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15	15	== 1.1 What is S31x-LB LoRaWAN Temperature & Humidity Sensor ==
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19	19	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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23	23	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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27	27	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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31	31	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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35	35	S31x-LB has max 3 probes which measure maximum 3 temperature points.
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39	39	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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43	43	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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47	47	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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50	50
51	51	== 1.2 ​Features ==
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560	560
561	561	(% style="color:blue" %)**AT Command: AT+TDC**
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563		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	547	+(% border="1" cellspacing="4" style="background-color:#F2F2F2; width:510px" %)
564	564	|=(% style="width: 156px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3" %)**Function**|=(% style="background-color:#D9E2F3" %)**Response**
565	565	|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
566	566	30000
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593	593
594	594	=== 3.3.3 Set Temperature Alarm Threshold: ===
595	595
596		-* (% style="color:blue" %)**AT Command:**
	580	+* **(% style="color:blue" %)AT Command:**
597	597
598		-(% style="color:#037691" %)**AT+SHTEMP=min,max**
	582	+**(% style="color:#037691" %)AT+SHTEMP=min,max**
599	599
600	600	* When min=0, and max≠0, Alarm higher than max
601	601	* When min≠0, and max=0, Alarm lower than min
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606	606	AT+SHTEMP=0,30   ~/~/ Alarm when temperature higher than 30.
607	607
608		-* (% style="color:blue" %)**Downlink Payload:**
	592	+* **(% style="color:blue" %)Downlink Payload:**
609	609
610		-(% style="color:#037691" %)**0x(0C 01 00 1E)**  (%%) ~/~/Set AT+SHTEMP=0,30
	594	+**(% style="color:#037691" %)0x(0C 01 00 1E)**  (%%) ~/~/Set AT+SHTEMP=0,30
611	611
612		-(% style="color:red" %)**(note: 3^^rd^^ byte= 0x00 for low limit(not set), 4^^th^^ byte = 0x1E for high limit: 30)**
	596	+**(% 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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614	614
615	615	=== 3.3.4 Set Humidity Alarm Threshold: ===
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617		-* (% style="color:blue" %)**AT Command:**
	601	+* **(% style="color:blue" %)AT Command:**
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619		-(% style="color:#037691" %)**AT+SHHUM=min,max**
	603	+**(% style="color:#037691" %)AT+SHHUM=min,max**
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621	621	* When min=0, and max≠0, Alarm higher than max
622	622	* When min≠0, and max=0, Alarm lower than min
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627	627	AT+SHHUM=70,0   ~/~/ Alarm when humidity lower than 70%.
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629		-* (% style="color:blue" %)**Downlink Payload:**
	613	+* **(% style="color:blue" %)Downlink Payload:**
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631		-(% style="color:#037691" %)**0x(0C 02 46 00)**(%%)  ~/~/Set AT+SHTHUM=70,0
	615	+**(% style="color:#037691" %)0x(0C 02 46 00)**(%%)  ~/~/Set AT+SHTHUM=70,0
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633		-(% style="color:red" %)**(note: 3^^rd^^ byte= 0x46 for low limit (70%), 4^^th^^ byte = 0x00 for high limit (not set))**
	617	+**(% 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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635	635
636	636	=== 3.3.5 Set Alarm Interval: ===
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638	638	The shortest time of two Alarm packet. (unit: min)
639	639
640		-* (% style="color:blue" %)**AT Command:**
	624	+* **(% style="color:blue" %)AT Command:**
641	641
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.
	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.
643	643
644		-* (% style="color:blue" %)**Downlink Payload:**
	628	+* **(% style="color:blue" %)Downlink Payload:**
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646		-(% style="color:#037691" %)**0x(0D 00 1E)**(%%)     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
	630	+**(% style="color:#037691" %)0x(0D 00 1E)**(%%)     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
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648	648
649	649	=== 3.3.6 Get Alarm settings  （什么FPORT?） ===
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670	670	(% style="color:blue" %)**AT Command: AT+INTMOD**
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672		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	656	+(% border="1" cellspacing="4" style="background-color:#F2F2F2; width:510px" %)
673	673	|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**
674	674	|(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
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