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3	3
4	4	**Table of Contents：**
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6		-{{toc/}}
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19	19
20		-
21	21	= 1. Introduction =
22	22
23	23	== 1.1 ​What is SDI-12 to LoRaWAN Converter ==
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25	25
26		-The Dragino **(% style="color:blue" %)SDI-12-LB**(%%) is a **(% style="color:blue" %)SDI-12 to LoRaWAN Converter **(%%)designed for Smart Agriculture solution.
	24	+The Dragino **SDI-12-LB** is a **SDI-12 to LoRaWAN Converter **designed for Smart Agriculture solution.
27	27
28	28	SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous [[serial communications>>url:https://en.wikipedia.org/wiki/Serial_communication]] protocol for intelligent sensors that monitor environment data. SDI-12 protocol is widely used in Agriculture sensor and Weather Station sensors.
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30		-SDI-12-LB has SDI-12 interface and support 12v output to power external SDI-12 sensor. It can get the environment data from SDI-12 sensor and sends out the data via LoRaWAN wireless protocol.
	28	+**SDI-12-LB** has SDI-12 interface and support 12v output to power external SDI-12 sensor. It can get the environment data from SDI-12 sensor and sends out the data via LoRaWAN wireless protocol.
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32		-The LoRa wireless technology used in SDI-12-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.
	30	+The LoRa wireless technology used in **SDI-12-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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34		-SDI-12-LB is powered by **(% style="color:blue" %)8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
	32	+**SDI-12-LB** is powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use up to 5 years.
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36		-Each SDI-12-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.
	34	+Each **SDI-12-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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39	39	[[image:image-20230201084414-1.png||height="464" width="1108"]]
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	43	+
44	44	== ​1.2 Features ==
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46	46
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56	56	* Downlink to change configure
57	57	* 8500mAh Battery for long term use
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59		-
60	60	== 1.3 Specification ==
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63		-**(% style="color:#037691" %)Micro Controller:**
	62	+**Micro Controller:**
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65	65	* MCU: 48Mhz ARM
66	66	* Flash: 256KB
67	67	* RAM: 64KB
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69		-**(% style="color:#037691" %)Common DC Characteristics:**
	68	+**Common DC Characteristics:**
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71	71	* Supply Voltage: 2.5v ~~ 3.6v
72	72	* Operating Temperature: -40 ~~ 85°C
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74		-**(% style="color:#037691" %)LoRa Spec:**
	73	+**LoRa Spec:**
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76	76	* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
77	77	* Max +22 dBm constant RF output vs.
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78	78	* RX sensitivity: down to -139 dBm.
79	79	* Excellent blocking immunity
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81		-**(% style="color:#037691" %)Current Input Measuring :**
	80	+**Current Input Measuring :**
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83	83	* Range: 0 ~~ 20mA
84	84	* Accuracy: 0.02mA
85	85	* Resolution: 0.001mA
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87		-**(% style="color:#037691" %)Voltage Input Measuring:**
	86	+**Voltage Input Measuring:**
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89	89	* Range: 0 ~~ 30v
90	90	* Accuracy: 0.02v
91	91	* Resolution: 0.001v
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93		-**(% style="color:#037691" %)Battery:**
	92	+**Battery:**
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95	95	* Li/SOCI2 un-chargeable battery
96	96	* Capacity: 8500mAh
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98	98	* Max continuously current: 130mA
99	99	* Max boost current: 2A, 1 second
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101		-**(% style="color:#037691" %)Power Consumption**
	100	+**Power Consumption**
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103	103	* Sleep Mode: 5uA @ 3.3v
104	104	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
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106		-
107	107	== 1.4 Connect to SDI-12 Sensor ==
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114	114	== 1.5 Sleep mode and working mode ==
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117		-**(% style="color:blue" %)Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
	115	+**Deep Sleep Mode: **Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
118	118
119		-**(% style="color:blue" %)Working Mode: **(%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
	117	+**Working Mode: **In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
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121	121
122	122	== 1.6 Button & LEDs ==