Initial Setup for Dragino LT-22222-L Node

This guide will help to do initial setup to a Dragino LT-22222-L node: Power on and UART connectivity.

Product link: Dragino-LT-22222-L
LoRaWAN Class A & Class C
2 x Digital Input
2 x Digital Output
2 x Relay Output (AC / DC)
2 x 0~20mA Analog Input
2 x 0~30V Analog Input
Power Input 7~24V
Power adapter is not included
Datasheet: https://bit.ly/Dragino-LT-22222-L
User Manual: v1.5.7 and online version
Document base: From Dragino

View Services Buy Devices

1. Initial Setup

Main pins:

PRO: To connect to UART cable for debugging or uploading firmware.
GND: To GND of the power supply
VIN: To VCC+ of the power supply (7-24v). Recommended voltage: 12v or 24v.
ANT: To connect to the antenna.

Buttons:

RST: To reset node
PRO: To enter flashing mode

Other pins:

AVI1/2, ACI1/2: To connect to voltage/current (4-20mA) sensors.
DO1/2: Digital output
DI1/2: Digital input
RO1/2: AC/DC Relays. Up to 30V DC or 220v AC.

2. Connect to UART console (Optional)

Step 1: In the box, there is a 3.5mm program cable.

Step 2: To connect the 3.5mm program cable into PROG port of the node and UART USB into the laptop/PC.

Step 3: To open a UART console

You need to install a driver for UART USB at common-helper-programs
You need to install and configure Tera Term at common-helper-programs

Step 4: To open Tera Term and check if the frequency plan is AS923-2 for Vietnam.

Default password: 123456
Reboot: ATZ
Show all configurations: AT+CFG

Step 5: To check for LoRaWAN information.

DEUI: Node ID. Must be unique.
Required for OTAA: APPKEY.
Required for ABP: DADDR, NWKSKEY and APPSKEY
APPEUI: May or may not required by the server.

Step 6: To download the codec. It is required in the next guide.

Codec for Dragino LT-22222-L: here

Done.

5 1 vote

Article Rating

Subscribe

0 Comments

Newest

Oldest Most Voted