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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 150.53
edited by Xiaoling
on 2022/06/11 09:21
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
... ... @@ -1,11 +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  
... ... @@ -272,21 +272,19 @@
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 -
286 -
287 287  === 2.3.3  Interrupt Pin ===
288 288  
289 -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.
290 290  
291 291  **Example:**
292 292  
... ... @@ -332,545 +332,109 @@
332 332  The payload decoder function for TTN V3 is here:
333 333  
334 334  (((
335 -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/]]
336 336  )))
337 337  
338 338  
339 339  
340 -== 2.4  Uplink Interval ==
418 +== 2.4  Downlink Payload ==
341 341  
342 -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.
343 343  
422 +[[image:image-20220615100930-15.png]]
344 344  
345 345  
346 -== 2.5  ​Show Data in DataCake IoT Server ==
425 +**Examples:**
347 347  
348 -(((
349 -[[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:
350 -)))
351 351  
352 -(((
353 -
354 -)))
428 +* (% style="color:blue" %)**Set TDC**
355 355  
356 -(((
357 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
358 -)))
430 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
359 359  
360 -(((
361 -(% 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:**
362 -)))
432 +Payload:    01 00 00 1E    TDC=30S
363 363  
434 +Payload:    01 00 00 3C    TDC=60S
364 364  
365 -[[image:1654592790040-760.png]]
366 366  
437 +* (% style="color:blue" %)**Reset**
367 367  
368 -[[image:1654592800389-571.png]]
439 +If payload = 0x04FF, it will reset the LDDS20
369 369  
370 370  
371 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
442 +* (% style="color:blue" %)**CFM**
372 372  
373 -(% 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
374 374  
375 -[[image:1654851029373-510.png]]
376 376  
377 377  
378 -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 ==
379 379  
380 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
381 -
382 -
383 -
384 -== 2.6  Frequency Plans ==
385 -
386 386  (((
387 -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:
388 388  )))
389 389  
390 -
391 -
392 -=== 2.6.1  EU863-870 (EU868) ===
393 -
394 394  (((
395 -(% style="color:blue" %)**Uplink:**
396 -)))
397 -
398 -(((
399 -868.1 - SF7BW125 to SF12BW125
400 -)))
401 -
402 -(((
403 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
404 -)))
405 -
406 -(((
407 -868.5 - SF7BW125 to SF12BW125
408 -)))
409 -
410 -(((
411 -867.1 - SF7BW125 to SF12BW125
412 -)))
413 -
414 -(((
415 -867.3 - SF7BW125 to SF12BW125
416 -)))
417 -
418 -(((
419 -867.5 - SF7BW125 to SF12BW125
420 -)))
421 -
422 -(((
423 -867.7 - SF7BW125 to SF12BW125
424 -)))
425 -
426 -(((
427 -867.9 - SF7BW125 to SF12BW125
428 -)))
429 -
430 -(((
431 -868.8 - FSK
432 -)))
433 -
434 -(((
435 435  
436 436  )))
437 437  
438 438  (((
439 -(% 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.**
440 440  )))
441 441  
442 442  (((
443 -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:**
444 444  )))
445 445  
446 -(((
447 -869.525 - SF9BW125 (RX2 downlink only)
448 -)))
449 449  
467 +[[image:1654592790040-760.png]]
450 450  
451 451  
452 -=== 2.6.2  US902-928(US915) ===
470 +[[image:1654592800389-571.png]]
453 453  
454 -(((
455 -Used in USA, Canada and South America. Default use CHE=2
456 456  
457 -(% style="color:blue" %)**Uplink:**
473 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
458 458  
459 -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)(%%)**
460 460  
461 -904.1 - SF7BW125 to SF10BW125
477 +[[image:1654851029373-510.png]]
462 462  
463 -904.3 - SF7BW125 to SF10BW125
464 464  
465 -904.5 - SF7BW125 to SF10BW125
480 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
466 466  
467 -904.7 - SF7BW125 to SF10BW125
482 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
468 468  
469 -904.9 - SF7BW125 to SF10BW125
470 470  
471 -905.1 - SF7BW125 to SF10BW125
472 472  
473 -905.3 - SF7BW125 to SF10BW125
486 +== 2.6  LED Indicator ==
474 474  
488 +The LDDS20 has an internal LED which is to show the status of different state.
475 475  
476 -(% style="color:blue" %)**Downlink:**
477 477  
478 -923.3 - SF7BW500 to SF12BW500
491 +* Blink once when device power on.
492 +* The device detects the sensor and flashes 5 times.
493 +* Solid ON for 5 seconds once device successful Join the network.
479 479  
480 -923.9 - SF7BW500 to SF12BW500
495 +Blink once when device transmit a packet.
481 481  
482 -924.5 - SF7BW500 to SF12BW500
483 483  
484 -925.1 - SF7BW500 to SF12BW500
485 485  
486 -925.7 - SF7BW500 to SF12BW500
499 +== 2.8  ​Firmware Change Log ==
487 487  
488 -926.3 - SF7BW500 to SF12BW500
489 489  
490 -926.9 - SF7BW500 to SF12BW500
491 -
492 -927.5 - SF7BW500 to SF12BW500
493 -
494 -923.3 - SF12BW500(RX2 downlink only)
495 -
496 -
497 -
498 -)))
499 -
500 -=== 2.6.3  CN470-510 (CN470) ===
501 -
502 502  (((
503 -Used in China, Default use CHE=1
503 +**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/]]
504 504  )))
505 505  
506 506  (((
507 -(% style="color:blue" %)**Uplink:**
508 -)))
509 -
510 -(((
511 -486.3 - SF7BW125 to SF12BW125
512 -)))
513 -
514 -(((
515 -486.5 - SF7BW125 to SF12BW125
516 -)))
517 -
518 -(((
519 -486.7 - SF7BW125 to SF12BW125
520 -)))
521 -
522 -(((
523 -486.9 - SF7BW125 to SF12BW125
524 -)))
525 -
526 -(((
527 -487.1 - SF7BW125 to SF12BW125
528 -)))
529 -
530 -(((
531 -487.3 - SF7BW125 to SF12BW125
532 -)))
533 -
534 -(((
535 -487.5 - SF7BW125 to SF12BW125
536 -)))
537 -
538 -(((
539 -487.7 - SF7BW125 to SF12BW125
540 -)))
541 -
542 -(((
543 543  
544 544  )))
545 545  
546 546  (((
547 -(% style="color:blue" %)**Downlink:**
511 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
548 548  )))
549 549  
550 -(((
551 -506.7 - SF7BW125 to SF12BW125
552 -)))
553 553  
554 -(((
555 -506.9 - SF7BW125 to SF12BW125
556 -)))
557 557  
558 -(((
559 -507.1 - SF7BW125 to SF12BW125
560 -)))
561 -
562 -(((
563 -507.3 - SF7BW125 to SF12BW125
564 -)))
565 -
566 -(((
567 -507.5 - SF7BW125 to SF12BW125
568 -)))
569 -
570 -(((
571 -507.7 - SF7BW125 to SF12BW125
572 -)))
573 -
574 -(((
575 -507.9 - SF7BW125 to SF12BW125
576 -)))
577 -
578 -(((
579 -508.1 - SF7BW125 to SF12BW125
580 -)))
581 -
582 -(((
583 -505.3 - SF12BW125 (RX2 downlink only)
584 -)))
585 -
586 -
587 -
588 -=== 2.6.4  AU915-928(AU915) ===
589 -
590 -(((
591 -Default use CHE=2
592 -
593 -(% style="color:blue" %)**Uplink:**
594 -
595 -916.8 - SF7BW125 to SF12BW125
596 -
597 -917.0 - SF7BW125 to SF12BW125
598 -
599 -917.2 - SF7BW125 to SF12BW125
600 -
601 -917.4 - SF7BW125 to SF12BW125
602 -
603 -917.6 - SF7BW125 to SF12BW125
604 -
605 -917.8 - SF7BW125 to SF12BW125
606 -
607 -918.0 - SF7BW125 to SF12BW125
608 -
609 -918.2 - SF7BW125 to SF12BW125
610 -
611 -
612 -(% style="color:blue" %)**Downlink:**
613 -
614 -923.3 - SF7BW500 to SF12BW500
615 -
616 -923.9 - SF7BW500 to SF12BW500
617 -
618 -924.5 - SF7BW500 to SF12BW500
619 -
620 -925.1 - SF7BW500 to SF12BW500
621 -
622 -925.7 - SF7BW500 to SF12BW500
623 -
624 -926.3 - SF7BW500 to SF12BW500
625 -
626 -926.9 - SF7BW500 to SF12BW500
627 -
628 -927.5 - SF7BW500 to SF12BW500
629 -
630 -923.3 - SF12BW500(RX2 downlink only)
631 -
632 -
633 -
634 -)))
635 -
636 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
637 -
638 -(((
639 -(% style="color:blue" %)**Default Uplink channel:**
640 -)))
641 -
642 -(((
643 -923.2 - SF7BW125 to SF10BW125
644 -)))
645 -
646 -(((
647 -923.4 - SF7BW125 to SF10BW125
648 -)))
649 -
650 -(((
651 -
652 -)))
653 -
654 -(((
655 -(% style="color:blue" %)**Additional Uplink Channel**:
656 -)))
657 -
658 -(((
659 -(OTAA mode, channel added by JoinAccept message)
660 -)))
661 -
662 -(((
663 -
664 -)))
665 -
666 -(((
667 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
668 -)))
669 -
670 -(((
671 -922.2 - SF7BW125 to SF10BW125
672 -)))
673 -
674 -(((
675 -922.4 - SF7BW125 to SF10BW125
676 -)))
677 -
678 -(((
679 -922.6 - SF7BW125 to SF10BW125
680 -)))
681 -
682 -(((
683 -922.8 - SF7BW125 to SF10BW125
684 -)))
685 -
686 -(((
687 -923.0 - SF7BW125 to SF10BW125
688 -)))
689 -
690 -(((
691 -922.0 - SF7BW125 to SF10BW125
692 -)))
693 -
694 -(((
695 -
696 -)))
697 -
698 -(((
699 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
700 -)))
701 -
702 -(((
703 -923.6 - SF7BW125 to SF10BW125
704 -)))
705 -
706 -(((
707 -923.8 - SF7BW125 to SF10BW125
708 -)))
709 -
710 -(((
711 -924.0 - SF7BW125 to SF10BW125
712 -)))
713 -
714 -(((
715 -924.2 - SF7BW125 to SF10BW125
716 -)))
717 -
718 -(((
719 -924.4 - SF7BW125 to SF10BW125
720 -)))
721 -
722 -(((
723 -924.6 - SF7BW125 to SF10BW125
724 -)))
725 -
726 -(((
727 -
728 -)))
729 -
730 -(((
731 -(% style="color:blue" %)**Downlink:**
732 -)))
733 -
734 -(((
735 -Uplink channels 1-8 (RX1)
736 -)))
737 -
738 -(((
739 -923.2 - SF10BW125 (RX2)
740 -)))
741 -
742 -
743 -
744 -=== 2.6.6  KR920-923 (KR920) ===
745 -
746 -(((
747 -(% style="color:blue" %)**Default channel:**
748 -)))
749 -
750 -(((
751 -922.1 - SF7BW125 to SF12BW125
752 -)))
753 -
754 -(((
755 -922.3 - SF7BW125 to SF12BW125
756 -)))
757 -
758 -(((
759 -922.5 - SF7BW125 to SF12BW125
760 -)))
761 -
762 -(((
763 -
764 -)))
765 -
766 -(((
767 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
768 -)))
769 -
770 -(((
771 -922.1 - SF7BW125 to SF12BW125
772 -)))
773 -
774 -(((
775 -922.3 - SF7BW125 to SF12BW125
776 -)))
777 -
778 -(((
779 -922.5 - SF7BW125 to SF12BW125
780 -)))
781 -
782 -(((
783 -922.7 - SF7BW125 to SF12BW125
784 -)))
785 -
786 -(((
787 -922.9 - SF7BW125 to SF12BW125
788 -)))
789 -
790 -(((
791 -923.1 - SF7BW125 to SF12BW125
792 -)))
793 -
794 -(((
795 -923.3 - SF7BW125 to SF12BW125
796 -)))
797 -
798 -(((
799 -
800 -)))
801 -
802 -(((
803 -(% style="color:blue" %)**Downlink:**
804 -)))
805 -
806 -(((
807 -Uplink channels 1-7(RX1)
808 -)))
809 -
810 -(((
811 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
812 -)))
813 -
814 -
815 -
816 -=== 2.6.7  IN865-867 (IN865) ===
817 -
818 -(((
819 -(% style="color:blue" %)**Uplink:**
820 -)))
821 -
822 -(((
823 -865.0625 - SF7BW125 to SF12BW125
824 -)))
825 -
826 -(((
827 -865.4025 - SF7BW125 to SF12BW125
828 -)))
829 -
830 -(((
831 -865.9850 - SF7BW125 to SF12BW125
832 -)))
833 -
834 -(((
835 -
836 -)))
837 -
838 -(((
839 -(% style="color:blue" %)**Downlink:**
840 -)))
841 -
842 -(((
843 -Uplink channels 1-3 (RX1)
844 -)))
845 -
846 -(((
847 -866.550 - SF10BW125 (RX2)
848 -)))
849 -
850 -
851 -
852 -== 2.7  LED Indicator ==
853 -
854 -The LDDS75 has an internal LED which is to show the status of different state.
855 -
856 -
857 -* Blink once when device power on.
858 -* The device detects the sensor and flashes 5 times.
859 -* Solid ON for 5 seconds once device successful Join the network.
860 -* Blink once when device transmit a packet.
861 -
862 -
863 -
864 -== 2.8  ​Firmware Change Log ==
865 -
866 -
867 -**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/]]
868 -
869 -
870 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
871 -
872 -
873 -
874 874  == 2.9  Mechanical ==
875 875  
876 876  
... ... @@ -1011,7 +1011,9 @@
1011 1011  [[image:image-20220610172924-5.png]]
1012 1012  
1013 1013  
656 +(((
1014 1014  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:
658 +)))
1015 1015  
1016 1016  
1017 1017   [[image:image-20220610172924-6.png||height="601" width="860"]]
... ... @@ -1035,16 +1035,19 @@
1035 1035  (((
1036 1036  Format: Command Code (0x01) followed by 3 bytes time value.
1037 1037  
682 +(((
1038 1038  If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
684 +)))
1039 1039  
1040 1040  * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1041 1041  * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1042 1042  )))
689 +)))
1043 1043  
1044 1044  
1045 -
1046 -)))
1047 1047  
693 +
694 +
1048 1048  == 3.3  Set Interrupt Mode ==
1049 1049  
1050 1050  Feature, Set Interrupt mode for GPIO_EXIT.
... ... @@ -1058,7 +1058,9 @@
1058 1058  
1059 1059  Format: Command Code (0x06) followed by 3 bytes.
1060 1060  
708 +(((
1061 1061  This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
710 +)))
1062 1062  
1063 1063  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1064 1064  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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