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Title

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

Content

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1	1	(% style="text-align:center" %)
2		-[[image:1654846127817-788.png]]
	2	+[[image:1654912614655-664.png||height="530" width="628"]]
3	3
4	4	**Contents:**
5	5
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21	21
22	22	(((
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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.
	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.
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37	37	)))
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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.
	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.
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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*.
	48	+LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49	49	)))
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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.
	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.
57	57	)))
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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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	66	+
65	65	)))
66	66	)))
67	67	)))
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	71	+[[image:1654912858581-740.png]]
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70		-[[image:1654847051249-359.png]]
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87	87	* 4000mAh or 8500mAh Battery for long term use
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89	89
	92	+
90	90	== 1.3  Specification ==
91	91
92	92	=== 1.3.1  Rated environmental conditions ===
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288	288
289	289
290	290
291		-
292	292	=== 2.3.3  Interrupt Pin ===
293	293
294	294	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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317	317
318	318	=== 2.3.5  Sensor Flag ===
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	322	+(((
320	320	0x01: Detect Ultrasonic Sensor
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321	321
	326	+(((
322	322	0x00: No Ultrasonic Sensor
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332	332
333	333	The payload decoder function for TTN V3 is here:
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	341	+(((
335	335	LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
	343	+)))
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858	858	* Solid ON for 5 seconds once device successful Join the network.
859	859	* Blink once when device transmit a packet.
860	860
	869	+
	870	+
861	861	== 2.8  ​Firmware Change Log ==
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863	863
	874	+(((
864	864	**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
	876	+)))
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	878	+(((
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	882	+(((
867	867	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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1008	1008	[[image:image-20220610172924-5.png]]
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1011	1011	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
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1012	1012
1013	1013
1014	1014	[[image:image-20220610172924-6.png||height="601" width="860"]]
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1032	1032	(((
1033	1033	Format: Command Code (0x01) followed by 3 bytes time value.
1034	1034
	1054	+(((
1035	1035	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1056	+)))
1036	1036
1037	1037	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1038	1038	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1039	1039	)))
	1061	+)))
1040	1040
1041	1041
1042		-
1043		-)))
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	1065	+
	1066	+
1045	1045	== 3.3  Set Interrupt Mode ==
1046	1046
1047	1047	Feature, Set Interrupt mode for GPIO_EXIT.
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1055	1055
1056	1056	Format: Command Code (0x06) followed by 3 bytes.
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1058	1058	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
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1059	1059
1060	1060	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1061	1061	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1062	1062
	1087	+
	1088	+
1063	1063	= 4.  FAQ =
1064	1064
1065	1065	== 4.1  What is the frequency plan for LDDS75? ==
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1119	1119	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1120	1120	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1121	1121
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	1149	+
1122	1122	= 7. ​ Packing Info =
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1133	1133	* Package Size / pcs : cm
1134	1134	* Weight / pcs : g
1135	1135
	1164	+
	1165	+
1136	1136	= 8.  ​Support =
1137	1137
1138	1138	* 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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