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51	51	* Micro SIM card slot for NB-IoT SIM
52	52	* 8500mAh Battery for long-term use
53	53
54		-
55	55	== 1.3 Radar probe specification ==
56	56
57	57
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65	65	* Vertical Angel: 23°
66	66
67	67
68		-
69	69	== 1.4  Storage Temperature ==
70	70
71	71
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89	89	* Sewer
90	90	* Bottom water level monitoring
91	91
92		-
93	93	== 1.6  Specification ==
94	94
95	95
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107	107	* B20 @H-FDD: 800MHz
108	108	* B28 @H-FDD: 700MHz
109	109
110		-
111	111	== 1.7  Installation ==
112	112
113	113
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344	344	* (% style="color:#037691" %)**Timestamp: **(%%)0x6390453d =1670399293 (Unix Time)
345	345
346	346
347		-
348	348	== 2.4  Payload Explanation and Sensor Interface ==
349	349
350	350	=== 2.4.1  Device ID ===
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402	402
403	403	[[image:1670407401682-959.png]]
404	404
405		-**(% style="color:blue" %)Object1 Distance:**
	400	+(% style="color:blue" %)**Object1 Distance:**
406	406
407	407	Distance between sensor probe to the first object. (unit: cm)
408	408
409	409	For example, if the data you get from the register is 0x02 0x05, the distance between the sensor and the measured object is
410	410
411		-**(% style="color:blue" %)0205(H) = 517 (D) = 517 cm.**
	406	+(% style="color:blue" %)**0205(H) = 517 (D) = 517 cm.**
412	412
413	413
414		-**(% style="color:blue" %)Object2 Distance:**
	409	+(% style="color:blue" %)**Object2 Distance:**
415	415
416	416	Distance between sensor probe to the second object. (unit: cm)
417	417
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425	425	== 2.5  Downlink Payload ==
426	426
427	427
428		-By default, NDS03A prints the downlink payload to console port.
	423	+By default, NMDS200 prints the downlink payload to console port.
429	429
430	430	[[image:image-20221021111414-18.png]] ​
431	431
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442	442
443	443	* (% style="color:#037691" %)**Reset**
444	444
445		-If payload = 0x04FF, it will reset the NDS03A
	440	+If payload = 0x04FF, it will reset the NMDS200
446	446
447	447	* (% style="color:#037691" %)**INTMOD**
448	448
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452	452	== 2.6  ​LED Indicator ==
453	453
454	454
455		-The NDS03A has an internal LED which is to show the status of different states.
	450	+The NMDS200 has an internal LED which is to show the status of different states.
456	456
457	457	* When the device starts normally, the LED will light up for 1 second.
458	458	* After NDS03A join NB-IoT network. The LED will be ON for 3 seconds.
459	459	* For each uplink probe, LED will be on for 500ms.
460	460
461		-== 2.7  Alarm Base on Timeout ==
462	462
463	463
464		-NDS03A can monitor the timeout for a status change, this feature can be used to monitor some events such as door opening too long etc. Related Parameters are:
	458	+== 2.7  Distance alarm function ==
465	465
466	466
467		-(% style="color:blue" %)**1. Keep Status: Status to be monitor**
	461	+(% style="color:blue" %)**AT Command: AT+ALARM1=min,max**
468	468
469		-Keep Status = 1: Monitor Close to Open event
	463	+**Example 1:**
470	470
471		-Keep Status = 0: Monitor Open to Close event
	465	+AT+ ALARM1 =60,200  ~/~/ Alarm when moisture lower than 60.
472	472
	467	+AT+ ALARM2 =min,max
473	473
474		-(% style="color:blue" %)**2. Keep Time: Timeout to send an Alarm**
475	475
476		-Range 0 ~~ 65535(0xFFFF) seconds.
	470	+**Example 2:**
477	477
478		-If keep time = 0, Disable Alarm Base on Timeout feature.
	472	+AT+ ALARM2 =200,1500  ~/~/ Alarm when temperature lower than 1500
479	479
480		-If keep time > 0, device will monitor the keep status event and send an alarm when status doesn't change after timeout.
481	481
482		-
483		-(% style="color:blue" %)**AT Command to configure:**
484		-
485		-(% style="color:blue" %)**PB14 PIN:**
486		-
487		-(% style="color:#037691" %)**AT+TTRIG=1,30** (%%) **~-~->**  When the **Keep Status** change from connected to disconnect, and device remains in disconnect status for more than 30 seconds. NDS03A will send an uplink packet, the [[Alarm bit>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/#H2.3.3Real-TimeOpen2FCloseStatus2CUplinkFPORT3D2]] (the second bit of 1^^st^^ byte of payload) on this uplink packet is set to 1.
488		-
489		-(% style="color:#037691" %)**AT+TTRIG=0,0 ** (%%) **~-~->** Default Value, disable timeout Alarm.
490		-
491		-
492		-(% style="color:blue" %)**PB15 PIN:**
493		-
494		-(% style="color:#037691" %)**AT+TTRIG2=1,30**
495		-
496		-(% style="color:#037691" %)**AT+TTRIG2=0,0 **
497		-
498		-
499	499	== 2.8  Set debug mode ==
500	500
501	501