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...	...	@@ -370,6 +370,7 @@
370	370	)))
371	371	|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.10A0Timestamp"]]|(% style="width:115px" %)Door Status(pb14)|(% style="width:92px" %)door open num(pb14)|(% style="width:99px" %)last open time(pb14)|(% style="width:67px" %)Time stamp|(% style="width:74px" %)...
372	372
	373	+
373	373	(% style="color:blue" %)**When AT+TTRCHANNEL=2:**
374	374
375	375
...	...	@@ -418,6 +418,7 @@
418	418
419	419	* (% style="color:#037691" %)**Timestamp:**(%%) 0x637590df =1668649183 (Unix Time)
420	420
	422	+
421	421	== 2.4  Payload Explanation and Sensor Interface ==
422	422
423	423
...	...	@@ -435,18 +435,20 @@
435	435	The Device ID is stored in a non-erase area, Upgrade the firmware or run AT+FDR won't erase the Device ID.
436	436
437	437
	440	+
438	438	=== 2.4.2  Version Info ===
439	439
440	440
441	441	Specify the software version: 0x64=100, which means firmware version 1.00.
442	442
443		-For example 0x00 64 : This device is NDS03A 1 with firmware version 1.0.0.
	446	+For example 0x00 64 : This device is CPN01 with firmware version 1.0.0.
444	444
445	445
	449	+
446	446	=== 2.4.3  Battery Info ===
447	447
448	448
449		-Check the battery voltage for NDS03A.
	453	+Check the battery voltage for CPN01.
450	450
451	451	Ex1: 0x0B45 = 2885mV
452	452
...	...	@@ -453,6 +453,7 @@
453	453	Ex2: 0x0B49 = 2889mV
454	454
455	455
	460	+
456	456	=== 2.4.4  Signal Strength ===
457	457
458	458
...	...	@@ -471,35 +471,66 @@
471	471	**99**    Not known or not detectable
472	472
473	473
474		-=== 2.4.5  Disalarm: (default: 0) ===
475	475
	480	+=== 2.4.5  Calculate Flag ===
476	476
477		-(% style="color:blue" %)**If Disalarm = 1**(%%), NDS03A will only send uplink at every TDC periodically. This is normally use for pulse meter application, in this application, there are many open/close event, and platform only care about the total number of pulse.
478	478
479		-(% style="color:blue" %)**If Disalarm = 0**(%%), NDS03A will send uplink at every TDC periodically and send data on each open/close event. This is useful for the application user need to monitor the open/close event in real-time.
	483	+The calculate flag is a user defined field, IoT server can use this filed to handle different meters with different pulse factors. For example, if there are 100 water meters, meter 1~~50 are 1 liter/pulse and meter 51 ~~ 100 has 1.5 liter/pulse.
480	480
481		- (% style="color:red" %)**Note:**(%%) When Disalarm=0, a high frequently open/close event will cause lots of uplink and drain battery very fast.
	485	+User can set calculate flag to 1 for meter 1~~50 and 2 for meter 51 ~~ 100, So IoT Server can use this field for calculation.
482	482
	487	+Default value: 0.
483	483
484		-=== 2.4.6  Keep Status & Keep Time ===
	489	+Range (6 bits): (b)000000 ~~ (b) 111111
485	485
486	486
487		-Shows the configure value of Alarm Base on Timeout Feature
488	488
	493	+=== 2.4.6  Alarm ===
489	489
490		-=== 2.4.7  Timestamp ===
491	491
	496	+See [[Alarm Base on Timeout>>||anchor="H2.7A0AlarmBaseonTimeout"]]
492	492
493		-Timestamp : 0x6315537b =1662342011
494	494
495	495
	500	+=== 2.4.7  Contact Status ===
496	496
497		-=== 2.4.8  Switch Dual Channel Mode ===
498	498
	503	+0: Open
499	499
500		-NDS03A can connect two door sensors. Another door sensor can be connected to PB15 pin. Both channels support alarm function.
	505	+1: Close
501	501
502	502
	508	+
	509	+=== 2.4.8  Total pulse ===
	510	+
	511	+
	512	+Total pulse/counting based on dry [[contact trigger event>>||anchor="H2.12Setcountnumber"]]
	513	+
	514	+Range (3 Bytes) : 0x000000 ~~ 0xFFFFFF . Max: 16777215
	515	+
	516	+
	517	+
	518	+=== 2.4.9  The last open duration ===
	519	+
	520	+
	521	+Dry Contact last open duration.
	522	+
	523	+Unit: min.
	524	+
	525	+[[image:image-20221021111346-17.png||height="146" width="770"]]
	526	+
	527	+
	528	+
	529	+=== 2.4.10  Timestamp ===
	530	+
	531	+
	532	+Timestamp : 0x6315537b =1662342011
	533	+
	534	+Convert Unix timestamp to time 2022-9-5 9:40:11.
	535	+
	536	+**~ **
	537	+
	538	+
503	503	== 2.5  Downlink Payload ==
504	504
505	505