const SeeedStudioRelayBoard = require('js-seeed-studio-relay-board')

async function main() {
    const rpi = new SeeedStudioRelayBoard.Relay()

    // Initialize I2C controler
    await rpi.init()

    /**
     * Examples
     **/

    // Turn relay 3 ON.
    await rpi.on(3)

    // Get status of relay 3.
    await rpi.get(3)

    // Get status of all relays.
    await rpi.getAll()

    // Turn relay OFF.
    await rpi.off(3)

    // Turn all relays OFF.
    await rpi.allOff()
}