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Title

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1		-LDDS75 - LoRaWAN Distance Detection Sensor User Manual
	1	+LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual

Content

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1	1	(% style="text-align:center" %)
2		-[[image:1654846127817-788.png]]
	2	+[[image:1655254599445-662.png]]
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7		-
8	8	**Table of Contents:**
9	9
10		-{{toc/}}
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17	17
18		-
19	19	= 1.  Introduction =
20	20
21		-== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
	18	+== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
22	22
23	23	(((
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28		-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.
	25	+(((
	26	+The Dragino LDDS20 is a (% style="color:#4472c4" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:#4472c4" %)**none-contact method **(%%)to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
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36		-It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
	34	+The LDDS20 sensor is installed directly below the container to detect the height of the liquid level. User doesn’t need to open a hole on the container to be tested. The (% style="color:#4472c4" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**.
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44		-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.
	42	+LDDS20 uses ultrasonic sensing technology for distance measurement. LDDS20 is of high accuracy to measure various liquid such as: (% style="color:#4472c4" %)**toxic substances**(%%), (% style="color:#4472c4" %)**strong acids**(%%), (% style="color:#4472c4" %)**strong alkalis**(%%) and (% style="color:#4472c4" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
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52		-LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
	50	+The LoRa wireless technology used in LDDS20 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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60		-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.
	58	+LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
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	66	+Each LDDS20 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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68	68	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
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74	74	[[image:1654847051249-359.png]]
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90	90	* IP66 Waterproof Enclosure
91	91	* 4000mAh or 8500mAh Battery for long term use
92	92
93		-
94		-
95	95	== 1.3  Specification ==
96	96
97	97	=== 1.3.1  Rated environmental conditions ===
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99	99	[[image:image-20220610154839-1.png]]
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102		-**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)**
	109	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
	110	+
	111	+**~ 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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135	135	* Sewer
136	136	* Bottom water level monitoring
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138		-
139		-
140	140	== 1.6  Pin mapping and power on ==
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176	176	(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
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195	195	**Add APP EUI in the application**
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291	291	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
292	292	* 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.
293	293
294		-
295		-
296	296	=== 2.3.3  Interrupt Pin ===
297	297
298	298	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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868	868	* Solid ON for 5 seconds once device successful Join the network.
869	869	* Blink once when device transmit a packet.
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871		-
872		-
873	873	== 2.8  ​Firmware Change Log ==
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1086	1086	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1087	1087	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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1089		-
1090		-
1091	1091	= 4.  FAQ =
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1093	1093	== 4.1  What is the frequency plan for LDDS75? ==
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1147	1147	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1148	1148	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
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1150		-
1151		-
1152	1152	= 7. ​ Packing Info =
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1163	1163	* Package Size / pcs : cm
1164	1164	* Weight / pcs : g
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1168	1168	= 8.  ​Support =
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1170	1170	* 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.

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Author

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	1	+XWiki.Xiaoling

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	1	+117.0 KB

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