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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	+
67	67	== 1.3 Radar probe specification ==
68	68
69	69
70	70	* Measuring Method: FMCW
71		-* Frequency: 24.000 24.500 GHz
	73	+* Frequency: 24.000 ~~ 24.500 GHz
72	72	* Measurement output power: 6dBm
73		-* Measure range: 0.5 20m
	75	+* Measure range: 0.5 ~~ 20m
74	74	* Accuracy: ±0.1m
75	75	* Resolution: 0.01m
76	76	* Horizontal Angel: 78°
77	77	* Vertical Angel: 23°
78	78
	81	+
	82	+
79	79	== 1.4  Storage Temperature ==
80	80
81	81
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95	95	* Sewer
96	96	* Bottom water level monitoring
97	97
	102	+
	103	+
98	98	== 1.6  Specification ==
99	99
100	100
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112	112	* B20 @H-FDD: 800MHz
113	113	* B28 @H-FDD: 700MHz
114	114
	121	+
	122	+
115	115	== 1.7  Installation ==
116	116
117	117
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140	140
141	141	The diagram below shows the working flow in the default firmware of NMDS200:
142	142
143		-[[image:image-20221021110615-5.png]]
	151	+[[image:image-20221021110615-5.png||height="996" width="492"]]
144	144
145	145
146	146	== 2.2 ​ Configure NMDS200 ==
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203	203	(% 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]]
204	204
205	205
206		-
207	207	=== 2.2.3 Use CoAP protocol to uplink data ===
208	208
209	209
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315	315	|=(% 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**
316	316	|=(% 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"]]
317	317
318		-(% border="1" style="background-color:#ffffcc; color:green; width:350px" %)
	325	+(% border="1" style="background-color:#ffffcc; color:green; width:429px" %)
319	319	|(% style="width:60px" %)**4**|(% style="width:60px" %)**2**|(% style="width:60px" %)**2**|(% style="width:60px" %)**4**|(% style="width:100px" %)(((
320	320	**1-32 group**
321	321	)))
322		-|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.6A0Timestamp"]]| Distance 1 | Distance  2|(% style="width:67px" %)Time stamp|(% style="width:98px" %)...
	329	+|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.6A0Timestamp"]]| Distance 1 | Distance  2|(% style="width:67px" %)Time stamp|(% style="width:100px" %)...
323	323
324	324	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NMDS200 uplink data.
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351	351	* (% style="color:#037691" %)**Timestamp: **(%%)0x6390453d =1670399293 (Unix Time)
352	352
353	353
	361	+
354	354	== 2.4  Payload Explanation and Sensor Interface ==
355	355
356	356	=== 2.4.1  Device ID ===
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466	466	* For each uplink probe, LED will be on for 500ms.
467	467
468	468
	477	+
469	469	== 2.7  Distance alarm function ==
470	470
471	471
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705	705	* NMDS200 NB-IoT Microwave Radar Distance Sensor x 1
706	706
707	707
	717	+
708	708	= 9.  Support =
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710	710