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1		-LDDS45 - LoRaWAN Distance Detection Sensor User Manual
	1	+LDDS75 - LoRaWAN Distance Detection Sensor User Manual

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1	1	(% style="text-align:center" %)
2		-[[image:1654912614655-664.png||height="530" width="628"]]
	2	+[[image:1654846127817-788.png]]
3	3
4	4	**Contents:**
5	5
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21	21
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24		-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.
	24	+The Dragino LDDS75 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 LDDS75 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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40		-The LoRa wireless technology used in LDDS45 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.
	40	+The LoRa wireless technology used in LDDS75 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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48		-LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
	48	+LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
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56		-Each LDDS45 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
	56	+Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
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64	64	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
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71		-[[image:1654912858581-740.png]]
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	70	+[[image:1654847051249-359.png]]
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76	76	== ​1.2  Features ==
77	77
78	78	* LoRaWAN 1.0.3 Class A
79		-* Ultra-low power consumption
	77	+* Ultra low power consumption
80	80	* Distance Detection by Ultrasonic technology
81		-* Flat object range 30mm - 4500mm
	79	+* Flat object range 280mm - 7500mm
82	82	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
83		-* Measure Angle: 60°
84	84	* Cable Length : 25cm
85	85	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
86	86	* AT Commands to change parameters
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87	87	* Uplink on periodically
88	88	* Downlink to change configure
89	89	* IP66 Waterproof Enclosure
90		-* 8500mAh Battery for long term use
	87	+* 4000mAh or 8500mAh Battery for long term use
91	91
92		-
93		-
94	94	== 1.3  Specification ==
95	95
96	96	=== 1.3.1  Rated environmental conditions ===
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97	97
98	98	[[image:image-20220610154839-1.png]]
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100		-
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102		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
103		-
104		-**~ 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)**
	96	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  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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137	137	* Sewer
138	138	* Bottom water level monitoring
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140		-
141		-
142	142	== 1.6  Pin mapping and power on ==
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293	293	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
294	294	* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
295	295
296		-
297		-
298	298	=== 2.3.3  Interrupt Pin ===
299	299
300	300	This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
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871	871	* Blink once when device transmit a packet.
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873	873
874		-
875	875	== 2.8  ​Firmware Change Log ==
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1062	1062	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1063	1063	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1069		-
1070		-
1071	1071	== 3.3  Set Interrupt Mode ==
1072	1072
1073	1073	Feature, Set Interrupt mode for GPIO_EXIT.

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