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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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113	113	**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
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115		-**~ b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
	114	+**~ b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
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154	154	== 1.6  Pin mapping and power on ==
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310	310	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
311	311	* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
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313	313	=== 2.3.3  Interrupt Pin ===
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315	315	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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1019		-AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
	1019	+AT Command Connection: See [[FAQ>>||anchor="H5.A0FAQ"]].
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1158	1158	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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1162	1162	= 5.  FAQ =
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1164	1164	== 5.1  What is the frequency plan for LDDS45? ==
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1203	1203	* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
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1207	1207	= 8. ​ Packing Info =
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1219	1219	* Weight / pcs : g
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1223	1223	= 9.  ​Support =
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1225	1225	* 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.