Version 271.20 by Xiaoling on 2022/06/20 14:55
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3 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
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6 (% style="text-align:center" %)
7 [[image:image-20220617163631-2.jpeg||height="704" width="617"]]
8
9
10 **Table of Contents:**
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14 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
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24
25 = 1.  Introduction =
26
27 == 1.1 ​ What is LTC2 LoRaWAN Temperature Transmitter ==
28
29 (((
30
31
32 (((
33 The Dragino LTC2 Industrial LoRaWAN Temperature Transmitter is designed to monitor temperature for different environment. It supports to read (% style="color:#4472c4" %)**PT100 probe**(%%) and convert the value to temperature and uplink to IoT server via LoRaWAN protocol.
34
35
36 LTC2 supports (% style="color:#4472c4" %)**Datalog feature**(%%). User can retrieve the sensor value via LoRaWAN downlink command.
37
38
39 LTC2 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%) for long time measurement. The battery can run 2~~10 years depends on the network environment and working mode.
40
41
42 Each LTC2 has (% style="color:#4472c4" %)**two internal 24-bit ADC interfaces** (%%)and are calibrated on 12 set resistors to make sure the accuracy measurement on wide range.
43
44
45 LTC2 is LoRaWAN v1.0.3 compatible. Each LTC2 is pre-load with a set of unique keys for LoRaWAN registration, register these keys to local LoRaWAN server and it will auto connect after power on.
46
47
48 [[image:image-20220617164020-3.png||height="450" width="1084"]]
49 )))
50
51
52 )))
53
54
55 == ​1.2  Features ==
56
57
58 * LoRaWAN v1.0.3 Class A
59 * max: 2 x monitor temperature channels
60 * Support 3 -wire PT-100
61 * 8500mAh Li-SOCI2 Battery
62 * Firmware upgrade via console
63 * Wall Mountable
64 * Configurable via LoRa or UART
65 * Datalog and retrieve via LoRaWAN
66 * Use pre-load PT100 probe or 3rd PT100 probe
67 * Factory calibration for different resistance range
68 * Support accuracy measure of resistance and upload
69 * Battery Monitoring and upload
70
71 (% style="display:none" %) ** **
72
73
74
75 == 1.3 ​ Applications ==
76
77 * Logistics and Supply Chain Management
78 * Food management
79 * Cold chains solution
80 * Industrial Monitoring and Control
81
82 == 1.4 Hardware Change log ==
83
84 LTC2 v1.0: Release.
85
86
87 == 1.5  Pin Definitions and Switch ==
88
89 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:1655456444657-750.png]](% title="Click and drag to resize" %)​
90
91 === (% title="Click and drag to resize" %)1.5.1  J(%%)umper JP2 ( Power ON)(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​ ===
92
93 Put a jumper on JP2 will power on the LTC2.
94
95
96 === 1.5.2  LED ===
97
98 The LED will flash in below case.
99
100 1. Send an uplink packet
101
102 === 1.5.3  PT100 Interfaces ===
103
104 There are two independent channels to connect 2 x PT100 probes.
105
106 Each channel has 3-wire connection for 3-wire PT100 probes.
107
108
109 === 1.5.4  Reset Button ===
110
111 Press this button will reboot the LTC2
112
113
114 === 1.6  Probe Variant ===
115
116 LTC2 provide default probe version. See below for the variant:
117
118 (% style="background-color:#f7faff; width:505px" %)
119 |=(% style="width: 70px;" %)**Model**|=(% style="width: 162px;" %)**Photo**|=(% style="width: 314px;" %)**Description**
120 |(% style="width:70px" %)LTC2-SI|(% style="width:162px" %)[[image:1655458404877-785.png]]|(% style="width:314px" %)(((
121 Standard IP68 Probe Version
122
123 * LTC2 with 1 x Standard IP68 PT100 probe.
124 * Installation: Insert
125 * Cable Length : 2m
126 * PT100 Class : Class A
127 * Probe Dimension: 4*30mm
128 * Measure Range: -50 ~~ 200 °C
129 * Suitable Environment: General environment
130 )))
131 |(% style="width:70px" %)LTC2-LT|(% style="width:162px" %)[[image:image-20220617172838-2.png]]|(% style="width:314px" %)(((
132 Low Temperature Version
133
134 * LTC2 with 1 x Low Temperature PT100 probe.
135 * Installation: Insert
136 * Cable Length : 2m
137 * PT100 Class : Class A
138 * Probe Dimension: 4*30mm
139 * Measure Range: -196 ~~ 150 °C
140 * Suitable Environment: Low temperature measurement, such as COVID vaccine transport
141 )))
142 |(% style="width:70px" %)LTC2-FS|(% style="width:162px" %)[[image:image-20220617172838-3.png]]|(% style="width:314px" %)(((
143 Food Safety Version
144
145 * LTC2 with 1 x Food Safety PT100 probe.
146 * Installation: Insert
147 * Cable Length : 2m
148 * PT100 Class : Class A
149 * Probe Dimension: 4*150mm
150 * Measure Range: -50 ~~ 200 °C
151 * Suitable Environment: Food temperature measurement
152 )))
153 |(% style="width:70px" %)LTC2-FT|(% style="width:162px" %)[[image:image-20220617172838-4.png]]|(% style="width:314px" %)(((
154 Flat Type Version
155
156 * LTC2 with 1 x Flat Type PT100 probe.
157 * Installation: Attached
158 * Cable Length : 2m
159 * PT100 Class : Class A
160 * Probe Dimension: 8*25mm
161 * Measure Range: -50 ~~ 200 °C
162 * Suitable Environment: Attached to the measure point.
163 )))
164 |(% style="width:70px" %)LTC2-HT|(% style="width:162px" %)[[image:image-20220617172838-5.png]]|(% style="width:314px" %)(((
165 High Temperature Version
166
167 * LTC2 with 1 x high temperature PT100 probe.
168 * Installation: Insert
169 * Cable Length : 3m
170 * PT100 Class : Class A
171 * Probe Dimension: 4*30mm
172 * Measure Range: -70 ~~ 550 °C
173
174 Suitable Environment: High Temperature
175 )))
176 |(% style="width:70px" %)LTC2-NA|(% style="width:162px" %)[[image:image-20220617172838-6.png]]|(% style="width:314px" %)(((
177 No Probe version:
178
179 * User can connect to their own PT100 Probe
180 * Grand Hole: M12
181 * Suitable Environment:
182
183 Connect to customized probe
184 )))
185
186 = 2.  How to use LTC2? =
187
188 == 2.1  Connect to PT100 sensors ==
189
190 LTC2 has different probe option provided for ordering, if user has LTC2 with probe, just skip this step. If user want to connect to a 3^^rd^^ party PT100 probe, please see [[CONNECT A 3(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)^^rd^^ PARTY PT100 probe>>path:#Customized_PT100]](%%).
191
192
193 === 2.2  How it works? ===
194
195 (((
196 The LTC2 is working in LoRaWAN OTAA Class A mode. Each LTC2 is shipped with a worldwide unique set of OTAA and ABP keys. User needs to input the OTAA or ABP keys in the LoRaWAN network server so to register. LTC2 will join the LoRaWAN network and start to transmit data. The default period for each uplink is **20 minutes**.
197
198 On each uplink, LTC2 will check its two ADC Interfaces and get the temperature from the sensor and send out to server.
199 )))
200
201
202
203 == 2.3  ​Quick guide to connect to LoRaWAN server (OTAA) ==
204
205 (((
206 Here is an example for how to join the [[TTN v3 LoRaWAN >>url:https://eu1.cloud.thethings.network/]]Server. Below is the network structure, in this demo we use [[DLOS8>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway.
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208 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:1655687566853-908.png]](% title="Click and drag to resize" %)​[[image:1655687927369-781.png]]
209 )))
210
211 (% title="Click and drag to resize" %)​(%%)The DLOS8 is already set to connect to [[TTN >>url:https://eu1.cloud.thethings.network/]]. Rest we need to is register the LTC2 to TTN v3:(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
212
213 (((
214
215
216 === 2.3.1 Step 1: Create a device in TTN with the OTAA keys from LTC2 ===
217
218
219
220 Below is TTN screen shot:
221
222 * Create Application first.
223 * Manually Add a LoRaWAN End Device device. Choose **OTAA** and **MAC v1.0.3**
224
225 [[image:1655690861020-685.png]]
226
227
228 [[image:1655690877643-259.png]]
229
230
231 Input the OTAA keys for LTC2.
232
233 Each LTC2 is shipped with a sticker with the default device EUI as below:
234
235 (% aria-label="image-20220607170145-1.jpeg image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220607170145-1.jpeg||data-widget="image"]]
236
237
238 * **Input these keys to device portal.**
239
240 [[image:image-20220620100853-1.png]]
241
242
243
244 * **Choose the Frequency band for this end node.**
245
246 [[image:image-20220620100853-2.png]]
247
248
249 * **Input APP Key in this page as well. **
250
251 [[image:image-20220620100853-3.png]]
252
253
254
255 Add payload formatter So TTNv3 knows how to parse the LTC2 upload value.
256
257
258 The payload for TTN can be found at below link:
259
260 https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/LTC2/Decoder/
261
262 [[image:image-20220620100853-4.png]]
263
264
265
266
267 === 2.3.2  Step 2: Power on LTC2 ===
268
269
270 LTC2 is power off when ship from factory.
271
272 Put a Jumper on JP2 to power on the device.
273
274
275 [[image:1655691076464-442.png]]
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277
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279 After power on, LTC2 will auto join to TTN network via the LoRaWAN coverage by DLOS8. After join success, LTC2 will start to update message to IoT server.
280
281 Below is an example uplink message which shows the LTC2 is sending Join Request to TTNv3.
282
283
284 [[image:1655691086647-147.png]]
285
286
287 After join successful, LTC2 will send uplink message with the sensor value.
288
289 [[image:1655691100066-163.png]]
290
291 Above value shows Channel1 detect 25.94 degree. There is no PT100 connected on Channel 2, so it shows -327.67.
292
293
294 )))
295
296
297 == 2.4  ​Uplink Payload ==
298
299 (((
300 (((
301 (((
302 Below is the uplink payload which shows
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305 )))
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307 (((
308
309 )))
310
311 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
312 |=(% style="width: 62.5px;" %)(((
313 **Size (bytes)**
314 )))|=(% style="width: 62.5px;" %)**2**|=**1**|=2|=2|=**4**
315 |(% style="width:62.5px" %)**Value**|(((
316 [[BAT>>||anchor="H2.4.1A0BatteryInfo"]]
317
318
319 )))|(((
320 [[Status & EXT>>||anchor="H"]]
321 )))|(((
322 [[Channel 1 data>>||anchor="H"]]
323 )))|(((
324 [[Channel 2 data>>||anchor="H"]]
325 )))|(((
326 [[Unix TimeStamp>>||anchor="H"]]
327 )))
328
329 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
330
331
332 (((
333 === (% style="color:blue" %)**BAT**(%%) ===
334
335 (% class="wikigeneratedid" %)
336 Ex1: 0x0E3C ⇒ 3644 (mV) = 3.644 V
337
338 (% class="wikigeneratedid" %)
339
340 )))
341
342 (((
343 === (% style="color:blue" %)**Status & EXT**(%%) ===
344 )))
345
346 [[image:image-20220620103724-6.png]]
347
348 * (% style="color:#037691" %)**Poll Message Flag**(%%):  1: This message is a poll message reply, 0: means this is a normal uplink.
349 * (% style="color:#037691" %)**Sync time OK**(%%):  1: Set time ok，0: N/A. After time SYNC request is send, device will set this bit to 0 until got the time stamp from application server.
350 * (% style="color:#037691" %)**Unix Time Request**(%%):  1: Request server downlink Unix time, 0 : N/A. In this mode, LTC2 will set this bit to 1 every 10 day to request a time SYNC. (AT+SYNCMOD to set this)
351 * (% style="color:#037691" %)**EXT**(%%):  The decode method for Channel 1 data and Channel 2 data
352 ** 0b(0001): Upload PT100 temperature, with 2 decimals, range:  **-327.67 ~~ 327.67 ℃**
353 ** 0b(0010): Upload PT100 temperature, with 1 decimals, range: ** -3276.7 ~~ 3276.7 ℃**
354 ** 0b(0011): Upload Resistance instead of Temperature, range:  **-327.67~~ 327.67 ohm**
355
356 (((
357 (% class="wikigeneratedid" %)
358
359
360
361 === (% style="color:blue" %)**Channel1 data and Channel 2 data**(%%) ===
362 )))
363
364 (((
365 (% class="wikigeneratedid" %)
366 [[image:image-20220620103651-5.png]]
367
368
369 === (% style="color:blue" %)**Unix TimeStamp**(%%) ===
370 )))
371
372 Refer to Datalog feature.
373
374 (% style="color:#037691" %)**Example Uplink Payload**:
375
376 **Uplink payload example 1:**  0CE9011422EC2D6073E83B
377
378 * Bat voltage:0x0CE9 =3305mV
379 * Ext=0x01
380 * Channel1 temp=0x1422/100=51.54 ℃
381 * Channel2 temp=(0xEC2D-65536)/100=-50.75 ℃
382 * System timestamp=0x6073E83B= 1618208827(UTC)
383
384 **Uplink payload example 2: ** 0CED020203FE056073E697
385
386 * Bat voltage:0x0CED =3309mV
387 * Ext=0x02
388 * Channel1 temp=0x0203/10=515.4 ℃
389 * Channel2 temp=(0xFE05-65536)/10=-507.5 ℃
390 * System timestamp=0x6073E697=1618208407(UTC)
391
392 **Uplink payload example 3 :**  0CE9032EDE1F406073E967
393
394 * Bat voltage:0x0CE9 =3305mV
395 * Ext=0x03
396 * Channel1 res=0x2EDE/100=119.98 ohm
397 * Channel2 res=0x1F40/100=80.00 ohm
398 * System timestamp=0x6073E967= 1618209127(UTC)
399
400 (% title="Click and drag to resize" %)​​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
401
402
403
404 == 2.5  Datalog Feature ==
405
406 LTC2 will auto get the time from LoRaWAN server during Join, and each uplink will then include a timestamp. When user want to retrieve sensor value, user can send a poll command from the IoT platform to ask sensor to send value in the required time slot.
407
408
409 === 2.5.1  Unix TimeStamp ===
410
411
412 LTC2 uses Unix TimeStamp format based on
413
414 [[image:1655694312268-590.png]]
415
416 Users can get this time from the link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
417
418 Below is the converter example
419
420 [[image:1655694332878-202.png]]
421
422 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set current time 2021 – Jan ~-~- 29 Friday 03:03:25
423
424
425 === 2.5.2  Set Device Time ===
426
427 (((
428 (((
429 There are two ways to set the device's time:
430 )))
431 )))
432
433 (((
434 (((
435 (% style="color:#4f81bd" %)**1. Through LoRaWAN MAC Command (Default settings)**
436 )))
437 )))
438
439 (((
440 (((
441 Users need to set SYNCMOD=1 to enable sync time via the MAC command.
442 )))
443 )))
444
445 (((
446 Once LTC2 Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and server will reply with (DeviceTimeAns) to send the current time to LTC2. If LTC2 fails to get the time from server, LTC2 will use the internal time and wait for next time request (AT+SYNCTDC to set time request period, default is 10 days).
447
448
449 )))
450
451 (((
452 (((
453 (% style="color:red" %)**Note**(%%): (% style="color:#4f81bd" %)LoRaWAN Server needs to support LoRaWAN v1.0.3(MAC v1.0.3) (%%)or higher to support this MAC command feature, Chirpstack,TTN v3 and loriot support but TTN 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 v2 if SYNCMOD=1.
454
455
456 )))
457
458 (((
459 (% style="color:#4f81bd" %)**2. Manually Set Time**
460 )))
461
462 (((
463 Users need to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server.
464 )))
465 )))
466
467
468
469 === 2.5.3  Poll sensor value ===
470
471 Users can poll sensor values based on timestamps. Below is the downlink command.
472
473 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:453.989px" %)
474 |=(% colspan="4" style="width: 451px;" %)**Downlink Command to poll Open/Close status (0x31)**
475 |(% style="width:59px" %)**1byte**|(% style="width:126px" %)**4bytes**|(% style="width:138px" %)**4bytes**|(% style="width:128px" %)**1byte**
476 |(% style="width:59px" %)31|(% style="width:126px" %)Timestamp start|(% style="width:138px" %)Timestamp end|(% style="width:128px" %)Uplink Interval
477
478 (((
479
480 )))
481
482 (((
483 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.
484
485 For example, downlink command[[image:image-20220620111056-7.png]]
486 )))
487
488 (((
489 Is to check 2021/5/16 01:00:00 to 2021/5/16 02:00:00's data
490
491 Uplink Internal =10s，means LTC2 will send one packet every 10s. range 5~~255s.
492 )))
493
494
495
496 === 2.5.4  Datalog Uplink payload ===
497
498 When server senser a datalog polling to LTC2, LTC2 will reply with one or more uplink messages as reply. Each uplink message includes multiply data entries value. Each entry has the same payload format as[[ normal uplink payload>>path:#uplink_paylpad]].
499
500
501 **Note:**
502
503 * Poll Message Flag is set to 1.
504 * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
505
506 For example, in US915 band, the max payload for different DR is:
507
508 a)      DR0: max is 11 bytes so one entry of data
509
510 b)      DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
511
512 c)      DR2: total payload includes 11 entries of data
513
514 d)  DR3: total payload includes 22 entries of data.
515
516 If devise doesn’t have any data in the polling time. Device will uplink 11 bytes of 0   
517
518
519 **Example:**
520
521 If LTC2 has below data inside Flash:
522
523 [[image:image-20220620134635-9.png]]
524
525
526 If user send below downlink command:
527
528 **3160A06E9060A098C00A**
529
530 Where : Start time: 60A06E90 = time 21/5/16 01:00:00
531
532 Stop time: 60A098C0 = time 21/5/16 04:00:00
533
534
535 LTC2 will uplink this payload.
536
537
538 [[image:image-20220620111850-8.png]]
539
540 (% style="color:red" %)**0E64410B49800160A072B8**(%%)0E61410B3F800160A077680E61410B33800160A07C180E64410B2C800160A080C80E64410B28800160A085780E64410B24800160A08A280E64410B23800160A08ED80E64410B22800160A09388(% style="color:red" %)**0E64410B1E800160A09838**
541
542
543 Where the first 11 bytes is for the first entry:
544
545 (% style="color:red" %)**0E64410B49800160A072B8**
546
547 Bat voltage:0x0E64 =3684mV
548
549
550 poll message flag & Ext=0x41,means reply data,Ext=1
551
552 Channel1 temp=0x0B49/100=28.89℃
553
554 Channel2 temp=0x8001/100=-327.67℃
555
556 System timestamp=0x60A072B8= 1621127864(UTC)
557
558
559
560 == 2.6  ​Alarm Mode ==
561
562 (((
563 LTC2 can monito the temperature in every CTTEMP time, when the temperature exceed the limit , it will uplink the sensor value immediately.
564
565 Detail commands see:
566
567 [[(% class="wikiinternallink wikiinternallink wikiinternallink" %)**Enable Alarm Mode.**>>path:#Enable_Alarm]]
568
569 [[(% class="wikiinternallink wikiinternallink wikiinternallink" %)**Config Alarm Sampling Time.**>>path:#Alarm_Sampling_Time]]
570
571 [[(% class="wikiinternallink wikiinternallink wikiinternallink" %)**Set Alarm Threshold**>>path:#Alarm_ThresHold]]
572
573
574 )))
575
576
577 = 3.  Configure LTC2 via AT Command or LoRaWAN Downlink =
578
579 (((
580 (((
581 Use can configure LTC2 via AT Command or LoRaWAN Downlink.
582 )))
583 )))
584
585 * (((
586 (((
587 AT Command Connection: See [[FAQ>>||anchor="H6.A0FAQ"]].
588 )))
589 )))
590 * (((
591 (((
592 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
593 )))
594 )))
595
596 (((
597 (((
598
599 )))
600
601 (((
602 There are two kinds of commands to configure LTC2, they are:
603 )))
604 )))
605
606 * (((
607 (((
608 (% style="color:#4f81bd" %)** General Commands**.
609 )))
610 )))
611
612 (((
613 (((
614 These commands are to configure:
615 )))
616 )))
617
618 * (((
619 (((
620 General system settings like: uplink interval.
621 )))
622 )))
623 * (((
624 (((
625 LoRaWAN protocol & radio related command.
626 )))
627 )))
628
629 (((
630 (((
631 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
632 )))
633 )))
634
635 (((
636 (((
637
638 )))
639 )))
640
641 * (((
642 (((
643 (% style="color:#4f81bd" %)** Commands special design for LTC2**
644 )))
645 )))
646
647 (((
648 (((
649 These commands only valid for LTC2, as below:(% title="Click and drag to resize" %)​
650 )))
651 )))
652
653 (% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​
654
655
656
657 == 3.1  Set Transmit Interval Time ==
658
659 Feature: Change LoRaWAN End Node Transmit Interval.
660
661 (% style="color:#037691" %)**AT Command: AT+TDC**
662
663 (% aria-label="image-20220610173409-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610173409-7.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
664
665
666 (((
667 (% style="color:#037691" %)**Downlink Command: 0x01**
668 )))
669
670 (((
671 (((
672 Format: Command Code (0x01) followed by 3 bytes time value.
673
674 (((
675 If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
676 )))
677
678 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
679 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
680 )))
681 )))
682
683
684
685
686 == 3.2  Enable PT100 channels ==
687
688 Feature: Enable PT100 channels. Default only Enable Channel 1
689
690 (% style="color:#037691" %)**AT Command: AT+ENPTCHNUM**
691
692 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:494px" %)
693 |=(% style="width: 165px;" %)**Command Example**|=(% style="width: 254px;" %)**Function**|=(% style="width: 73px;" %)**Response**
694 |(% style="width:165px" %)AT+ENPTCHNUM=?|(% style="width:254px" %)Get current ENPTCHNUM settings|(% style="width:73px" %)(((
695 1
696
697
698 OK
699 )))
700 |(% style="width:165px" %)AT+ ENPTCHNUM =1|(% colspan="2" style="width:327px" %)Enable channel 1
701 |(% style="width:165px" %)AT+ ENPTCHNUM =2|(% colspan="2" style="width:327px" %)Enable channel 1 and 2
702
703 (% style="color:#037691" %)**Downlink Command: 0xA1**
704
705 Total bytes: 2 bytes
706
707 Example:
708
709 * 0xA101: same as AT+ENPTCHNUM =1
710 * 0xA102: same as AT+ENPTCHNUM =2
711
712
713
714
715 == 3.3  Set External Sensor Mode ==
716
717 (((
718 Feature: Change External Sensor Mode.
719 )))
720
721 (((
722 (% style="color:#037691" %)**Downlink Command: AT+EXT**
723 )))
724
725 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
726
727 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:428px" %)
728 |(% style="width:155px" %)**Command Example**|(% style="width:180px" %)**Function**|(% style="width:90px" %)**Response**
729 |(% style="width:155px" %)AT+EXT=?|(% style="width:180px" %)Get current EXT settings|(% style="width:90px" %)(((
730 1
731
732
733 OK
734 )))
735 |(% style="width:155px" %)AT+EXT=1|(% colspan="2" style="width:270px" %)Set EXT to 0b(0001)
736 |(% style="width:155px" %)AT+EXT=2|(% colspan="2" style="width:270px" %)Set EXT to 0b(0010)
737 |(% style="width:155px" %)AT+EXT=3|(% colspan="2" style="width:270px" %)Set EXT to 0b(0011)
738
739 (% style="color:#037691" %)**Downlink Command: 0xA2**
740
741 Total bytes: 2 bytes
742
743 Example:
744
745 * 0xA201: same as AT+EXT=1
746
747
748
749
750 == 3.4 Quit AT Command ==
751
752 Feature: Quit AT Command mode, so user need to input password again before use AT Commands.
753
754 (% style="color:#037691" %)**AT Command: AT+DISAT**
755
756 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:446px" %)
757 |=(% style="width: 161px;" %)**Command Example**|=(% style="width: 193px;" %)**Function**|=(% style="width: 87px;" %)**Response**
758 |(% style="width:161px" %)AT+DISAT|(% style="width:193px" %)Quit AT Commands mode|(% style="width:87px" %)OK
759
760
761 (% style="color:#037691" %)**Downlink Command:**
762
763 No downlink command for this feature.
764
765
766
767 == 3.5 Set system time ==
768
769 Feature: Set system time, unix format. [[See here for formmat detail.>>path:#TimeStamp]]
770
771 (% style="color:#037691" %)**AT Command:**
772
773 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:506px" %)
774 |=(% style="width: 218px;" %)**Command Example**|=(% style="width: 285px;" %)**Function**
775 |(% style="width:218px" %)AT+TIMESTAMP=1611104352|(% style="width:285px" %)(((
776 OK
777
778 Set System time to 2021-01-20 00:59:12
779 )))
780
781
782 (% style="color:#037691" %)**Downlink Command:**
783
784 0x306007806000  ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
785
786
787
788 == 3.6 Set Time Sync Mode ==
789
790 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command.
791
792
793 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.
794
795
796 (% style="color:#037691" %)**AT Command:**
797
798 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:473px" %)
799 |=(% style="width: 157px;" %)**Command Example**|=(% style="width: 313px;" %)**Function**
800 |(% style="width:157px" %)AT+SYNCMOD=1|(% style="width:313px" %)Enable Sync system time via LoRaWAN MAC Command (DeviceTimeReq)
801
802
803 (% style="color:#037691" %)**Downlink Command:**
804
805 0x28 01 ~/~/ Same As AT+SYNCMOD=1
806
807 0x28 00 ~/~/ Same As AT+SYNCMOD=0
808
809
810
811 == 3.7 Set Time Sync Interval ==
812
813 Feature: Define System time sync interval. SYNCTDC default value: 10 days.
814
815 (% style="color:#037691" %)**AT Command:**
816
817 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:469px" %)
818 |=**Command Example**|=(% style="width: 306px;" %)**Function**
819 |AT+SYNCTDC=0x0A|(% style="width:306px" %)Set SYNCTDC to 10 (0x0A), so the sync time is 10 days.
820
821 (% style="color:#037691" %)**Downlink Command:**
822
823 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A
824
825
826
827 == 3.8 Retrieve data ==
828
829 Feature: Retrieval data for specify time slot.
830
831 (% style="color:#037691" %)**AT Command**(%%)**:**
832
833 No AT Command, only valid for downlink command.
834
835
836 (% style="color:#037691" %)**Downlink Command:**
837
838 [[See Poll Sensor Value>>path:#Poll_Sensor]].
839
840
841
842 == 3.9 Enable Alarm mode ==
843
844 Feature: Enable Alarm Mode.
845
846 (% style="color:#037691" %)**AT Command: AT_WMOD**
847
848 Total bytes: 2
849
850 Example:
851
852 0xA500: AT+WMOD=0(default)
853
854 0xA501: AT+WMOD=1(alarm mode)
855
856
857 (% style="color:#037691" %)**Downlink Command:**
858
859 [[See Poll Sensor Value>>path:#Poll_Sensor]].
860
861
862
863 == 3.10 Alarm check time ==
864
865 Feature: The time interval to check sensor value for Alarm.
866
867 (% style="color:#037691" %)**AT Command: AT+CITEMP**
868
869 Total bytes: 3
870
871 Example:
872
873 0xA60001: AT+CITEMP=1(default)
874
875 Set collection interval in 1min,only in alarm mode
876
877
878 (% style="color:#037691" %)**Downlink Command:**
879
880 [[See Poll Sensor Value>>path:#Poll_Sensor]].
881
882
883
884 == 3.11 Set Alarm Threshold ==
885
886 Feature: Set Alarm Threshold.
887
888 (% style="color:#037691" %)**AT Command: AT+ARTEMP**
889
890 Total bytes: 9  Unit: ℃
891
892 Example:
893
894 A7FF380320FF380320
895
896 AT+ARTEMP=-200,800,-200,800
897
898
899 A7000A0064000A0065
900
901 AT+ARTEMP=10,100,10,101
902
903 Channel 1 operating temp:10~~100
904
905 Channel 2 operating temp:10~~101
906
907
908 (% style="color:#037691" %)**Downlink Command:**
909
910 [[See Poll Sensor Value>>path:#Poll_Sensor]].
911
912
913
914 == 3.12 Set Calibrate Value ==
915
916 Feature: Set Calibrate value for PT100 cable.  Detail of use of this command please see [[connect to a customized PT100 Probe>>path:#Customized_PT100]].
917
918 (% style="color:#037691" %)**AT Command: AT+RCABLE**
919
920 Total bytes: 5
921
922 Example:
923
924 AT+RCABLE=296,300
925
926 Channel 1 rcable=0x0128/1000=0.296R
927
928 Channel 2 rcable=0x012C/1000=0.300R
929
930
931 (% style="color:#037691" %)**Downlink Command:**
932
933 0xA80128012C  ~-~->  Same as AT+RCABLE=296,300
934
935
936
937 == 3.13 Poll Calibrate Value ==
938
939 Feature: Poll Calibrate value. LTC2 will reply with this command send an uplink to server.
940
941 (% style="color:#037691" %)**AT Command: No AT Command.**
942
943
944 (% style="color:#037691" %)**Downlink Command:**
945
946 Example: A901
947
948 End nodes will send racable config to server
949
950 Like uplink payload: 010128012C
951
952
953
954 == 3.14 Print data entries base on page ==
955
956 Feature: Print the sector data from start page to stop page (max is 400 pages).
957
958 (% style="color:#037691" %)**AT Command: AT+PDTA**
959
960 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:731px" %)
961 |=(% style="width: 164px;" %)**Command Example**|=(% style="width: 563px;" %)**Response**
962 |(% style="width:164px" %)(((
963 AT+PDTA=259,260
964
965
966 Print page 259 to 260
967 )))|(% style="width:563px" %)(((
968 Stop Tx events when read sensor data
969
970 8021600  systime= 2021/5/16 00:17:44  1  3684  Temp1=28.71 Temp2=-327.67
971
972 8021610  systime= 2021/5/16 00:37:44  1  3685  Temp1=28.78 Temp2=-327.67
973
974 8021620  systime= 2021/5/16 00:57:44  1  3684  Temp1=28.83 Temp2=-327.67
975
976 8021630  systime= 2021/5/16 01:17:44  1  3684  Temp1=28.89 Temp2=-327.67
977
978 8021640  systime= 2021/5/16 01:37:44  1  3681  Temp1=28.79 Temp2=-327.67
979
980 8021650  systime= 2021/5/16 01:57:44  1  3681  Temp1=28.67 Temp2=-327.67
981
982 8021660  systime= 2021/5/16 02:17:44  1  3684  Temp1=28.60 Temp2=-327.67
983
984 8021670  systime= 2021/5/16 02:37:44  1  3684  Temp1=28.56 Temp2=-327.67
985
986 8021680  systime= 2021/5/16 02:57:44  1  3684  Temp1=28.52 Temp2=-327.67
987
988 8021690  systime= 2021/5/16 03:17:44  1  3684  Temp1=28.51 Temp2=-327.67
989
990 80216A0  systime= 2021/5/16 03:37:44  1  3684  Temp1=28.50 Temp2=-327.67
991
992 80216B0  systime= 2021/5/16 03:57:44  1  3684  Temp1=28.46 Temp2=-327.67
993
994 80216C0  systime= 2021/5/16 04:17:44  1  3684  Temp1=28.40 Temp2=-327.67
995
996 80216D0  systime= 2021/5/16 04:37:44  1  3683  Temp1=28.37 Temp2=-327.67
997
998 80216E0  systime= 2021/5/16 04:57:44  1  3684  Temp1=28.36 Temp2=-327.67
999
1000 80216F0  systime= 2021/5/16 05:17:44  1  3685  Temp1=28.32 Temp2=-327.67
1001
1002 Start Tx events
1003
1004 OK
1005 )))
1006
1007
1008 (% style="color:#037691" %)**Downlink Command:**
1009
1010 No downlink commands for feature
1011
1012
1013
1014
1015 == 3.15 Print last few data entries ==
1016
1017 Feature: Print the last few data entries
1018
1019 (% style="color:#037691" %)**AT Command: AT+PLDTA**
1020
1021 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:636px" %)
1022 |=(% style="width: 154px;" %)**Command Example**|=(% style="width: 479px;" %)**Response**
1023 |(% style="width:154px" %)(((
1024 AT+PLDTA=5
1025
1026
1027
1028 Print last 5 entries
1029 )))|(% style="width:479px" %)(((
1030 Stop Tx events when read sensor data
1031
1032 1 systime= 2021/5/17 03:12:37 1 3681 Temp1=26.01 Temp2=-327.67
1033
1034 2 systime= 2021/5/17 03:17:37 1 3682 Temp1=26.02 Temp2=-327.67
1035
1036 3 systime= 2021/5/17 03:22:37 1 3687 Temp1=25.94 Temp2=-327.67
1037
1038 4 systime= 2021/5/17 03:27:37 1 3684 Temp1=25.95 Temp2=-327.67
1039
1040 5 systime= 2021/5/17 03:32:37 1 3684 Temp1=26.20 Temp2=-327.67
1041
1042 Start Tx events
1043
1044 OK
1045 )))
1046
1047
1048 (% style="color:#037691" %)**Downlink Command:**
1049
1050 No downlink commands for feature
1051
1052
1053
1054 == 3.16 Clear Flash Record ==
1055
1056 Feature: Clear flash storage for data log feature.
1057
1058 (% style="color:#037691" %)**AT Command: AT+CLRDTA**
1059
1060 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:511px" %)
1061 |=(% style="width: 157px;" %)**Command Example**|=(% style="width: 136px;" %)**Function**|=(% style="width: 213px;" %)**Response**
1062 |(% style="width:157px" %)AT+CLRDTA|(% style="width:136px" %)Clear date record|(% style="width:213px" %)(((
1063 Clear all stored sensor data…
1064
1065 OK
1066 )))
1067
1068
1069 (% style="color:#037691" %)**Downlink Command: 0xA3**
1070
1071 * Example: 0xA301 ~/~/Same as AT+CLRDTA
1072
1073
1074
1075 = 4. Battery & How to replace =
1076
1077 == 4.1 Battery Type ==
1078
1079 (((
1080 LDDS04 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
1081 )))
1082
1083 (((
1084 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
1085 )))
1086
1087 (% aria-label="1654593587246-335.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654593587246-335.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none; left:0px; top:-15px" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" tabindex="-1" %)​(%%)​
1088
1089
1090 Minimum Working Voltage for the LDDS04:
1091
1092 LDDS04:  2.45v ~~ 3.6v
1093
1094
1095
1096 == 4.2 Replace Battery ==
1097
1098 (((
1099 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
1100 )))
1101
1102 (((
1103 And make sure the positive and negative pins match.
1104 )))
1105
1106
1107
1108 == 4.3 Power Consumption Analyze ==
1109
1110 (((
1111 Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
1112 )))
1113
1114 (((
1115 Instruction to use as below:
1116 )))
1117
1118
1119 **Step 1 :**  Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
1120
1121 [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
1122
1123
1124 **Step 2 :**  Open it and choose
1125
1126 * Product Model
1127 * Uplink Interval
1128 * Working Mode
1129
1130 And the Life expectation in difference case will be shown on the right.
1131
1132 (% aria-label="1654593605679-189.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654593605679-189.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png) rgba(220, 220, 220, 0.5); left:0px; top:-15px" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none; left:0px; top:-15px" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png) rgba(220, 220, 220, 0.5); left:0px; top:-15px" tabindex="-1" title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none; left:0px; top:-15px" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" tabindex="-1" %)​(%%)​
1133
1134
1135 The battery related documents as below:
1136
1137 * (((
1138 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1139 )))
1140 * (((
1141 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1142 )))
1143 * (((
1144 [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
1145 )))
1146
1147 (% aria-label="image-20220607172042-11.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220607172042-11.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none; left:0px; top:-15px" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% aria-label="Data URI image image widget" contenteditable="false" role="region" style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" tabindex="-1" %)​(%%)​
1148
1149
1150
1151 === 4.3.1 ​Battery Note ===
1152
1153 (((
1154 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
1155 )))
1156
1157
1158
1159 === ​4.3.2 Replace the battery ===
1160
1161 (((
1162 You can change the battery in the LSPH01.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
1163 )))
1164
1165
1166 (((
1167 The default battery pack of LSPH01 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
1168 )))
1169
1170
1171 = 5.  Use AT Command =
1172
1173 == 5.1  Access AT Commands ==
1174
1175 LDDS04 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS04 for using AT command, as below.
1176
1177 (% aria-label="1654940081538-914.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654940081538-914.png||data-widget="image"]](% style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1178
1179
1180 **Connection:**
1181
1182 (% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
1183
1184 (% style="background-color:yellow" %)** USB TTL TXD  <~-~-~-~-> UART_RXD**
1185
1186 (% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
1187
1188
1189 (((
1190 (((
1191 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS04.
1192 )))
1193
1194 (((
1195 LDDS04 will output system info once power on as below:
1196 )))
1197 )))
1198
1199
1200 (% aria-label="1654593712276-618.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654593712276-618.png||data-widget="image"]](% style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1201
1202 Valid AT Command please check [[Configure Device>>||anchor="H3.A0ConfigureLDDS04viaATCommandorLoRaWANDownlink"]].
1203
1204
1205
1206 = 6.  FAQ =
1207
1208 == 6.1  How to change the LoRa Frequency Bands/Region ==
1209
1210 You can follow the instructions for [[how to upgrade image>>||anchor="H2.9A0200BFirmwareChangeLog"]].
1211 When downloading the images, choose the required image file for download. ​
1212
1213
1214
1215 = 7.  Trouble Shooting =
1216
1217 == 7.1  AT Command input doesn't work ==
1218
1219 In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
1220
1221 (((
1222
1223 )))
1224
1225
1226 = 8.  Order Info =
1227
1228 == 8.1  Main Device LDDS04 ==
1229
1230 Part Number **:** (% style="color:blue" %)**LDDS04-XX**
1231
1232
1233 (% style="color:blue" %)**XX**(%%)**: **The default frequency band
1234
1235 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1236 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1237 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1238 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1239 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1240 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1241 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1242 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1243
1244 == 8.2  Probe Model ==
1245
1246 Detail See [[Probe Option>>path:#Probe_Option]] Section
1247
1248 * A01A-15
1249 * A02-15
1250 * A13-15
1251 * A16-15
1252
1253 = 9. ​ Packing Info =
1254
1255
1256 **Package Includes**:
1257
1258 * LDDS04 LoRaWAN 4-Channels Distance Sensor x 1
1259
1260 **Dimension and weight**:
1261
1262 * Device Size: cm
1263 * Device Weight: g
1264 * Package Size / pcs : cm
1265 * Weight / pcs : g
1266
1267 = 10.  ​Support =
1268
1269 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1270 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].

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