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Last modified by Xiaoling on 2025/06/10 09:17
From version 24.1
edited by Edwin Chen
on 2023/04/11 13:56
Change comment: There is no comment for this version
To version 18.1
edited by Edwin Chen
on 2023/04/09 09:36
Change comment: There is no comment for this version

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1 -LHT65-PIR Temperature/Humidity/PIR Motion Sensor User Manual
1 +LHT65-PIR Temperature/Humidity/PIR Sensor User Manual
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156 156  [[image:image-20220522233300-8.png||_mstalt="428389" height="219" width="722"]]
157 157  
158 158  
159 -== 2.4 Uplink Payload~-~-Device Status, (Fport~=5) ==
159 +== 2.4 Uplink Payload~-~-Device Status, FPORT~=5 ==
160 160  
161 161  Users can use the downlink command(**0x26 01**) to ask LHT65N-PIR to send device configure detail, include device configure status. LHT65N-PIR will uplink a payload via FPort=5 to server.
162 162  
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307 307  
308 308  * Humidity:    0x025C/10=60.4%
309 309  
310 +
310 310  === 2.5.5 Ext value ===
311 311  
312 312  ==== 2.5.5.1 Ext~=0x0A, PIR Sensor ====
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394 394  
395 395  == 2.8 installation ==
396 396  
397 -~1. Don't install LHT65N-PIR outdoor or place where will get wet.
398 +~1. Don't install LHT65N-PIR outdoor or place where will get wet
398 398  
399 -2. Towards the PIR probe to the place where need to monitor activity. Below is the detect beam.
400 +2. Towards the PIR probe to the place where need to monitor activity.
400 400  
401 -Stable distance is 0~~3m. Some motion might not detected between 3~~5 m.
402 402  
403 -[[image:image-20230411135341-1.png||height="450" width="456"]]
404 404  
405 -**Notice: PIR can only detect motion activity, not to use to detect static people case.**
406 -
407 -* 1. PIR Motion Detector should not be installed near the Air conditioner places where with cold wind or hot wind flow, because PIR motion detector is sensitive with the temperature changes of the environment. Environment changes quickly will cause a false alarm.
408 -* 2. PIR should not be installed facing the glass window, facing glass window will be interfered by the outside sunlight and moving objects (people or vehicle). The infrared energy can penetrate the glass window.
409 -* 3. PIR should not be installed facing the moving objects or background changing objects, movement object will cause airflow change, it may cause false alarm.
410 -* 4. Between the detection range of PIR Motion detector, there is should be less objects.  Many objects may reduce the sensitive of detection range.
411 -* 5. Do not install more than one (2 or above) Wireless PIR in the same detection space (like at the same room).
412 -
413 -
414 -
415 415  = 3. Sensors and Accessories =
416 416  
417 417  == 3.1 E2 Extension Cable ==
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541 541  * **AT+UOA=0**  : Disable UoA
542 542  * **AT+UOA=1,2** :  Enable UoA , Calm Down Time: 2 minutes. If device already send a uplink on activity, it will not send another uplink on activiy in 2 minutes, even detect activity.
543 543  
544 -Notice: Calm Down time range is 1 ~~ 65535 minutes. If user set Calm Down time to low value, such as 1 minute, the sensor might send uplink very frequenctly and battery drain fast.
545 -
546 546  (% style="color:#4f81bd" %)**AT Command: AT+UOA**
547 547  
548 548  
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