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
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.
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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
Step 4: To open Tera Term and check if the frequency plan is AS923-2 for Vietnam.
Step 5: To check for LoRaWAN information.
Step 6: To download the codec. It is required in the next guide.
Done.