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5	5	**Table of Contents：**
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	7	+{{toc/}}
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13		-
14		-
15		-
16		-
17		-
18		-
19		-
20		-
21	21	= 1. Introduction =
22	22
23	23	== 1.1 What is LoRaWAN Pressure Sensor ==
24	24
25	25
26		-The Dragino PS-LB series sensors are **LoRaWAN Pressure Sensor** for Internet of Things solution. PS-LB can measure Air, Water pressure and liquid level and upload the sensor data via wireless to LoRaWAN IoT server.
	19	+The Dragino PS-LB series sensors are **(% style="color:blue" %)LoRaWAN Pressure Sensor**(%%) for Internet of Things solution. PS-LB can measure Air, Water pressure and liquid level and upload the sensor data via wireless to LoRaWAN IoT server.
27	27
28		-The PS-LB series sensors include **Thread Installation Type** and **Immersion Type**, it supports different pressure range which can be used for different measurement requirement.
	21	+The PS-LB series sensors include **(% style="color:blue" %)Thread Installation Type**(%%) and **(% style="color:blue" %)Immersion Type**(%%), it supports different pressure range which can be used for different measurement requirement.
29	29
30	30	The LoRa wireless technology used in PS-LB 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.
31	31
32	32	PS-LB supports BLE configure and wireless OTA update which make user easy to use.
33	33
34		-PS-LB is powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use up to 5 years.
	27	+PS-LB is powered by **(% style="color:blue" %)8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
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36	36	Each PS-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
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59	59	== 1.3 Specification ==
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61	61
62		-**Micro Controller:**
	55	+**(% style="color:#037691" %)Micro Controller:**
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64	64	* MCU: 48Mhz ARM
65	65	* Flash: 256KB
66	66	* RAM: 64KB
67	67
68		-**Common DC Characteristics:**
	61	+**(% style="color:#037691" %)Common DC Characteristics:**
69	69
70	70	* Supply Voltage: 2.5v ~~ 3.6v
71	71	* Operating Temperature: -40 ~~ 85°C
72	72
73		-**LoRa Spec:**
	66	+**(% style="color:#037691" %)LoRa Spec:**
74	74
75	75	* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
76	76	* Max +22 dBm constant RF output vs.
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77	77	* RX sensitivity: down to -139 dBm.
78	78	* Excellent blocking immunity
79	79
80		-**Current Input Measuring :**
	73	+**(% style="color:#037691" %)Current Input Measuring :**
81	81
82	82	* Range: 0 ~~ 20mA
83	83	* Accuracy: 0.02mA
84	84	* Resolution: 0.001mA
85	85
86		-**Voltage Input Measuring:**
	79	+**(% style="color:#037691" %)Voltage Input Measuring:**
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88	88	* Range: 0 ~~ 30v
89	89	* Accuracy: 0.02v
90	90	* Resolution: 0.001v
91	91
92		-**Battery:**
	85	+**(% style="color:#037691" %)Battery:**
93	93
94	94	* Li/SOCI2 un-chargeable battery
95	95	* Capacity: 8500mAh
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97	97	* Max continuously current: 130mA
98	98	* Max boost current: 2A, 1 second
99	99
100		-**Power Consumption**
	93	+**(% style="color:#037691" %)Power Consumption**
101	101
102	102	* Sleep Mode: 5uA @ 3.3v
103	103	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
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823	823	[[https:~~/~~/www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0>>https://www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0]]
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825		-
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827	827	**Step 2:** Open it and choose
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