Summary

• Page properties (1 modified, 0 added, 0 removed)

Details

Page properties

Content

...	...	@@ -1,12 +1,8 @@
1	1	(% style="text-align:center" %)
2	2	[[image:1654846127817-788.png]]
3	3
	4	+**Contents:**
4	4
5		-
6		-
7		-
8		-**Table of Contents:**
9		-
10	10	{{toc/}}
11	11
12	12
...	...	@@ -24,51 +24,24 @@
24	24
25	25
26	26	(((
27		-(((
28	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.
29		-)))
30	30
31		-(((
32		-
33		-)))
34	34
35		-(((
36	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.
37		-)))
38	38
39		-(((
40		-
41		-)))
42	42
43		-(((
44	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.
45		-)))
46	46
47		-(((
48		-
49		-)))
50	50
51		-(((
52	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*.
53		-)))
54	54
55		-(((
56		-
57		-)))
58	58
59		-(((
60	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.
61		-)))
62	62
63		-(((
64		-
65		-)))
66	66
67		-(((
68	68	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
69	69	)))
70	70	)))
71		-)))
72	72
73	73
74	74	[[image:1654847051249-359.png]]
...	...	@@ -90,8 +90,6 @@
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 ===
...	...	@@ -98,12 +98,12 @@
98	98
99	99	[[image:image-20220610154839-1.png]]
100	100
101		-(((
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)**
103		-)))
	68	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
104	104
	70	+**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)**
105	105
106	106
	73	+
107	107	=== 1.3.2  Effective measurement range Reference beam pattern ===
108	108
109	109	**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
...	...	@@ -114,9 +114,7 @@
114	114
115	115
116	116
117		-(((
118	118	**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
119		-)))
120	120
121	121
122	122	[[image:1654852175653-550.png]](% style="display:none" %) ** **
...	...	@@ -136,7 +136,6 @@
136	136	* Bottom water level monitoring
137	137
138	138
139		-
140	140	== 1.6  Pin mapping and power on ==
141	141
142	142
...	...	@@ -183,17 +183,11 @@
183	183	[[image:image-20220607170145-1.jpeg]]
184	184
185	185
186		-(((
187	187	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
188		-)))
189	189
190		-(((
191	191	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
192		-)))
193	193
194		-(((
195	195	**Add APP EUI in the application**
196		-)))
197	197
198	198	[[image:image-20220610161353-4.png]]
199	199
...	...	@@ -236,15 +236,11 @@
236	236	== 2.3  ​Uplink Payload ==
237	237
238	238	(((
239		-(((
240	240	LDDS75 will uplink payload via LoRaWAN with below payload format:
241		-)))
242	242
243		-(((
244	244	Uplink payload includes in total 4 bytes.
245	245	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
246	246	)))
247		-)))
248	248
249	249	(((
250	250
...	...	@@ -279,13 +279,9 @@
279	279
280	280	=== 2.3.2  Distance ===
281	281
282		-(((
283	283	Get the distance. Flat object range 280mm - 7500mm.
284		-)))
285	285
286		-(((
287	287	For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
288		-)))
289	289
290	290
291	291	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
...	...	@@ -321,13 +321,9 @@
321	321
322	322	=== 2.3.5  Sensor Flag ===
323	323
324		-(((
325	325	0x01: Detect Ultrasonic Sensor
326		-)))
327	327
328		-(((
329	329	0x00: No Ultrasonic Sensor
330		-)))
331	331
332	332
333	333
...	...	@@ -340,9 +340,7 @@
340	340
341	341	The payload decoder function for TTN V3 is here:
342	342
343		-(((
344	344	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/]]
345		-)))
346	346
347	347
348	348
...	...	@@ -873,17 +873,10 @@
873	873	== 2.8  ​Firmware Change Log ==
874	874
875	875
876		-(((
877	877	**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/]]
878		-)))
879	879
880		-(((
881		-
882		-)))
883	883
884		-(((
885	885	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
886		-)))
887	887
888	888
889	889
...	...	@@ -1027,9 +1027,7 @@
1027	1027	[[image:image-20220610172924-5.png]]
1028	1028
1029	1029
1030		-(((
1031	1031	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:
1032		-)))
1033	1033
1034	1034
1035	1035	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -1053,19 +1053,16 @@
1053	1053	(((
1054	1054	Format: Command Code (0x01) followed by 3 bytes time value.
1055	1055
1056		-(((
1057	1057	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1058		-)))
1059	1059
1060	1060	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1061	1061	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1062	1062	)))
1063		-)))
1064	1064
1065	1065
	998	+
	999	+)))
1066	1066
1067		-
1068		-
1069	1069	== 3.3  Set Interrupt Mode ==
1070	1070
1071	1071	Feature, Set Interrupt mode for GPIO_EXIT.
...	...	@@ -1079,9 +1079,7 @@
1079	1079
1080	1080	Format: Command Code (0x06) followed by 3 bytes.
1081	1081
1082		-(((
1083	1083	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1084		-)))
1085	1085
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
...	...	@@ -1088,6 +1088,7 @@
1088	1088
1089	1089
1090	1090
	1021	+
1091	1091	= 4.  FAQ =
1092	1092
1093	1093	== 4.1  What is the frequency plan for LDDS75? ==
...	...	@@ -1149,6 +1149,7 @@
1149	1149
1150	1150
1151	1151
	1083	+
1152	1152	= 7. ​ Packing Info =
1153	1153
1154	1154
...	...	@@ -1165,6 +1165,7 @@
1165	1165
1166	1166
1167	1167
	1100	+
1168	1168	= 8.  ​Support =
1169	1169
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.