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14	14	**Table of Contents：**
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16	16	{{toc/}}
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26	26	= 1.  Introduction =
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28	28	== 1.1 ​ What is NMDS200 NB-IoT Microwave Radar Distance Sensor ==
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146	146	[[image:image-20221207170748-2.png||height="345" width="634"]]
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149	149	== 1.8  Pin Definitions and Switch ==
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151	151
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176	176	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NMDS200 will use** (% style="color:red" %)CoAP(120.24.4.116:5683)(%%)** or raw (% style="color:red" %)**UDP(120.24.4.116:5601) **(%%)or (% style="color:red" %)**MQTT(120.24.4.116:1883) **(%%)or (% style="color:red" %)**TCP(120.24.4.116:5600)protocol**(%%) to send data to the test server.
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180	180
181	181	=== 2.2.1 Insert NB-IoT SIM card ===
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241	241	For parameter description, please refer to AT command set
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246	246	After configuring the server address and (% style="color:green" %)**reset NMDS200**(%%) (via AT+ATZ ), NMDS200 will start to uplink sensor values to the CoAP server.
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260	260	* (% style="color:#037691" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
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265	265	[[image:image-20221021111033-11.png||height="241" width="576"]]
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286	286	* (% style="color:#037691" %)**AT+SUBTOPIC=NSE01_SUB          ** (%%) ~/~/  Set the subscription topic of MQTT
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291	291	[[image:1670405928926-116.png]]
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305	305	* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5600   ** (%%) ~/~/  Set TCP server address and port
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310	310	[[image:image-20221021111131-15.png]]
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496	496	(% style="color:#037691" %)**Example 1:**
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498		-AT+ ALARM1 =60,200  ~/~/ Alarm when distance1 lower than 60.
	485	+AT+ ALARM1 =60,200  ~/~/ Alarm when moisture lower than 60.
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500	500	AT+ ALARM2 =min,max
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503	503	(% style="color:#037691" %)**Example 2:**
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505		-AT+ ALARM2 =200,1500  ~/~/ Alarm when distance2 lower than 1500.
	492	+AT+ ALARM2 =200,1500  ~/~/ Alarm when temperature lower than 1500
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507	507
508	508	== 2.8  Set the number of data to be uploaded and the recording time ==
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530	530	== 2.10  ​Firmware Change Log ==
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532	532
533		-Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/8elvp2qi9bcv47a/AAAKp0E2nUffztF0tYhqPoE1a?dl=0>>https://www.dropbox.com/sh/8elvp2qi9bcv47a/AAAKp0E2nUffztF0tYhqPoE1a?dl=0]]
	520	+Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/hacq385w6qgnonr/AAC3D79GFGF1JdZUIzNegn2Ha?dl=0>>https://www.dropbox.com/sh/hacq385w6qgnonr/AAC3D79GFGF1JdZUIzNegn2Ha?dl=0]]
534	534
535	535	Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
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