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Last modified by Mengting Qiu on 2024/09/05 17:35
From version 84.21
edited by Xiaoling
on 2023/09/11 15:52
Change comment: There is no comment for this version
To version 84.25
edited by Xiaoling
on 2023/09/11 16:02
Change comment: There is no comment for this version

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51 51  * 8500mAh Battery for long term use
52 52  * Nano SIM card slot for NB-IoT SIM
53 53  
54 +
55 +
54 54  == 1.3 Specification ==
55 55  
56 56  
... ... @@ -96,6 +96,8 @@
96 96  * STOP Mode: 10uA @ 3.3v
97 97  * Max transmit power: 350mA@3.3v
98 98  
101 +
102 +
99 99  == 1.4 Suitable Container & Liquid ==
100 100  
101 101  
... ... @@ -106,6 +106,8 @@
106 106  ** Pure non metal material: <10 mm
107 107  * Pure liquid without irregular deposition.
108 108  
113 +
114 +
109 109  (% style="display:none" %)
110 110  
111 111  == 1.5 Install DDS20-NB ==
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192 192  Reset DDS20-NB and see if the BLUE LED is slowly blinking.
193 193  )))
194 194  
195 -[[image:image-20230809172509-1.png]]
201 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230809172509-1.png?rev=1.1||alt="image-20230809172509-1.png"]]
196 196  
197 197  (((
198 198  (% style="color:red" %)**Note :**(% style="color:red; display:none" %)** **
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212 212  
213 213  * Smart liquefied gas solution
214 214  
221 +
222 +
215 215  == 1.7 Precautions ==
216 216  
217 217  
... ... @@ -252,6 +252,8 @@
252 252  )))
253 253  |(% 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.
254 254  
263 +
264 +
255 255  == 1.10 BLE connection ==
256 256  
257 257  
... ... @@ -399,6 +399,8 @@
399 399  
400 400  * Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+NOUD=8 ** (%%)Command. Each entry includes (from left to right): Temperature, Humidity, Sampling time.
401 401  
412 +
413 +
402 402  === 2.2.2 HEX format Payload(Type~=0) ===
403 403  
404 404  
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466 466  
467 467  (% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
468 468  
481 +
469 469  == 2.3  ​Uplink Payload ==
470 470  
471 471  
... ... @@ -516,6 +516,8 @@
516 516  
517 517  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
518 518  
532 +
533 +
519 519  === 2.3.3  Interrupt Pin ===
520 520  
521 521  
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596 596  
597 597  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%) ~/~/ Trigger by rising edge
598 598  
614 +
615 +
599 599  = 3. Configure DDS20-NB =
600 600  
601 601  == 3.1 Configure Methods ==
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607 607  
608 608  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
609 609  
627 +
628 +
610 610  == 3.2 AT Commands Set ==
611 611  
612 612  
... ... @@ -704,7 +704,7 @@
704 704  
705 705  * Fix bugs.
706 706  
707 -Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fhb3uyl4gt6clru/AAAiZVTFcxrfE1JOOyfcgO9ha?dl=0]]**
726 +Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/nyzeu0lf0amcaek/AAC6UZrqyTcAyJgXOH7l9F9Ka?dl=0]]**
708 708  
709 709  Methods to Update Firmware:
710 710  
... ... @@ -712,6 +712,8 @@
712 712  
713 713  * 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]]**.
714 714  
734 +
735 +
715 715  = 6. FAQ =
716 716  
717 717  == 6.1 How can I access t BC660K-GL AT Commands? ==
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731 731  DDS20-NB has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-NB"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
732 732  
733 733  If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
755 +
756 +
734 734  )))
735 735  
736 736  = 8. Order Info =
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766 766  
767 767  * Weight / pcs : 180g
768 768  
792 +
793 +
769 769  = 10. Support =
770 770  
771 771