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64	64	* Micro SIM card slot for NB-IoT SIM
65	65	* 8500mAh Battery for long-term use
66	66
67		-
68		-
69	69	== 1.3 Radar probe specification ==
70	70
71	71
72	72	* Measuring Method: FMCW
73		-* Frequency: 24.000 ~~ 24.500 GHz
	71	+* Frequency: 24.000 24.500 GHz
74	74	* Measurement output power: 6dBm
75		-* Measure range: 0.5 ~~ 20m
	73	+* Measure range: 0.5 20m
76	76	* Accuracy: ±0.1m
77	77	* Resolution: 0.01m
78	78	* Horizontal Angel: 78°
79	79	* Vertical Angel: 23°
80	80
81		-
82		-
83	83	== 1.4  Storage Temperature ==
84	84
85	85
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99	99	* Sewer
100	100	* Bottom water level monitoring
101	101
102		-
103		-
104	104	== 1.6  Specification ==
105	105
106	106
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118	118	* B20 @H-FDD: 800MHz
119	119	* B28 @H-FDD: 700MHz
120	120
121		-
122		-
123	123	== 1.7  Installation ==
124	124
125	125
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148	148
149	149	The diagram below shows the working flow in the default firmware of NMDS200:
150	150
151		-[[image:image-20221021110615-5.png||height="996" width="492"]]
	143	+[[image:image-20221021110615-5.png]]
152	152
153	153
154	154	== 2.2 ​ Configure NMDS200 ==
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211	211	(% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
212	212
213	213
	206	+
214	214	=== 2.2.3 Use CoAP protocol to uplink data ===
215	215
216	216
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322	322	|=(% scope="row" style="width: 60px;" %)**Size(bytes)**|(% style="width:50px" %)**8**|(% style="width:30px" %)**2**|(% style="width:30px" %)**2**|(% style="width:75px" %)**1**|(% style="width:30px" %)**1**|(% style="width:50px" %)**1**|(% style="width:60px" %)**2**|(% style="width:60px" %)**2**
323	323	|=(% style="width: 93px;" %)**Value**|(% style="width:67px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:40px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:45px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:75px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:54px" %)MOD|(% style="width:62px" %)Exit flag|(% style="width:94px" %) [[Distance 1>>||anchor="H2.4.5A0Distance"]] |(% style="width:93px" %) [[Distance 2>>||anchor="H2.4.5A0Distance"]]
324	324
325		-(% border="1" style="background-color:#ffffcc; color:green; width:429px" %)
	318	+(% border="1" style="background-color:#ffffcc; color:green; width:350px" %)
326	326	|(% style="width:60px" %)**4**|(% style="width:60px" %)**2**|(% style="width:60px" %)**2**|(% style="width:60px" %)**4**|(% style="width:100px" %)(((
327	327	**1-32 group**
328	328	)))
329		-|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.6A0Timestamp"]]| Distance 1 | Distance  2|(% style="width:67px" %)Time stamp|(% style="width:100px" %)...
	322	+|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.6A0Timestamp"]]| Distance 1 | Distance  2|(% style="width:67px" %)Time stamp|(% style="width:98px" %)...
330	330
331	331	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NMDS200 uplink data.
332	332
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358	358	* (% style="color:#037691" %)**Timestamp: **(%%)0x6390453d =1670399293 (Unix Time)
359	359
360	360
361		-
362	362	== 2.4  Payload Explanation and Sensor Interface ==
363	363
364	364	=== 2.4.1  Device ID ===
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474	474	* For each uplink probe, LED will be on for 500ms.
475	475
476	476
477		-
478	478	== 2.7  Distance alarm function ==
479	479
480	480
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714	714	* NMDS200 NB-IoT Microwave Radar Distance Sensor x 1
715	715
716	716
717		-
718	718	= 9.  Support =
719	719
720	720

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1		-XWiki.Xiaoling

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1		-67.6 KB

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