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

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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
6		-{{toc/}}
7	7
8	8
9	9
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21	21
22	22	(((
23	23	(((
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.
	23	+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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26	26
27	27	(((
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37	37	)))
38	38
39	39	(((
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.
	39	+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.
41	41	)))
42	42
43	43	(((
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45	45	)))
46	46
47	47	(((
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*.
	47	+LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49	49	)))
50	50
51	51	(((
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53	53	)))
54	54
55	55	(((
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.
	55	+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	)))
58	58
59	59	(((
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62	62
63	63	(((
64	64	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
	64	+
	65	+
65	65	)))
66	66	)))
67	67	)))
68	68
	70	+[[image:1654912858581-740.png]]
69	69
70		-[[image:1654847051249-359.png]]
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72	72
73	73
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74	74	== ​1.2  Features ==
75	75
76	76	* LoRaWAN 1.0.3 Class A
77		-* Ultra low power consumption
	78	+* Ultra-low power consumption
78	78	* Distance Detection by Ultrasonic technology
79		-* Flat object range 280mm - 7500mm
	80	+* Flat object range 30mm - 4500mm
80	80	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	82	+* Measure Angle: 60°
81	81	* Cable Length : 25cm
82	82	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
83	83	* AT Commands to change parameters
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84	84	* Uplink on periodically
85	85	* Downlink to change configure
86	86	* IP66 Waterproof Enclosure
87		-* 4000mAh or 8500mAh Battery for long term use
	89	+* 8500mAh Battery for long term use
88	88
	91	+
	92	+
89	89	== 1.3  Specification ==
90	90
91	91	=== 1.3.1  Rated environmental conditions ===
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92	92
93	93	[[image:image-20220610154839-1.png]]
94	94
	99	+
95	95	(((
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)**
	101	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
	102	+
	103	+**~ 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)**
97	97	)))
98	98
99	99
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129	129	* Sewer
130	130	* Bottom water level monitoring
131	131
	139	+
	140	+
132	132	== 1.6  Pin mapping and power on ==
133	133
134	134
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136	136
137	137
138	138
139		-= 2.  Configure LDDS75 to connect to LoRaWAN network =
	148	+= 2.  Configure LDDS45 to connect to LoRaWAN network =
140	140
141	141	== 2.1  How it works ==
142	142
143	143	(((
144		-The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
	153	+The LDDS45 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS45. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
145	145	)))
146	146
147	147	(((
148		-In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
	157	+In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS45.
149	149	)))
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154	154
155	155	(((
156	156	Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
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	167	+
157	157	)))
158	158
	170	+[[image:1654913911773-521.png]]
	171	+
	172	+
159	159	(((
160		-[[image:1654848616367-242.png]]
	174	+
161	161	)))
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165	165	)))
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168		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
	182	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
169	169	)))
170	170
171	171	(((
172		-Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
	186	+Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
173	173	)))
174	174
175	175	[[image:image-20220607170145-1.jpeg]]
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196	196
197	197	[[image:image-20220610161353-7.png]]
198	198
	213	+**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
199	199
	215	+
	216	+
200	200	You can also choose to create the device manually.
201	201
202	202	[[image:image-20220610161538-8.png]]
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209	209
210	210
211	211
212		-(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	229	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
213	213
214	214
215	215	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
216	216
217		-[[image:image-20220610161724-10.png]]
	234	+[[image:image-20220611102908-2.png]]
218	218
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221		-(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	238	+(% style="color:blue" %)**Step 3**(%%)**:** The LDDS45 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
222	222	)))
223	223
224	224	[[image:1654849068701-275.png]]
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229	229
230	230	(((
231	231	(((
232		-LDDS75 will uplink payload via LoRaWAN with below payload format:
233		-)))
	249	+LDDS45 will uplink payload via LoRaWAN with below payload format:
234	234
235		-(((
236		-Uplink payload includes in total 4 bytes.
237		-Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
	251	+Uplink payload includes in total 8 bytes.
238	238	)))
239	239	)))
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283	283	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
284	284	* 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.
285	285
	300	+
	301	+
286	286	=== 2.3.3  Interrupt Pin ===
287	287
288	288	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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859	859	* Blink once when device transmit a packet.
860	860
861	861
	878	+
862	862	== 2.8  ​Firmware Change Log ==
863	863
864	864
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1049	1049	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1050	1050	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1051	1051	)))
	1069	+)))
1052	1052
1053	1053
1054		-
1055		-)))
1056	1056
	1073	+
	1074	+
1057	1057	== 3.3  Set Interrupt Mode ==
1058	1058
1059	1059	Feature, Set Interrupt mode for GPIO_EXIT.

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