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8 8  **RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
9 9  
10 10  
11 +**Table of Contents:**
11 11  
12 12  
13 13  
14 14  
15 15  
17 += 1.Introduction =
16 16  
17 -1. Introduction
18 -11. What is RS485-BL RS485 to LoRaWAN Converter
19 +== 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
19 19  
21 +(((
22 +
23 +)))
20 20  
25 +(((
21 21  The Dragino RS485-BL is a **RS485 / UART to LoRaWAN Converter** for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-BL converter, and configure RS485-BL to periodically read sensor data and upload via LoRaWAN network to IoT server.
27 +)))
22 22  
23 -
29 +(((
24 24  RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides **a 3.3v output** and** a 5v output** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
31 +)))
25 25  
26 -
33 +(((
27 27  RS485-BL is IP67 **waterproof** and powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use for several years.
35 +)))
28 28  
29 -
37 +(((
30 30  RS485-BL runs standard **LoRaWAN 1.0.3 in Class A**. It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
39 +)))
31 31  
32 -
41 +(((
33 33  For data uplink, RS485-BL sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-BL will process these returns data according to user-define rules to get the final payload and upload to LoRaWAN server.
43 +)))
34 34  
35 -
45 +(((
36 36  For data downlink, RS485-BL runs in LoRaWAN Class A. When there is downlink commands from LoRaWAN server, RS485-BL will forward the commands from LoRaWAN server to RS485 devices.
47 +)))
37 37  
38 -
49 +(((
39 39  Each RS485-BL pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.
51 +)))
40 40  
41 41  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
42 42  
55 +== 1.2 Specifications ==
43 43  
44 -1.
45 -11. Specifications
46 -
47 47  **Hardware System:**
48 48  
49 49  * STM32L072CZT6 MCU
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54 54  *
55 55  ** 20dB Transmit: 130mA@3.3v
56 56  
57 -
58 58  **Interface for Model:**
59 59  
60 60  * 1 x RS485 Interface
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64 64  * 1 x Interrupt Interface
65 65  * 1 x Controllable 5V output, max
66 66  
67 -
68 68  **LoRa Spec:**
69 69  
70 70  * Frequency Range:
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81 81  * Built-in bit synchronizer for clock recovery.
82 82  * Preamble detection.
83 83  * 127 dB Dynamic Range RSSI.
84 -* Automatic RF Sense and CAD with ultra-fast AFC.
92 +* Automatic RF Sense and CAD with ultra-fast AFC. ​​​
85 85  
94 +== 1.3 Features ==
86 86  
87 -*
88 -*1. Features
89 89  * LoRaWAN Class A & Class C protocol (default Class A)
90 90  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
91 91  * AT Commands to change parameters
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95 95  * Support Modbus protocol
96 96  * Support Interrupt uplink
97 97  
105 +== 1.4 Applications ==
98 98  
99 -*
100 -*1. Applications
101 101  * Smart Buildings & Home Automation
102 102  * Logistics and Supply Chain Management
103 103  * Smart Metering
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105 105  * Smart Cities
106 106  * Smart Factory
107 107  
114 +== 1.5 Firmware Change log ==
108 108  
109 -1.
110 -11. Firmware Change log
116 +[[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/||style="background-color: rgb(255, 255, 255);"]]
111 111  
112 -[[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/]]
118 +== 1.6 Hardware Change log ==
113 113  
114 -
115 -1.
116 -11. Hardware Change log
117 -
118 -
120 +(((
119 119  v1.4
122 +)))
120 120  
124 +(((
121 121  ~1. Change Power IC to TPS22916
126 +)))
122 122  
123 123  
129 +(((
124 124  v1.3
131 +)))
125 125  
133 +(((
126 126  ~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
135 +)))
127 127  
128 128  
138 +(((
129 129  v1.2
140 +)))
130 130  
131 -Release version
142 +(((
143 +Release version ​​​​​
144 +)))
132 132  
146 += 2. Pin mapping and Power ON Device =
133 133  
134 -
135 -
136 -
137 -1. Pin mapping and Power ON Device
138 -
139 139  The RS485-BL is powered on by 8500mAh battery. To save battery life, RS485-BL is shipped with power off. User can put the jumper to power on RS485-BL.
140 140  
150 +[[image:1652953055962-143.png||height="387" width="728"]]
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142 142  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
143 143  
144 -
145 -
146 146  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
147 147  
148 148  
149 149  
158 +3. Operation Mode
159 +3.1 How it works?
150 150  
151 -
152 -
153 -1. Operation Mode
154 -11. How it works?
155 -
156 156  The RS485-BL is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-BL. It will auto join the network via OTAA.
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