export declare enum Blink1_LEDN {
    ALL = 0,
    LEDA = 1,
    LEDB = 2
}
export declare type RGBData = {
    r: number;
    g: number;
    b: number;
};
export declare type PatternLineData = {
    r: number;
    g: number;
    b: number;
    fadeMillis: number;
};
export declare enum BlinkRate {
    SLOW = 1000,
    MED = 500,
    FAST = 250,
    VERY_FAST = 100
}
/**
 * An asynchronous api for controlling blink(1) USB LED devices.
 */
export declare class Blink1 {
    private _blink1;
    private _isClosed;
    private _timeout;
    /**
     * Find all connected blink(1) devices.
     * @returns Array of found blink(1) serial numbers.
     */
    static devices(): Array<string>;
    /**
     * Utility method that a sender can await on from an async function or method
     * to create a delay-like execution experience.
     * @param [millis=1000] - delay period in milliseconds, if millis <= 0 then 2^31
     * @returns A Promise that the sender can await on to simulate a delay
     */
    static delay(millis?: number): Promise<void>;
    /**
     * Create a high-level reference to a blink(1) HID device.
     * @param [serialNumber] The serial number of the device to reference (see devices()).
     *                       When undefined choose the first blink(1) device found.
     * @param [enableDegamma=true] Enablement for degamma color correction (crappy name)
     */
    constructor(serialNumber?: string, enableDegamma?: boolean);
    /**
     * Get the degamma setting.
     * Default value is true
     * @returns degamma enabled flag
     */
    get enableDegamma(): boolean;
    /**
     * Update the degamma setting.
     * @param enabled The new enabled or disabled value
     */
    set enableDegamma(enabled: boolean);
    /**
     * Return the version number of the blink(1) HID device.
     * @returns Promise<number> with version string to await for completion
     */
    version(): Promise<number>;
    /**
     * Close the underlying HID device.
     * @returns Promise<void> to await for completion
     */
    close(): Promise<void>;
    isClosed(): boolean;
    /**
     * Transition one or both LEDs to a new RGB color.
     * @param fadeMillis The milliseconds for the transition.
     * @param [red=0] The red color value [0-255].
     * @param [green=0] The green color value [0-255].
     * @param [blue=0] The blue color value [0-255].
     * @param [led=Blink1_LEDN.ALL] Led(s) to update.
     * @returns Promise<void> to await for completion
     */
    fadeToRGB(fadeMillis: number, red?: number, green?: number, blue?: number, led?: Blink1_LEDN): Promise<void>;
    /**
     * Access the device current RGB value.
     * @param led The led to read the RGB value from.
     * @returns A promise that resolves to the current RGB values.
     */
    rgb(led: Blink1_LEDN): Promise<RGBData>;
    /**
     * Immediately output an RGB color. For mk2 devices both LEDs will
     * present the RGB color.
     * @param [red=0] The red color value [0-255].
     * @param [green=0] The green color value [0-255].
     * @param [blue=0] The blue color value [0-255].
     * @returns Promise<void> to await for completion
     */
    setRGB(red?: number, green?: number, blue?: number): Promise<void>;
    /**
     * Immediately disable output.
     * @returns Promise<void> to await for completion
     */
    off(): Promise<void>;
    /**
     * Animate the sequence of color patterns in RAM beginning at a specific index in the sequence.
     * @param startPosition The index [0-31] into the sequence of color patterns.
     * @returns Promise<void> to await for completion
     */
    play(startPosition?: number): Promise<void>;
    /**
     * Repeatedly animate a range of color patterns in RAM
     * beginning at start index in the sequence to an end index
     * the sequence.
     * @param [startIndex=0] The start index [0-31] in the sequence of color patterns
     * @param [endIndex=0] The end index [0-31] in the sequence of color patterns
     * @param [count=1] The number of times to loop, 0 = loop infinitely
     * @returns Promise<void> to await for completion
     */
    playLoop(startPosition?: number, endPosition?: number, count?: number): Promise<void>;
    /**
     * Immediately stop presenting color patterns from RAM.
     * @returns Promise<void> to await for completion
     */
    stop(): Promise<void>;
    /**
     * Return the color pattern data at position in RAM.
     * @param [position=0] The index [0-31] into the sequence of color patterns
     * @returns Promise<string> returnin the pattern line read
     */
    readPatternLine(position?: number): Promise<string>;
    /**
     * Insert a new color pattern into the sequence of color patterns in RAM.
     * @param fadeMillis The duration in milliseconds for the transition from the current color to the new RGB colors of this pattern
     * @param [red=0] The red color value [0-255].
     * @param [green=0] The green color value [0-255].
     * @param [blue=0] The blue color value [0-255].
     * @param [position=0] The position [0-31] in the color sequence to insert this pattern.
     * @returns Promise<void> to await for completion
     */
    writePatternLine(fadeMillis: number, red?: number, green?: number, blue?: number, position?: number): Promise<void>;
    /**
     * Save all patterns in to Blink(1) non-volatile memory.
     * @returns Promise<void> to await for completion
     */
    savePattern(): Promise<void>;
    /**
    * Clear all pattern data from Blink(1) non-volatile memory.
    * @returns Promise<void> to await for completion
    */
    clearPattern(): Promise<void>;
    /**
     * Set the led to which future writePattern() calls will apply.
     * @param led The led to make default
     * @returns Promise<void> to await for completion
     */
    setLedN(led?: Blink1_LEDN): Promise<void>;
    /**
     * Enable the ServerDown feature that will trigger a display pattern
     * @param triggerMillis
     * @returns Promise<void> to await for completion
     */
    enableServerDown(triggerMillis?: number): Promise<unknown>;
    /**
     * Disable the ServerDown feature.
     * @returns A promise to await on.
     */
    disableServerDown(): Promise<unknown>;
    /**
     * Continuously play an alternating pattern of the rgb color parameter in an on/off sequence.
     * Senders should call stop() or off() to cancel the blink loop.
     *
     * @param [red=0] The red color value [0-255].
     * @param [green=0] The green color value [0-255].
     * @param [blue=0] The blue color value [0-255].
     * @returns Promise<void> to await for completion
     */
    blink(red?: number, green?: number, blue?: number, rate?: BlinkRate): Promise<void>;
    /**
     * Send an array of PatternLineData to a blink(1) device.
     * @param patterns The array of PatternLineData
     * @param [startPos=0] Start writing patternLineData at this line
     * @returns Promise<void> to await for completion
     */
    writePattern(patterns: Array<PatternLineData>, startPos?: number): Promise<void>;
}