MQTT RNV Publisher

A simple Rust application that publishes the RNV Live Station ticker into your MQTT Sever

Dependencies

• tokio (with full features)
• rumqttc
• serde
• serde_json
• clap
• chrono
• reqwest (with blocking)

Usage

cargo run -- --broker 192.168.1.100 --port 1883 --interval 60 --station Lettestr

Or run the binary directly:

./target/debug/mqtt-publisher --broker <address> --port <port> --interval <seconds> --station <name>

Arguments

• --broker: MQTT broker address (default: localhost)
• --port: MQTT broker port (default: 1883)
• --interval: Interval in seconds between departure data fetches (default: 300)
• --station: Station name to look up (default: Lettestr)

MQTT Topics

The application publishes departure data to the following topics:

• departure/station: Station name
• departure/outbound/station: Outbound destination station
• departure/outbound/line: Outbound line number/name
• departure/outbound/diff: Seconds until outbound departure
• departure/inbound/station: Inbound destination station
• departure/inbound/line: Inbound line number/name
• departure/inbound/diff: Seconds until inbound departure
• departure/failure: Error message if data fetch fails

Configuration

Edit src/main.rs to customize:

• Broker address (default: localhost:1883)
• MQTT topic (default: test/topic)
• Message payload