**
1080
1081 * Resolution: 0.04 % RH
1082 * Accuracy Tolerance : Typ ±3 % RH
1083 * Long Term Drift: < 0.02 °C/yr
1084 * Operating Range: 0 ~~ 96 % RH
1085
1086 = 4. Configure LHT65S via AT command or LoRaWAN downlink =
1087
1088
1089 (((
1090 Use can configure LHT65S via AT Command or LoRaWAN Downlink.
1091 )))
1092
1093 * (((
1094 AT Command Connection: See [[FAQ>>||anchor="H6.FAQ"]].
1095 )))
1096
1097 * (((
1098 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1099 )))
1100
1101 (((
1102 There are two kinds of commands to configure LHT65S, they are:
1103 )))
1104
1105 * (((
1106 (% style="color:#4f81bd" %)**General Commands**.
1107 )))
1108
1109 (((
1110 These commands are to configure:
1111 )))
1112
1113 1. (((
1114 General system settings like: uplink interval.
1115 )))
1116 1. (((
1117 LoRaWAN protocol & radio-related commands.
1118 )))
1119
1120 (((
1121 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]]
1122 )))
1123
1124 * (((
1125 (% style="color:#4f81bd" %)**Commands special design for LHT65S**
1126 )))
1127
1128 (((
1129 These commands are only valid for LHT65S, as below:
1130 )))
1131
1132
1133 == 4.1 Set Transmit Interval Time ==
1134
1135
1136 Feature: Change LoRaWAN End Node Transmit Interval.
1137
1138 (% style="color:#4f81bd" %)**AT Command: AT+TDC**
1139
1140 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:501px" %)
1141 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:166px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:180px" %)**Response**
1142 |(% style="width:155px" %)AT+TDC=?|(% style="width:162px" %)Show current transmit Interval|(% style="width:177px" %)30000 OK the interval is 30000ms = 30s
1143 |(% style="width:155px" %)AT+TDC=60000|(% style="width:162px" %)Set Transmit Interval|(% style="width:177px" %)OK Set transmit interval to 60000ms = 60 seconds
1144
1145 (% style="color:#4f81bd" %)**Downlink Command: 0x01**
1146
1147 Format: Command Code (0x01) followed by 3 bytes time value.
1148
1149 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
1150
1151 * **Example 1**: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
1152
1153 * **Example 2**: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
1154
1155 == 4.2 Set External Sensor Mode ==
1156
1157
1158 Feature: Change External Sensor Mode.
1159
1160 (% style="color:#4f81bd" %)**AT Command: AT+EXT**
1161
1162 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:468px" %)
1163 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:153px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:160px" %)**Response**
1164 |(% style="width:155px" %)AT+EXT=?|(% style="width:151px" %)Get current external sensor mode|(% style="width:158px" %)1 OK External Sensor mode =1
1165 |(% style="width:155px" %)AT+EXT=1|(% colspan="2" rowspan="1" style="width:309px" %)Set external sensor mode to 1
1166 |(% style="width:155px" %)AT+EXT=9|(% colspan="2" rowspan="1" style="width:309px" %)Set to external DS18B20 with timestamp
1167
1168 (% style="color:#4f81bd" %)**Downlink Command: 0xA2**
1169
1170 Total bytes: 2 ~~ 5 bytes
1171
1172 **Example:**
1173
1174 * 0xA201: Set external sensor type to E1
1175
1176 * 0xA209: Same as AT+EXT=9
1177
1178 * 0xA20702003c: Same as AT+SETCNT=60
1179
1180 == 4.3 Enable/Disable uplink Temperature probe ID ==
1181
1182
1183 (((
1184 Feature: If PID is enabled, device will send the temperature probe ID on:
1185 )))
1186
1187 * (((
1188 First Packet after OTAA Join
1189 )))
1190 * (((
1191 Every 24 hours since the first packet.
1192 )))
1193
1194 (((
1195 PID is default set to disable (0)
1196
1197
1198 )))
1199
1200 (% style="color:#4f81bd" %)**AT Command:**
1201
1202 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:381px" %)
1203 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:138px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:88px" %)**Response**
1204 |(% style="width:155px" %)AT+PID=1|(% style="width:136px" %)Enable PID uplink|(% style="width:86px" %)OK
1205
1206 (% style="color:#4f81bd" %)**Downlink Command:**
1207
1208 * **0xA800**  **~-~->** AT+PID=0
1209 * **0xA801**     **~-~->** AT+PID=1
1210
1211 == 4.4 Set Password ==
1212
1213
1214 Feature: Set device password, max 9 digits
1215
1216 (% style="color:#4f81bd" %)**AT Command: AT+PWORD**
1217
1218 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:372px" %)
1219 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:128px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:89px" %)**Response**
1220 |(% style="width:155px" %)AT+PWORD=?|(% style="width:124px" %)Show password|(% style="width:86px" %)(((
1221 123456
1222
1223 OK
1224 )))
1225 |(% style="width:155px" %)AT+PWORD=999999|(% style="width:124px" %)Set password|(% style="width:86px" %)OK
1226
1227 (% style="color:#4f81bd" %)**Downlink Command:**
1228
1229 No downlink command for this feature.
1230
1231
1232 == 4.5 Quit AT Command ==
1233
1234
1235 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands.
1236
1237 (% style="color:#4f81bd" %)**AT Command: AT+DISAT**
1238
1239 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:433px" %)
1240 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:191px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:86px" %)**Response**
1241 |(% style="width:155px" %)AT+DISAT|(% style="width:191px" %)Quit AT Commands mode|(% style="width:86px" %)OK
1242
1243 (% style="color:#4f81bd" %)**Downlink Command:**
1244
1245 No downlink command for this feature.
1246
1247
1248 == 4.6 Set to sleep mode ==
1249
1250
1251 Feature: Set device to sleep mode
1252
1253 * **AT+Sleep=0**  : Normal working mode, device will sleep and use lower power when there is no LoRa message
1254 * **AT+Sleep=1** :  Device is in deep sleep mode, no LoRa activation happen, used for storage or shipping.
1255
1256 (% style="color:#4f81bd" %)**AT Command: AT+SLEEP**
1257
1258 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:513px" %)
1259 |(% style="background-color:#d9e2f3; color:#0070c0; width:155px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:140px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:218px" %)**Response**
1260 |(% style="width:155px" %)AT+SLEEP|(% style="width:139px" %)Set to sleep mode|(% style="width:213px" %)(((
1261 Clear all stored sensor data…
1262
1263 OK
1264 )))
1265
1266 (% style="color:#4f81bd" %)**Downlink Command:**
1267
1268 * There is no downlink command to set to Sleep mode.
1269
1270 == 4.7 Set system time ==
1271
1272
1273 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]]
1274
1275 (% style="color:#4f81bd" %)**AT Command:**
1276
1277 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:506px" %)
1278 |(% style="background-color:#d9e2f3; color:#0070c0; width:188px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:318px" %)**Function**
1279 |(% style="width:154px" %)AT+TIMESTAMP=1611104352|(% style="width:285px" %)(((
1280 OK
1281
1282 Set System time to 2021-01-20 00:59:12
1283 )))
1284
1285 (% style="color:#4f81bd" %)**Downlink Command:**
1286
1287 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1288
1289
1290 == 4.8 Set Time Sync Mode ==
1291
1292
1293 (((
1294 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
1295 )))
1296
1297 (((
1298 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.
1299 )))
1300
1301 (% style="color:#4f81bd" %)**AT Command:**
1302
1303 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:475px" %)
1304 |(% style="background-color:#d9e2f3; color:#0070c0; width:156px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:315px" %)**Function**
1305 |(% style="width:156px" %)AT+SYNCMOD=1|(% style="width:315px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
1306
1307 (% style="color:#4f81bd" %)**Downlink Command:**
1308
1309 0x28 01  ~/~/  Same As AT+SYNCMOD=1
1310 0x28 00  ~/~/  Same As AT+SYNCMOD=0
1311
1312
1313 == 4.9 Set Time Sync Interval ==
1314
1315
1316 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
1317
1318 (% style="color:#4f81bd" %)**AT Command:**
1319
1320 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:472px" %)
1321 |(% style="background-color:#d9e2f3; color:#0070c0; width:158px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:314px" %)**Function**
1322 |(% style="width:156px" %)AT+SYNCTDC=0x0A |(% style="width:311px" %)Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
1323
1324 (% style="color:#4f81bd" %)**Downlink Command:**
1325
1326 **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1327
1328
1329 == 4.10 Print data entries base on page. ==
1330
1331
1332 Feature: Print the sector data from start page to stop page (max is 416 pages).
1333
1334 (% style="color:#4f81bd" %)**AT Command: AT+PDTA**
1335
1336 [[image:image-20230426164330-2.png]]
1337
1338 (% style="color:#4f81bd" %)**Downlink Command:**
1339
1340 No downlink commands for feature
1341
1342
1343 == 4.11 Print last few data entries. ==
1344
1345
1346 Feature: Print the last few data entries
1347
1348 (% style="color:#4f81bd" %)**AT Command: AT+PLDTA**
1349
1350 [[image:image-20230426164932-3.png]]
1351
1352 (% style="color:#4f81bd" %)**Downlink Command:**
1353
1354 No downlink commands for feature
1355
1356
1357 == 4.12 Clear Flash Record ==
1358
1359
1360 Feature: Clear flash storage for data log feature.
1361
1362 (% style="color:#4f81bd" %)**AT Command: AT+CLRDTA**
1363
1364 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:503px" %)
1365 |(% style="background-color:#d9e2f3; color:#0070c0; width:157px" %)**Command Example**|(% style="background-color:#d9e2f3; color:#0070c0; width:137px" %)**Function**|(% style="background-color:#d9e2f3; color:#0070c0; width:209px" %)**Response**
1366 |(% style="width:155px" %)AT+CLRDTA |(% style="width:134px" %)Clear date record|(% style="width:209px" %)(((
1367 Clear all stored sensor data…
1368
1369 OK
1370 )))
1371
1372 (% style="color:#4f81bd" %)**Downlink Command: 0xA3**
1373
1374 * Example: 0xA301  ~/~/  Same as AT+CLRDTA
1375
1376 == 4.13 Auto Send None-ACK messages ==
1377
1378
1379 Feature: LHT65S will wait for ACK for each uplink, If LHT65S doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65S keeps sending messages in normal periodically. Once LHT65S gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
1380
1381 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD**
1382
1383 The default factory setting is 0
1384
1385 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:367px" %)
1386 |=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 87px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1387 |(% style="width:158px" %)AT+PNACKMD=1|(% style="width:118px" %)Poll None-ACK message|(% style="width:87px" %)OK
1388
1389 (% style="color:#4f81bd" %)**Downlink Command: 0x34**
1390
1391 * Example: 0x3401  ~/~/  Same as AT+PNACKMD=1
1392
1393 == 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm（Since firmware 1.3.0） ==
1394
1395
1396 Feature: Set internal and external temperature sensor alarms.
1397
1398 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
1399 |=(% style="width: 250px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 200px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1400 |(% style="width:268px" %)AT+WMOD=parameter1,parameter2,parameter3,parameter4|(% style="width:255px" %)Set internal and external temperature sensor alarms|(% style="width:181px" %)OK
1401
1402 (% style="color:#037691" %)**AT+WMOD=parameter1,parameter2,parameter3,parameter4**
1403
1404 (% style="color:#037691" %)**Parameter 1**(%%):  Alarm mode:
1405
1406 0): Cancel
1407
1408 1): Threshold alarm
1409
1410 2): Fluctuation alarm
1411
1412 3): Sampling multiple times and uplink together
1413
1414 (% style="color:#037691" %)** Parameter 2**(%%):  Sampling time. Unit: seconds, up to 255 seconds.
1415
1416 (% 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.**
1417
1418
1419 (% style="color:#037691" %) **Parameter 3 and parameter 4:**
1420
1421 1):  If Alarm Mode is set to 1: Parameter 3 and parameter 4 are valid, as before, they represent low temperature and high temperature.
1422
1423 Such as AT+WMOD=1,60,45,105, it means high and low temperature alarm.
1424
1425
1426 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.
1427
1428 Such as AT+WMOD=2,10,2,it means that it is a fluctuation alarm.
1429
1430 If the difference between the current collected temperature and the last Uplin is ±2 degrees, the alarm will be issued.
1431
1432
1433 3):  If Alarm Mode is set to 3:
1434
1435 Explain:
1436
1437 * (% style="color:#037691" %)**parameter1: **(%%)Set Working Mode to **Mode 3**
1438 * (% style="color:#037691" %)**parameter2:**(%%) Set the temperature sampling mode to** 1**(1:DS18B20;2:TMP117;3:** **Internal GXHT30).
1439 * (% style="color:#037691" %)**parameter3: **(%%)Sampling Interval is **60**s.
1440 * (% 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)
1441 * (% style="color:#037691" %)**parameter5 & parameter6: **(%%)Temperature alarm range is **-16** to **32**°C,
1442 * (% 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.
1443
1444
1445 (% style="color:#4f81bd" %)**Downlink Command: 0xA5**
1446
1447 0xA5 00 ~-~- AT+WMOD=0.
1448
1449 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 )
1450
1451 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))
1452
1453 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1454
1455 0xA5 03 01 00 3C 14 FF F0 00 20 01~-~-AT+WMOD=3,1,60,20,-16,32,1   
1456
1457 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.
1458
1459
1460 = 5. Battery & How to replace =
1461
1462 == 5.1 Battery Type ==
1463
1464
1465 (((
1466 LHT65S 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.
1467 )))
1468
1469 (((
1470 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1471
1472
1473 [[image:image-20220515075034-1.png||_mstalt="428961" height="208" width="644"]]
1474 )))
1475
1476 The minimum Working Voltage for the LHT65S is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1477
1478
1479 == 5.2 Replace Battery ==
1480
1481
1482 LHT65S 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.
1483
1484 [[image:image-20220515075440-2.png||_mstalt="429546" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" height="193" width="257"]]
1485
1486
1487 == 5.3 Battery Life Analyze ==
1488
1489
1490 (((
1491 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:
1492 [[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]]
1493 )))
1494
1495
1496 (((
1497 A full detail test report for LHT65S 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]]
1498 )))
1499
1500
1501 = 6. FAQ =
1502
1503 == 6.1 How to use AT Command? ==
1504
1505
1506 LHT65S 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.
1507
1508 [[image:image-20220530085651-1.png||_mstalt="429949"]]
1509
1510
1511 **Connection:**
1512
1513 * (% style="background-color:yellow" %)**USB to TTL GND <~-~->GND**
1514 * (% style="background-color:yellow" %)**USB to TTL RXD <~-~-> D+**
1515 * (% style="background-color:yellow" %)**USB to TTL TXD <~-~-> A11**
1516
1517 (((
1518 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 LHT65S. 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.
1519 )))
1520
1521
1522 Input password and ATZ to activate LHT65S,As shown below:
1523
1524 [[image:image-20220530095701-4.png||_mstalt="430014"]]
1525
1526
1527 AT Command List is as below:
1528
1529 AT+<CMD>? :  Help on <CMD>
1530
1531 AT+<CMD> :  Run <CMD>
1532
1533 AT+<CMD>=<value> :  Set the value
1534
1535 AT+<CMD>=? :  Get the value
1536
1537 AT+DEBUG:  Set more info output
1538
1539 ATZ:  Trig a reset of the MCU
1540
1541 AT+FDR:  Reset Parameters to Factory Default, Keys Reserve
1542
1543 AT+DEUI:  Get or Set the Device EUI
1544
1545 AT+DADDR:  Get or Set the Device Address
1546
1547 AT+APPKEY:  Get or Set the Application Key
1548
1549 AT+NWKSKEY:  Get or Set the Network Session Key
1550
1551 AT+APPSKEY:  Get or Set the Application Session Key
1552
1553 AT+APPEUI:  Get or Set the Application EUI
1554
1555 AT+ADR:  Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1556
1557 AT+TXP:  Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1558
1559 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)
1560
1561 AT+DCS:  Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1562
1563 AT+PNM:  Get or Set the public network mode. (0: off, 1: on)
1564
1565 AT+RX2FQ:  Get or Set the Rx2 window frequency
1566
1567 AT+RX2DR:  Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1568
1569 AT+RX1DL:  Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1570
1571 AT+RX2DL:  Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1572
1573 AT+JN1DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1574
1575 AT+JN2DL:  Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1576
1577 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1578
1579 AT+NWKID:  Get or Set the Network ID
1580
1581 AT+FCU:  Get or Set the Frame Counter Uplink
1582
1583 AT+FCD:  Get or Set the Frame Counter Downlink
1584
1585 AT+CLASS:  Get or Set the Device Class
1586
1587 AT+JOIN:  Join network
1588
1589 AT+NJS:  Get the join status
1590
1591 AT+SENDB:  Send hexadecimal data along with the application port
1592
1593 AT+SEND:  Send text data along with the application port
1594
1595 AT+RECVB:  Print last received data in binary format (with hexadecimal values)
1596
1597 AT+RECV:  Print last received data in raw format
1598
1599 AT+VER:  Get current image version and Frequency Band
1600
1601 AT+CFM:  Get or Set the confirmation mode (0-1)
1602
1603 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1604
1605 AT+SNR:  Get the SNR of the last received packet
1606
1607 AT+RSSI:  Get the RSSI of the last received packet
1608
1609 AT+TDC:  Get or set the application data transmission interval in ms
1610
1611 AT+PORT:  Get or set the application port
1612
1613 AT+DISAT:  Disable AT commands
1614
1615 AT+PWORD: Set password, max 9 digits
1616
1617 AT+CHS:  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1618
1619 AT+CHE:  Get or Set eight channels mode,Only for US915,AU915,CN470
1620
1621 AT+PDTA:  Print the sector data from start page to stop page
1622
1623 AT+PLDTA:  Print the last few sets of data
1624
1625 AT+CLRDTA:  Clear the storage, record position back to 1st
1626
1627 AT+SLEEP:  Set sleep mode
1628
1629 AT+EXT:  Get or Set external sensor model
1630
1631 AT+BAT:  Get the current battery voltage in mV
1632
1633 AT+CFG:  Print all configurations
1634
1635 AT+WMOD:  Get or Set Work Mode
1636
1637 AT+ARTEMP:  Get or set the internal Temperature sensor alarm range
1638
1639 AT+CITEMP:  Get or set the internal Temperature sensor collection interval in min
1640
1641 AT+SETCNT:  Set the count at present
1642
1643 AT+RJTDC:  Get or set the ReJoin data transmission interval in min
1644
1645 AT+RPL:  Get or set response level
1646
1647 AT+TIMESTAMP:  Get or Set UNIX timestamp in second
1648
1649 AT+LEAPSEC:  Get or Set Leap Second
1650
1651 AT+SYNCMOD:  Get or Set time synchronization method
1652
1653 AT+SYNCTDC:  Get or set time synchronization interval in day
1654
1655 AT+PID:  Get or set the PID
1656
1657
1658 == 6.2 Where to use AT commands and Downlink commands ==
1659
1660
1661 **AT commands：**
1662
1663 [[image:image-20220620153708-1.png||_mstalt="429806" height="603" width="723"]]
1664
1665
1666 **Downlink commands:**
1667
1668
1669 (% style="color:blue" %)**TTN:**
1670
1671 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1672
1673
1674
1675 (% style="color:blue" %)**Helium：**
1676
1677 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1678
1679
1680
1681 (% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed**
1682
1683
1684 [[image:image-20220615094850-6.png||_mstalt="433082"]]
1685
1686
1687 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1688
1689
1690
1691 (% style="color:blue" %)**Aws:**
1692
1693 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1694
1695
1696 == 6.3 How to change the uplink interval？ ==
1697
1698
1699 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);"]]
1700
1701
1702 == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1703
1704
1705 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1706
1707 [[image:1655802313617-381.png||_mstalt="293917"]]
1708
1709
1710 (((
1711 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 LHT65S. 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.
1712 )))
1713
1714
1715 Input password and ATZ to activate LHT65S,As shown below:
1716
1717 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1718
1719
1720 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1721
1722
1723 [[image:image-20220615153355-1.png||_mstalt="430222"]]
1724
1725
1726 (% 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.
1727
1728 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1729
1730
1731
1732 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1733
1734 First connect the four lines；(% style="display:none" %)
1735
1736 [[image:image-20220621170938-1.png||_mstalt="431340" height="413" width="419"]]，(% style="display:none" %)
1737
1738
1739 Then use DuPont cable to short circuit port3 and port1, and then release them, so that the device enters bootlaod mode.
1740
1741 [[image:image-20220621170938-2.png||_mstalt="431704"]]
1742
1743
1744
1745 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1746
1747 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1748
1749
1750 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1751
1752
1753 When this interface appears, it indicates that the download has been completed.
1754
1755 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1756
1757
1758 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1759
1760
1761 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1762
1763
1764 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1765
1766
1767 **UART Port of LHT65S:**
1768
1769 * (% class="mark" %)**PB0: RXD**
1770 * (% class="mark" %)**PB1: TXD**
1771 * (% class="mark" %)**GND**
1772
1773 [[image:image-20220623112117-4.png||_mstalt="428350" height="459" width="343"]]
1774
1775
1776 (((
1777 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 LHT65S. 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.
1778 )))
1779
1780
1781 Input password and ATZ to activate LHT65S,As shown below:
1782
1783 [[image:image-20220615154519-3.png||_mstalt="431925" height="672" width="807"]]
1784
1785
1786 == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1787
1788
1789 [[image:image-20220623110706-1.png||_mstalt="427869"]]
1790
1791
1792 (% 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.
1793
1794 [[image:image-20220615170542-5.png||_mstalt="430638"]]
1795
1796
1797
1798 (% _mstmutation="1" style="color:blue" %)**Step2**(%%)：wiring method.(% style="display:none" %)
1799
1800 First connect the four lines；
1801
1802 [[image:image-20220623113959-5.png||_mstalt="433485" height="528" width="397"]]
1803
1804 Connect A8 and GND with Dupont wire for a while and then separate，enter reset mode
1805
1806
1807
1808 (% style="color:blue" %)**Step3：**(%%)Select the device port to be connected, baud rate and bin file to be downloaded.
1809
1810 [[image:image-20220615171334-6.png||_mstalt="431028"]]
1811
1812
1813 Click the (% style="color:blue" %)**start**(%%) button to start the firmware upgrade.
1814
1815
1816 When this interface appears, it indicates that the download has been completed.
1817
1818 [[image:image-20220620160723-8.png||_mstalt="430703"]]
1819
1820
1821 Finally,Disconnect 3.3v，Connect A8 and GND with Dupont wire for a while and then separate，exit reset mode
1822
1823
1824 == 6.8 Why can't I see the datalog information ==
1825
1826
1827 ~1. The time is not aligned, and the correct query command is not used.
1828
1829 2. Decoder error, did not parse the datalog data, the data was filtered.
1830
1831
1832 = 7. Order Info =
1833
1834
1835 Part Number: (% style="color:#4f81bd" %)** LHT65S-XX-YY**
1836
1837 (% style="color:#4f81bd" %)**XX **(%%): The default frequency band
1838
1839 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
1840 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
1841 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
1842 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
1843 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
1844 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**US915**(%%): LoRaWAN US915 band
1845 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**IN865**(%%): LoRaWAN IN865 band
1846 * (% style="color:#4f81bd" %)** **(% _mstmutation="1" style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1847
1848 (% style="color:#4f81bd" %)**YY**(%%): Sensor Accessories
1849
1850 * (% style="color:red" %)**E3**(%%): External Temperature Probe
1851
1852 = 8. Packing Info =
1853
1854
1855 **Package Includes**:
1856
1857 * LHT65S Temperature & Humidity Sensor x 1
1858 * Optional external sensor
1859
1860 **Dimension and weight**:
1861
1862 * Device Size:  13.5 x 7 x 3 cm
1863 * Device Weight: 105 g
1864
1865 = 9. Reference material =
1866
1867
1868 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0]]
1869
1870 = 10. FCC Warning =
1871
1872
1873 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:
1874
1875 (1) This device may not cause harmful interference；
1876
1877 (2) this device must accept any interference received, including interference that may cause undesired operation.

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