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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 151.1
edited by Xiaoling
on 2022/06/11 09:25
Change comment: There is no comment for this version
To version 174.10
edited by Xiaoling
on 2022/06/15 10:44
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LDDS75 - LoRaWAN Distance Detection Sensor User Manual
1 +LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual
Content
... ... @@ -1,11 +1,10 @@
1 1  (% style="text-align:center" %)
2 -[[image:1654846127817-788.png]]
2 +[[image:1655254599445-662.png]]
3 3  
4 -**Contents:**
5 5  
6 -{{toc/}}
7 7  
8 8  
7 +**Table of Contents:**
9 9  
10 10  
11 11  
... ... @@ -12,9 +12,11 @@
12 12  
13 13  
14 14  
14 +
15 +
15 15  = 1.  Introduction =
16 16  
17 -== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
18 +== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
18 18  
19 19  (((
20 20  
... ... @@ -21,7 +21,8 @@
21 21  
22 22  (((
23 23  (((
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.
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
25 25  )))
26 26  
27 27  (((
... ... @@ -29,7 +29,7 @@
29 29  )))
30 30  
31 31  (((
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.
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**. 
33 33  )))
34 34  
35 35  (((
... ... @@ -37,7 +37,7 @@
37 37  )))
38 38  
39 39  (((
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.
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.
41 41  )))
42 42  
43 43  (((
... ... @@ -45,7 +45,7 @@
45 45  )))
46 46  
47 47  (((
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*.
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.
49 49  )))
50 50  
51 51  (((
... ... @@ -53,7 +53,7 @@
53 53  )))
54 54  
55 55  (((
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.
58 +LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
57 57  )))
58 58  
59 59  (((
... ... @@ -61,13 +61,24 @@
61 61  )))
62 62  
63 63  (((
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 +(((
64 64  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65 65  )))
66 66  )))
67 67  )))
80 +)))
68 68  
69 69  
70 -[[image:1654847051249-359.png]]
83 +[[image:1655255122126-327.png]]
71 71  
72 72  
73 73  
... ... @@ -75,9 +75,10 @@
75 75  
76 76  * LoRaWAN 1.0.3 Class A
77 77  * Ultra low power consumption
78 -* Distance Detection by Ultrasonic technology
79 -* Flat object range 280mm - 7500mm
80 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
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)
81 81  * Cable Length : 25cm
82 82  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
83 83  * AT Commands to change parameters
... ... @@ -84,68 +84,130 @@
84 84  * Uplink on periodically
85 85  * Downlink to change configure
86 86  * IP66 Waterproof Enclosure
87 -* 4000mAh or 8500mAh Battery for long term use
101 +* 8500mAh Battery for long term use
88 88  
89 -== 1.3  Specification ==
103 +== 1.3  Suitable Container & Liquid ==
90 90  
91 -=== 1.3.1  Rated environmental conditions ===
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.
92 92  
93 -[[image:image-20220610154839-1.png]]
112 +== 1.4  Mechanical ==
94 94  
95 -(((
96 -**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)**
97 -)))
114 +[[image:image-20220615090910-1.png]]
98 98  
99 99  
117 +[[image:image-20220615090910-2.png]]
100 100  
101 -=== 1.3.2  Effective measurement range Reference beam pattern ===
102 102  
103 -**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
104 104  
121 +== 1.5  Install LDDS20 ==
105 105  
106 106  
107 -[[image:1654852253176-749.png]]
124 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
108 108  
126 +LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
109 109  
128 +[[image:image-20220615091045-3.png]]
110 110  
111 -(((
112 -**(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.**
113 -)))
114 114  
115 115  
116 -[[image:1654852175653-550.png]](% style="display:none" %) ** **
132 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
117 117  
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.
118 118  
136 +[[image:image-20220615092010-11.png]]
119 119  
120 -== 1.5 ​ Applications ==
121 121  
122 -* Horizontal distance measurement
123 -* Liquid level measurement
124 -* Parking management system
125 -* Object proximity and presence detection
126 -* Intelligent trash can management system
127 -* Robot obstacle avoidance
128 -* Automatic control
129 -* Sewer
130 -* Bottom water level monitoring
139 +No polish needed if the container is shine metal surface without paint or non-metal container.
131 131  
132 -== 1.6  Pin mapping and power on ==
141 +[[image:image-20220615092044-12.png]]
133 133  
134 134  
135 -[[image:1654847583902-256.png]]
136 136  
145 +(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
137 137  
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.
138 138  
139 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
140 140  
150 +It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
151 +
152 +[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
153 +
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 +
157 +
158 +(% style="color:red" %)**LED Status:**
159 +
160 +* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
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.
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 +
141 141  == 2.1  How it works ==
142 142  
143 143  (((
144 -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
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.
145 145  )))
146 146  
147 147  (((
148 -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.
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.
149 149  )))
150 150  
151 151  
... ... @@ -157,7 +157,7 @@
157 157  )))
158 158  
159 159  (((
160 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
161 161  )))
162 162  
163 163  (((
... ... @@ -165,11 +165,13 @@
165 165  )))
166 166  
167 167  (((
168 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
244 +
245 +
246 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
169 169  )))
170 170  
171 171  (((
172 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
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.
173 173  )))
174 174  
175 175  [[image:image-20220607170145-1.jpeg]]
... ... @@ -184,6 +184,8 @@
184 184  )))
185 185  
186 186  (((
265 +
266 +
187 187  **Add APP EUI in the application**
188 188  )))
189 189  
... ... @@ -197,6 +197,7 @@
197 197  [[image:image-20220610161353-7.png]]
198 198  
199 199  
280 +
200 200  You can also choose to create the device manually.
201 201  
202 202   [[image:image-20220610161538-8.png]]
... ... @@ -209,16 +209,17 @@
209 209  
210 210  
211 211  
212 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
213 213  
214 214  
215 215  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
216 216  
217 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
218 218  
219 219  
301 +
220 220  (((
221 -(% 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.
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.
222 222  )))
223 223  
224 224  [[image:1654849068701-275.png]]
... ... @@ -229,12 +229,10 @@
229 229  
230 230  (((
231 231  (((
232 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
233 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
234 234  
235 -(((
236 -Uplink payload includes in total 4 bytes.
237 -Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
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).
238 238  )))
239 239  )))
240 240  
... ... @@ -261,7 +261,7 @@
261 261  === 2.3.1  Battery Info ===
262 262  
263 263  
264 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
265 265  
266 266  Ex1: 0x0B45 = 2885mV
267 267  
... ... @@ -272,20 +272,21 @@
272 272  === 2.3.2  Distance ===
273 273  
274 274  (((
275 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
276 276  )))
277 277  
278 278  (((
279 -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.**
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.**
280 280  )))
281 281  
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.
282 282  
283 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
284 -* 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.
285 285  
366 +
286 286  === 2.3.3  Interrupt Pin ===
287 287  
288 -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 +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.
289 289  
290 290  **Example:**
291 291  
... ... @@ -331,700 +331,300 @@
331 331  The payload decoder function for TTN V3 is here:
332 332  
333 333  (((
334 -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 +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/]]
335 335  )))
336 336  
337 337  
338 338  
339 -== 2.4  Uplink Interval ==
420 +== 2.4  Downlink Payload ==
340 340  
341 -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 +By default, LDDS20 prints the downlink payload to console port.
342 342  
424 +[[image:image-20220615100930-15.png]]
343 343  
344 344  
345 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**Examples:**
346 346  
347 -(((
348 -[[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:
349 -)))
350 350  
351 -(((
352 -
353 -)))
430 +* (% style="color:blue" %)**Set TDC**
354 354  
355 -(((
356 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
357 -)))
432 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
358 358  
359 -(((
360 -(% 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:**
361 -)))
434 +Payload:    01 00 00 1E    TDC=30S
362 362  
436 +Payload:    01 00 00 3C    TDC=60S
363 363  
364 -[[image:1654592790040-760.png]]
365 365  
439 +* (% style="color:blue" %)**Reset**
366 366  
367 -[[image:1654592800389-571.png]]
441 +If payload = 0x04FF, it will reset the LDDS20
368 368  
369 369  
370 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 +* (% style="color:blue" %)**CFM**
371 371  
372 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
446 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
373 373  
374 -[[image:1654851029373-510.png]]
375 375  
376 376  
377 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
450 +== 2.5  ​Show Data in DataCake IoT Server ==
378 378  
379 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
380 -
381 -
382 -
383 -== 2.6  Frequency Plans ==
384 -
385 385  (((
386 -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 +[[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:
387 387  )))
388 388  
389 -
390 -
391 -=== 2.6.1  EU863-870 (EU868) ===
392 -
393 393  (((
394 -(% style="color:blue" %)**Uplink:**
395 -)))
396 -
397 -(((
398 -868.1 - SF7BW125 to SF12BW125
399 -)))
400 -
401 -(((
402 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
403 -)))
404 -
405 -(((
406 -868.5 - SF7BW125 to SF12BW125
407 -)))
408 -
409 -(((
410 -867.1 - SF7BW125 to SF12BW125
411 -)))
412 -
413 -(((
414 -867.3 - SF7BW125 to SF12BW125
415 -)))
416 -
417 -(((
418 -867.5 - SF7BW125 to SF12BW125
419 -)))
420 -
421 -(((
422 -867.7 - SF7BW125 to SF12BW125
423 -)))
424 -
425 -(((
426 -867.9 - SF7BW125 to SF12BW125
427 -)))
428 -
429 -(((
430 -868.8 - FSK
431 -)))
432 -
433 -(((
434 434  
435 435  )))
436 436  
437 437  (((
438 -(% style="color:blue" %)**Downlink:**
461 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
439 439  )))
440 440  
441 441  (((
442 -Uplink channels 1-9 (RX1)
465 +(% 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:**
443 443  )))
444 444  
445 -(((
446 -869.525 - SF9BW125 (RX2 downlink only)
447 -)))
448 448  
469 +[[image:1654592790040-760.png]]
449 449  
450 450  
451 -=== 2.6.2  US902-928(US915) ===
472 +[[image:1654592800389-571.png]]
452 452  
453 -(((
454 -Used in USA, Canada and South America. Default use CHE=2
455 455  
456 -(% style="color:blue" %)**Uplink:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
457 457  
458 -903.9 - SF7BW125 to SF10BW125
477 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
459 459  
460 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
461 461  
462 -904.3 - SF7BW125 to SF10BW125
463 463  
464 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
465 465  
466 -904.7 - SF7BW125 to SF10BW125
484 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
467 467  
468 -904.9 - SF7BW125 to SF10BW125
469 469  
470 -905.1 - SF7BW125 to SF10BW125
471 471  
472 -905.3 - SF7BW125 to SF10BW125
488 +== 2.6  LED Indicator ==
473 473  
490 +The LDDS20 has an internal LED which is to show the status of different state.
474 474  
475 -(% style="color:blue" %)**Downlink:**
476 476  
477 -923.3 - SF7BW500 to SF12BW500
493 +* Blink once when device power on.
494 +* The device detects the sensor and flashes 5 times.
495 +* Solid ON for 5 seconds once device successful Join the network.
496 +* Blink once when device transmit a packet.
478 478  
479 -923.9 - SF7BW500 to SF12BW500
480 480  
481 -924.5 - SF7BW500 to SF12BW500
482 482  
483 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
484 484  
485 -925.7 - SF7BW500 to SF12BW500
486 486  
487 -926.3 - SF7BW500 to SF12BW500
488 -
489 -926.9 - SF7BW500 to SF12BW500
490 -
491 -927.5 - SF7BW500 to SF12BW500
492 -
493 -923.3 - SF12BW500(RX2 downlink only)
494 -
495 -
496 -
497 -)))
498 -
499 -=== 2.6.3  CN470-510 (CN470) ===
500 -
501 501  (((
502 -Used in China, Default use CHE=1
504 +**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/]]
503 503  )))
504 504  
505 505  (((
506 -(% style="color:blue" %)**Uplink:**
507 -)))
508 -
509 -(((
510 -486.3 - SF7BW125 to SF12BW125
511 -)))
512 -
513 -(((
514 -486.5 - SF7BW125 to SF12BW125
515 -)))
516 -
517 -(((
518 -486.7 - SF7BW125 to SF12BW125
519 -)))
520 -
521 -(((
522 -486.9 - SF7BW125 to SF12BW125
523 -)))
524 -
525 -(((
526 -487.1 - SF7BW125 to SF12BW125
527 -)))
528 -
529 -(((
530 -487.3 - SF7BW125 to SF12BW125
531 -)))
532 -
533 -(((
534 -487.5 - SF7BW125 to SF12BW125
535 -)))
536 -
537 -(((
538 -487.7 - SF7BW125 to SF12BW125
539 -)))
540 -
541 -(((
542 542  
543 543  )))
544 544  
545 545  (((
546 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
547 547  )))
548 548  
549 -(((
550 -506.7 - SF7BW125 to SF12BW125
551 -)))
552 552  
553 -(((
554 -506.9 - SF7BW125 to SF12BW125
555 -)))
556 556  
557 -(((
558 -507.1 - SF7BW125 to SF12BW125
559 -)))
517 +== 2.8  Battery Analysis ==
560 560  
561 -(((
562 -507.3 - SF7BW125 to SF12BW125
563 -)))
564 564  
565 -(((
566 -507.5 - SF7BW125 to SF12BW125
567 -)))
568 568  
569 -(((
570 -507.7 - SF7BW125 to SF12BW125
571 -)))
572 572  
573 -(((
574 -507.9 - SF7BW125 to SF12BW125
575 -)))
522 +=== 2.8.1  Battery Type ===
576 576  
577 -(((
578 -508.1 - SF7BW125 to SF12BW125
579 -)))
524 +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.
580 580  
581 -(((
582 -505.3 - SF12BW125 (RX2 downlink only)
583 -)))
584 584  
527 +The battery related documents as below:
585 585  
586 -
587 -=== 2.6.4  AU915-928(AU915) ===
588 -
589 -(((
590 -Default use CHE=2
591 -
592 -(% style="color:blue" %)**Uplink:**
593 -
594 -916.8 - SF7BW125 to SF12BW125
595 -
596 -917.0 - SF7BW125 to SF12BW125
597 -
598 -917.2 - SF7BW125 to SF12BW125
599 -
600 -917.4 - SF7BW125 to SF12BW125
601 -
602 -917.6 - SF7BW125 to SF12BW125
603 -
604 -917.8 - SF7BW125 to SF12BW125
605 -
606 -918.0 - SF7BW125 to SF12BW125
607 -
608 -918.2 - SF7BW125 to SF12BW125
609 -
610 -
611 -(% style="color:blue" %)**Downlink:**
612 -
613 -923.3 - SF7BW500 to SF12BW500
614 -
615 -923.9 - SF7BW500 to SF12BW500
616 -
617 -924.5 - SF7BW500 to SF12BW500
618 -
619 -925.1 - SF7BW500 to SF12BW500
620 -
621 -925.7 - SF7BW500 to SF12BW500
622 -
623 -926.3 - SF7BW500 to SF12BW500
624 -
625 -926.9 - SF7BW500 to SF12BW500
626 -
627 -927.5 - SF7BW500 to SF12BW500
628 -
629 -923.3 - SF12BW500(RX2 downlink only)
630 -
631 -
632 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
633 633  )))
634 -
635 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
636 -
637 -(((
638 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
639 639  )))
640 -
641 -(((
642 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
643 643  )))
644 644  
645 -(((
646 -923.4 - SF7BW125 to SF10BW125
647 -)))
539 + [[image:image-20220615102527-16.png]]
648 648  
649 -(((
650 -
651 -)))
652 652  
653 -(((
654 -(% style="color:blue" %)**Additional Uplink Channel**:
655 -)))
656 656  
657 -(((
658 -(OTAA mode, channel added by JoinAccept message)
659 -)))
543 +== 2.8.2  Battery Note ==
660 660  
661 -(((
662 -
663 -)))
545 +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.
664 664  
665 -(((
666 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
667 -)))
668 668  
669 -(((
670 -922.2 - SF7BW125 to SF10BW125
671 -)))
672 672  
673 -(((
674 -922.4 - SF7BW125 to SF10BW125
675 -)))
549 +=== 2.8.3  Replace the battery ===
676 676  
677 677  (((
678 -922.6 - SF7BW125 to SF10BW125
552 +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.
679 679  )))
680 680  
681 681  (((
682 -922.8 - SF7BW125 to SF10BW125
683 -)))
684 -
685 -(((
686 -923.0 - SF7BW125 to SF10BW125
687 -)))
688 -
689 -(((
690 -922.0 - SF7BW125 to SF10BW125
691 -)))
692 -
693 -(((
694 694  
695 695  )))
696 696  
697 697  (((
698 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
560 +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)
699 699  )))
700 700  
701 -(((
702 -923.6 - SF7BW125 to SF10BW125
703 -)))
704 704  
705 -(((
706 -923.8 - SF7BW125 to SF10BW125
707 -)))
708 708  
709 -(((
710 -924.0 - SF7BW125 to SF10BW125
711 -)))
565 +== 2.8.4  Battery Life Analyze ==
712 712  
713 -(((
714 -924.2 - SF7BW125 to SF10BW125
715 -)))
567 +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:
716 716  
717 -(((
718 -924.4 - SF7BW125 to SF10BW125
719 -)))
569 +[[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]]
720 720  
721 -(((
722 -924.6 - SF7BW125 to SF10BW125
723 -)))
724 724  
725 -(((
726 -
727 -)))
728 728  
729 -(((
730 -(% style="color:blue" %)**Downlink:**
731 -)))
573 += 3.  Using the AT Commands =
732 732  
733 733  (((
734 -Uplink channels 1-8 (RX1)
735 -)))
736 -
737 737  (((
738 -923.2 - SF10BW125 (RX2)
739 -)))
740 -
741 -
742 -
743 -=== 2.6.6  KR920-923 (KR920) ===
744 -
745 -(((
746 -(% style="color:blue" %)**Default channel:**
747 -)))
748 -
749 -(((
750 -922.1 - SF7BW125 to SF12BW125
751 -)))
752 -
753 -(((
754 -922.3 - SF7BW125 to SF12BW125
755 -)))
756 -
757 -(((
758 -922.5 - SF7BW125 to SF12BW125
759 -)))
760 -
761 -(((
762 762  
763 763  )))
764 -
765 -(((
766 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
767 767  )))
768 768  
769 -(((
770 -922.1 - SF7BW125 to SF12BW125
771 -)))
581 +== 3.1  Access AT Commands ==
772 772  
773 -(((
774 -922.3 - SF7BW125 to SF12BW125
775 -)))
583 +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.
776 776  
777 -(((
778 -922.5 - SF7BW125 to SF12BW125
779 -)))
780 780  
781 -(((
782 -922.7 - SF7BW125 to SF12BW125
783 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
784 784  
785 -(((
786 -922.9 - SF7BW125 to SF12BW125
787 -)))
788 788  
789 -(((
790 -923.1 - SF7BW125 to SF12BW125
791 -)))
589 +Or if you have below board, use below connection:
792 792  
793 -(((
794 -923.3 - SF7BW125 to SF12BW125
795 -)))
796 796  
797 -(((
798 -
799 -)))
592 +[[image:image-20220610172924-5.png]]
800 800  
801 -(((
802 -(% style="color:blue" %)**Downlink:**
803 -)))
804 804  
805 805  (((
806 -Uplink channels 1-7(RX1)
596 +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:
807 807  )))
808 808  
809 -(((
810 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
811 -)))
812 812  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
813 813  
602 +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/]].
814 814  
815 -=== 2.6.7  IN865-867 (IN865) ===
816 816  
817 -(((
818 -(% style="color:blue" %)**Uplink:**
819 -)))
605 +AT+<CMD>?  :  Help on <CMD>
820 820  
821 -(((
822 -865.0625 - SF7BW125 to SF12BW125
823 -)))
607 +AT+<CMD>  :  Run <CMD>
824 824  
825 -(((
826 -865.4025 - SF7BW125 to SF12BW125
827 -)))
609 +AT+<CMD>=<value>  :  Set the value
828 828  
829 -(((
830 -865.9850 - SF7BW125 to SF12BW125
831 -)))
611 +AT+<CMD>=?  :  Get the value
832 832  
833 -(((
834 -
835 -)))
836 836  
837 -(((
838 -(% style="color:blue" %)**Downlink:**
839 -)))
614 +**General Commands** : 
840 840  
841 -(((
842 -Uplink channels 1-3 (RX1)
843 -)))
616 +AT                    : Attention       
844 844  
845 -(((
846 -866.550 - SF10BW125 (RX2)
847 -)))
618 +AT?                            : Short Help     
848 848  
620 +ATZ                            : MCU Reset    
849 849  
622 +AT+TDC           : Application Data Transmission Interval 
850 850  
851 -== 2.7  LED Indicator ==
852 852  
853 -The LDDS75 has an internal LED which is to show the status of different state.
625 +**Keys, IDs and EUIs management:**
854 854  
627 +AT+APPEUI              : Application EUI      
855 855  
856 -* Blink once when device power on.
857 -* The device detects the sensor and flashes 5 times.
858 -* Solid ON for 5 seconds once device successful Join the network.
859 -* Blink once when device transmit a packet.
629 +AT+APPKEY              : Application Key     
860 860  
631 +AT+APPSKEY            : Application Session Key
861 861  
862 -== 2.8  ​Firmware Change Log ==
633 +AT+DADDR              : Device Address     
863 863  
635 +AT+DEUI                   : Device EUI     
864 864  
865 -(((
866 -**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/]]
867 -)))
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
868 868  
869 -(((
870 -
871 -)))
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
872 872  
873 -(((
874 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
875 -)))
641 +AT+CFM          : Confirm Mode       
876 876  
643 +AT+CFS                     : Confirm Status       
877 877  
645 +AT+JOIN          : Join LoRa? Network       
878 878  
879 -== 2.9  Mechanical ==
647 +AT+NJM          : LoRa? Network Join Mode    
880 880  
649 +AT+NJS                     : LoRa? Network Join Status    
881 881  
882 -[[image:image-20220610172003-1.png]]
651 +AT+RECV                  : Print Last Received Data in Raw Format
883 883  
653 +AT+RECVB                : Print Last Received Data in Binary Format      
884 884  
885 -[[image:image-20220610172003-2.png]]
655 +AT+SEND                  : Send Text Data      
886 886  
657 +AT+SENB                  : Send Hexadecimal Data
887 887  
888 888  
889 -== 2.10  Battery Analysis ==
660 +**LoRa Network Management :**
890 890  
891 -=== 2.10.1  Battery Type ===
662 +AT+ADR          : Adaptive Rate
892 892  
893 -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.
664 +AT+CLASS                : LoRa Class(Currently only support class A
894 894  
666 +AT+DCS           : Duty Cycle Setting 
895 895  
896 -The battery related documents as below:
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
897 897  
898 -* (((
899 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
900 -)))
901 -* (((
902 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
903 -)))
904 -* (((
905 -[[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]]
906 -)))
670 +AT+FCD           : Frame Counter Downlink       
907 907  
908 - [[image:image-20220610172400-3.png]]
672 +AT+FCU           : Frame Counter Uplink   
909 909  
674 +AT+JN1DL                : Join Accept Delay1
910 910  
676 +AT+JN2DL                : Join Accept Delay2
911 911  
912 -=== 2.10.2  Replace the battery ===
678 +AT+PNM                   : Public Network Mode   
913 913  
914 -(((
915 -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.
916 -)))
680 +AT+RX1DL                : Receive Delay1      
917 917  
918 -(((
919 -
920 -)))
682 +AT+RX2DL                : Receive Delay2      
921 921  
922 -(((
923 -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)
924 -)))
684 +AT+RX2DR               : Rx2 Window Data Rate 
925 925  
686 +AT+RX2FQ               : Rx2 Window Frequency
926 926  
688 +AT+TXP           : Transmit Power
927 927  
928 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
929 929  
930 -(((
931 -(((
932 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
933 -)))
934 -)))
691 +**Information :**
935 935  
936 -* (((
937 -(((
938 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
939 -)))
940 -)))
941 -* (((
942 -(((
943 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
944 -)))
945 -)))
693 +AT+RSSI           : RSSI of the Last Received Packet   
946 946  
947 -(((
948 -(((
949 -
950 -)))
695 +AT+SNR           : SNR of the Last Received Packet   
951 951  
952 -(((
953 -There are two kinds of commands to configure LDDS75, they are:
954 -)))
955 -)))
697 +AT+VER           : Image Version and Frequency Band       
956 956  
957 -* (((
958 -(((
959 -(% style="color:#4f81bd" %)** General Commands**.
960 -)))
961 -)))
699 +AT+FDR           : Factory Data Reset
962 962  
963 -(((
964 -(((
965 -These commands are to configure:
966 -)))
967 -)))
701 +AT+PORT                  : Application Port    
968 968  
969 -* (((
970 -(((
971 -General system settings like: uplink interval.
972 -)))
973 -)))
974 -* (((
975 -(((
976 -LoRaWAN protocol & radio related command.
977 -)))
978 -)))
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
979 979  
980 -(((
981 -(((
982 -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]]
983 -)))
984 -)))
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
985 985  
986 -(((
987 -(((
988 -
989 -)))
990 -)))
991 991  
992 -* (((
993 -(((
994 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
995 -)))
996 -)))
997 997  
998 -(((
999 -(((
1000 -These commands only valid for LDDS75, as below:
1001 -)))
1002 -)))
1003 -
1004 -
1005 -
1006 -== 3.1  Access AT Commands ==
1007 -
1008 -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.
1009 -
1010 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1011 -
1012 -
1013 -Or if you have below board, use below connection:
1014 -
1015 -
1016 -[[image:image-20220610172924-5.png]]
1017 -
1018 -
1019 -(((
1020 -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:
1021 -)))
1022 -
1023 -
1024 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1025 -
1026 -
1027 -
1028 1028  == 3.2  Set Transmit Interval Time ==
1029 1029  
1030 1030  Feature: Change LoRaWAN End Node Transmit Interval.
... ... @@ -1049,11 +1049,12 @@
1049 1049  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1050 1050  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1051 1051  )))
733 +)))
1052 1052  
1053 1053  
1054 -
1055 -)))
1056 1056  
737 +
738 +
1057 1057  == 3.3  Set Interrupt Mode ==
1058 1058  
1059 1059  Feature, Set Interrupt mode for GPIO_EXIT.
... ... @@ -1074,8 +1074,6 @@
1074 1074  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1075 1075  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1076 1076  
1077 -
1078 -
1079 1079  = 4.  FAQ =
1080 1080  
1081 1081  == 4.1  What is the frequency plan for LDDS75? ==
... ... @@ -1135,8 +1135,6 @@
1135 1135  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1136 1136  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1137 1137  
1138 -
1139 -
1140 1140  = 7. ​ Packing Info =
1141 1141  
1142 1142  
... ... @@ -1151,8 +1151,6 @@
1151 1151  * Package Size / pcs : cm
1152 1152  * Weight / pcs : g
1153 1153  
1154 -
1155 -
1156 1156  = 8.  ​Support =
1157 1157  
1158 1158  * 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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