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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.2
edited by Xiaoling
on 2022/06/15 10:46
Change comment: There is no comment for this version
To version 151.11
edited by Xiaoling
on 2022/06/11 09:38
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
1 +LDDS75 - LoRaWAN Distance Detection Sensor User Manual
Content
... ... @@ -1,10 +1,11 @@
1 1  (% style="text-align:center" %)
2 -[[image:1655254599445-662.png]]
2 +[[image:1654846127817-788.png]]
3 3  
4 +**Contents:**
4 4  
6 +{{toc/}}
5 5  
6 6  
7 -**Table of Contents:**
8 8  
9 9  
10 10  
... ... @@ -11,11 +11,9 @@
11 11  
12 12  
13 13  
14 -
15 -
16 16  = 1.  Introduction =
17 17  
18 -== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
17 +== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
19 19  
20 20  (((
21 21  
... ... @@ -22,8 +22,7 @@
22 22  
23 23  (((
24 24  (((
25 -(((
26 -The Dragino LDDS20 is a (% style="color:#4472c4" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:#4472c4" %)**none-contact method **(%%)to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
24 +The Dragino LDDS75 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
27 27  )))
28 28  
29 29  (((
... ... @@ -31,7 +31,7 @@
31 31  )))
32 32  
33 33  (((
34 -The LDDS20 sensor is installed directly below the container to detect the height of the liquid level. User doesn’t need to open a hole on the container to be tested. The (% style="color:#4472c4" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**. 
32 +It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
35 35  )))
36 36  
37 37  (((
... ... @@ -39,7 +39,7 @@
39 39  )))
40 40  
41 41  (((
42 -LDDS20 uses ultrasonic sensing technology for distance measurement. LDDS20 is of high accuracy to measure various liquid such as: (% style="color:#4472c4" %)**toxic substances**(%%), (% style="color:#4472c4" %)**strong acids**(%%), (% style="color:#4472c4" %)**strong alkalis**(%%) and (% style="color:#4472c4" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
40 +The LoRa wireless technology used in LDDS75 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
43 43  )))
44 44  
45 45  (((
... ... @@ -47,7 +47,7 @@
47 47  )))
48 48  
49 49  (((
50 -The LoRa wireless technology used in LDDS20 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
48 +LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
51 51  )))
52 52  
53 53  (((
... ... @@ -55,7 +55,7 @@
55 55  )))
56 56  
57 57  (((
58 -LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
56 +Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
59 59  )))
60 60  
61 61  (((
... ... @@ -63,24 +63,13 @@
63 63  )))
64 64  
65 65  (((
66 -Each LDDS20 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
67 -)))
68 -
69 -(((
70 -
71 -)))
72 -)))
73 -
74 -(((
75 -(((
76 76  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
77 77  )))
78 78  )))
79 79  )))
80 -)))
81 81  
82 82  
83 -[[image:1655255122126-327.png]]
70 +[[image:1654847051249-359.png]]
84 84  
85 85  
86 86  
... ... @@ -88,10 +88,9 @@
88 88  
89 89  * LoRaWAN 1.0.3 Class A
90 90  * Ultra low power consumption
91 -* Liquid Level Measurement by Ultrasonic technology
92 -* Measure through container, No need to contact Liquid.
93 -* Valid level range 20mm - 2000mm
94 -* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
78 +* Distance Detection by Ultrasonic technology
79 +* Flat object range 280mm - 7500mm
80 +* Accuracy: ±(1cm+S*0.3%) (S: Distance)
95 95  * Cable Length : 25cm
96 96  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
97 97  * AT Commands to change parameters
... ... @@ -98,130 +98,76 @@
98 98  * Uplink on periodically
99 99  * Downlink to change configure
100 100  * IP66 Waterproof Enclosure
101 -* 8500mAh Battery for long term use
87 +* 4000mAh or 8500mAh Battery for long term use
102 102  
103 -== 1.3  Suitable Container & Liquid ==
104 104  
105 -* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
106 -* Container shape is regular, and surface is smooth.
107 -* Container Thickness:
108 -** Pure metal material.  2~~8mm, best is 3~~5mm
109 -** Pure non metal material: <10 mm
110 -* Pure liquid without irregular deposition.
111 111  
112 -== 1.4  Mechanical ==
113 113  
114 -[[image:image-20220615090910-1.png]]
115 115  
93 +== 1.3  Specification ==
116 116  
117 -[[image:image-20220615090910-2.png]]
95 +=== 1.3.1  Rated environmental conditions ===
118 118  
97 +[[image:image-20220610154839-1.png]]
119 119  
99 +(((
100 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
101 +)))
120 120  
121 -== 1.5  Install LDDS20 ==
122 122  
123 123  
124 -(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
105 +=== 1.3.2  Effective measurement range Reference beam pattern ===
125 125  
126 -LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
107 +**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
127 127  
128 -[[image:image-20220615091045-3.png]]
129 129  
130 130  
111 +[[image:1654852253176-749.png]]
131 131  
132 -(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
133 133  
134 -For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
135 135  
136 -[[image:image-20220615092010-11.png]]
115 +(((
116 +**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
117 +)))
137 137  
138 138  
139 -No polish needed if the container is shine metal surface without paint or non-metal container.
120 +[[image:1654852175653-550.png]](% style="display:none" %) ** **
140 140  
141 -[[image:image-20220615092044-12.png]]
142 142  
143 143  
124 +== 1.5 ​ Applications ==
144 144  
145 -(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
126 +* Horizontal distance measurement
127 +* Liquid level measurement
128 +* Parking management system
129 +* Object proximity and presence detection
130 +* Intelligent trash can management system
131 +* Robot obstacle avoidance
132 +* Automatic control
133 +* Sewer
134 +* Bottom water level monitoring
146 146  
147 -Power on LDDS75, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
148 148  
149 149  
150 -It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
151 151  
152 -[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
153 153  
140 +== 1.6  Pin mapping and power on ==
154 154  
155 -After paste the LDDS20 well, power on LDDS20. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
156 156  
143 +[[image:1654847583902-256.png]]
157 157  
158 -(% style="color:red" %)**LED Status:**
159 159  
160 -* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
161 161  
162 -* (% style="color:blue" %)BLUE LED(% style="color:red" %) always ON(%%): Sensor is power on but doesn’t detect liquid. There is problem in installation point.
163 -* (% style="color:blue" %)BLUE LED(% style="color:red" %) slowly blinking(%%): Sensor detects Liquid Level, The installation point is good.
147 += 2.  Configure LDDS75 to connect to LoRaWAN network =
164 164  
165 -LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
166 -
167 -
168 -(% style="color:red" %)**Note 2:**
169 -
170 -(% style="color:red" %)Ultrasonic coupling paste (%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
171 -
172 -
173 -
174 -(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
175 -
176 -Prepare Eproxy AB glue.
177 -
178 -Put Eproxy AB glue in the sensor and press it hard on the container installation point.
179 -
180 -Reset LDDS20 and see if the BLUE LED is slowly blinking.
181 -
182 -[[image:image-20220615091045-8.png||height="226" width="380"]] [[image:image-20220615091045-9.png||height="239" width="339"]]
183 -
184 -
185 -(% style="color:red" %)**Note 1:**
186 -
187 -Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
188 -
189 -
190 -(% style="color:red" %)**Note 2:**
191 -
192 -(% style="color:red" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
193 -
194 -
195 -
196 -== 1.6 ​ Applications ==
197 -
198 -* Smart liquid control solution.
199 -* Smart liquefied gas solution.
200 -
201 -== 1.7  Precautions ==
202 -
203 -* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
204 -* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
205 -* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
206 -
207 -== 1.8  Pin mapping and power on ==
208 -
209 -
210 -[[image:1655257026882-201.png]]
211 -
212 -
213 -
214 -= 2.  Configure LDDS20 to connect to LoRaWAN network =
215 -
216 -
217 217  == 2.1  How it works ==
218 218  
219 219  (((
220 -The LDDS20 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS20. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
152 +The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
221 221  )))
222 222  
223 223  (((
224 -In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0UsingtheATCommands"]]to set the keys in the LDDS20.
156 +In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
225 225  )))
226 226  
227 227  
... ... @@ -233,7 +233,7 @@
233 233  )))
234 234  
235 235  (((
236 -[[image:1655257698953-697.png]]
168 +[[image:1654848616367-242.png]]
237 237  )))
238 238  
239 239  (((
... ... @@ -241,13 +241,11 @@
241 241  )))
242 242  
243 243  (((
244 -
245 -
246 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
176 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
247 247  )))
248 248  
249 249  (((
250 -Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
180 +Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
251 251  )))
252 252  
253 253  [[image:image-20220607170145-1.jpeg]]
... ... @@ -262,8 +262,6 @@
262 262  )))
263 263  
264 264  (((
265 -
266 -
267 267  **Add APP EUI in the application**
268 268  )))
269 269  
... ... @@ -277,7 +277,6 @@
277 277  [[image:image-20220610161353-7.png]]
278 278  
279 279  
280 -
281 281  You can also choose to create the device manually.
282 282  
283 283   [[image:image-20220610161538-8.png]]
... ... @@ -290,17 +290,16 @@
290 290  
291 291  
292 292  
293 -(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
220 +(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
294 294  
295 295  
296 296  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
297 297  
298 -[[image:image-20220615095102-14.png]]
225 +[[image:image-20220610161724-10.png]]
299 299  
300 300  
301 -
302 302  (((
303 -(% style="color:blue" %)**Step 3**(%%)**:**  The LDDS20 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
229 +(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
304 304  )))
305 305  
306 306  [[image:1654849068701-275.png]]
... ... @@ -311,10 +311,12 @@
311 311  
312 312  (((
313 313  (((
314 -LDDS20 will uplink payload via LoRaWAN with below payload format: 
240 +LDDS75 will uplink payload via LoRaWAN with below payload format: 
241 +)))
315 315  
316 -Uplink payload includes in total 8 bytes.
317 -Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload).
243 +(((
244 +Uplink payload includes in total 4 bytes.
245 +Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
318 318  )))
319 319  )))
320 320  
... ... @@ -341,7 +341,7 @@
341 341  === 2.3.1  Battery Info ===
342 342  
343 343  
344 -Check the battery voltage for LDDS20.
272 +Check the battery voltage for LDDS75.
345 345  
346 346  Ex1: 0x0B45 = 2885mV
347 347  
... ... @@ -352,20 +352,24 @@
352 352  === 2.3.2  Distance ===
353 353  
354 354  (((
355 -Get the distance. Flat object range 20mm - 2000mm.
283 +Get the distance. Flat object range 280mm - 7500mm.
356 356  )))
357 357  
358 358  (((
359 -For example, if the data you get from the register is __0x06 0x05__, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0605(H) = 1541 (D) = 1541 mm.**
287 +For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
360 360  )))
361 361  
362 -* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 -* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
291 +* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
292 +* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
365 365  
294 +
295 +
296 +
297 +
366 366  === 2.3.3  Interrupt Pin ===
367 367  
368 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
300 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
369 369  
370 370  **Example:**
371 371  
... ... @@ -406,304 +406,708 @@
406 406  While using TTN network, you can add the payload format to decode the payload.
407 407  
408 408  
409 -[[image:1655261164557-670.png]]
341 +[[image:1654850829385-439.png]]
410 410  
411 411  The payload decoder function for TTN V3 is here:
412 412  
413 413  (((
414 -LDDS20 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS20/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
346 +LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
415 415  )))
416 416  
417 417  
418 418  
419 -== 2.4  Downlink Payload ==
351 +== 2.4  Uplink Interval ==
420 420  
421 -By default, LDDS20 prints the downlink payload to console port.
353 +The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
422 422  
423 -[[image:image-20220615100930-15.png]]
424 424  
425 425  
426 -**Examples:**
357 +== 2.5  ​Show Data in DataCake IoT Server ==
427 427  
359 +(((
360 +[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
361 +)))
428 428  
429 -* (% style="color:blue" %)**Set TDC**
363 +(((
364 +
365 +)))
430 430  
431 -If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
367 +(((
368 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
369 +)))
432 432  
433 -Payload:    01 00 00 1E    TDC=30S
371 +(((
372 +(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
373 +)))
434 434  
435 -Payload:    01 00 00 3C    TDC=60S
436 436  
376 +[[image:1654592790040-760.png]]
437 437  
438 -* (% style="color:blue" %)**Reset**
439 439  
440 -If payload = 0x04FF, it will reset the LDDS20
379 +[[image:1654592800389-571.png]]
441 441  
442 442  
443 -* (% style="color:blue" %)**CFM**
382 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 444  
445 -Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
384 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
446 446  
386 +[[image:1654851029373-510.png]]
447 447  
448 448  
449 -== 2.5  ​Show Data in DataCake IoT Server ==
389 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
450 450  
391 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
392 +
393 +
394 +
395 +== 2.6  Frequency Plans ==
396 +
451 451  (((
452 -[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
398 +The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
453 453  )))
454 454  
401 +
402 +
403 +=== 2.6.1  EU863-870 (EU868) ===
404 +
455 455  (((
406 +(% style="color:blue" %)**Uplink:**
407 +)))
408 +
409 +(((
410 +868.1 - SF7BW125 to SF12BW125
411 +)))
412 +
413 +(((
414 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
415 +)))
416 +
417 +(((
418 +868.5 - SF7BW125 to SF12BW125
419 +)))
420 +
421 +(((
422 +867.1 - SF7BW125 to SF12BW125
423 +)))
424 +
425 +(((
426 +867.3 - SF7BW125 to SF12BW125
427 +)))
428 +
429 +(((
430 +867.5 - SF7BW125 to SF12BW125
431 +)))
432 +
433 +(((
434 +867.7 - SF7BW125 to SF12BW125
435 +)))
436 +
437 +(((
438 +867.9 - SF7BW125 to SF12BW125
439 +)))
440 +
441 +(((
442 +868.8 - FSK
443 +)))
444 +
445 +(((
456 456  
457 457  )))
458 458  
459 459  (((
460 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
450 +(% style="color:blue" %)**Downlink:**
461 461  )))
462 462  
463 463  (((
464 -(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
454 +Uplink channels 1-9 (RX1)
465 465  )))
466 466  
457 +(((
458 +869.525 - SF9BW125 (RX2 downlink only)
459 +)))
467 467  
468 -[[image:1654592790040-760.png]]
469 469  
470 470  
471 -[[image:1654592800389-571.png]]
463 +=== 2.6.2  US902-928(US915) ===
472 472  
465 +(((
466 +Used in USA, Canada and South America. Default use CHE=2
473 473  
474 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
468 +(% style="color:blue" %)**Uplink:**
475 475  
476 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
470 +903.9 - SF7BW125 to SF10BW125
477 477  
478 -[[image:1654851029373-510.png]]
472 +904.1 - SF7BW125 to SF10BW125
479 479  
474 +904.3 - SF7BW125 to SF10BW125
480 480  
481 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
476 +904.5 - SF7BW125 to SF10BW125
482 482  
483 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
478 +904.7 - SF7BW125 to SF10BW125
484 484  
480 +904.9 - SF7BW125 to SF10BW125
485 485  
482 +905.1 - SF7BW125 to SF10BW125
486 486  
487 -== 2.6  LED Indicator ==
484 +905.3 - SF7BW125 to SF10BW125
488 488  
489 -The LDDS20 has an internal LED which is to show the status of different state.
490 490  
487 +(% style="color:blue" %)**Downlink:**
491 491  
492 -* Blink once when device power on.
493 -* The device detects the sensor and flashes 5 times.
494 -* Solid ON for 5 seconds once device successful Join the network.
495 -* Blink once when device transmit a packet.
489 +923.3 - SF7BW500 to SF12BW500
496 496  
491 +923.9 - SF7BW500 to SF12BW500
497 497  
498 -== 2.7  ​Firmware Change Log ==
493 +924.5 - SF7BW500 to SF12BW500
499 499  
495 +925.1 - SF7BW500 to SF12BW500
500 500  
497 +925.7 - SF7BW500 to SF12BW500
498 +
499 +926.3 - SF7BW500 to SF12BW500
500 +
501 +926.9 - SF7BW500 to SF12BW500
502 +
503 +927.5 - SF7BW500 to SF12BW500
504 +
505 +923.3 - SF12BW500(RX2 downlink only)
506 +
507 +
508 +
509 +)))
510 +
511 +=== 2.6.3  CN470-510 (CN470) ===
512 +
501 501  (((
502 -**Firmware download link:  **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
514 +Used in China, Default use CHE=1
503 503  )))
504 504  
505 505  (((
518 +(% style="color:blue" %)**Uplink:**
519 +)))
520 +
521 +(((
522 +486.3 - SF7BW125 to SF12BW125
523 +)))
524 +
525 +(((
526 +486.5 - SF7BW125 to SF12BW125
527 +)))
528 +
529 +(((
530 +486.7 - SF7BW125 to SF12BW125
531 +)))
532 +
533 +(((
534 +486.9 - SF7BW125 to SF12BW125
535 +)))
536 +
537 +(((
538 +487.1 - SF7BW125 to SF12BW125
539 +)))
540 +
541 +(((
542 +487.3 - SF7BW125 to SF12BW125
543 +)))
544 +
545 +(((
546 +487.5 - SF7BW125 to SF12BW125
547 +)))
548 +
549 +(((
550 +487.7 - SF7BW125 to SF12BW125
551 +)))
552 +
553 +(((
506 506  
507 507  )))
508 508  
509 509  (((
510 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
558 +(% style="color:blue" %)**Downlink:**
511 511  )))
512 512  
561 +(((
562 +506.7 - SF7BW125 to SF12BW125
563 +)))
513 513  
565 +(((
566 +506.9 - SF7BW125 to SF12BW125
567 +)))
514 514  
515 -== 2.8  Battery Analysis ==
569 +(((
570 +507.1 - SF7BW125 to SF12BW125
571 +)))
516 516  
573 +(((
574 +507.3 - SF7BW125 to SF12BW125
575 +)))
517 517  
577 +(((
578 +507.5 - SF7BW125 to SF12BW125
579 +)))
518 518  
581 +(((
582 +507.7 - SF7BW125 to SF12BW125
583 +)))
519 519  
520 -=== 2.8.1  Battery Type ===
585 +(((
586 +507.9 - SF7BW125 to SF12BW125
587 +)))
521 521  
522 -The LDDS20 battery is a combination of a 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
589 +(((
590 +508.1 - SF7BW125 to SF12BW125
591 +)))
523 523  
593 +(((
594 +505.3 - SF12BW125 (RX2 downlink only)
595 +)))
524 524  
525 -The battery related documents as below:
526 526  
527 -* (((
528 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
598 +
599 +=== 2.6.4  AU915-928(AU915) ===
600 +
601 +(((
602 +Default use CHE=2
603 +
604 +(% style="color:blue" %)**Uplink:**
605 +
606 +916.8 - SF7BW125 to SF12BW125
607 +
608 +917.0 - SF7BW125 to SF12BW125
609 +
610 +917.2 - SF7BW125 to SF12BW125
611 +
612 +917.4 - SF7BW125 to SF12BW125
613 +
614 +917.6 - SF7BW125 to SF12BW125
615 +
616 +917.8 - SF7BW125 to SF12BW125
617 +
618 +918.0 - SF7BW125 to SF12BW125
619 +
620 +918.2 - SF7BW125 to SF12BW125
621 +
622 +
623 +(% style="color:blue" %)**Downlink:**
624 +
625 +923.3 - SF7BW500 to SF12BW500
626 +
627 +923.9 - SF7BW500 to SF12BW500
628 +
629 +924.5 - SF7BW500 to SF12BW500
630 +
631 +925.1 - SF7BW500 to SF12BW500
632 +
633 +925.7 - SF7BW500 to SF12BW500
634 +
635 +926.3 - SF7BW500 to SF12BW500
636 +
637 +926.9 - SF7BW500 to SF12BW500
638 +
639 +927.5 - SF7BW500 to SF12BW500
640 +
641 +923.3 - SF12BW500(RX2 downlink only)
642 +
643 +
644 +
529 529  )))
530 -* (((
531 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
646 +
647 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
648 +
649 +(((
650 +(% style="color:blue" %)**Default Uplink channel:**
532 532  )))
533 -* (((
534 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
652 +
653 +(((
654 +923.2 - SF7BW125 to SF10BW125
535 535  )))
536 536  
537 - [[image:image-20220615102527-16.png]]
657 +(((
658 +923.4 - SF7BW125 to SF10BW125
659 +)))
538 538  
661 +(((
662 +
663 +)))
539 539  
665 +(((
666 +(% style="color:blue" %)**Additional Uplink Channel**:
667 +)))
540 540  
541 -== 2.8.2  Battery Note ==
669 +(((
670 +(OTAA mode, channel added by JoinAccept message)
671 +)))
542 542  
543 -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 uplink data, then the battery life may be decreased.
673 +(((
674 +
675 +)))
544 544  
677 +(((
678 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
679 +)))
545 545  
681 +(((
682 +922.2 - SF7BW125 to SF10BW125
683 +)))
546 546  
547 -=== 2.8.3  Replace the battery ===
685 +(((
686 +922.4 - SF7BW125 to SF10BW125
687 +)))
548 548  
549 549  (((
550 -You can change the battery in the LDDS75.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.
690 +922.6 - SF7BW125 to SF10BW125
551 551  )))
552 552  
553 553  (((
694 +922.8 - SF7BW125 to SF10BW125
695 +)))
696 +
697 +(((
698 +923.0 - SF7BW125 to SF10BW125
699 +)))
700 +
701 +(((
702 +922.0 - SF7BW125 to SF10BW125
703 +)))
704 +
705 +(((
554 554  
555 555  )))
556 556  
557 557  (((
558 -The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 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)
710 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
559 559  )))
560 560  
713 +(((
714 +923.6 - SF7BW125 to SF10BW125
715 +)))
561 561  
717 +(((
718 +923.8 - SF7BW125 to SF10BW125
719 +)))
562 562  
563 -== 2.8.4  Battery Life Analyze ==
721 +(((
722 +924.0 - SF7BW125 to SF10BW125
723 +)))
564 564  
565 -Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
725 +(((
726 +924.2 - SF7BW125 to SF10BW125
727 +)))
566 566  
567 -[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
729 +(((
730 +924.4 - SF7BW125 to SF10BW125
731 +)))
568 568  
733 +(((
734 +924.6 - SF7BW125 to SF10BW125
735 +)))
569 569  
737 +(((
738 +
739 +)))
570 570  
571 -= 3.  Using the AT Commands =
741 +(((
742 +(% style="color:blue" %)**Downlink:**
743 +)))
572 572  
573 573  (((
746 +Uplink channels 1-8 (RX1)
747 +)))
748 +
574 574  (((
750 +923.2 - SF10BW125 (RX2)
751 +)))
752 +
753 +
754 +
755 +=== 2.6.6  KR920-923 (KR920) ===
756 +
757 +(((
758 +(% style="color:blue" %)**Default channel:**
759 +)))
760 +
761 +(((
762 +922.1 - SF7BW125 to SF12BW125
763 +)))
764 +
765 +(((
766 +922.3 - SF7BW125 to SF12BW125
767 +)))
768 +
769 +(((
770 +922.5 - SF7BW125 to SF12BW125
771 +)))
772 +
773 +(((
575 575  
576 576  )))
776 +
777 +(((
778 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
577 577  )))
578 578  
579 -== 3.1  Access AT Commands ==
781 +(((
782 +922.1 - SF7BW125 to SF12BW125
783 +)))
580 580  
581 -LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below.
785 +(((
786 +922.3 - SF7BW125 to SF12BW125
787 +)))
582 582  
789 +(((
790 +922.5 - SF7BW125 to SF12BW125
791 +)))
583 583  
584 -[[image:image-20220610172924-4.png||height="483" width="988"]]
793 +(((
794 +922.7 - SF7BW125 to SF12BW125
795 +)))
585 585  
797 +(((
798 +922.9 - SF7BW125 to SF12BW125
799 +)))
586 586  
587 -Or if you have below board, use below connection:
801 +(((
802 +923.1 - SF7BW125 to SF12BW125
803 +)))
588 588  
805 +(((
806 +923.3 - SF7BW125 to SF12BW125
807 +)))
589 589  
590 -[[image:image-20220610172924-5.png]]
809 +(((
810 +
811 +)))
591 591  
813 +(((
814 +(% style="color:blue" %)**Downlink:**
815 +)))
592 592  
593 593  (((
594 -In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS20. LDDS20 will output system info once power on as below:
818 +Uplink channels 1-7(RX1)
595 595  )))
596 596  
821 +(((
822 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
823 +)))
597 597  
598 - [[image:image-20220610172924-6.png||height="601" width="860"]]
599 599  
600 -Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]].
601 601  
827 +=== 2.6.7  IN865-867 (IN865) ===
602 602  
603 -AT+<CMD>?  :  Help on <CMD>
829 +(((
830 +(% style="color:blue" %)**Uplink:**
831 +)))
604 604  
605 -AT+<CMD>  :  Run <CMD>
833 +(((
834 +865.0625 - SF7BW125 to SF12BW125
835 +)))
606 606  
607 -AT+<CMD>=<value>  :  Set the value
837 +(((
838 +865.4025 - SF7BW125 to SF12BW125
839 +)))
608 608  
609 -AT+<CMD>=?  :  Get the value
841 +(((
842 +865.9850 - SF7BW125 to SF12BW125
843 +)))
610 610  
845 +(((
846 +
847 +)))
611 611  
612 -(% style="color:#037691" %)** General Commands :**     
849 +(((
850 +(% style="color:blue" %)**Downlink:**
851 +)))
613 613  
614 -AT                    : Attention       
853 +(((
854 +Uplink channels 1-3 (RX1)
855 +)))
615 615  
616 -AT?                            : Short Help     
857 +(((
858 +866.550 - SF10BW125 (RX2)
859 +)))
617 617  
618 -ATZ                            : MCU Reset    
619 619  
620 -AT+TDC           : Application Data Transmission Interval 
621 621  
863 +== 2.7  LED Indicator ==
622 622  
623 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
865 +The LDDS75 has an internal LED which is to show the status of different state.
624 624  
625 -AT+APPEUI              : Application EUI      
626 626  
627 -AT+APPKEY              : Application Key     
868 +* Blink once when device power on.
869 +* The device detects the sensor and flashes 5 times.
870 +* Solid ON for 5 seconds once device successful Join the network.
871 +* Blink once when device transmit a packet.
628 628  
629 -AT+APPSKEY            : Application Session Key
630 630  
631 -AT+DADDR              : Device Address     
632 632  
633 -AT+DEUI                   : Device EUI     
634 634  
635 -AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
636 636  
637 -AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
877 +== 2.8  ​Firmware Change Log ==
638 638  
639 -AT+CFM          : Confirm Mode       
640 640  
641 -AT+CFS                     : Confirm Status       
880 +(((
881 +**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
882 +)))
642 642  
643 -AT+JOIN          : Join LoRa? Network       
884 +(((
885 +
886 +)))
644 644  
645 -AT+NJM          : LoRa? Network Join Mode    
888 +(((
889 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
890 +)))
646 646  
647 -AT+NJS                     : LoRa? Network Join Status    
648 648  
649 -AT+RECV                  : Print Last Received Data in Raw Format
650 650  
651 -AT+RECVB                : Print Last Received Data in Binary Format      
894 +== 2.9  Mechanical ==
652 652  
653 -AT+SEND                  : Send Text Data      
654 654  
655 -AT+SENB                  : Send Hexadecimal Data
897 +[[image:image-20220610172003-1.png]]
656 656  
657 657  
658 -(% style="color:#037691" %)** LoRa Network Management :**
900 +[[image:image-20220610172003-2.png]]
659 659  
660 -AT+ADR          : Adaptive Rate
661 661  
662 -AT+CLASS                : LoRa Class(Currently only support class A
663 663  
664 -AT+DCS           : Duty Cycle Setting 
904 +== 2.10  Battery Analysis ==
665 665  
666 -AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
906 +=== 2.10.1  Battery Type ===
667 667  
668 -AT+FCD           : Frame Counter Downlink       
908 +The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
669 669  
670 -AT+FCU           : Frame Counter Uplink   
671 671  
672 -AT+JN1DL                : Join Accept Delay1
911 +The battery related documents as below:
673 673  
674 -AT+JN2DL                : Join Accept Delay2
913 +* (((
914 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
915 +)))
916 +* (((
917 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
918 +)))
919 +* (((
920 +[[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]]
921 +)))
675 675  
676 -AT+PNM                   : Public Network Mode   
923 + [[image:image-20220610172400-3.png]]
677 677  
678 -AT+RX1DL                : Receive Delay1      
679 679  
680 -AT+RX2DL                : Receive Delay2      
681 681  
682 -AT+RX2DR               : Rx2 Window Data Rate 
927 +=== 2.10.2  Replace the battery ===
683 683  
684 -AT+RX2FQ               : Rx2 Window Frequency
929 +(((
930 +You can change the battery in the LDDS75.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.
931 +)))
685 685  
686 -AT+TXP           : Transmit Power
933 +(((
934 +
935 +)))
687 687  
937 +(((
938 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 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)
939 +)))
688 688  
689 -(% style="color:#037691" %)** Information :**
690 690  
691 -AT+RSSI           : RSSI of the Last Received Packet   
692 692  
693 -AT+SNR           : SNR of the Last Received Packet   
943 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
694 694  
695 -AT+VER           : Image Version and Frequency Band       
945 +(((
946 +(((
947 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
948 +)))
949 +)))
696 696  
697 -AT+FDR           : Factory Data Reset
951 +* (((
952 +(((
953 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
954 +)))
955 +)))
956 +* (((
957 +(((
958 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
959 +)))
960 +)))
698 698  
699 -AT+PORT                  : Application Port    
962 +(((
963 +(((
964 +
965 +)))
700 700  
701 -AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
967 +(((
968 +There are two kinds of commands to configure LDDS75, they are:
969 +)))
970 +)))
702 702  
703 - AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
972 +* (((
973 +(((
974 +(% style="color:#4f81bd" %)** General Commands**.
975 +)))
976 +)))
704 704  
978 +(((
979 +(((
980 +These commands are to configure:
981 +)))
982 +)))
705 705  
984 +* (((
985 +(((
986 +General system settings like: uplink interval.
987 +)))
988 +)))
989 +* (((
990 +(((
991 +LoRaWAN protocol & radio related command.
992 +)))
993 +)))
706 706  
995 +(((
996 +(((
997 +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]]
998 +)))
999 +)))
1000 +
1001 +(((
1002 +(((
1003 +
1004 +)))
1005 +)))
1006 +
1007 +* (((
1008 +(((
1009 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1010 +)))
1011 +)))
1012 +
1013 +(((
1014 +(((
1015 +These commands only valid for LDDS75, as below:
1016 +)))
1017 +)))
1018 +
1019 +
1020 +
1021 +== 3.1  Access AT Commands ==
1022 +
1023 +LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1024 +
1025 +[[image:image-20220610172924-4.png||height="483" width="988"]]
1026 +
1027 +
1028 +Or if you have below board, use below connection:
1029 +
1030 +
1031 +[[image:image-20220610172924-5.png]]
1032 +
1033 +
1034 +(((
1035 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
1036 +)))
1037 +
1038 +
1039 + [[image:image-20220610172924-6.png||height="601" width="860"]]
1040 +
1041 +
1042 +
707 707  == 3.2  Set Transmit Interval Time ==
708 708  
709 709  Feature: Change LoRaWAN End Node Transmit Interval.
... ... @@ -728,6 +728,7 @@
728 728  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
729 729  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
730 730  )))
1067 +
731 731  )))
732 732  
733 733  
... ... @@ -754,6 +754,10 @@
754 754  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
755 755  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
756 756  
1094 +
1095 +
1096 +
1097 +
757 757  = 4.  FAQ =
758 758  
759 759  == 4.1  What is the frequency plan for LDDS75? ==
... ... @@ -813,6 +813,7 @@
813 813  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
814 814  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
815 815  
1157 +
816 816  = 7. ​ Packing Info =
817 817  
818 818  
... ... @@ -827,6 +827,7 @@
827 827  * Package Size / pcs : cm
828 828  * Weight / pcs : g
829 829  
1172 +
830 830  = 8.  ​Support =
831 831  
832 832  * 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.
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