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15	15	== 1.1 What is S31x-LB LoRaWAN Temperature & Humidity Sensor ==
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18	18	The Dragino S31x-LB is a (% style="color:blue" %)**LoRaWAN Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the (% style="color:blue" %)**surrounding environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via LoRaWAN wireless protocol.
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20	20	The temperature & humidity sensor used in S31x-LB is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a (% style="color:blue" %)**waterproof anti-condensation casing**(%%) for long term use.
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22	22	The LoRa wireless technology used in S31x-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
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24	24	S31x-LB supports (% style="color:blue" %)**Temperature & Humdity alarm feature,**(%%) user can set temperature alarm for instant notice. S31x-LB supports Datalog feature, it can save the data when there is no LoRaWAN network and uplink when network recover.
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26	26	S31x-LB has max 3 probes which measure maximum 3 temperature points.
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28	28	S31x-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
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30	30	S31x-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
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32	32	Each S31x-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
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34	34
35	35	== 1.2 ​Features ==
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545	545	(% style="color:blue" %)**AT Command: AT+TDC**
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547		-(% border="1" cellspacing="4" style="background-color:#F2F2F2; width:510px" %)
	563	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
548	548	|=(% style="width: 156px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3" %)**Function**|=(% style="background-color:#D9E2F3" %)**Response**
549	549	|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
550	550	30000
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577	577
578	578	=== 3.3.3 Set Temperature Alarm Threshold: ===
579	579
580		-* **(% style="color:blue" %)AT Command:**
	596	+* (% style="color:blue" %)**AT Command:**
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582		-**(% style="color:#037691" %)AT+SHTEMP=min,max**
	598	+(% style="color:#037691" %)**AT+SHTEMP=min,max**
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584	584	* When min=0, and max≠0, Alarm higher than max
585	585	* When min≠0, and max=0, Alarm lower than min
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590	590	AT+SHTEMP=0,30   ~/~/ Alarm when temperature higher than 30.
591	591
592		-* **(% style="color:blue" %)Downlink Payload:**
	608	+* (% style="color:blue" %)**Downlink Payload:**
593	593
594		-**(% style="color:#037691" %)0x(0C 01 00 1E)**  (%%) ~/~/Set AT+SHTEMP=0,30
	610	+(% style="color:#037691" %)**0x(0C 01 00 1E)**  (%%) ~/~/Set AT+SHTEMP=0,30
595	595
596		-**(% style="color:red" %)(note: 3^^rd^^ byte= 0x00 for low limit(not set), 4^^th^^ byte = 0x1E for high limit: 30)**
	612	+(% style="color:red" %)**(note: 3^^rd^^ byte= 0x00 for low limit(not set), 4^^th^^ byte = 0x1E for high limit: 30)**
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598	598
599	599	=== 3.3.4 Set Humidity Alarm Threshold: ===
600	600
601		-* **(% style="color:blue" %)AT Command:**
	617	+* (% style="color:blue" %)**AT Command:**
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603		-**(% style="color:#037691" %)AT+SHHUM=min,max**
	619	+(% style="color:#037691" %)**AT+SHHUM=min,max**
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605	605	* When min=0, and max≠0, Alarm higher than max
606	606	* When min≠0, and max=0, Alarm lower than min
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611	611	AT+SHHUM=70,0   ~/~/ Alarm when humidity lower than 70%.
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613		-* **(% style="color:blue" %)Downlink Payload:**
	629	+* (% style="color:blue" %)**Downlink Payload:**
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615		-**(% style="color:#037691" %)0x(0C 02 46 00)**(%%)  ~/~/Set AT+SHTHUM=70,0
	631	+(% style="color:#037691" %)**0x(0C 02 46 00)**(%%)  ~/~/Set AT+SHTHUM=70,0
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617		-**(% style="color:red" %)(note: 3^^rd^^ byte= 0x46 for low limit (70%), 4^^th^^ byte = 0x00 for high limit (not set))**
	633	+(% style="color:red" %)**(note: 3^^rd^^ byte= 0x46 for low limit (70%), 4^^th^^ byte = 0x00 for high limit (not set))**
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620	620	=== 3.3.5 Set Alarm Interval: ===
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622	622	The shortest time of two Alarm packet. (unit: min)
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624		-* **(% style="color:blue" %)AT Command:**
	640	+* (% style="color:blue" %)**AT Command:**
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626		-**(% style="color:#037691" %)AT+ATDC=30** (%%) ~/~/ The shortest interval of two Alarm packets is 30 minutes, Means is there is an alarm packet uplink, there won't be another one in the next 30 minutes.
	642	+(% style="color:#037691" %)**AT+ATDC=30** (%%) ~/~/ The shortest interval of two Alarm packets is 30 minutes, Means is there is an alarm packet uplink, there won't be another one in the next 30 minutes.
627	627
628		-* **(% style="color:blue" %)Downlink Payload:**
	644	+* (% style="color:blue" %)**Downlink Payload:**
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630		-**(% style="color:#037691" %)0x(0D 00 1E)**(%%)     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
	646	+(% style="color:#037691" %)**0x(0D 00 1E)**(%%)     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
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632	632
633	633	=== 3.3.6 Get Alarm settings  （什么FPORT?） ===
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654	654	(% style="color:blue" %)**AT Command: AT+INTMOD**
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656		-(% border="1" cellspacing="4" style="background-color:#F2F2F2; width:510px" %)
	672	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
657	657	|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**
658	658	|(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
659	659	0