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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 174.9
edited by Xiaoling
on 2022/06/15 10:43
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 +280,21 @@
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.
293 293  
294 294  
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.
369 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
299 299  
300 300  **Example:**
301 301  
... ... @@ -341,701 +341,300 @@
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/]]
415 +LDDS20 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS20/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
345 345  )))
346 346  
347 347  
348 348  
349 -== 2.4  Uplink Interval ==
420 +== 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"]]
422 +By default, LDDS20 prints the downlink payload to console port.
352 352  
424 +[[image:image-20220615100930-15.png]]
353 353  
354 354  
355 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**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 -)))
430 +* (% 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 -)))
432 +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 -)))
434 +Payload:    01 00 00 1E    TDC=30S
372 372  
436 +Payload:    01 00 00 3C    TDC=60S
373 373  
374 -[[image:1654592790040-760.png]]
375 375  
439 +* (% style="color:blue" %)**Reset**
376 376  
377 -[[image:1654592800389-571.png]]
441 +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.**
444 +* (% style="color:blue" %)**CFM**
381 381  
382 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
446 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
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.
450 +== 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.
453 +[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
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:**
461 +(% 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)
465 +(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
453 453  )))
454 454  
455 -(((
456 -869.525 - SF9BW125 (RX2 downlink only)
457 -)))
458 458  
469 +[[image:1654592790040-760.png]]
459 459  
460 460  
461 -=== 2.6.2  US902-928(US915) ===
472 +[[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:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
467 467  
468 -903.9 - SF7BW125 to SF10BW125
477 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
469 469  
470 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
471 471  
472 -904.3 - SF7BW125 to SF10BW125
473 473  
474 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
475 475  
476 -904.7 - SF7BW125 to SF10BW125
484 +[[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
488 +== 2.6  LED Indicator ==
483 483  
490 +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
493 +* Blink once when device power on.
494 +* The device detects the sensor and flashes 5 times.
495 +* Solid ON for 5 seconds once device successful Join the network.
496 +* Blink once when device transmit a packet.
488 488  
489 -923.9 - SF7BW500 to SF12BW500
490 490  
491 -924.5 - SF7BW500 to SF12BW500
492 492  
493 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
494 494  
495 -925.7 - SF7BW500 to SF12BW500
496 496  
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 -
511 511  (((
512 -Used in China, Default use CHE=1
504 +**Firmware download link:  **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
513 513  )))
514 514  
515 515  (((
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 -(((
552 552  
553 553  )))
554 554  
555 555  (((
556 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
557 557  )))
558 558  
559 -(((
560 -506.7 - SF7BW125 to SF12BW125
561 -)))
562 562  
563 -(((
564 -506.9 - SF7BW125 to SF12BW125
565 -)))
566 566  
567 -(((
568 -507.1 - SF7BW125 to SF12BW125
569 -)))
517 +== 2.8  Battery Analysis ==
570 570  
571 -(((
572 -507.3 - SF7BW125 to SF12BW125
573 -)))
574 574  
575 -(((
576 -507.5 - SF7BW125 to SF12BW125
577 -)))
578 578  
579 -(((
580 -507.7 - SF7BW125 to SF12BW125
581 -)))
582 582  
583 -(((
584 -507.9 - SF7BW125 to SF12BW125
585 -)))
522 +=== 2.8.1  Battery Type ===
586 586  
587 -(((
588 -508.1 - SF7BW125 to SF12BW125
589 -)))
524 +The LDDS20 battery is a combination of a 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
590 590  
591 -(((
592 -505.3 - SF12BW125 (RX2 downlink only)
593 -)))
594 594  
527 +The battery related documents as below:
595 595  
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 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
643 643  )))
644 -
645 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
646 -
647 -(((
648 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
649 649  )))
650 -
651 -(((
652 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
653 653  )))
654 654  
655 -(((
656 -923.4 - SF7BW125 to SF10BW125
657 -)))
539 + [[image:image-20220615102527-16.png]]
658 658  
659 -(((
660 -
661 -)))
662 662  
663 -(((
664 -(% style="color:blue" %)**Additional Uplink Channel**:
665 -)))
666 666  
667 -(((
668 -(OTAA mode, channel added by JoinAccept message)
669 -)))
543 +== 2.8.2  Battery Note ==
670 670  
671 -(((
672 -
673 -)))
545 +The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to uplink data, then the battery life may be decreased.
674 674  
675 -(((
676 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
677 -)))
678 678  
679 -(((
680 -922.2 - SF7BW125 to SF10BW125
681 -)))
682 682  
683 -(((
684 -922.4 - SF7BW125 to SF10BW125
685 -)))
549 +=== 2.8.3  Replace the battery ===
686 686  
687 687  (((
688 -922.6 - SF7BW125 to SF10BW125
552 +You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
689 689  )))
690 690  
691 691  (((
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 -(((
704 704  
705 705  )))
706 706  
707 707  (((
708 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
560 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
709 709  )))
710 710  
711 -(((
712 -923.6 - SF7BW125 to SF10BW125
713 -)))
714 714  
715 -(((
716 -923.8 - SF7BW125 to SF10BW125
717 -)))
718 718  
719 -(((
720 -924.0 - SF7BW125 to SF10BW125
721 -)))
565 +== 2.8.4  Battery Life Analyze ==
722 722  
723 -(((
724 -924.2 - SF7BW125 to SF10BW125
725 -)))
567 +Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
726 726  
727 -(((
728 -924.4 - SF7BW125 to SF10BW125
729 -)))
569 +[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
730 730  
731 -(((
732 -924.6 - SF7BW125 to SF10BW125
733 -)))
734 734  
735 -(((
736 -
737 -)))
738 738  
739 -(((
740 -(% style="color:blue" %)**Downlink:**
741 -)))
573 += 3.  Using the AT Commands =
742 742  
743 743  (((
744 -Uplink channels 1-8 (RX1)
745 -)))
746 -
747 747  (((
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 -(((
772 772  
773 773  )))
774 -
775 -(((
776 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
777 777  )))
778 778  
779 -(((
780 -922.1 - SF7BW125 to SF12BW125
781 -)))
581 +== 3.1  Access AT Commands ==
782 782  
783 -(((
784 -922.3 - SF7BW125 to SF12BW125
785 -)))
583 +LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below.
786 786  
787 -(((
788 -922.5 - SF7BW125 to SF12BW125
789 -)))
790 790  
791 -(((
792 -922.7 - SF7BW125 to SF12BW125
793 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
794 794  
795 -(((
796 -922.9 - SF7BW125 to SF12BW125
797 -)))
798 798  
799 -(((
800 -923.1 - SF7BW125 to SF12BW125
801 -)))
589 +Or if you have below board, use below connection:
802 802  
803 -(((
804 -923.3 - SF7BW125 to SF12BW125
805 -)))
806 806  
807 -(((
808 -
809 -)))
592 +[[image:image-20220610172924-5.png]]
810 810  
811 -(((
812 -(% style="color:blue" %)**Downlink:**
813 -)))
814 814  
815 815  (((
816 -Uplink channels 1-7(RX1)
596 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS20. LDDS20 will output system info once power on as below:
817 817  )))
818 818  
819 -(((
820 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
821 -)))
822 822  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
823 823  
602 +Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]].
824 824  
825 -=== 2.6.7  IN865-867 (IN865) ===
826 826  
827 -(((
828 -(% style="color:blue" %)**Uplink:**
829 -)))
605 +AT+<CMD>?  :  Help on <CMD>
830 830  
831 -(((
832 -865.0625 - SF7BW125 to SF12BW125
833 -)))
607 +AT+<CMD>  :  Run <CMD>
834 834  
835 -(((
836 -865.4025 - SF7BW125 to SF12BW125
837 -)))
609 +AT+<CMD>=<value>  :  Set the value
838 838  
839 -(((
840 -865.9850 - SF7BW125 to SF12BW125
841 -)))
611 +AT+<CMD>=?  :  Get the value
842 842  
843 -(((
844 -
845 -)))
846 846  
847 -(((
848 -(% style="color:blue" %)**Downlink:**
849 -)))
614 +**General Commands**      
850 850  
851 -(((
852 -Uplink channels 1-3 (RX1)
853 -)))
616 +AT                    : Attention       
854 854  
855 -(((
856 -866.550 - SF10BW125 (RX2)
857 -)))
618 +AT?                            : Short Help     
858 858  
620 +ATZ                            : MCU Reset    
859 859  
622 +AT+TDC           : Application Data Transmission Interval 
860 860  
861 -== 2.7  LED Indicator ==
862 862  
863 -The LDDS75 has an internal LED which is to show the status of different state.
625 +**Keys, IDs and EUIs management**
864 864  
627 +AT+APPEUI              : Application EUI      
865 865  
866 -* Blink once when device power on.
867 -* The device detects the sensor and flashes 5 times.
868 -* Solid ON for 5 seconds once device successful Join the network.
869 -* Blink once when device transmit a packet.
629 +AT+APPKEY              : Application Key     
870 870  
631 +AT+APPSKEY            : Application Session Key
871 871  
633 +AT+DADDR              : Device Address     
872 872  
873 -== 2.8  ​Firmware Change Log ==
635 +AT+DEUI                   : Device EUI     
874 874  
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
875 875  
876 -(((
877 -**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/]]
878 -)))
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
879 879  
880 -(((
881 -
882 -)))
641 +AT+CFM          : Confirm Mode       
883 883  
884 -(((
885 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
886 -)))
643 +AT+CFS                     : Confirm Status       
887 887  
645 +AT+JOIN          : Join LoRa? Network       
888 888  
647 +AT+NJM          : LoRa? Network Join Mode    
889 889  
890 -== 2.9  Mechanical ==
649 +AT+NJS                     : LoRa? Network Join Status    
891 891  
651 +AT+RECV                  : Print Last Received Data in Raw Format
892 892  
893 -[[image:image-20220610172003-1.png]]
653 +AT+RECVB                : Print Last Received Data in Binary Format      
894 894  
655 +AT+SEND                  : Send Text Data      
895 895  
896 -[[image:image-20220610172003-2.png]]
657 +AT+SENB                  : Send Hexadecimal Data
897 897  
898 898  
660 +**LoRa Network Management**
899 899  
900 -== 2.10  Battery Analysis ==
662 +AT+ADR          : Adaptive Rate
901 901  
902 -=== 2.10.1  Battery Type ===
664 +AT+CLASS                : LoRa Class(Currently only support class A
903 903  
904 -The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
666 +AT+DCS           : Duty Cycle Setting 
905 905  
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
906 906  
907 -The battery related documents as below:
670 +AT+FCD           : Frame Counter Downlink       
908 908  
909 -* (((
910 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
911 -)))
912 -* (((
913 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
914 -)))
915 -* (((
916 -[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
917 -)))
672 +AT+FCU           : Frame Counter Uplink   
918 918  
919 - [[image:image-20220610172400-3.png]]
674 +AT+JN1DL                : Join Accept Delay1
920 920  
676 +AT+JN2DL                : Join Accept Delay2
921 921  
678 +AT+PNM                   : Public Network Mode   
922 922  
923 -=== 2.10.2  Replace the battery ===
680 +AT+RX1DL                : Receive Delay1      
924 924  
925 -(((
926 -You can change the battery in the LDDS75.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
927 -)))
682 +AT+RX2DL                : Receive Delay2      
928 928  
929 -(((
930 -
931 -)))
684 +AT+RX2DR               : Rx2 Window Data Rate 
932 932  
933 -(((
934 -The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
935 -)))
686 +AT+RX2FQ               : Rx2 Window Frequency
936 936  
688 +AT+TXP           : Transmit Power
937 937  
938 938  
939 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
691 +**Information** 
940 940  
941 -(((
942 -(((
943 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
944 -)))
945 -)))
693 +AT+RSSI           : RSSI of the Last Received Packet   
946 946  
947 -* (((
948 -(((
949 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
950 -)))
951 -)))
952 -* (((
953 -(((
954 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
955 -)))
956 -)))
695 +AT+SNR           : SNR of the Last Received Packet   
957 957  
958 -(((
959 -(((
960 -
961 -)))
697 +AT+VER           : Image Version and Frequency Band       
962 962  
963 -(((
964 -There are two kinds of commands to configure LDDS75, they are:
965 -)))
966 -)))
699 +AT+FDR           : Factory Data Reset
967 967  
968 -* (((
969 -(((
970 -(% style="color:#4f81bd" %)** General Commands**.
971 -)))
972 -)))
701 +AT+PORT                  : Application Port    
973 973  
974 -(((
975 -(((
976 -These commands are to configure:
977 -)))
978 -)))
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
979 979  
980 -* (((
981 -(((
982 -General system settings like: uplink interval.
983 -)))
984 -)))
985 -* (((
986 -(((
987 -LoRaWAN protocol & radio related command.
988 -)))
989 -)))
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
990 990  
991 -(((
992 -(((
993 -They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
994 -)))
995 -)))
996 996  
997 -(((
998 -(((
999 -
1000 -)))
1001 -)))
1002 1002  
1003 -* (((
1004 -(((
1005 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1006 -)))
1007 -)))
1008 -
1009 -(((
1010 -(((
1011 -These commands only valid for LDDS75, as below:
1012 -)))
1013 -)))
1014 -
1015 -
1016 -
1017 -== 3.1  Access AT Commands ==
1018 -
1019 -LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1020 -
1021 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1022 -
1023 -
1024 -Or if you have below board, use below connection:
1025 -
1026 -
1027 -[[image:image-20220610172924-5.png]]
1028 -
1029 -
1030 -(((
1031 -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:
1032 -)))
1033 -
1034 -
1035 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1036 -
1037 -
1038 -
1039 1039  == 3.2  Set Transmit Interval Time ==
1040 1040  
1041 1041  Feature: Change LoRaWAN End Node Transmit Interval.
... ... @@ -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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