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35		-The Dragino LDDS45 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS45 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
	35	+The Dragino LDDS45 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)**ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS45 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
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104		-
105	105	== 1.3  Specification ==
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107	107	=== 1.3.1  Rated environmental conditions ===
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148	148	* Sewer
149	149	* Bottom water level monitoring
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151	151	== 1.6  Pin mapping and power on ==
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307	307	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
308	308	* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
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310	310	=== 2.3.3  Interrupt Pin ===
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312	312	This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.3A0SetInterruptMode"]] for the hardware and software set up.
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1016		-AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
	1019	+AT Command Connection: See [[FAQ>>||anchor="H5.A0FAQ"]].
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1155	1155	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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1159	1159	= 5.  FAQ =
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1161	1161	== 5.1  What is the frequency plan for LDDS45? ==
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1200	1200	* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
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1204	1204	= 8. ​ Packing Info =
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1216	1216	* Weight / pcs : g
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1220	1220	= 9.  ​Support =
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1222	1222	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.