Last modified by Mengting Qiu on 2023/12/14 11:15

From version 70.23
edited by Xiaoling
on 2023/06/13 09:10
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To version 71.3
edited by Xiaoling
on 2023/06/13 10:22
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -DDS75-LB -- LoRaWAN Distance Detection Sensor User Manual
1 +DDS45-LB -- LoRaWAN Distance Detection Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230612170349-1.png||height="656" width="656"]]
2 +[[image:image-20230613100900-1.png||height="683" width="683"]]
3 3  
4 4  
5 5  
6 -
7 7  **Table of Contents:**
8 8  
9 9  {{toc/}}
... ... @@ -18,17 +18,17 @@
18 18  == 1.1 What is LoRaWAN Distance Detection Sensor ==
19 19  
20 20  
21 -The Dragino DDS75-LB is a (% style="color:blue" %)** 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:blue" %)** ultrasonic sensing technology**(%%) for (% style="color:blue" %)**distance measurement**(%%), and (% style="color:blue" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The DDS75-LB 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.
20 +The Dragino DDS45-LB is a (% style="color:blue" %)** 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:blue" %)** ultrasonic sensing technology**(%%) for (% style="color:blue" %)**distance measurement**(%%), and (% style="color:blue" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The DDS45-LB 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.
22 22  
23 23  It detects the distance(% style="color:blue" %)**  between the measured object and the sensor**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
24 24  
25 -The LoRa wireless technology used in DDS75-LB 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.
24 +The LoRa wireless technology used in DDS45-LB 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.
26 26  
27 -DDS75-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
26 +DDS45-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
28 28  
29 -DDS75-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
28 +DDS45-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
30 30  
31 -Each DDS75-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
30 +Each DDS45-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
32 32  
33 33  [[image:image-20230612170943-2.png||height="525" width="912"]]
34 34  
... ... @@ -50,11 +50,39 @@
50 50  * IP66 Waterproof Enclosure
51 51  * 8500mAh Battery for long term use
52 52  
52 +
53 53  == 1.3 Specification ==
54 54  
55 55  
56 -(% style="color:#037691" %)**Rated environmental conditions:**
56 +(% style="color:#037691" %)**Common DC Characteristics:**
57 57  
58 +* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
59 +* Operating Temperature: -40 ~~ 85°C
60 +
61 +(% style="color:#037691" %)**LoRa Spec:**
62 +
63 +* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
64 +* Max +22 dBm constant RF output vs.
65 +* RX sensitivity: down to -139 dBm.
66 +* Excellent blocking immunity
67 +
68 +(% style="color:#037691" %)**Battery:**
69 +
70 +* Li/SOCI2 un-chargeable battery
71 +* Capacity: 8500mAh
72 +* Self-Discharge: <1% / Year @ 25°C
73 +* Max continuously current: 130mA
74 +* Max boost current: 2A, 1 second
75 +
76 +(% style="color:#037691" %)**Power Consumption**
77 +
78 +* Sleep Mode: 5uA @ 3.3v
79 +* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
80 +
81 +
82 +== 1.4 Rated environmental conditions ==
83 +
84 +
58 58  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
59 59  |(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
60 60  **Minimum value**
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80 80  
81 81  )))
82 82  
83 -(% style="color:#037691" %)**Common DC Characteristics:**
110 +== 1.5 Effective measurement range Reference beam pattern ==
84 84  
85 -* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
86 -* Operating Temperature: -40 ~~ 85°C
87 87  
88 -(% style="color:#037691" %)**LoRa Spec:**
89 -
90 -* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
91 -* Max +22 dBm constant RF output vs.
92 -* RX sensitivity: down to -139 dBm.
93 -* Excellent blocking immunity
94 -
95 -(% style="color:#037691" %)**Battery:**
96 -
97 -* Li/SOCI2 un-chargeable battery
98 -* Capacity: 8500mAh
99 -* Self-Discharge: <1% / Year @ 25°C
100 -* Max continuously current: 130mA
101 -* Max boost current: 2A, 1 second
102 -
103 -(% style="color:#037691" %)**Power Consumption**
104 -
105 -* Sleep Mode: 5uA @ 3.3v
106 -* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
107 -
108 -== 1.4 Effective measurement range Reference beam pattern ==
109 -
110 -
111 111  (% style="color:blue" %)**1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
112 112  
113 113  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]]
... ... @@ -118,7 +118,7 @@
118 118  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]]
119 119  
120 120  
121 -== 1.5 Applications ==
123 +== 1.6 Applications ==
122 122  
123 123  
124 124  * Horizontal distance measurement
... ... @@ -131,15 +131,16 @@
131 131  * Sewer
132 132  * Bottom water level monitoring
133 133  
134 -== 1.6 Sleep mode and working mode ==
135 135  
137 +== 1.7 Sleep mode and working mode ==
136 136  
139 +
137 137  (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
138 138  
139 139  (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
140 140  
141 141  
142 -== 1.7 Button & LEDs ==
145 +== 1.8 Button & LEDs ==
143 143  
144 144  
145 145  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
... ... @@ -158,12 +158,13 @@
158 158  )))
159 159  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
160 160  
161 -== 1.8 BLE connection ==
162 162  
165 +== 1.9 BLE connection ==
163 163  
164 -DDS75-LB support BLE remote configure.
165 165  
168 +DDS45-LB support BLE remote configure.
166 166  
170 +
167 167  BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
168 168  
169 169  * Press button to send an uplink
... ... @@ -173,16 +173,14 @@
173 173  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
174 174  
175 175  
176 -== 1.9 Pin Definitions ==
180 +== 1.10 Pin Definitions ==
177 177  
178 178  [[image:image-20230523174230-1.png]]
179 179  
180 180  
185 +== 1.11 Mechanical ==
181 181  
182 182  
183 -== 2.10 Mechanical ==
184 -
185 -
186 186  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
187 187  
188 188  
... ... @@ -204,12 +204,12 @@
204 204  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-2.png?rev=1.1||alt="image-20220610172003-2.png"]]
205 205  
206 206  
207 -= 2. Configure DDS75-LB to connect to LoRaWAN network =
209 += 2. Configure DDS45-LB to connect to LoRaWAN network =
208 208  
209 209  == 2.1 How it works ==
210 210  
211 211  
212 -The DDS75-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS75-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
214 +The DDS45-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS45-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
213 213  
214 214  (% style="display:none" %) (%%)
215 215  
... ... @@ -223,9 +223,9 @@
223 223  [[image:image-20230612171032-3.png||height="492" width="855"]](% style="display:none" %)
224 224  
225 225  
226 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS75-LB.
228 +(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
227 227  
228 -Each DDS75-LB is shipped with a sticker with the default device EUI as below:
230 +Each DDS45-LB is shipped with a sticker with the default device EUI as below:
229 229  
230 230  [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
231 231  
... ... @@ -254,10 +254,10 @@
254 254  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
255 255  
256 256  
257 -(% style="color:blue" %)**Step 2:**(%%) Activate on DDS75-LB
259 +(% style="color:blue" %)**Step 2:**(%%) Activate on DDS45-LB
258 258  
259 259  
260 -Press the button for 5 seconds to activate the DDS75-LB.
262 +Press the button for 5 seconds to activate the DDS45-LB.
261 261  
262 262  (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
263 263  
... ... @@ -268,7 +268,7 @@
268 268  
269 269  
270 270  (((
271 -DDS75-LB will uplink payload via LoRaWAN with below payload format: 
273 +DDS45-LB will uplink payload via LoRaWAN with below payload format: 
272 272  )))
273 273  
274 274  (((
... ... @@ -292,7 +292,7 @@
292 292  === 2.3.1  Battery Info ===
293 293  
294 294  
295 -Check the battery voltage for DDS75-LB.
297 +Check the battery voltage for DDS45-LB.
296 296  
297 297  Ex1: 0x0B45 = 2885mV
298 298  
... ... @@ -314,7 +314,7 @@
314 314  
315 315  
316 316  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
317 -* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
319 +* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. All value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
318 318  
319 319  
320 320  === 2.3.3  Interrupt Pin ===
... ... @@ -340,9 +340,7 @@
340 340  
341 341  If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
342 342  
343 -(% style="color:red" %)**Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.**
344 344  
345 -
346 346  === 2.3.5  Sensor Flag ===
347 347  
348 348  
... ... @@ -365,7 +365,7 @@
365 365  The payload decoder function for TTN V3 is here:
366 366  
367 367  (((
368 -DDS75-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
368 +DDS45-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
369 369  )))
370 370  
371 371  
... ... @@ -372,7 +372,7 @@
372 372  == 2.4  Uplink Interval ==
373 373  
374 374  
375 -The DDS75-LB 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"]]
375 +The DDS45-LB 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>>||anchor="H3.3.1SetTransmitIntervalTime"]]
376 376  
377 377  
378 378  == 2.5  ​Show Data in DataCake IoT Server ==
... ... @@ -382,9 +382,6 @@
382 382  [[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:
383 383  )))
384 384  
385 -(((
386 -
387 -)))
388 388  
389 389  (((
390 390  (% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
... ... @@ -403,7 +403,7 @@
403 403  
404 404  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
405 405  
406 -(% style="color:blue" %)**Step 4**(%%)**: Search the DDS75-LB and add DevEUI.**
403 +(% style="color:blue" %)**Step 4**(%%)**: Search the DDS45-LB and add DevEUI.**
407 407  
408 408  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
409 409  
... ... @@ -417,19 +417,19 @@
417 417  == 2.6 Datalog Feature ==
418 418  
419 419  
420 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS75-LB will store the reading for future retrieving purposes.
417 +Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS45-LB will store the reading for future retrieving purposes.
421 421  
422 422  
423 423  === 2.6.1 Ways to get datalog via LoRaWAN ===
424 424  
425 425  
426 -Set PNACKMD=1, DDS75-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS75-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
423 +Set PNACKMD=1, DDS45-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS45-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
427 427  
428 428  * (((
429 -a) DDS75-LB will do an ACK check for data records sending to make sure every data arrive server.
426 +a) DDS45-LB will do an ACK check for data records sending to make sure every data arrive server.
430 430  )))
431 431  * (((
432 -b) DDS75-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS75-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS75-LB gets a ACK, DDS75-LB will consider there is a network connection and resend all NONE-ACK messages.
429 +b) DDS45-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS45-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS45-LB gets a ACK, DDS45-LB will consider there is a network connection and resend all NONE-ACK messages.
433 433  )))
434 434  
435 435  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
... ... @@ -440,7 +440,7 @@
440 440  === 2.6.2 Unix TimeStamp ===
441 441  
442 442  
443 -DDS75-LB uses Unix TimeStamp format based on
440 +DDS45-LB uses Unix TimeStamp format based on
444 444  
445 445  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
446 446  
... ... @@ -487,7 +487,7 @@
487 487  )))
488 488  
489 489  (((
490 -Uplink Internal =5s,means DDS75-LB will send one packet every 5s. range 5~~255s.
487 +Uplink Internal =5s,means DDS45-LB will send one packet every 5s. range 5~~255s.
491 491  )))
492 492  
493 493  
... ... @@ -494,17 +494,17 @@
494 494  == 2.7 Frequency Plans ==
495 495  
496 496  
497 -The DDS75-LB 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.
494 +The DDS45-LB 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.
498 498  
499 499  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
500 500  
501 501  
502 -= 3. Configure DDS75-LB =
499 += 3. Configure DDS45-LB =
503 503  
504 504  == 3.1 Configure Methods ==
505 505  
506 506  
507 -DDS75-LB supports below configure method:
504 +DDS45-LB supports below configure method:
508 508  
509 509  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
510 510  
... ... @@ -512,6 +512,7 @@
512 512  
513 513  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
514 514  
512 +
515 515  == 3.2 General Commands ==
516 516  
517 517  
... ... @@ -526,10 +526,10 @@
526 526  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
527 527  
528 528  
529 -== 3.3 Commands special design for DDS75-LB ==
527 +== 3.3 Commands special design for DDS45-LB ==
530 530  
531 531  
532 -These commands only valid for DDS75-LB, as below:
530 +These commands only valid for DDS45-LB, as below:
533 533  
534 534  
535 535  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -572,6 +572,9 @@
572 572  )))
573 573  * (((
574 574  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
573 +
574 +
575 +
575 575  )))
576 576  
577 577  === 3.3.2 Set Interrupt Mode ===
... ... @@ -608,10 +608,11 @@
608 608  
609 609  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
610 610  
612 +
611 611  = 4. Battery & Power Consumption =
612 612  
613 613  
614 -DDS75-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
616 +DDS45-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
615 615  
616 616  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
617 617  
... ... @@ -636,9 +636,9 @@
636 636  
637 637  * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
638 638  
641 +
639 639  = 6. FAQ =
640 640  
641 -
642 642  == 6.1  What is the frequency plan for DDS75-LB? ==
643 643  
644 644  
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