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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 152.2
edited by Xiaoling
on 2022/06/14 17:17
Change comment: There is no comment for this version
To version 173.5
edited by Xiaoling
on 2022/06/15 10:15
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
... ... @@ -1,13 +1,11 @@
1 1  (% style="text-align:center" %)
2 -[[image:1654846127817-788.png]]
2 +[[image:1655254599445-662.png]]
3 3  
4 4  
5 5  
6 6  
7 -
8 8  **Table of Contents:**
9 9  
10 -{{toc/}}
11 11  
12 12  
13 13  
... ... @@ -15,10 +15,9 @@
15 15  
16 16  
17 17  
18 -
19 19  = 1.  Introduction =
20 20  
21 -== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
18 +== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
22 22  
23 23  (((
24 24  
... ... @@ -25,7 +25,8 @@
25 25  
26 26  (((
27 27  (((
28 -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
29 29  )))
30 30  
31 31  (((
... ... @@ -33,7 +33,7 @@
33 33  )))
34 34  
35 35  (((
36 -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**. 
37 37  )))
38 38  
39 39  (((
... ... @@ -41,7 +41,7 @@
41 41  )))
42 42  
43 43  (((
44 -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.
45 45  )))
46 46  
47 47  (((
... ... @@ -49,7 +49,7 @@
49 49  )))
50 50  
51 51  (((
52 -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.
53 53  )))
54 54  
55 55  (((
... ... @@ -57,7 +57,7 @@
57 57  )))
58 58  
59 59  (((
60 -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*.
61 61  )))
62 62  
63 63  (((
... ... @@ -65,13 +65,24 @@
65 65  )))
66 66  
67 67  (((
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 +(((
68 68  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
69 69  )))
70 70  )))
71 71  )))
80 +)))
72 72  
73 73  
74 -[[image:1654847051249-359.png]]
83 +[[image:1655255122126-327.png]]
75 75  
76 76  
77 77  
... ... @@ -79,9 +79,10 @@
79 79  
80 80  * LoRaWAN 1.0.3 Class A
81 81  * Ultra low power consumption
82 -* Distance Detection by Ultrasonic technology
83 -* Flat object range 280mm - 7500mm
84 -* 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)
85 85  * Cable Length : 25cm
86 86  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
87 87  * AT Commands to change parameters
... ... @@ -88,72 +88,130 @@
88 88  * Uplink on periodically
89 89  * Downlink to change configure
90 90  * IP66 Waterproof Enclosure
91 -* 4000mAh or 8500mAh Battery for long term use
101 +* 8500mAh Battery for long term use
92 92  
103 +== 1.3  Suitable Container & Liquid ==
93 93  
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.
94 94  
95 -== 1.3  Specification ==
112 +== 1.4  Mechanical ==
96 96  
97 -=== 1.3.1  Rated environmental conditions ===
114 +[[image:image-20220615090910-1.png]]
98 98  
99 -[[image:image-20220610154839-1.png]]
100 100  
101 -(((
102 -**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)**
103 -)))
117 +[[image:image-20220615090910-2.png]]
104 104  
105 105  
106 106  
107 -=== 1.3.2  Effective measurement range Reference beam pattern ===
121 +== 1.5  Install LDDS20 ==
108 108  
109 -**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
110 110  
124 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
111 111  
126 +LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
112 112  
113 -[[image:1654852253176-749.png]]
128 +[[image:image-20220615091045-3.png]]
114 114  
115 115  
116 116  
117 -(((
118 -**(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.**
119 -)))
132 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
120 120  
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.
121 121  
122 -[[image:1654852175653-550.png]](% style="display:none" %) ** **
136 +[[image:image-20220615092010-11.png]]
123 123  
124 124  
139 +No polish needed if the container is shine metal surface without paint or non-metal container.
125 125  
126 -== 1.5 ​ Applications ==
141 +[[image:image-20220615092044-12.png]]
127 127  
128 -* Horizontal distance measurement
129 -* Liquid level measurement
130 -* Parking management system
131 -* Object proximity and presence detection
132 -* Intelligent trash can management system
133 -* Robot obstacle avoidance
134 -* Automatic control
135 -* Sewer
136 -* Bottom water level monitoring
137 137  
138 138  
145 +(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
139 139  
140 -== 1.6  Pin mapping and power on ==
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.
141 141  
142 142  
143 -[[image:1654847583902-256.png]]
150 +It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
144 144  
152 +[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
145 145  
146 146  
147 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
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.
148 148  
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 +
149 149  == 2.1  How it works ==
150 150  
151 151  (((
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
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.
153 153  )))
154 154  
155 155  (((
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.
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.
157 157  )))
158 158  
159 159  
... ... @@ -165,7 +165,7 @@
165 165  )))
166 166  
167 167  (((
168 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
169 169  )))
170 170  
171 171  (((
... ... @@ -173,11 +173,13 @@
173 173  )))
174 174  
175 175  (((
176 -(% 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.
177 177  )))
178 178  
179 179  (((
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.
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.
181 181  )))
182 182  
183 183  [[image:image-20220607170145-1.jpeg]]
... ... @@ -192,6 +192,8 @@
192 192  )))
193 193  
194 194  (((
265 +
266 +
195 195  **Add APP EUI in the application**
196 196  )))
197 197  
... ... @@ -205,6 +205,7 @@
205 205  [[image:image-20220610161353-7.png]]
206 206  
207 207  
280 +
208 208  You can also choose to create the device manually.
209 209  
210 210   [[image:image-20220610161538-8.png]]
... ... @@ -217,16 +217,17 @@
217 217  
218 218  
219 219  
220 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
221 221  
222 222  
223 223  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
224 224  
225 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
226 226  
227 227  
301 +
228 228  (((
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.
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.
230 230  )))
231 231  
232 232  [[image:1654849068701-275.png]]
... ... @@ -237,12 +237,10 @@
237 237  
238 238  (((
239 239  (((
240 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
241 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
242 242  
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
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).
246 246  )))
247 247  )))
248 248  
... ... @@ -269,7 +269,7 @@
269 269  === 2.3.1  Battery Info ===
270 270  
271 271  
272 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
273 273  
274 274  Ex1: 0x0B45 = 2885mV
275 275  
... ... @@ -280,22 +280,19 @@
280 280  === 2.3.2  Distance ===
281 281  
282 282  (((
283 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
284 284  )))
285 285  
286 286  (((
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.**
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.**
288 288  )))
289 289  
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.
290 290  
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.
293 -
294 -
295 -
296 296  === 2.3.3  Interrupt Pin ===
297 297  
298 -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.
367 +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.
299 299  
300 300  **Example:**
301 301  
... ... @@ -341,535 +341,92 @@
341 341  The payload decoder function for TTN V3 is here:
342 342  
343 343  (((
344 -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/]]
413 +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/]]
345 345  )))
346 346  
347 347  
348 348  
349 -== 2.4  Uplink Interval ==
418 +== 2.4  Downlink Payload ==
350 350  
351 -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"]]
420 +By default, LDDS20 prints the downlink payload to console port.
352 352  
422 +[[image:image-20220615100930-15.png]]
353 353  
354 354  
355 -== 2.5  ​Show Data in DataCake IoT Server ==
425 +**Examples:**
356 356  
357 -(((
358 -[[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:
359 -)))
360 360  
361 -(((
362 -
363 -)))
428 +* (% style="color:blue" %)**Set TDC**
364 364  
365 -(((
366 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
367 -)))
430 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
368 368  
369 -(((
370 -(% 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:**
371 -)))
432 +Payload:    01 00 00 1E    TDC=30S
372 372  
434 +Payload:    01 00 00 3C    TDC=60S
373 373  
374 -[[image:1654592790040-760.png]]
375 375  
437 +* (% style="color:blue" %)**Reset**
376 376  
377 -[[image:1654592800389-571.png]]
439 +If payload = 0x04FF, it will reset the LDDS20
378 378  
379 379  
380 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
442 +* (% style="color:blue" %)**CFM**
381 381  
382 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
444 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
383 383  
384 -[[image:1654851029373-510.png]]
385 385  
386 386  
387 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
448 +== 2.5  ​Show Data in DataCake IoT Server ==
388 388  
389 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
390 -
391 -
392 -
393 -== 2.6  Frequency Plans ==
394 -
395 395  (((
396 -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.
451 +[[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:
397 397  )))
398 398  
399 -
400 -
401 -=== 2.6.1  EU863-870 (EU868) ===
402 -
403 403  (((
404 -(% style="color:blue" %)**Uplink:**
405 -)))
406 -
407 -(((
408 -868.1 - SF7BW125 to SF12BW125
409 -)))
410 -
411 -(((
412 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
413 -)))
414 -
415 -(((
416 -868.5 - SF7BW125 to SF12BW125
417 -)))
418 -
419 -(((
420 -867.1 - SF7BW125 to SF12BW125
421 -)))
422 -
423 -(((
424 -867.3 - SF7BW125 to SF12BW125
425 -)))
426 -
427 -(((
428 -867.5 - SF7BW125 to SF12BW125
429 -)))
430 -
431 -(((
432 -867.7 - SF7BW125 to SF12BW125
433 -)))
434 -
435 -(((
436 -867.9 - SF7BW125 to SF12BW125
437 -)))
438 -
439 -(((
440 -868.8 - FSK
441 -)))
442 -
443 -(((
444 444  
445 445  )))
446 446  
447 447  (((
448 -(% style="color:blue" %)**Downlink:**
459 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
449 449  )))
450 450  
451 451  (((
452 -Uplink channels 1-9 (RX1)
463 +(% 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:**
453 453  )))
454 454  
455 -(((
456 -869.525 - SF9BW125 (RX2 downlink only)
457 -)))
458 458  
467 +[[image:1654592790040-760.png]]
459 459  
460 460  
461 -=== 2.6.2  US902-928(US915) ===
470 +[[image:1654592800389-571.png]]
462 462  
463 -(((
464 -Used in USA, Canada and South America. Default use CHE=2
465 465  
466 -(% style="color:blue" %)**Uplink:**
473 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
467 467  
468 -903.9 - SF7BW125 to SF10BW125
475 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
469 469  
470 -904.1 - SF7BW125 to SF10BW125
477 +[[image:1654851029373-510.png]]
471 471  
472 -904.3 - SF7BW125 to SF10BW125
473 473  
474 -904.5 - SF7BW125 to SF10BW125
480 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
475 475  
476 -904.7 - SF7BW125 to SF10BW125
482 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
477 477  
478 -904.9 - SF7BW125 to SF10BW125
479 479  
480 -905.1 - SF7BW125 to SF10BW125
481 481  
482 -905.3 - SF7BW125 to SF10BW125
486 +== 2.6  LED Indicator ==
483 483  
488 +The LDDS20 has an internal LED which is to show the status of different state.
484 484  
485 -(% style="color:blue" %)**Downlink:**
486 486  
487 -923.3 - SF7BW500 to SF12BW500
488 -
489 -923.9 - SF7BW500 to SF12BW500
490 -
491 -924.5 - SF7BW500 to SF12BW500
492 -
493 -925.1 - SF7BW500 to SF12BW500
494 -
495 -925.7 - SF7BW500 to SF12BW500
496 -
497 -926.3 - SF7BW500 to SF12BW500
498 -
499 -926.9 - SF7BW500 to SF12BW500
500 -
501 -927.5 - SF7BW500 to SF12BW500
502 -
503 -923.3 - SF12BW500(RX2 downlink only)
504 -
505 -
506 -
507 -)))
508 -
509 -=== 2.6.3  CN470-510 (CN470) ===
510 -
511 -(((
512 -Used in China, Default use CHE=1
513 -)))
514 -
515 -(((
516 -(% style="color:blue" %)**Uplink:**
517 -)))
518 -
519 -(((
520 -486.3 - SF7BW125 to SF12BW125
521 -)))
522 -
523 -(((
524 -486.5 - SF7BW125 to SF12BW125
525 -)))
526 -
527 -(((
528 -486.7 - SF7BW125 to SF12BW125
529 -)))
530 -
531 -(((
532 -486.9 - SF7BW125 to SF12BW125
533 -)))
534 -
535 -(((
536 -487.1 - SF7BW125 to SF12BW125
537 -)))
538 -
539 -(((
540 -487.3 - SF7BW125 to SF12BW125
541 -)))
542 -
543 -(((
544 -487.5 - SF7BW125 to SF12BW125
545 -)))
546 -
547 -(((
548 -487.7 - SF7BW125 to SF12BW125
549 -)))
550 -
551 -(((
552 -
553 -)))
554 -
555 -(((
556 -(% style="color:blue" %)**Downlink:**
557 -)))
558 -
559 -(((
560 -506.7 - SF7BW125 to SF12BW125
561 -)))
562 -
563 -(((
564 -506.9 - SF7BW125 to SF12BW125
565 -)))
566 -
567 -(((
568 -507.1 - SF7BW125 to SF12BW125
569 -)))
570 -
571 -(((
572 -507.3 - SF7BW125 to SF12BW125
573 -)))
574 -
575 -(((
576 -507.5 - SF7BW125 to SF12BW125
577 -)))
578 -
579 -(((
580 -507.7 - SF7BW125 to SF12BW125
581 -)))
582 -
583 -(((
584 -507.9 - SF7BW125 to SF12BW125
585 -)))
586 -
587 -(((
588 -508.1 - SF7BW125 to SF12BW125
589 -)))
590 -
591 -(((
592 -505.3 - SF12BW125 (RX2 downlink only)
593 -)))
594 -
595 -
596 -
597 -=== 2.6.4  AU915-928(AU915) ===
598 -
599 -(((
600 -Default use CHE=2
601 -
602 -(% style="color:blue" %)**Uplink:**
603 -
604 -916.8 - SF7BW125 to SF12BW125
605 -
606 -917.0 - SF7BW125 to SF12BW125
607 -
608 -917.2 - SF7BW125 to SF12BW125
609 -
610 -917.4 - SF7BW125 to SF12BW125
611 -
612 -917.6 - SF7BW125 to SF12BW125
613 -
614 -917.8 - SF7BW125 to SF12BW125
615 -
616 -918.0 - SF7BW125 to SF12BW125
617 -
618 -918.2 - SF7BW125 to SF12BW125
619 -
620 -
621 -(% style="color:blue" %)**Downlink:**
622 -
623 -923.3 - SF7BW500 to SF12BW500
624 -
625 -923.9 - SF7BW500 to SF12BW500
626 -
627 -924.5 - SF7BW500 to SF12BW500
628 -
629 -925.1 - SF7BW500 to SF12BW500
630 -
631 -925.7 - SF7BW500 to SF12BW500
632 -
633 -926.3 - SF7BW500 to SF12BW500
634 -
635 -926.9 - SF7BW500 to SF12BW500
636 -
637 -927.5 - SF7BW500 to SF12BW500
638 -
639 -923.3 - SF12BW500(RX2 downlink only)
640 -
641 -
642 -
643 -)))
644 -
645 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
646 -
647 -(((
648 -(% style="color:blue" %)**Default Uplink channel:**
649 -)))
650 -
651 -(((
652 -923.2 - SF7BW125 to SF10BW125
653 -)))
654 -
655 -(((
656 -923.4 - SF7BW125 to SF10BW125
657 -)))
658 -
659 -(((
660 -
661 -)))
662 -
663 -(((
664 -(% style="color:blue" %)**Additional Uplink Channel**:
665 -)))
666 -
667 -(((
668 -(OTAA mode, channel added by JoinAccept message)
669 -)))
670 -
671 -(((
672 -
673 -)))
674 -
675 -(((
676 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
677 -)))
678 -
679 -(((
680 -922.2 - SF7BW125 to SF10BW125
681 -)))
682 -
683 -(((
684 -922.4 - SF7BW125 to SF10BW125
685 -)))
686 -
687 -(((
688 -922.6 - SF7BW125 to SF10BW125
689 -)))
690 -
691 -(((
692 -922.8 - SF7BW125 to SF10BW125
693 -)))
694 -
695 -(((
696 -923.0 - SF7BW125 to SF10BW125
697 -)))
698 -
699 -(((
700 -922.0 - SF7BW125 to SF10BW125
701 -)))
702 -
703 -(((
704 -
705 -)))
706 -
707 -(((
708 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
709 -)))
710 -
711 -(((
712 -923.6 - SF7BW125 to SF10BW125
713 -)))
714 -
715 -(((
716 -923.8 - SF7BW125 to SF10BW125
717 -)))
718 -
719 -(((
720 -924.0 - SF7BW125 to SF10BW125
721 -)))
722 -
723 -(((
724 -924.2 - SF7BW125 to SF10BW125
725 -)))
726 -
727 -(((
728 -924.4 - SF7BW125 to SF10BW125
729 -)))
730 -
731 -(((
732 -924.6 - SF7BW125 to SF10BW125
733 -)))
734 -
735 -(((
736 -
737 -)))
738 -
739 -(((
740 -(% style="color:blue" %)**Downlink:**
741 -)))
742 -
743 -(((
744 -Uplink channels 1-8 (RX1)
745 -)))
746 -
747 -(((
748 -923.2 - SF10BW125 (RX2)
749 -)))
750 -
751 -
752 -
753 -=== 2.6.6  KR920-923 (KR920) ===
754 -
755 -(((
756 -(% style="color:blue" %)**Default channel:**
757 -)))
758 -
759 -(((
760 -922.1 - SF7BW125 to SF12BW125
761 -)))
762 -
763 -(((
764 -922.3 - SF7BW125 to SF12BW125
765 -)))
766 -
767 -(((
768 -922.5 - SF7BW125 to SF12BW125
769 -)))
770 -
771 -(((
772 -
773 -)))
774 -
775 -(((
776 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
777 -)))
778 -
779 -(((
780 -922.1 - SF7BW125 to SF12BW125
781 -)))
782 -
783 -(((
784 -922.3 - SF7BW125 to SF12BW125
785 -)))
786 -
787 -(((
788 -922.5 - SF7BW125 to SF12BW125
789 -)))
790 -
791 -(((
792 -922.7 - SF7BW125 to SF12BW125
793 -)))
794 -
795 -(((
796 -922.9 - SF7BW125 to SF12BW125
797 -)))
798 -
799 -(((
800 -923.1 - SF7BW125 to SF12BW125
801 -)))
802 -
803 -(((
804 -923.3 - SF7BW125 to SF12BW125
805 -)))
806 -
807 -(((
808 -
809 -)))
810 -
811 -(((
812 -(% style="color:blue" %)**Downlink:**
813 -)))
814 -
815 -(((
816 -Uplink channels 1-7(RX1)
817 -)))
818 -
819 -(((
820 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
821 -)))
822 -
823 -
824 -
825 -=== 2.6.7  IN865-867 (IN865) ===
826 -
827 -(((
828 -(% style="color:blue" %)**Uplink:**
829 -)))
830 -
831 -(((
832 -865.0625 - SF7BW125 to SF12BW125
833 -)))
834 -
835 -(((
836 -865.4025 - SF7BW125 to SF12BW125
837 -)))
838 -
839 -(((
840 -865.9850 - SF7BW125 to SF12BW125
841 -)))
842 -
843 -(((
844 -
845 -)))
846 -
847 -(((
848 -(% style="color:blue" %)**Downlink:**
849 -)))
850 -
851 -(((
852 -Uplink channels 1-3 (RX1)
853 -)))
854 -
855 -(((
856 -866.550 - SF10BW125 (RX2)
857 -)))
858 -
859 -
860 -
861 -== 2.7  LED Indicator ==
862 -
863 -The LDDS75 has an internal LED which is to show the status of different state.
864 -
865 -
866 866  * Blink once when device power on.
867 867  * The device detects the sensor and flashes 5 times.
868 868  * Solid ON for 5 seconds once device successful Join the network.
869 -* Blink once when device transmit a packet.
870 870  
495 +Blink once when device transmit a packet.
871 871  
872 872  
498 +
873 873  == 2.8  ​Firmware Change Log ==
874 874  
875 875  
... ... @@ -1086,8 +1086,6 @@
1086 1086  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1087 1087  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1088 1088  
1089 -
1090 -
1091 1091  = 4.  FAQ =
1092 1092  
1093 1093  == 4.1  What is the frequency plan for LDDS75? ==
... ... @@ -1147,8 +1147,6 @@
1147 1147  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1148 1148  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1149 1149  
1150 -
1151 -
1152 1152  = 7. ​ Packing Info =
1153 1153  
1154 1154  
... ... @@ -1163,8 +1163,6 @@
1163 1163  * Package Size / pcs : cm
1164 1164  * Weight / pcs : g
1165 1165  
1166 -
1167 -
1168 1168  = 8.  ​Support =
1169 1169  
1170 1170  * 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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