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User Manual for LoRaWAN End Nodes - RS485-LN – RS485 to LoRaWAN Converter User Manual

Table of Contents

1.Introduction ........................................................................................................................................................................... 4

1.1What is RS485-LN RS485 to LoRaWAN Converter ................................................................................................. 4

1.2Speciﬁcations ................................................................................................................................................................. 5

1.3 Features .......................................................................................................................................................................... 6

1.4Applications .................................................................................................................................................................... 6

1.5Firmware Change log .................................................................................................................................................... 6

1.6 Hardware Change log ................................................................................................................................................... 6

2. Power ON Device .............................................................................................................................................................. 6

3.Operation Mode .................................................................................................................................................................. 7

3.1 How it works? ................................................................................................................................................................ 7

3.2 Example to join LoRaWAN network ........................................................................................................................... 7

3.3 Conﬁgure Commands to read data ........................................................................................................................... 16

3.3.1 onﬁgure UART settings for RS485 or TTL communication ............................................................................. 16

3.3.2 Conﬁgure sensors ................................................................................................................................................. 16

3.3.3 Conﬁgure read commands for each sampling ................................................................................................... 16

3.3.4 Compose the uplink payload ............................................................................................................................... 19

3.3.5 Uplink on demand ................................................................................................................................................. 22

3.3.6 Uplink on Interrupt ................................................................................................................................................. 22

3.4 Uplink Payload ............................................................................................................................................................. 22

3.5 Conﬁgure RS485-LN via AT or Downlink ................................................................................................................ 23

3.5.1 Common Commands ............................................................................................................................................ 23

3.5.2 Sensor related commands ................................................................................................................................... 23

3.5.3Sensor related commands .................................................................................................................................... 24

3.6Listening mode for RS485 network .......................................................................................................................... 28

3.7 Buttons .......................................................................................................................................................................... 30

3.8 LEDs ............................................................................................................................................................................. 30

4. Case Study ....................................................................................................................................................................... 30

5. Use AT Command ........................................................................................................................................................... 31

5.1 Access AT Command ................................................................................................................................................ 31

5.2 Common AT Command Sequence ........................................................................................................................... 32

5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ....................................................................................... 32

5.5.2 Single-channel ABP mode (Use with LG01/LG02) ........................................................................................... 32

6. FAQ .................................................................................................................................................................................... 33

6.1 How to upgrade the image? ...................................................................................................................................... 33

6.2 How to change the LoRa Frequency Bands/Region? ............................................................................................ 36

6.3 How many RS485-Slave can RS485-LN connects? .............................................................................................. 36

6.4 Compatible question to ChirpStack and TTI LoRaWAN server  ........................................................................ 36

6.5 Can i use point to point communication for RS485-LN? ........................................................................................ 36

6.6 How to Use RS485-LN to connect to RS232 devices? ........................................................................................ 36

7. Trouble Shooting .............................................................................................................................................................. 36

7.1 Downlink doesn't work, how to solve it? .................................................................................................................. 36

7.2 Why I can't join TTN V3 in US915 /AU915 bands? ............................................................................................... 36

8. Order Info .......................................................................................................................................................................... 36

9.Packing Info ....................................................................................................................................................................... 37

10. FCC Caution for RS485LN-US915 ............................................................................................................................. 37

11. Support ............................................................................................................................................................................ 38

Page 2 / 38 - last modiﬁed by Bei Jinggeng on 2022/07/08 16:50

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