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5	5	**Table of Contents：**
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7		-{{toc/}}
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14	14	= 1. Introduction =
15	15
16	16	== 1.1 What is LoRaWAN Pressure Sensor ==
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18	18
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.
	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.
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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.
	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.
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23	23	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.
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25	25	PS-LB supports BLE configure and wireless OTA update which make user easy to use.
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27		-PS-LB is powered by **(% style="color:blue" %)8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
	34	+PS-LB is powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use up to 5 years.
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29	29	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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52	52	== 1.3 Specification ==
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55		-**(% style="color:#037691" %)Micro Controller:**
	62	+**Micro Controller:**
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57	57	* MCU: 48Mhz ARM
58	58	* Flash: 256KB
59	59	* RAM: 64KB
60	60
61		-**(% style="color:#037691" %)Common DC Characteristics:**
	68	+**Common DC Characteristics:**
62	62
63	63	* Supply Voltage: 2.5v ~~ 3.6v
64	64	* Operating Temperature: -40 ~~ 85°C
65	65
66		-**(% style="color:#037691" %)LoRa Spec:**
	73	+**LoRa Spec:**
67	67
68	68	* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
69	69	* Max +22 dBm constant RF output vs.
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70	70	* RX sensitivity: down to -139 dBm.
71	71	* Excellent blocking immunity
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73		-**(% style="color:#037691" %)Current Input Measuring :**
	80	+**Current Input Measuring :**
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75	75	* Range: 0 ~~ 20mA
76	76	* Accuracy: 0.02mA
77	77	* Resolution: 0.001mA
78	78
79		-**(% style="color:#037691" %)Voltage Input Measuring:**
	86	+**Voltage Input Measuring:**
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81	81	* Range: 0 ~~ 30v
82	82	* Accuracy: 0.02v
83	83	* Resolution: 0.001v
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85		-**(% style="color:#037691" %)Battery:**
	92	+**Battery:**
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87	87	* Li/SOCI2 un-chargeable battery
88	88	* Capacity: 8500mAh
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90	90	* Max continuously current: 130mA
91	91	* Max boost current: 2A, 1 second
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93		-**(% style="color:#037691" %)Power Consumption**
	100	+**Power Consumption**
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95	95	* Sleep Mode: 5uA @ 3.3v
96	96	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
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816	816	[[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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819	819	**Step 2:** Open it and choose
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