Sensor Telemetry

The examples/sensor-packet/ directory demonstrates a basic Vexil schema for sensor telemetry data.

Schema

namespace sensor.packet

enum SensorKind : u8 {
    Temperature @0
    Humidity    @1
    Pressure    @2
}

message SensorReading {
    channel  @0 : u4
    kind     @1 : SensorKind
    value    @2 : u16
    sequence @3 : u32 @varint
}

This schema packs a sensor reading into a compact binary format:

• channel uses only 4 bits (supports 16 channels)
• kind uses 8 bits for the enum discriminant
• value is a fixed 16-bit reading
• sequence uses variable-length encoding (small sequence numbers take fewer bytes)

Running

# Generate Rust code
vexilc codegen examples/sensor-packet/sensor.vexil --target rust

# Generate TypeScript code
vexilc codegen examples/sensor-packet/sensor.vexil --target typescript

Source

examples/sensor-packet/