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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]]
3	3
4		-**Contents:**
5	5
6		-{{toc/}}
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8	8
	7	+**Table of Contents:**
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	15	+
15	15	= 1.  Introduction =
16	16
17		-== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
	18	+== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
18	18
19	19	(((
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25	25	)))
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27	27	(((
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32	32	It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
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34	34
35	35	(((
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40	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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43	43	(((
44		-
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46		-
47		-(((
48	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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51	51	(((
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56	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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58	58
59	59	(((
60		-
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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	66	)))
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87	87	* 4000mAh or 8500mAh Battery for long term use
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89	89
90		-
91		-
92	92	== 1.3  Specification ==
93	93
94	94	=== 1.3.1  Rated environmental conditions ===
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96	96	[[image:image-20220610154839-1.png]]
97	97
98	98	(((
99		-**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)**
	78	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
	79	+
	80	+**~ 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)**
100	100	)))
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133	133	* Bottom water level monitoring
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135	135
136		-
137		-
138	138	== 1.6  Pin mapping and power on ==
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171	171	)))
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	154	+
174	174	(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
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	174	+
	175	+
193	193	**Add APP EUI in the application**
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290	290	* 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.
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292	292
293		-
294		-
295	295	=== 2.3.3  Interrupt Pin ===
296	296
297	297	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	* Blink once when device transmit a packet.
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870	870
871		-
872		-
873	873	== 2.8  ​Firmware Change Log ==
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1087	1087	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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1090		-
1091		-
1092	1092	= 4.  FAQ =
1093	1093
1094	1094	== 4.1  What is the frequency plan for LDDS75? ==
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1148	1148	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1149	1149	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
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	1128	+
1151	1151	= 7. ​ Packing Info =
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1162	1162	* Package Size / pcs : cm
1163	1163	* Weight / pcs : g
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1165	1165	= 8.  ​Support =
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1167	1167	* 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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	1	+XWiki.Xiaoling

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	1	+117.0 KB

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