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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 152.3
edited by Xiaoling
on 2022/06/14 17:18
Change comment: There is no comment for this version
To version 173.6
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  
... ... @@ -25,33 +25,65 @@
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  (((
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.
30 +
33 33  )))
34 34  
35 35  (((
36 -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.
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  (((
40 -LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
38 +
41 41  )))
42 42  
43 43  (((
44 -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.
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  (((
46 +
47 +)))
48 +
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.
51 +)))
52 +
53 +(((
54 +
55 +)))
56 +
57 +(((
58 +LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
59 +)))
60 +
61 +(((
62 +
63 +)))
64 +
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 +(((
48 48  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
49 49  )))
50 50  )))
51 51  )))
80 +)))
52 52  
53 53  
54 -[[image:1654847051249-359.png]]
83 +[[image:1655255122126-327.png]]
55 55  
56 56  
57 57  
... ... @@ -59,9 +59,10 @@
59 59  
60 60  * LoRaWAN 1.0.3 Class A
61 61  * Ultra low power consumption
62 -* Distance Detection by Ultrasonic technology
63 -* Flat object range 280mm - 7500mm
64 -* 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)
65 65  * Cable Length : 25cm
66 66  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
67 67  * AT Commands to change parameters
... ... @@ -68,72 +68,130 @@
68 68  * Uplink on periodically
69 69  * Downlink to change configure
70 70  * IP66 Waterproof Enclosure
71 -* 4000mAh or 8500mAh Battery for long term use
101 +* 8500mAh Battery for long term use
72 72  
103 +== 1.3  Suitable Container & Liquid ==
73 73  
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.
74 74  
75 -== 1.3  Specification ==
112 +== 1.4  Mechanical ==
76 76  
77 -=== 1.3.1  Rated environmental conditions ===
114 +[[image:image-20220615090910-1.png]]
78 78  
79 -[[image:image-20220610154839-1.png]]
80 80  
81 -(((
82 -**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)**
83 -)))
117 +[[image:image-20220615090910-2.png]]
84 84  
85 85  
86 86  
87 -=== 1.3.2  Effective measurement range Reference beam pattern ===
121 +== 1.5  Install LDDS20 ==
88 88  
89 -**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
90 90  
124 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
91 91  
126 +LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
92 92  
93 -[[image:1654852253176-749.png]]
128 +[[image:image-20220615091045-3.png]]
94 94  
95 95  
96 96  
97 -(((
98 -**(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.**
99 -)))
132 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
100 100  
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.
101 101  
102 -[[image:1654852175653-550.png]](% style="display:none" %) ** **
136 +[[image:image-20220615092010-11.png]]
103 103  
104 104  
139 +No polish needed if the container is shine metal surface without paint or non-metal container.
105 105  
106 -== 1.5 ​ Applications ==
141 +[[image:image-20220615092044-12.png]]
107 107  
108 -* Horizontal distance measurement
109 -* Liquid level measurement
110 -* Parking management system
111 -* Object proximity and presence detection
112 -* Intelligent trash can management system
113 -* Robot obstacle avoidance
114 -* Automatic control
115 -* Sewer
116 -* Bottom water level monitoring
117 117  
118 118  
145 +(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
119 119  
120 -== 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.
121 121  
122 122  
123 -[[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.
124 124  
152 +[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
125 125  
126 126  
127 -= 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.
128 128  
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 +
129 129  == 2.1  How it works ==
130 130  
131 131  (((
132 -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.
133 133  )))
134 134  
135 135  (((
136 -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.
137 137  )))
138 138  
139 139  
... ... @@ -145,7 +145,7 @@
145 145  )))
146 146  
147 147  (((
148 -[[image:1654848616367-242.png]]
236 +[[image:1655257698953-697.png]]
149 149  )))
150 150  
151 151  (((
... ... @@ -153,11 +153,13 @@
153 153  )))
154 154  
155 155  (((
156 -(% 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.
157 157  )))
158 158  
159 159  (((
160 -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.
161 161  )))
162 162  
163 163  [[image:image-20220607170145-1.jpeg]]
... ... @@ -172,6 +172,8 @@
172 172  )))
173 173  
174 174  (((
265 +
266 +
175 175  **Add APP EUI in the application**
176 176  )))
177 177  
... ... @@ -185,6 +185,7 @@
185 185  [[image:image-20220610161353-7.png]]
186 186  
187 187  
280 +
188 188  You can also choose to create the device manually.
189 189  
190 190   [[image:image-20220610161538-8.png]]
... ... @@ -197,16 +197,17 @@
197 197  
198 198  
199 199  
200 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
293 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
201 201  
202 202  
203 203  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
204 204  
205 -[[image:image-20220610161724-10.png]]
298 +[[image:image-20220615095102-14.png]]
206 206  
207 207  
301 +
208 208  (((
209 -(% 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.
210 210  )))
211 211  
212 212  [[image:1654849068701-275.png]]
... ... @@ -217,12 +217,10 @@
217 217  
218 218  (((
219 219  (((
220 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
221 -)))
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
222 222  
223 -(((
224 -Uplink payload includes in total 4 bytes.
225 -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).
226 226  )))
227 227  )))
228 228  
... ... @@ -249,7 +249,7 @@
249 249  === 2.3.1  Battery Info ===
250 250  
251 251  
252 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
253 253  
254 254  Ex1: 0x0B45 = 2885mV
255 255  
... ... @@ -260,22 +260,19 @@
260 260  === 2.3.2  Distance ===
261 261  
262 262  (((
263 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
264 264  )))
265 265  
266 266  (((
267 -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.**
268 268  )))
269 269  
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.
270 270  
271 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
272 -* 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.
273 -
274 -
275 -
276 276  === 2.3.3  Interrupt Pin ===
277 277  
278 -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.
279 279  
280 280  **Example:**
281 281  
... ... @@ -321,528 +321,84 @@
321 321  The payload decoder function for TTN V3 is here:
322 322  
323 323  (((
324 -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/]]
325 325  )))
326 326  
327 327  
328 328  
329 -== 2.4  Uplink Interval ==
418 +== 2.4  Downlink Payload ==
330 330  
331 -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.
332 332  
422 +[[image:image-20220615100930-15.png]]
333 333  
334 334  
335 -== 2.5  ​Show Data in DataCake IoT Server ==
425 +**Examples:**
336 336  
337 -(((
338 -[[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:
339 -)))
340 340  
341 -(((
342 -
343 -)))
428 +* (% style="color:blue" %)**Set TDC**
344 344  
345 -(((
346 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
347 -)))
430 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
348 348  
349 -(((
350 -(% 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:**
351 -)))
432 +Payload:    01 00 00 1E    TDC=30S
352 352  
434 +Payload:    01 00 00 3C    TDC=60S
353 353  
354 -[[image:1654592790040-760.png]]
355 355  
437 +* (% style="color:blue" %)**Reset**
356 356  
357 -[[image:1654592800389-571.png]]
439 +If payload = 0x04FF, it will reset the LDDS20
358 358  
359 359  
360 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
442 +* (% style="color:blue" %)**CFM**
361 361  
362 -(% 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
363 363  
364 -[[image:1654851029373-510.png]]
365 365  
366 366  
367 -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 ==
368 368  
369 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
370 -
371 -
372 -
373 -== 2.6  Frequency Plans ==
374 -
375 375  (((
376 -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:
377 377  )))
378 378  
379 -
380 -
381 -=== 2.6.1  EU863-870 (EU868) ===
382 -
383 383  (((
384 -(% style="color:blue" %)**Uplink:**
385 -)))
386 -
387 -(((
388 -868.1 - SF7BW125 to SF12BW125
389 -)))
390 -
391 -(((
392 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
393 -)))
394 -
395 -(((
396 -868.5 - SF7BW125 to SF12BW125
397 -)))
398 -
399 -(((
400 -867.1 - SF7BW125 to SF12BW125
401 -)))
402 -
403 -(((
404 -867.3 - SF7BW125 to SF12BW125
405 -)))
406 -
407 -(((
408 -867.5 - SF7BW125 to SF12BW125
409 -)))
410 -
411 -(((
412 -867.7 - SF7BW125 to SF12BW125
413 -)))
414 -
415 -(((
416 -867.9 - SF7BW125 to SF12BW125
417 -)))
418 -
419 -(((
420 -868.8 - FSK
421 -)))
422 -
423 -(((
424 424  
425 425  )))
426 426  
427 427  (((
428 -(% 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.**
429 429  )))
430 430  
431 431  (((
432 -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:**
433 433  )))
434 434  
435 -(((
436 -869.525 - SF9BW125 (RX2 downlink only)
437 -)))
438 438  
467 +[[image:1654592790040-760.png]]
439 439  
440 440  
441 -=== 2.6.2  US902-928(US915) ===
470 +[[image:1654592800389-571.png]]
442 442  
443 -(((
444 -Used in USA, Canada and South America. Default use CHE=2
445 445  
446 -(% style="color:blue" %)**Uplink:**
473 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
447 447  
448 -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)(%%)**
449 449  
450 -904.1 - SF7BW125 to SF10BW125
477 +[[image:1654851029373-510.png]]
451 451  
452 -904.3 - SF7BW125 to SF10BW125
453 453  
454 -904.5 - SF7BW125 to SF10BW125
480 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
455 455  
456 -904.7 - SF7BW125 to SF10BW125
482 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
457 457  
458 -904.9 - SF7BW125 to SF10BW125
459 459  
460 -905.1 - SF7BW125 to SF10BW125
461 461  
462 -905.3 - SF7BW125 to SF10BW125
486 +== 2.6  LED Indicator ==
463 463  
488 +The LDDS20 has an internal LED which is to show the status of different state.
464 464  
465 -(% style="color:blue" %)**Downlink:**
466 466  
467 -923.3 - SF7BW500 to SF12BW500
468 -
469 -923.9 - SF7BW500 to SF12BW500
470 -
471 -924.5 - SF7BW500 to SF12BW500
472 -
473 -925.1 - SF7BW500 to SF12BW500
474 -
475 -925.7 - SF7BW500 to SF12BW500
476 -
477 -926.3 - SF7BW500 to SF12BW500
478 -
479 -926.9 - SF7BW500 to SF12BW500
480 -
481 -927.5 - SF7BW500 to SF12BW500
482 -
483 -923.3 - SF12BW500(RX2 downlink only)
484 -
485 -
486 -
487 -)))
488 -
489 -=== 2.6.3  CN470-510 (CN470) ===
490 -
491 -(((
492 -Used in China, Default use CHE=1
493 -)))
494 -
495 -(((
496 -(% style="color:blue" %)**Uplink:**
497 -)))
498 -
499 -(((
500 -486.3 - SF7BW125 to SF12BW125
501 -)))
502 -
503 -(((
504 -486.5 - SF7BW125 to SF12BW125
505 -)))
506 -
507 -(((
508 -486.7 - SF7BW125 to SF12BW125
509 -)))
510 -
511 -(((
512 -486.9 - SF7BW125 to SF12BW125
513 -)))
514 -
515 -(((
516 -487.1 - SF7BW125 to SF12BW125
517 -)))
518 -
519 -(((
520 -487.3 - SF7BW125 to SF12BW125
521 -)))
522 -
523 -(((
524 -487.5 - SF7BW125 to SF12BW125
525 -)))
526 -
527 -(((
528 -487.7 - SF7BW125 to SF12BW125
529 -)))
530 -
531 -(((
532 -
533 -)))
534 -
535 -(((
536 -(% style="color:blue" %)**Downlink:**
537 -)))
538 -
539 -(((
540 -506.7 - SF7BW125 to SF12BW125
541 -)))
542 -
543 -(((
544 -506.9 - SF7BW125 to SF12BW125
545 -)))
546 -
547 -(((
548 -507.1 - SF7BW125 to SF12BW125
549 -)))
550 -
551 -(((
552 -507.3 - SF7BW125 to SF12BW125
553 -)))
554 -
555 -(((
556 -507.5 - SF7BW125 to SF12BW125
557 -)))
558 -
559 -(((
560 -507.7 - SF7BW125 to SF12BW125
561 -)))
562 -
563 -(((
564 -507.9 - SF7BW125 to SF12BW125
565 -)))
566 -
567 -(((
568 -508.1 - SF7BW125 to SF12BW125
569 -)))
570 -
571 -(((
572 -505.3 - SF12BW125 (RX2 downlink only)
573 -)))
574 -
575 -
576 -
577 -=== 2.6.4  AU915-928(AU915) ===
578 -
579 -(((
580 -Default use CHE=2
581 -
582 -(% style="color:blue" %)**Uplink:**
583 -
584 -916.8 - SF7BW125 to SF12BW125
585 -
586 -917.0 - SF7BW125 to SF12BW125
587 -
588 -917.2 - SF7BW125 to SF12BW125
589 -
590 -917.4 - SF7BW125 to SF12BW125
591 -
592 -917.6 - SF7BW125 to SF12BW125
593 -
594 -917.8 - SF7BW125 to SF12BW125
595 -
596 -918.0 - SF7BW125 to SF12BW125
597 -
598 -918.2 - SF7BW125 to SF12BW125
599 -
600 -
601 -(% style="color:blue" %)**Downlink:**
602 -
603 -923.3 - SF7BW500 to SF12BW500
604 -
605 -923.9 - SF7BW500 to SF12BW500
606 -
607 -924.5 - SF7BW500 to SF12BW500
608 -
609 -925.1 - SF7BW500 to SF12BW500
610 -
611 -925.7 - SF7BW500 to SF12BW500
612 -
613 -926.3 - SF7BW500 to SF12BW500
614 -
615 -926.9 - SF7BW500 to SF12BW500
616 -
617 -927.5 - SF7BW500 to SF12BW500
618 -
619 -923.3 - SF12BW500(RX2 downlink only)
620 -
621 -
622 -
623 -)))
624 -
625 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
626 -
627 -(((
628 -(% style="color:blue" %)**Default Uplink channel:**
629 -)))
630 -
631 -(((
632 -923.2 - SF7BW125 to SF10BW125
633 -)))
634 -
635 -(((
636 -923.4 - SF7BW125 to SF10BW125
637 -)))
638 -
639 -(((
640 -
641 -)))
642 -
643 -(((
644 -(% style="color:blue" %)**Additional Uplink Channel**:
645 -)))
646 -
647 -(((
648 -(OTAA mode, channel added by JoinAccept message)
649 -)))
650 -
651 -(((
652 -
653 -)))
654 -
655 -(((
656 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
657 -)))
658 -
659 -(((
660 -922.2 - SF7BW125 to SF10BW125
661 -)))
662 -
663 -(((
664 -922.4 - SF7BW125 to SF10BW125
665 -)))
666 -
667 -(((
668 -922.6 - SF7BW125 to SF10BW125
669 -)))
670 -
671 -(((
672 -922.8 - SF7BW125 to SF10BW125
673 -)))
674 -
675 -(((
676 -923.0 - SF7BW125 to SF10BW125
677 -)))
678 -
679 -(((
680 -922.0 - SF7BW125 to SF10BW125
681 -)))
682 -
683 -(((
684 -
685 -)))
686 -
687 -(((
688 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
689 -)))
690 -
691 -(((
692 -923.6 - SF7BW125 to SF10BW125
693 -)))
694 -
695 -(((
696 -923.8 - SF7BW125 to SF10BW125
697 -)))
698 -
699 -(((
700 -924.0 - SF7BW125 to SF10BW125
701 -)))
702 -
703 -(((
704 -924.2 - SF7BW125 to SF10BW125
705 -)))
706 -
707 -(((
708 -924.4 - SF7BW125 to SF10BW125
709 -)))
710 -
711 -(((
712 -924.6 - SF7BW125 to SF10BW125
713 -)))
714 -
715 -(((
716 -
717 -)))
718 -
719 -(((
720 -(% style="color:blue" %)**Downlink:**
721 -)))
722 -
723 -(((
724 -Uplink channels 1-8 (RX1)
725 -)))
726 -
727 -(((
728 -923.2 - SF10BW125 (RX2)
729 -)))
730 -
731 -
732 -
733 -=== 2.6.6  KR920-923 (KR920) ===
734 -
735 -(((
736 -(% style="color:blue" %)**Default channel:**
737 -)))
738 -
739 -(((
740 -922.1 - SF7BW125 to SF12BW125
741 -)))
742 -
743 -(((
744 -922.3 - SF7BW125 to SF12BW125
745 -)))
746 -
747 -(((
748 -922.5 - SF7BW125 to SF12BW125
749 -)))
750 -
751 -(((
752 -
753 -)))
754 -
755 -(((
756 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
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 -922.7 - SF7BW125 to SF12BW125
773 -)))
774 -
775 -(((
776 -922.9 - SF7BW125 to SF12BW125
777 -)))
778 -
779 -(((
780 -923.1 - SF7BW125 to SF12BW125
781 -)))
782 -
783 -(((
784 -923.3 - SF7BW125 to SF12BW125
785 -)))
786 -
787 -(((
788 -
789 -)))
790 -
791 -(((
792 -(% style="color:blue" %)**Downlink:**
793 -)))
794 -
795 -(((
796 -Uplink channels 1-7(RX1)
797 -)))
798 -
799 -(((
800 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
801 -)))
802 -
803 -
804 -
805 -=== 2.6.7  IN865-867 (IN865) ===
806 -
807 -(((
808 -(% style="color:blue" %)**Uplink:**
809 -)))
810 -
811 -(((
812 -865.0625 - SF7BW125 to SF12BW125
813 -)))
814 -
815 -(((
816 -865.4025 - SF7BW125 to SF12BW125
817 -)))
818 -
819 -(((
820 -865.9850 - SF7BW125 to SF12BW125
821 -)))
822 -
823 -(((
824 -
825 -)))
826 -
827 -(((
828 -(% style="color:blue" %)**Downlink:**
829 -)))
830 -
831 -(((
832 -Uplink channels 1-3 (RX1)
833 -)))
834 -
835 -(((
836 -866.550 - SF10BW125 (RX2)
837 -)))
838 -
839 -
840 -
841 -== 2.7  LED Indicator ==
842 -
843 -The LDDS75 has an internal LED which is to show the status of different state.
844 -
845 -
846 846  * Blink once when device power on.
847 847  * The device detects the sensor and flashes 5 times.
848 848  * Solid ON for 5 seconds once device successful Join the network.
... ... @@ -1066,8 +1066,6 @@
1066 1066  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1067 1067  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1068 1068  
1069 -
1070 -
1071 1071  = 4.  FAQ =
1072 1072  
1073 1073  == 4.1  What is the frequency plan for LDDS75? ==
... ... @@ -1127,8 +1127,6 @@
1127 1127  * (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1128 1128  * (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1129 1129  
1130 -
1131 -
1132 1132  = 7. ​ Packing Info =
1133 1133  
1134 1134  
... ... @@ -1143,8 +1143,6 @@
1143 1143  * Package Size / pcs : cm
1144 1144  * Weight / pcs : g
1145 1145  
1146 -
1147 -
1148 1148  = 8.  ​Support =
1149 1149  
1150 1150  * 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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