send-message-to-magic.ts

    update(red: number, green: number, blue: number, white: number) {
        const color = [86, red, green, blue, white, 240, 170].map(param => {
            return this.convertToHexString(param);
        }).join(",");

        const updateMessage = this.getMessage(this.magicBlue.UUID, color);
        this.bluetoothService.write(updateMessage);
    }

    getMessage(UUID: string, value: string): any {
        return {
            peripheralUUID: UUID,
            serviceUUID: 'ffe5',
            characteristicUUID: 'ffe9',
            value: value
        };
    }