Summary

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Title

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1		-LDDS20 - LoRaWAN Liquid Level 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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6	6
7		-
8	8	**Table of Contents:**
9	9
10		-{{toc/}}
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12	12
13	13
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15	15
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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	(((
24	24
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71	71	* 4000mAh or 8500mAh Battery for long term use
72	72
73	73
74		-
75	75	== 1.3  Specification ==
76	76
77	77	=== 1.3.1  Rated environmental conditions ===
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79	79	[[image:image-20220610154839-1.png]]
80	80
81	81	(((
82		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
	78	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
83	83
84	84	**~ 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)**
85	85	)))
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118	118	* Bottom water level monitoring
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120	120
121		-
122	122	== 1.6  Pin mapping and power on ==
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124	124
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278	278	* 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.
279	279
280	280
281		-
282	282	=== 2.3.3  Interrupt Pin ===
283	283
284	284	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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855	855	* Blink once when device transmit a packet.
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857	857
858		-
859	859	== 2.8  ​Firmware Change Log ==
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861	861
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1073	1073	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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1076		-
1077	1077	= 4.  FAQ =
1078	1078
1079	1079	== 4.1  What is the frequency plan for LDDS75? ==
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1134	1134	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
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1137		-
1138	1138	= 7. ​ Packing Info =
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1150	1150	* Weight / pcs : g
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1153		-
1154	1154	= 8.  ​Support =
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1156	1156	* 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.