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11	11	= 1. Introduction =
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13	13	== 1.1 What is LoRaWAN Pressure Sensor ==
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16		-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.
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18		-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.
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20	20	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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22	22	PS-LB supports BLE configure and wireless OTA update which make user easy to use.
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24		-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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26	26	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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49	49	== 1.3 Specification ==
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52		-**Micro Controller:**
	55	+**(% style="color:#037691" %)Micro Controller:**
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54	54	* MCU: 48Mhz ARM
55	55	* Flash: 256KB
56	56	* RAM: 64KB
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58		-**Common DC Characteristics:**
	61	+**(% style="color:#037691" %)Common DC Characteristics:**
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60	60	* Supply Voltage: 2.5v ~~ 3.6v
61	61	* Operating Temperature: -40 ~~ 85°C
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63		-**LoRa Spec:**
	66	+**(% style="color:#037691" %)LoRa Spec:**
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65	65	* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
66	66	* Max +22 dBm constant RF output vs.
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67	67	* RX sensitivity: down to -139 dBm.
68	68	* Excellent blocking immunity
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70		-**Current Input Measuring :**
	73	+**(% style="color:#037691" %)Current Input Measuring :**
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72	72	* Range: 0 ~~ 20mA
73	73	* Accuracy: 0.02mA
74	74	* Resolution: 0.001mA
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76		-**Voltage Input Measuring:**
	79	+**(% style="color:#037691" %)Voltage Input Measuring:**
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78	78	* Range: 0 ~~ 30v
79	79	* Accuracy: 0.02v
80	80	* Resolution: 0.001v
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82		-**Battery:**
	85	+**(% style="color:#037691" %)Battery:**
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84	84	* Li/SOCI2 un-chargeable battery
85	85	* Capacity: 8500mAh
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87	87	* Max continuously current: 130mA
88	88	* Max boost current: 2A, 1 second
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90		-**Power Consumption**
	93	+**(% style="color:#037691" %)Power Consumption**
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92	92	* Sleep Mode: 5uA @ 3.3v
93	93	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm